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RWR has done a lot of work in the Mill Valley area, including foundation repairs, retaining walls and drainage repairs. You may see our trucks and drilling equipment on East Blythedale, working their way up into the Mill Valley neighborhoods. The hilly Mill Valley area, at the foot of Mt Tamalpais gets a lot of rain and moisture, which can cause foundations to become unstable, and retaining walls to fail. It is important to correct these problems with well designed, well engineered plans, that are properly constructed. RWR specializes in this type of construction work in the Mill Valley area, and has great relationships with many engineers and architects working in this area. If you have a situation you’d like us to look at, please give us a call.

Here’s an example of foundation repair work we perform in the Mill Valley area. You can see this work requires skillful experienced foundation contractors and very competent crew. RWR brings you the expertise you need for your important project.

Estimate for Excavation, Demo, Drilling,
I Beams and Lagging

This estimate is based on plans. The estimate is for replacing a failed masonry retaining wall with a soldier pile wall. Our estimate includes demo and bench I beams and lagging with backfill. Our price includes all labor and material to complete the work as per the itemized Scope of Work below.

Scope of Work

Mobilization and Layout
• Mobilize to jobsite with portable drilling rigs along with other necessary equipment to complete job (See notes below).
• Layout to be completed by RWR per plans and specifications (Does not include surveyor if required).
• Daily Cleanup
• Final Cleanup

Demo and Bench
• Demo existing concrete as necessary to install new soldier pile wall.
• Cut and bench as necessary to install new all
• Off haul spoils.

Piers
• Drill five (5) 18” diameter x 8 ft maximum pier holes with portable drilling equipment. See hard rock drilling conditions. Final depths to be determined by soils engineer. Additional cost if pier lengths extended. No deduct.
• Install five (5) steel I beams (w8x18) and place concrete in holes.
• Beams are installed uncoated. Additional cost for coating or rust protection.
• Off haul drill spoils from site.
Wood Lagging
• Install 4×12 PT lagging between I beams per plans and specifications.
• Seal all cut ends with preservative. Leave ¼” gap between boards for drainage.
• Install back drain consisting of permeable class II drainage system.
• Wall height a maximum of 7 ft per plans
• Back-fill top 1 ft. behind wall with compacted native soils, to cap

Qualifications and Clarifications
• Job is bid as package.
• Includes one mobilization only.
• Prices are subject to RWR obtaining adequate supply of wood, steel, rock, concrete, and asphalt, PVC resins, PVC pipe, fittings at prices quoted at bid time and are good for 30 days.
• Proposal is based on working std 40 hours per week, 5 work days and mutually agreeable schedules.
• Survey of property lines must be done by licensed surveyor.
Exclusions
• Cost of plans, permits, bonds, testing and inspections.
• Any additional work as a result of utilities including buried pipes or irrigation pipes unless noted.
• Increased costs of excavation or drilling due to hard rock, caving or underground water. (Hard rock excavation is defined as material that requires the use of pneumatically or hydraulically operated hammers or rams to excavate.) (Hard rock drilling is defined as a penetration rate slower than 1 ft. in 5 minutes).
• Replacement of damaged landscaping, driveway or fence.
• Excavation and off hauling of hazardous materials, underground tanks, or materials unacceptable at dumps.
• Any work related to landscaping, fences or gates except as outlined
• Embedment into concrete other than standard foundation bolts
• Survey of property lines
• Landscaping or irrigation
• Any additional work for drainage
• Shoring (Shoring allowance provided) including earth shoring which exceeds shoring allowance
• Excludes installation of electrical and plumbing
• Carpentry except as needed for installation of concrete and lagging
• Erosion control or winterization

 

RWR has done a lot of work in the Mill Valley area, including foundation repairs, retaining walls and drainage repairs. You may see our trucks and drilling equipment on East Blythedale, working their way up into the Mill Valley neighborhoods. The hilly Mill Valley area, at the foot of Mt Tamalpais gets a lot of rain and moisture, which can cause foundations to become unstable, and retaining walls to fail. It is important to correct these problems with well designed, well engineered plans, that are properly constructed. RWR specializes in this type of construction work in the Mill Valley area, and has great relationships with many engineers and architects working in this area. If you have a situation you’d like us to look at, please give us a call.

Here’s an example of foundation repair work we perform in the Mill Valley area. You can see this work requires skillful experienced foundation contractors and very competent crew. RWR brings you the expertise you need for your important project.

Estimate for
Demo, Excavation,
Drilling, Concrete Piers, Grade Beams,
Retaining Wall,
Drainage and Slab
This is an estimate based on plans. The scope of work includes partial demo of existing grade beams, excavation, grade beams, retaining wall, stairs, drainage and slab. Our price includes all labor and material to complete the work as per the itemized Scope of Work below. Price is subject to receipt of final plans for construction.

Scope of Work

Mobilization and Layout
• Mobilize to jobsite.
• Daily Cleanup
• Final Cleanup
• Layout by others. Layout to include secured batter boards with all constructions lines clearly determined by surveyor or others.
• Shoring of structure to be completed by others so as not to impede concrete construction
• Soft demo by others including the removal of any electrical, mechanical or plumbing.

Partial Demo
• Saw cut and demo existing grade beams and rat slab as required for installation of new work.
• Chip down existing piers as required per plans and specifications
• Demo to be accomplished by air jack hammers
• Off haul debris

Drilling and Piers
• Drill eighteen (18) 18” holes approximately 15 ft deep with portable drilling equipment per plans and specifications. See drilling exclusions. Final depth determined by soils engineer (Note: No soils report was provided).

• Install steel cage and place concrete per plans and specifications.
• Off haul drill spoils

Excavation
• Excavate under house to allow for new additional space as required and per plans and specifications.
• Stock Pile for installation of backfill on line 1-2.
• Excavate for grade beams per plans and specifications.
• Off haul remaining spoils (Off haul allowance of a maximum of 150 yds).

Grade Beams
• Install new concrete reinforced grade beams per plans and specifications S1.

Retaining Wall
• Install new retaining walls as required per plans and specifications S1 and details on S3.
• Retaining wall width on line 1-2 is assumed to be 8 inches.
• Walls can be shotcrete or formed (RWR option).
• No color or Architectural concrete. If Shotcrete then wall is cut with even finish.

Back Fill
• Backfill and compact along line 1-2 as required with native soils.
• Additional cost of imported backfill is required.

Wall Drainage
• Install rock pocket with 4” SDR35 perf pipe under retaining walls along line 6 and exit into solid pipe to back.
• Install drainage along retaining wall on line 1-2 with 4” SDR35 per pipe and drain rock or class 2 permeable with and exit.

Slabs
• Install new 5 inch concrete slab on grade per plans and specifications S1 with #4 @ 10 inches o.c.e.w over 2 inches of sand over a 10 mil moisture barrier over 4 inches of ¾ crushed rock.

Concrete Stairs
• Install new concrete stairs along side of house from street level to bottom per plans and specifications. .
• Include approximately 80 sq. ft of landings per plans and specifications.

Qualifications and Clarifications
• Job is bid as package.
• Includes one mobilization only.
• Prices are subject to RWR obtaining adequate supply of wood, steel, rock, concrete, and asphalt, PVC resins, PVC pipe, fittings at prices quoted at bid time and are good for 30 days.
• Proposal is based on working std 40 hours per week, 5 work days and mutually agreeable schedules.
• RWR is not responsible for survey lines. Survey of property lines must be done by licensed surveyor.
• Price is subject to receipt of final plans for construction
• No retention.
• Standard insurance provisions as required.
Exclusions
• Cost of plans, permit, bonds, testing and inspections.
• Increased cost of drilling or excavation due to hard rock, underground water or caving soils including caving. (Hard rock drilling is defined as a penetration rate slower than 1 ft. in 5 minutes.) (Hard rock excavation is defined as material that cannot be excavated with a conventional backhoe or excavator bucket.)
• Any work on utilities including buried pipes or irrigation pipes.
• Replacement of damaged landscaping.
• Embedments into concrete other than foundation bolts.
• Excavation and off hauling of hazardous materials, underground tanks, or materials unacceptable at dumps.
• Structural Shoring
• Additional drainage not specifically outlined in this proposal.
• Waterproofing
• Importation of backfill material except as noted.
• Guard Rails or inserts
• Electrical or Plumbing
• Carpentry work except as required for installing walls and concrete
• Landscaping or irrigation
• No Architectural concrete or color.
• All structural steel
• All soft demo

RWR has done a lot of work in the Mill Valley area, including foundation repairs, retaining walls and drainage repairs. You may see our trucks and drilling equipment on East Blythedale, working their way up into the Mill Valley neighborhoods. The hilly Mill Valley area, at the foot of Mt Tamalpais gets a lot of rain and moisture, which can cause foundations to become unstable, and retaining walls to fail. It is important to correct these problems with well designed, well engineered plans, that are properly constructed. RWR specializes in this type of construction work in the Mill Valley area, and has great relationships with many engineers and architects working in this area. If you have a situation you’d like us to look at, please give us a call.

Here’s an example of foundation repair work we perform in the Mill Valley area. You can see this work requires skillful experienced foundation contractors and very competent crew. RWR brings you the expertise you need for your important project.

Estimate for Demo, Shoring, Drilling, Concrete Piers,
Concrete Foundation, Drainage, Waterproofing, Garage Framing Repair,
Microlam Beams and Garage Slab

This estimate is based on drawings. The scope of work includes shoring, demo of concrete and part of garage , excavation for perimeter foundation, drilling, concrete piers, installing concrete perimeter foundation, drainage, waterproofing, installation of Microlam beams, installation of new studs, installation of new shear walls and new garage slab.

Scope of Work

Mobilization and Layout
• Mobilize to jobsite with, portable drilling rigs and other necessary equipment to complete job (See notes below).
• Daily Cleanup
• Final Cleanup

Shore
• Shore living space over garage as needed to complete construction using designed shore detail.
• Note: Any obstructions due to utilities is to be handled by owner builder.

Demo Concrete
• Demo concrete garage slab and foundation as necessary to install new construction.
• Demo garage wall as necessary to install new construction per plans and specifications.
• Off haul debris from site

Piers
• Drill four (4) 18” diameter x 15 ft maximum pier holes as shown on plans and specifications S1 and S2 with portable drilling rig. See hard rock drilling conditions. Final depths to be determined by soils engineer.

• Install four (4) steel cages and place concrete in holes per plans and specifications S1.
• Off haul pier spoils from site.

Concrete Perimeter Foundation
• Excavate for new concrete grade beams per plans and specifications S1 and S2.
• Off haul spoils from site
• Dowel and epoxy into existing footing with dowels per plans and specifications.
• Install concrete reinforced perimeter beams per plans and specifications S1 and S2.

Drainage
• Along back retaining wall excavate for installation of drainage and waterproofing per plans and specifications S1 and 4/S2.
• Along back wall and along side wall outside install waterproofing Sonoshield HLM 5000 per plans and specifications S1 and 4/S2.
• Install along back retaining install perforated 4 inch SDR 35 pipe and exit to outside continuing along north exterior wall in a rock pocket per plans and specifications S1.
• Install along back retaining wall Class II permeable and cap with 1 ft of native soils continuing to the outside with 1 ft of compacted native soils.
• Continue solid 4 inch SDR 35 pipe to new riprap dispersion drain outfall per plans and specifications S1.
• Install new Riprap dispersion drain outfall per plans and specifications.

Structural Upgrade of Garage

• Install and sister 1-3/4 x 14” Microlam beams to existing wood beams per plans and specifications S1 and S2.
• Install new 3×6 PT sill per plans and specifications S1 and S2.
• Install new 2×6 studs at 16” o.c. per plans and specifications S1 and S2.
• Reblock edges at 24” o.c.
• Install four (4) new 6×6 posts and two (2) 4×4 jam posts per plans and specifications S1 and S2. Incudes EPC 86 brackets.
• Add new 2×4 PT sill per plans and specifications along back wall of garage and side wall S1 and S2. Drill and epoxy new 5/8 foundation bolts.
• Install new HTT4 brackets as required.
• Install new 5/8” plywood shear walls per plans and specifications S1 and S2.
• Note: Excludes new side door and new garage door. Excludes relevelling of upper floor. Excludes replacement of exterior siding or exterior flashing or exterior paper. Excludes Gypsum.
Garage Slab
• Install approximately 340 sq ft of new 4 inch concrete slab on grade over 4” of gravel per plans and specification S1. Include #3 rebar@ 16” o.c. e.w. Trowel finish.
Note: Price does not include new grade beam and shear wall on interior of house 9/S2. See alternative below.
Alternative #1
Interior Grade Beam and Shear Wall
• Excavate for new concrete grade beam 10” x 16” per plans and specifications 9/S2 and S1..
• Off haul spoils from site
• Dowel and epoxy into existing footing with dowels per plans and specifications.
• Install concrete reinforced interior grade beam per plans and specifications 9/S2 and S1
• Install new 3×4 PT sill per plans and specifications.
• Install new 2×4 framing at 16” o.c. per plans and specifications
• Install new 1/2 shear wall per plans and specifications
• Install L-30 clips @ 32” o.c. per plans and specificaitos to existing floor beam.
Qualifications and Clarifications
• Job is bid as package.
• Includes one mobilization only.
• Prices are subject to adequate supply of wood, steel, rock, concrete, and asphalt, PVC resins, PVC pipe, fittings at prices quoted at bid time and are good for 30 days.
• Proposal is based on working std 40 hours per week, 5 work days and mutually agreeable schedules.
• Progress payments every two weeks.
Exclusions
• Cost of plans, permits, bonds, testing and inspections.
• Any additional work due to utilities including buried pipes or irrigation pipes unless noted.
• Increased costs of excavation or drilling due to hard rock, caving or underground water. (Hard rock excavation is defined as material that requires the use of pneumatically or hydraulically operated hammers or rams to excavate.) (Hard rock drilling is defined as a penetration rate slower than 1 ft. in 5 minutes).
• Replacement of damaged landscaping, driveway or fence.
• Excavation and off hauling of hazardous materials, underground tanks, or materials unacceptable at dumps.
• Any work related to landscaping, fences or gates except as outlined
• Survey of property lines
• Landscaping or irrigation
• Demo of concrete in excess of 12 inches.
• Electrical or plumbing
• Excludes Gypsum
• Excludes Xypex sealer on existing slab.
• Excludes any windows or doors
• Excludes exterior siding or stucco.
• Excludes any damage including cracks, glass breakage and door frame alignment due to shoring.

 

RWR has done a lot of work in the Mill Valley area, including foundation repairs, retaining walls and drainage repairs. You may see our trucks and drilling equipment on East Blythedale, working their way up into the Mill Valley neighborhoods. The hilly Mill Valley area, at the foot of Mt Tamalpais gets a lot of rain and moisture, which can cause foundations to become unstable, and retaining walls to fail. It is important to correct these problems with well designed, well engineered plans, that are properly constructed. RWR specializes in this type of construction work in the Mill Valley area, and has great relationships with many engineers and architects working in this area. If you have a situation you’d like us to look at, please give us a call.

Here’s an example of foundation repair work we perform in the Mill Valley area. You can see this work requires skillful experienced foundation contractors and very competent crew. RWR brings you the expertise you need for your important project.

Scope of Work 

House Foundation Work
• Mobilize to jobsite + Supervision.
• In preparation for RWR’s scope of work installation, soft demolition, wooden deck to be disassembled for pier and grade beam installation plus any other preparation work needed for the foundation work installation must be completed prior to mobilization date.
• Provide selective hard demolition specifically and only for the installation of the new concrete work as shown on the revised drawings. Demolition or removal of buried concrete structures or hidden conditions are not included. Stockpile demolition debris at base of hillside per client’s request.
• Provide temporary structural shoring along the south-east section of the house for the installation/replacement of the new grade beam. Per 4/S1. Shoring scheme by RWR.
• Drill and install (3) 18” diameter x 18 ft. deep maximum + (3) 18” diameter x 21 ft. deep maximum reinforced concrete piers as per plans. Place spoils in dump trailer to be located on driveway. Client to off-haul from site.
• Excavate for and install new reinforced concrete grade beams, footings, stem walls per layout and structural details on sheet S1. Includes epoxy dowels to tie new to old foundations. All excavated spoils to be placed in dump trailer to be located on driveway. Client to remove spoils from site. Removal of spoils not included.
• Clean-up site and remove RWR related construction debris from site

Notes:
• Elevations and secured batter boards to be provided by General Contractor performing the remainder of the project.
• All excavated and drilling spoils to be deposited in clients dump trailer per owner’s request. Removal of spoils not included.

Note: This bid assumes RWR will be performing services as a Sub-contractor to a General Contractor. Bid assumes contract will utilize standard RWR contractual provisions. RWR reserves the right to accept or reject General Contractor’s contractual provisions.
Qualifications and Clarifications
• Job is bid as package unless agreement to otherwise
• Includes one mobilization only.
• Prices are subject to RWR obtaining adequate supply of rock, concrete, asphalt, PVC resins, PVC pipe, fittings at prices quoted at bid time and are good for 30 days.
• Proposal is based on working std 40 hours per week, 5 work days and mutually agreeable schedules.
• Progress payments every two weeks.

Exclusions
• Cost of plans, permits, bonds, testing and inspections.
• Any additional work as a result of utilities including buried pipes or irrigation pipes unless noted.
• Increased costs of excavation or drilling due to hard rock, caving or underground water. (Hard rock excavation is defined as material that requires the use of pneumatically or hydraulically operated hammers or rams to excavate). Hard rock drilling is defined as a penetration rate slower than 1 ft. in five minutes.
• Soft demolition or removal of related debris from site.
• Mass excavation, crawlspace excavation or any other than mentioned in our scope of work.
• Metal I-beams/metal work or any related not mentioned above.
• Provide or install of shrink/leveling grout.
• Earth shoring.
• House or any related drainage work.
• Excavation of hazardous materials, underground tanks, or materials unacceptable at dumps.
• Architectural concrete, color concrete or any type of special concrete finish product.
• Additional cost due to utility obstructions including any additional work on underground utilities or buried pipes.
• Supply of embedments other than foundation “J” bolts.

 

RWR has done a lot of work in the Mill Valley area, including foundation repairs, retaining walls and drainage repairs. You may see our trucks and drilling equipment on East Blythedale, working their way up into the Mill Valley neighborhoods. The hilly Mill Valley area, at the foot of Mt Tamalpais gets a lot of rain and moisture, which can cause foundations to become unstable, and retaining walls to fail. It is important to correct these problems with well designed, well engineered plans, that are properly constructed. RWR specializes in this type of construction work in the Mill Valley area, and has great relationships with many engineers and architects working in this area. If you have a situation you’d like us to look at, please give us a call.

Here’s an example of foundation repair work we perform in the Mill Valley area. You can see this work requires skillful experienced foundation contractors and very competent crew. RWR brings you the expertise you need for your important project.

This estimate is based on architectural drawings. The bid is for the excavation and installation of the new house foundation plus site drainage work.

Our price includes all labor and material to complete the work as per the itemized Scope of Work below.

Scope of Work
Bid Notes
• Elevations, secured batter boards and surveying to be provided by General Contractor performing the remainder of the project.
• Pier embedments for the house are calculated taking in consideration the pier boring layout provided on the soils report and the depth to rock shown on the boring logs. It is an approximate estimate and it is provided with the intentions of a more accurate pier depth total embedment.
• RWR assumes site will be cleared of existing house, concrete foundations, trees and others as per plans prior to mobilization to job site.
• Structural details take precedent over concrete figures shown on architectural details for this bid.

Qualifications and Clarifications
• Job is bid as package unless agreement to otherwise
• Includes one mobilization only.
• Prices are subject to adequate supply of rock, concrete, asphalt, PVC resins, PVC pipe, fittings at prices quoted at bid time and are good for 30 days.
• Proposal is based on working std 40 hours per week, 5 work days and mutually agreeable schedules.
• Progress payments every two weeks.

Note: This bid assumes RWR will be performing services as a Sub-contractor to a General Contractor. Bid assumes contract will utilize standard RWR contractual provisions. RWR reserves the right to accept or reject General Contractor’s contractual provisions.

Exclusions
• Cost of plans, permits, bonds, testing and inspections.
• Increased costs of excavation or drilling due to hard rock, caving or underground water. (Hard rock excavation is defined as material that requires the use of pneumatically or hydraulically operated hammers or rams to excavate). (Hard rock drilling is defined as a penetration rate slower than 1 ft. in 5 minutes).
• House or house foundation demolition, tree removal, grubbing and clearing, stump removal or any other demolition work not mentioned in our scope of work.
• Earth or structural shoring.
• Erosion control, site winterization or hydroseeding.
• Storm drain at street, TV camera, or any investigative or requested work related to it.
• Landscaping soil, staked timber wall, or other landscaping related finishes other than drainage work outlined on C1.0.
• Landscaping concrete work except for footings per details A/S1.4 & B/S7.
• Metal I-beams/metal work or any related not mentioned above.
• Provide or install of shrink/leveling grout.
• Any work on utilities including buried pipes.
• Waterproofing or drainage boards (to be provided by others).
• Any additional drainage work not mentioned in our scope of work.
• Excavation of hazardous materials, underground tanks, or materials unacceptable at dumps.
• Architectural concrete, color concrete or any type of special concrete finish product.
• Surveying and layout.
• Supply of embedments other than foundation “J” bolts.

 

Our estimator, Trevor, got a call to inspect a foundation problem, and came back with these images, as well as measurements and assessment of the entire situation of the home.  Moisture has been getting under this house, and has done a lot of damage.   The recommended repair will include diverting water away from the home, removing and replacing damaged foundation and mud sill, and of course, making sure the home is level.

IMG_20140509_102057415

Failing Foundation and Rotting Mud Sill and Rim Joist.

Need underpinning to permanently stabilize home or level floors in Berkeley? Call 415-457-5658 for a prompt, reliable estimate from our experienced estimator. RWR has been installing underpinning in Berkeley for over 24 years. You will see our trucks and equipment working in Berkeley, Berkeley Hills, and Kensington.

Here’s the kind of detailed estimate you can rely on, to correct foundation problems and perform structural work, including even zero lot line jobs that require our expertise:

This estimate is based on a site visit and structural drawings. The scope of work is for demo, excavation, installation of underpinning piers/haunches, installing dowels and grade beams and foundation drain. Included is an allowance for reinstalling the stair and deck. The price includes all labor and material to complete the work as per the itemized Scope of Work below.
Scope of Work

Mobilization and Layout
• Mobilize to jobsite with necessary equipment to complete job (See qualifications and clarifications)
• Layout underpinning piers per plans and specifications
• Daily Cleanup
• Final Cleanup

Demo and Shore Existing Structure
• Saw cut approximately 18 ft of driveway in front of garage and remove concrete from driveway across front of garage approximately 1 ft out. Where haunch is located remove approximately 2 ft x 2 ft. of additional concrete driveway.
• Demo and remove concrete stairs and deck as required
• Demo and remove concrete wall and pad on North side of house (Spa heater to be removed by others prior to demo of pad).
• Off haul debris from site
• Shore North side deck existing structure to allow for installation of new pier supports using RWR designed shoring method.

 

Excavation and Off Haul
• Excavate for underpinning haunches per plans and specifications (1/S1, 3/S1 and 4/S1).
• Excavate for installation of tie beam next to foundation per plans and specifications 2/S1.
• Off haul spoils from site.

Concrete Reinforced Piers
• Drill twelve (12) 18” diameter holes x 15 ft maximum with portable drilling equipment per plans and specifications S1. Final depths to be determined by soils engineer. See drilling condition exclusions.
• Install twelve (12) 18” diameter concrete reinforced piers x 15 ft per plans and specifications.
• Off haul pier spoils from site.

Haunches and Tie beams
• Install approximately 80 dowels using Hilti HY 150 two part adhesive anchor system per plans and specifications
• Install rebar and concrete into haunch excavation per plans and specifications 1/S1, 3/S1 and 4/S1.
• Install rebar and concrete into 1 ft x 1 ft tie beam excavation 1/S1, 2/S1, 3/S1 and 4/S1.

Backfill
• Backfill all exterior concrete work as required by plans and specifications.

Repair Stairs and Side Deck
• Using existing 4×4 posts reinstall existing posts using galvanized CBSQ44 brackets and attach posts per plans and specifications.
• Install new wooden stairway and deck to replace removed concrete stairs in front of house.
Does not include paint or paint labor. Price does not include rebuilding of structural stair support if necessary. Upon removal of concrete stairs engineer will approve structural integrity of stair and deck support. Stairs and deck are over living space. This will require installation of new waterproofing. RWR will engage a subcontractor to install waterproofing prior to installation of new wooden stairs. Price does not include this additional cost of waterproofing or any type of flashing that may be required.

Drainage
• Trench approximately 50 linear ft in crawl space of house to install foundation drain per plans and specifications.
• Install approximately 50 linear ft of perforated SDR 35 pipe with cleanouts as necessary along foundation per plans and specifications 6/S1.
• Trench is to be a minimum of 12 in wide x 12 in below crawl space grades
• Trench will be lined with filter fabric and filled with ¾ in drain rock.
• Include a tight line to surface drain drop inlet and exit to outside.
• Discharge perforated pipe to tight pipe on the exterior into existing drainage outlet per plans and specifications.
Alternative #1
• In lieu of demo concrete stairs and replacing with wood stairs the pier located under the stair way would be relocated to the exterior of the house (This has been approved by the engineer).
• The haunch for detail 4/S1 would be redesigned with larger rebar (subject to calculation and detail provided by engineer).
• Excavation would occur in interior of home. Demo sheetrock in closet for access under stairway.
• Excavate haunch per plans and specifications with spoils removed through downstairs window.
• Repair sheetrock as required (does not include paint).
(Note: Price difference is greater than shown as waterproofing will not be required with alternative)

 

Qualifications and Clarifications
• Job is bid as package unless agreement to otherwise
• Includes one mobilization only
• Prices are subject to RWR obtaining adequate supply of wood, steel, rock, concrete, asphalt, PVC resins, PVC pipe, fittings at prices quoted at bid time and are good for 30 days.
• Proposal is based on working std 40 hours per week, 5 work days and mutually agreeable schedules.
• RWR is not responsible for survey lines. Survey of property lines must be done by licensed surveyor.
• Progress payments every two weeks.
• Estimate does not include replacement of landscaping. RWR will remove landscape material as directed by homeowner for future replacement by others.

 
Exclusions
• Cost of plans, permits, bonds, testing and inspections.
• Increased cost of drilling or excavation due to hard rock, underground water or caving soils. (Hard rock drilling is defined as a penetration rate slower than 1 ft. in 5 minutes.) (Hard rock excavation is defined as material that cannot be excavated with a conventional backhoe or excavator bucket.)
• Any additional work required as a result of utilities including buried pipes or irrigation pipes.
• Replacement of damaged landscaping, driveway or fence.
• Excavation and off hauling of hazardous materials, underground tanks, or materials unacceptable at dumps.
• Any work related to landscaping, fences or gates except as outlined
• Additional drainage not specifically outlined in this proposal.
• Earth shoring
• Winterization erosion control items (to be completed on a Time and Material basis if required)
• Electrical or Plumbing except as outlined in this proposal
• Backfill or Compaction of any soils not outlined in this proposal.
• Importation of backfill material except as noted.
• Survey of property lines
• Landscaping or irrigation

 

 

 

Need underpinning to permanently stabilize home or level floors? Call 415-457-5658 for a prompt, reliable estimate from our experienced estimator. RWR has been installing underpinning in San Francisco for over 24 years. You will see our trucks and equipment working in San Francisco neighborhoods like the Marina, Pacific Heights, Nob Hill, Western Addition, Haight, Castro, Noe Valley, Twin Peaks and so on.

Here’s the kind of detailed estimate you can rely on, to correct foundation problems and perform structural work, including even zero lot line jobs that require our expertise:

This estimate is based on a site visit and structural drawings. The scope of work is for demo, excavation, installation of underpinning piers/haunches, installing dowels and grade beams and foundation drain. Included is an allowance for reinstalling the stair and deck. The price includes all labor and material to complete the work as per the itemized Scope of Work below.
Scope of Work

Mobilization and Layout
• Mobilize to jobsite with necessary equipment to complete job (See qualifications and clarifications)
• Layout underpinning piers per plans and specifications
• Daily Cleanup
• Final Cleanup

Demo and Shore Existing Structure
• Saw cut approximately 18 ft of driveway in front of garage and remove concrete from driveway across front of garage approximately 1 ft out. Where haunch is located remove approximately 2 ft x 2 ft. of additional concrete driveway.
• Demo and remove concrete stairs and deck as required
• Demo and remove concrete wall and pad on North side of house (Spa heater to be removed by others prior to demo of pad).
• Off haul debris from site
• Shore North side deck existing structure to allow for installation of new pier supports using RWR designed shoring method.

 

Excavation and Off Haul
• Excavate for underpinning haunches per plans and specifications (1/S1, 3/S1 and 4/S1).
• Excavate for installation of tie beam next to foundation per plans and specifications 2/S1.
• Off haul spoils from site.

Concrete Reinforced Piers
• Drill twelve (12) 18” diameter holes x 15 ft maximum with portable drilling equipment per plans and specifications S1. Final depths to be determined by soils engineer. See drilling condition exclusions.
• Install twelve (12) 18” diameter concrete reinforced piers x 15 ft per plans and specifications.
• Off haul pier spoils from site.

Haunches and Tie beams
• Install approximately 80 dowels using Hilti HY 150 two part adhesive anchor system per plans and specifications
• Install rebar and concrete into haunch excavation per plans and specifications 1/S1, 3/S1 and 4/S1.
• Install rebar and concrete into 1 ft x 1 ft tie beam excavation 1/S1, 2/S1, 3/S1 and 4/S1.

Backfill
• Backfill all exterior concrete work as required by plans and specifications.

Repair Stairs and Side Deck
• Using existing 4×4 posts reinstall existing posts using galvanized CBSQ44 brackets and attach posts per plans and specifications.
• Install new wooden stairway and deck to replace removed concrete stairs in front of house.
Does not include paint or paint labor. Price does not include rebuilding of structural stair support if necessary. Upon removal of concrete stairs engineer will approve structural integrity of stair and deck support. Stairs and deck are over living space. This will require installation of new waterproofing. RWR will engage a subcontractor to install waterproofing prior to installation of new wooden stairs. Price does not include this additional cost of waterproofing or any type of flashing that may be required.

Drainage
• Trench approximately 50 linear ft in crawl space of house to install foundation drain per plans and specifications.
• Install approximately 50 linear ft of perforated SDR 35 pipe with cleanouts as necessary along foundation per plans and specifications 6/S1.
• Trench is to be a minimum of 12 in wide x 12 in below crawl space grades
• Trench will be lined with filter fabric and filled with ¾ in drain rock.
• Include a tight line to surface drain drop inlet and exit to outside.
• Discharge perforated pipe to tight pipe on the exterior into existing drainage outlet per plans and specifications.
Alternative #1
• In lieu of demo concrete stairs and replacing with wood stairs the pier located under the stair way would be relocated to the exterior of the house (This has been approved by the engineer).
• The haunch for detail 4/S1 would be redesigned with larger rebar (subject to calculation and detail provided by engineer).
• Excavation would occur in interior of home. Demo sheetrock in closet for access under stairway.
• Excavate haunch per plans and specifications with spoils removed through downstairs window.
• Repair sheetrock as required (does not include paint).
(Note: Price difference is greater than shown as waterproofing will not be required with alternative)

 

Qualifications and Clarifications
• Job is bid as package unless agreement to otherwise
• Includes one mobilization only
• Prices are subject to RWR obtaining adequate supply of wood, steel, rock, concrete, asphalt, PVC resins, PVC pipe, fittings at prices quoted at bid time and are good for 30 days.
• Proposal is based on working std 40 hours per week, 5 work days and mutually agreeable schedules.
• RWR is not responsible for survey lines. Survey of property lines must be done by licensed surveyor.
• Progress payments every two weeks.
• Estimate does not include replacement of landscaping. RWR will remove landscape material as directed by homeowner for future replacement by others.

 
Exclusions
• Cost of plans, permits, bonds, testing and inspections.
• Increased cost of drilling or excavation due to hard rock, underground water or caving soils. (Hard rock drilling is defined as a penetration rate slower than 1 ft. in 5 minutes.) (Hard rock excavation is defined as material that cannot be excavated with a conventional backhoe or excavator bucket.)
• Any additional work required as a result of utilities including buried pipes or irrigation pipes.
• Replacement of damaged landscaping, driveway or fence.
• Excavation and off hauling of hazardous materials, underground tanks, or materials unacceptable at dumps.
• Any work related to landscaping, fences or gates except as outlined
• Additional drainage not specifically outlined in this proposal.
• Earth shoring
• Winterization erosion control items (to be completed on a Time and Material basis if required)
• Electrical or Plumbing except as outlined in this proposal
• Backfill or Compaction of any soils not outlined in this proposal.
• Importation of backfill material except as noted.
• Survey of property lines
• Landscaping or irrigation

 

 

 

Underpinning is the extension of the existing foundation down to competent bearing material, which is material that will support the weight of the house and foundation without settling. Techniques include installing reinforced concrete piers, driven steel piles or push piles, hand-dug pits, helical anchors or self-drilling anchors.
Underpinning helps stabilize the foundation, and is often necessary as first step to a major home remodel.

Underpinning is often an excellent solution to level floors, stop the foundation from moving, lift the home close to it’s orginal position, and greatly increase the value of your home.

RWR uses portable equipment during installation, with minimal disruption to your home and surrounding area.

Schedule a free inspection with one of our professional consultants, and get our recommendations for your situation.

Here is an example estimate from RWR, so you can get an idea of the detail and professionalism you can expect from our team of specialists.

This estimate is based on a site visit and structural drawings. The scope of work is for demo, excavation, installation of underpinning piers/haunches, installing dowels and grade beams and foundation drain. Included is an allowance for reinstalling the stair and deck. The price includes all labor and material to complete the work as per the itemized Scope of Work below.
Scope of Work

Mobilization and Layout
• Mobilize to jobsite with necessary equipment to complete job (See qualifications and clarifications)
• Layout underpinning piers per plans and specifications
• Daily Cleanup
• Final Cleanup

Demo and Shore Existing Structure
• Saw cut approximately 18 ft of driveway in front of garage and remove concrete from driveway across front of garage approximately 1 ft out. Where haunch is located remove approximately 2 ft x 2 ft. of additional concrete driveway.
• Demo and remove concrete stairs and deck as required
• Demo and remove concrete wall and pad on North side of house (Spa heater to be removed by others prior to demo of pad).
• Off haul debris from site
• Shore North side deck existing structure to allow for installation of new pier supports using RWR designed shoring method.

 

Excavation and Off Haul
• Excavate for underpinning haunches per plans and specifications (1/S1, 3/S1 and 4/S1).
• Excavate for installation of tie beam next to foundation per plans and specifications 2/S1.
• Off haul spoils from site.

Concrete Reinforced Piers
• Drill twelve (12) 18” diameter holes x 15 ft maximum with portable drilling equipment per plans and specifications S1. Final depths to be determined by soils engineer. See drilling condition exclusions.
• Install twelve (12) 18” diameter concrete reinforced piers x 15 ft per plans and specifications.
• Off haul pier spoils from site.

Haunches and Tie beams
• Install approximately 80 dowels using Hilti HY 150 two part adhesive anchor system per plans and specifications
• Install rebar and concrete into haunch excavation per plans and specifications 1/S1, 3/S1 and 4/S1.
• Install rebar and concrete into 1 ft x 1 ft tie beam excavation 1/S1, 2/S1, 3/S1 and 4/S1.

Backfill
• Backfill all exterior concrete work as required by plans and specifications.

Repair Stairs and Side Deck
• Using existing 4×4 posts reinstall existing posts using galvanized CBSQ44 brackets and attach posts per plans and specifications.
• Install new wooden stairway and deck to replace removed concrete stairs in front of house.
Does not include paint or paint labor. Price does not include rebuilding of structural stair support if necessary. Upon removal of concrete stairs engineer will approve structural integrity of stair and deck support. Stairs and deck are over living space. This will require installation of new waterproofing. RWR will engage a subcontractor to install waterproofing prior to installation of new wooden stairs. Price does not include this additional cost of waterproofing or any type of flashing that may be required.

Drainage
• Trench approximately 50 linear ft in crawl space of house to install foundation drain per plans and specifications.
• Install approximately 50 linear ft of perforated SDR 35 pipe with cleanouts as necessary along foundation per plans and specifications 6/S1.
• Trench is to be a minimum of 12 in wide x 12 in below crawl space grades
• Trench will be lined with filter fabric and filled with ¾ in drain rock.
• Include a tight line to surface drain drop inlet and exit to outside.
• Discharge perforated pipe to tight pipe on the exterior into existing drainage outlet per plans and specifications.
Alternative #1
• In lieu of demo concrete stairs and replacing with wood stairs the pier located under the stair way would be relocated to the exterior of the house (This has been approved by the engineer).
• The haunch for detail 4/S1 would be redesigned with larger rebar (subject to calculation and detail provided by engineer).
• Excavation would occur in interior of home. Demo sheetrock in closet for access under stairway.
• Excavate haunch per plans and specifications with spoils removed through downstairs window.
• Repair sheetrock as required (does not include paint).
(Note: Price difference is greater than shown as waterproofing will not be required with alternative)

 

Qualifications and Clarifications
• Job is bid as package unless agreement to otherwise
• Includes one mobilization only
• Prices are subject to RWR obtaining adequate supply of wood, steel, rock, concrete, asphalt, PVC resins, PVC pipe, fittings at prices quoted at bid time and are good for 30 days.
• Proposal is based on working std 40 hours per week, 5 work days and mutually agreeable schedules.
• RWR is not responsible for survey lines. Survey of property lines must be done by licensed surveyor.
• Progress payments every two weeks.
• Estimate does not include replacement of landscaping. RWR will remove landscape material as directed by homeowner for future replacement by others.

 
Exclusions
• Cost of plans, permits, bonds, testing and inspections.
• Increased cost of drilling or excavation due to hard rock, underground water or caving soils. (Hard rock drilling is defined as a penetration rate slower than 1 ft. in 5 minutes.) (Hard rock excavation is defined as material that cannot be excavated with a conventional backhoe or excavator bucket.)
• Any additional work required as a result of utilities including buried pipes or irrigation pipes.
• Replacement of damaged landscaping, driveway or fence.
• Excavation and off hauling of hazardous materials, underground tanks, or materials unacceptable at dumps.
• Any work related to landscaping, fences or gates except as outlined
• Additional drainage not specifically outlined in this proposal.
• Earth shoring
• Winterization erosion control items (to be completed on a Time and Material basis if required)
• Electrical or Plumbing except as outlined in this proposal
• Backfill or Compaction of any soils not outlined in this proposal.
• Importation of backfill material except as noted.
• Survey of property lines
• Landscaping or irrigation

 

 

 

Need underpinning to permanently stabilize home or level floors in Berkeley? Call 415-457-5658 for a prompt, reliable estimate from our experienced estimator. RWR has been installing underpinning in Berkeley for over 24 years. You will see our trucks and equipment working in Berkeley, Berkeley Hills, and Kensington.

Here’s the kind of detailed estimate you can rely on, to correct foundation problems and perform structural work, including even zero lot line jobs that require our expertise:

This estimate is based on structural. The bid is for the installation of drilled cast-in-place reinforced concrete piers and grade beams to stabilize the eastern side of the house as per plans.

Our price includes all labor and material to complete the job as per the itemized Scope of Work below.

Scope of Work
• Mobilize to site.
• Install a temporary wooden earth and debris catch/retention wall along the East down hill side of the property to avoid damage to neighbors property. Remove from site when job is completed.
• Demolish and remove from site the existing failing walkways and entry stair.
• Remove, set aside and re-install rear deck boards as necessary for the installation of the concrete piers and grade beam.
• Remove existing landscaping rocks and other small obstructions in the way for the installation of the piers.
• Drill and install (2) 18” diameter x 19 ft. deep maximum and (6) 18” diameter x 18 ft deep maximum reinforced concrete piers along eastern side of house and part way up both sides of house as per plan layout. Off-haul drilling spoils from site.
• Excavate for and install (8) 2 ft. wide x 2 ft. deep x various lengths (as per plans) reinforced concrete pier caps connected to the top of the piers and either butted up against or doweled to the existing house foundation as per plans.
• At piers 3, 4, 5 & 6 install 8” thick perimeter reinforced concrete retention/edge wall as shown on drawings. As well as the tie beam at the wooden deck side as per detail 5/S2. Includes epoxy dowels as per plans.
• Install approx. 322 square ft of new 6” thick slab on grade as on top of the structural work creating a new walkway and front step as per plans.
• Backfill and re-compact as needed for the slab on grade installation.
• Install drainage lines as per plans. Includes (3) 6” square NDS area drains, pick up (2) downspouts and outlet via buried SDR-35 solid line to the street as per plans.
• Clean up site and remove RWR’s related construction debris.

Notes
• If the bond is eliminated (such bonds are usually used for public work jobs) reduce price by 3% of the final price. Invoices the client after work is completed and does not require any sub contractors to perform this job, therefore the client is always ahead based on the work performed.

Alternate # 1
• Install basic erosion control (e.g. straw wattle, silt fence) along eastern side of the property. As per City requirements.

Qualifications and Clarifications
• Job is bid as package unless agreement to otherwise
• Includes one mobilization only.
• Prices are subject to obtaining adequate supply of rock, concrete, asphalt, PVC resins, PVC pipe, fittings at prices quoted at bid time and are good for 30 days.
• Proposal is based on working std 40 hours per week, 5 work days and mutually agreeable schedules.
• Standard home improvement contract including all provisions and exhibits.
• Site winterization. (see erosion control included above)
• Progress payments every two weeks.

Exclusions
• Cost of plans, permits, testing and inspections.
• Increased costs of excavation or drilling due to hard rock, underground water or caving. (Hard rock drilling is defined as a penetration rate slower than 1ft. in 5 minutes). (Hard rock excavation is defined as material that requires the use of a pneumatic or hydraulic breaker to excavate).
• Any work on utilities including buried pipes.
• Removal of spoils from site not mentioned above.
• Structural/earth shoring.
• Repair to landscaping or irrigation.
• Excavation of hazardous materials, underground tanks, or materials unacceptable at dumps.