Need drainage or waterproofing done?

Call 415-457-5658 for a prompt, reliable estimate from our experienced estimator. RWR has been doing waterproofing and fixing drainage problems to create dry crawl spaces and dry foundations 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 revised estimate is based on revised plans. The bid consists of installing a new reinforced concrete section of house foundation on helical piers plus installing isolated helical pier/caps with helical tiebacks as per revised drawings.

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

Scope of Work
Wall Foundation Reinforcement
• Mobilize to jobsite. Demobilize.
• Supervision. Perform weekly cleanup.
• Temporarily support the existing corner of the building where the existing foundation needs to be replaced on shoring towers for the replacement of the existing foundation, saw-cut and demolish the portion of the existing concrete foundation as shown on drawings. Remove demolished foundation debris from site.
• For the (2) isolated vertical piers below the new concrete foundation, install a total of (2) 17 ft. deep Foundation-SupportWorks HP-287 helical piers. Helical piers include (1) 7 ft. 8”–10” galvanized lead helix plate configuration with 3/8-inch thick grade 50 steel standard helix plate configuration plus (2) 5 ft. galvanized extensions and (1) galvanized HP288NCBA-G bracket assembly each. Test measuring installation torqueing rates as per plans. Other type of field testing (pull testing or compression testing) is not included. See additional cost provided below.
• For the (8) vertical piers (against the foundation) where the vertical pier interacts with the horizontal helical tieback, at each location install a total of (8) 17 ft. deep Foundation-SupportWorks HP-287 helical piers. Helical piers include (1) 7 ft. 8”–10” galvanized lead helix plate configuration with 3/8-inch thick grade 50 steel standard helix plate configuration plus (2) 5 ft. galvanized extensions and (1) galvanized FS288BLRA-G bracket assembly at each vertical helical pier/helical tieback location. For the tieback interaction at each of the (8) vertical helical pier locations, install a total of (8) 35 ft. long Foundation-SupportWorks HA-150 helical tieback. Helical tiebacks include (1) 7 ft. 10”–12”-14” galvanized lead helix plate configuration with 3/8-inch thick grade 50 steel standard helix plate configuration plus (4) 7 ft. galvanized extensions each. Attach bracket assembly to house foundation per vertical/lateral bracket assembly configuration at (8) locations via epoxy doweled bolts encapsulated in concrete at each location.
• Excavate for and install (7) reinforced concrete haunches/helical pier caps at each of the (7) pier location as shown on drawings. All generated spoils to be spread on site (rear yard per client’s instructions).
• Excavate for and install a new reinforced concrete grade beam over (3) new piers as per plans. Includes the installation of (3) new HDG-CBSQ 66’s as per plans.
• Clean-up and remove construction debris from site.

Notes:
• Additional footage for helical pier depths
• Pull testing or compression testing of helical piers is not included in the main estimate (base bid) and the amount of the helical piers that can be tested will depend on requirements by the project’s engineer. If pull testing or compression testing are required, testing will be performed on a time and material basis.
• For re-calibration of the testing jack (If required by engineer).
Testing Note: Installation will be made using torque conversion charts as an equivalent to pull test operations. The conversion charts produce installation torque conversion ratings equal to achieved final torque capacities. Proposed Helical pier is based on final installation torque of 34,000 ft-lb = 1200 psi (conversion charts attached) capacity.

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.
• Standard drilling conditions.
• Progress payments every two weeks.

Exclusions
• Cost of plans, permits, bonds, testing and inspections.
• Increased costs of excavation or drilling due to hard rock, tree roots, caving conditions, 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.)
• Tree work, tree service or any additional work generated by existing trees of tree roots.
• Increased cost of helical installation due to rubble, boulders, fill or any unknown underground obstruction.
• Demolition hard or soft other than necessary for temporary structural shoring installation.
• Any work on utilities including buried pipes.
• Soil grouting, soil injection or permeation.
• Framing work or carpentry work or replacement of existing framing not mentioned in our scope of work.
• Structural/earth shoring, house re-leveling (unless mentioned in our scope of work).
• Removal of generated spoils from site.
• Waterproofing and drainage.
• Erosion control.
• Winterization.
• Excavation of hazardous materials, underground tanks, or materials unacceptable at dumps.
• Architectural concrete or type of special concrete finish product.
• Chimney underpinning or work related to it.