RWR has done a lot of work in the Mill Valley area, including foundation repairs, retaining walls and drainage repairs. 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 and structural drawings. The bid is for the installation of a new reinforced concrete foundation as per plans plus house sub-drainage work except CONC-1 and CONC-2 slabs.

Scope of Work
House Foundation per S-2.0 & S2.1
• Mobilize to jobsite + Supervision.
• After garage structural shoring is installed (by others), demolish and remove from site existing garage concrete foundation plus existing hardscape elements (see earth shoring additional cost provided below) specifically for the installation of the new reinforced concrete work as per current drawings including drainage rock pockets behind the new garage wall (see alternate for garage board formed walls + alternate for garage shotcrete installation). Off haul demolition debris from site. All soft demolition to be performed by others.
• Excavate for and install new reinforced concrete grade beams, footings, CMU walls and rough concrete stairs per layout and structural details on sheet S-2.0 & S-2.1. Off-haul related spoils from site.
• Includes the installation of Paraseal waterproofing membranes and Miradrain 6000 drainage membranes for all new foundation sub-drainage systems as called on structural drawings for the garage structure and the CMU walls. Outlet to one side of the new garage.
• Clean-up site and remove RWR related construction debris from site
Base bid Broken-down prices provided for illustrative purposes.
• Supervision & Mobilization
• Hard demo & Of-haul
• Excavations & Off-haul
• Concrete foundations & CMU Walls
• WP & Drainage + Backfill and re-compaction
Add-on cost/Earth Shoring
• Preliminary cost for earth shoring installation using metal I-beams & wood lagging along the north and east sides of the existing garage structure. Engineering not included.

Notes:
• Elevations and secured batter boards to be provided by General Contractor performing the remainder of the project.
• Native soils are assumed acceptable to be used for backfill and re-compaction where needed. Import for re-compaction materials (if needed) is not included in this estimate.
• Drainage and waterproofing membranes are based on Paraseal and Miradrain 6000
• CONC-1 & CONC-2 is not included. No architectural concrete is 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.
• Metal I-beams/metal work or any related not mentioned above.
• Provide or install of shrink/leveling grout.
• Earth/Structural shoring (see additional cost provided).
• House drainage work (other than foundation sub-drainage work).
• Excavation of hazardous materials, underground tanks, or materials unacceptable at dumps.
• CONC-1 & CONC-2 slabs/topping slabs/architectural finishes.
• 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.