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 architectural drawings, structural drawings and landscaping drawings. The bid consists of installing selective structural concrete work as shown on revised plans plus selective miscellaneous drainage, hard demolition and excavation work.

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

Scope of Work
Selective Concrete Work + Miscelaneous
• Mobilize to jobsite. Demobilize. Supervision.
• 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 as well as underpinning of existing structures. Includes demolition and removal of brick patio as well as extracting the planters existing soil for waterproofing installation (by others).
• Excavate for and install (3) AD’s per sheet L2.0 and connect to existing outlet per note #4.
• For the north side yard of the house, excavate for and install new reinforced concrete grade beams as indicated on layout A & D of S2.1 as well as (1) new reinforced concrete pad for the heat pumps as shown on A2.1 (entry landing not included). Includes epoxy dowels to attach new to existing foundations where applicable.
• Clean-up site and remove all construction debris and excess soils.

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.
• Elevations and layout to be provided by General Contractor performing the remainder of the project.
Exclusions
• Cost of plans, permits, shop drawings, 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.)
• Any work on utilities including buried pipes.
• Waterproofing or drainage work other than mentioned in our scope of work.
• Soft demolition or any demolition not related to concrete installation scope of work mentioned above.
• Stone removal, concrete work not obstructing the installation of the new concrete work.
• Tree work, protection etc
• Erosion control.
• Underpinning, structural or earth shoring.
• Winterization.
• Excavation of hazardous materials, underground tanks, or materials unacceptable at dumps.
• Architectural concrete or type of special concrete finish product.
• Surveying and Layout.