Foundation Installation in San Francisco, CA.

New foundation installation for San Francisco homes and ADUs. Engineered drawings, DBI permits, formwork, pour, and back-fill handled in-house, built for the soil conditions and seismic requirements specific to San Francisco lots.

Request walk-through Call (415) 218-9270
Licensed CSLB Licensed & Insured
Serving San Francisco & Peninsula
Reviews 5.0 Stars on Google
On every job Michael Behan, On-site
Our approach

Built for SF soil. Built to code.

San Francisco's soil mix, bay mud, sandy fill, hillside grades, means a foundation that works fine in another city can be the wrong call here. Every new foundation we install starts with the right engineering for the lot, not a one-size-fits-all spec.

We coordinate the structural drawings, pull DBI permits, handle formwork and pour, and complete the project through final city inspection. Michael runs every job on-site through the full build.

What's included

The work, spelled out.

Every foundation installation project we take on in San Francisco includes the following. Anything outside this scope is called out in the written bid before work starts.

01

Engineered drawings

We coordinate structural engineering for new foundations, stamped drawings sized to your lot's soil and seismic requirements.

02

SF DBI permits

We pull every permit your new foundation needs from San Francisco Department of Building Inspection.

03

Excavation & prep

Site excavation, grading, formwork, and reinforcement prep handled by our crew. No subcontracted handoffs.

04

Concrete pour

Mix-design and pour scheduled around weather and inspection windows. Properly vibrated and cured.

05

Anchor bolting & connections

Anchor bolts, hold-downs, and structural connections set to plan so the framing above ties cleanly to the new foundation.

06

Final inspection

We walk the work with you, pass the city's final inspection, and stand behind it.

Behan Builders crew member during structural work on new foundation installation in San Francisco
What this looks like

What new foundation work typically involves.

Most foundation installs in San Francisco mean either a new ADU or addition, or a full underpinning where an unstable foundation needs to be replaced. Engineered drawings, DBI permits, formwork, pour, and back-fill all coordinated by one on-site contractor.

Discuss your project
Get started

Ready to talk about your foundation installation project?

Send a few details and Michael will reach out to schedule an on-site walk-through. Or call us directly at (415) 218-9270.

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