Top-rated foundation repair specialists.

Best foundation repair specialists near Mill Valley, CA

Enter your zip and get matched with up to 5 pros

Need a pro for your foundation repair project in Mill Valley, CA?

Select your specific project to find the pro for you.

TRUSTED BY MILL VALLEY, CA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon16
    Verified foundation repairs reviews

Top-Rated Foundation repair specialists in Mill Valley - Updated Nov 2026

Avatar for Groundworks
Groundworks
4.6(
19
)
Concrete Foundation - RaiseConcrete Foundation - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation+1 more

Serving Mill Valley, CA and surrounding areas

Approved (Corporate)

In business since 2023

Free estimates

Warranties offered

"Within a few months of buying our first home, we noticed some troubling signs: bedroom doors swinging open or closed on their own, “bubbles” and creaks in sections of the newly renovated floors, and significant cracks splitting the concrete in our garage. Although two general inspectors assured us that our house was level, we reached out to Bay Area Underpinning (BAU) for a more detailed assessment—and we're so glad we did! Inspector Christopher Murray conducted a meticulous inspection with radar equipment. While technically our house was level, Christopher uncovered that our foundation was sinking by inches in multiple areas, explaining the issues we were experiencing. Though the news and associated repair cost were a bit daunting as new homeowners, Christopher’s knowledge, professionalism, and clear answers to all our questions reassured us that we were in good hands. With confidence, we decided to proceed with BAU for the repair. Fredy Mora and his crew did exceptional work with the demo of the old concrete slabs and the prep for lifting, working quickly and efficiently. Fredy’s positive attitude made the process smooth, and his team was thorough and dedicated from start to finish. A special thank you to our lift project manager, Kevin Gaeden. Kevin was an outstanding communicator, keeping us fully informed and addressing every question promptly. His attentiveness made a huge difference throughout the project, and we felt reassured every step of the way. Esteban Ibarra, a crewmember on the lift team, also did superb work, handling the hands-on details with skill and care. Both Kevin and Esteban even went above and beyond, taking time to fix a jammed bedroom door that had shifted with the house lift. While foundation issues are never easy, we couldn’t have asked for a better team. We’re incredibly grateful to Bay Area Underpinning for their expertise, professionalism, and exceptional service. Thank you, BAU!"
Basement
Basement
Basement
Basement
Foundation

+16

168 neighbors recently requested a quote
Recommended by58%of homeowners
Avatar for Geico Builders
Geico Builders
5.0(
62
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Mill Valley, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2013

Free estimates

Warranties offered

"Geico Builders and Brian did a fantastic job. He helped us in demolishing a front deck and replacing it with concrete, relocating a tree from the backyard to the front area and assisting with other odds and ends around the house like fixing the lock on the front window, fixing the latch on the entry fence, etc. Geico Builders were professional, courteous, efficient and did great work. Highly recommended."
Composite Deck Replacement Trex
Full Backyard Remodel with Outdoor Kitchen
Remodeling - Kitchen & Bathroom Project
Deck Replacement Composit
Composite Deck

+270

Response time1 day
Response rate100%
8 neighbors recently requested a quote
Avatar for I Construction and Structural, Inc.
I Construction and Structural, Inc.
4.6(
28
)
Concrete Foundation - Repair

Serving Mill Valley, CA and surrounding areas

Approved

In business since 1993

Free estimates

Small jobs welcome

"I hired Danny to replace four bedroom windows that had been leaking when it rained. From the moment he inspected the windows until the day he finished the project, he displayed professionalism, expertise, and efficiency. He not only made sure the job was done but also made sure it was done right. I appreciated his attention to detail and explanations of what happened, why it happened, and what repairs needed to happen. Danny also respected my home and made sure to always clean and tidy the debris that had been made during the construction. I enjoyed working with Danny and would recommend him to anyone who needs home repairs or improvement."
Car Deck
Car Deck
Car Deck
Car Deck
Car Deck

+70

Recommended by95%of homeowners
SGB Inc.
5.0(
6
)
Foundation Drainage - Install or Replace

Serving Mill Valley, CA and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

"The team was amazing! We had an old deck in our backyard and we hired Palm Construction to replace and extend it and they did a great work! The job was done in less than 2 weeks, Communication was great, they cared about the backyard and plants and we are so happy itâ s all ready just before summer. Highly recommended!!"
Response time2 days
Response rate86%
Recommended by100%of homeowners
Avatar for Cortez Bros Concrete Construction Inc
Cortez Bros Concrete Construction Inc
4.6(
29
)
Concrete Foundation - RepairPoured Concrete Wall - Repair

Serving Mill Valley, CA and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Excellent service by Cortez Bros. They came and repaired a slope issue and fix my patio. Created new trench, and finish the whole thing just the way I wanted. Highly recommend their service."
Driveway
Bocce ball court and patio
Ashlar cut slate
Stamp patterns
Stamp patterns

+63

Response time2 days
4 neighbors recently requested a quote
Recommended by100%of homeowners
...
Showing 1-10 of 130
Foundation Repair FAQs, answered by experts

Concrete spalling can be fairly serious, especially if left untreated or in a public area. It can be a tripping hazard and, if not resolved, can lead to structural instability.

If improperly installed, an egress window can compromise your foundation’s structural integrity, so it’s important to work with a pro to ensure your foundation remains in good shape. Any money you may save on a DIY egress window installation may cost you in the long run if your foundation is damaged in the process.

A slab-on-grade or slab foundation is a great option in many areas—usually in warm or moderate climates—and has been a successful foundation style for many decades. Slab foundations don’t require excavation or concrete block wall construction, so they’re the least expensive foundation type. They’re also the fastest to construct and don’t have many issues with moisture or water intrusion. However, they don’t give you extra storage space or potential living space like a crawl space or basement would, and they’re not ideal in colder areas where utility lines can freeze and frost heave can cause major damage.

Barring extreme home foundation problems, most horizontal foundation cracks are fixable using one or more methods. Most of the repair methods require professional expertise to accomplish, and include plate anchors, steel reinforcement, soil anchors, reconstruction, or carbon fiber strip applications. Contacting a professional to diagnose the problem early can minimize repair expenses.

Foundation settling is normal and expected if just a small amount of settlement occurs within a year or so after construction. This usually results in hairline cracks in the foundation, which aren’t typically a problem. If settlement occurs years after construction, unevenly under your home, or results in signs of structural damage, then it could be very serious. Foundation stabilization and drainage system installation to fix unnatural settlement can cost tens of thousands of dollars and compromise the structural integrity of your entire home.

The Mill Valley, CA homeowners’ guide to foundation repairs

From average costs to expert advice, get all the answers you need to get your job done.