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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

"First of all let me start saying that Mila and Crew are awesome people you can trust/rely on. We had an existing rotten staircase with so many cracks . They removed and replaced with red wood materials . They asked for the requirements and were very good and fast in understanding what we wanted. Their work was perfect. They not only completed it in the scheduled time but also did a great clean up after the job. I asked them to seal the railing and they did together with the sanding including which was not in the initial scoop of work. Overall Mila and her crew did fantastic work and communication with in project was very clear. We highly recommend. They are very clear, patient, hardworking, friendly and accommodating. What else anyone would need? Thanks so much Mila and Geico Builders. I have already started letting everyone know about your work in my neighborhood."
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

"We found this company through Home Advisors when we needed extensive repair work on our very large front deck that included removal of several layers of the old Deck 70 coating and decayed plywood, rebuilding the substructure, and eventually applying a waterproof membrane over it before installing a new topcoat. To do this, portions of the stuccoed facade of our house and the deck railing had to be removed to make room for new flashing all around. After we came to an agreement with Dan Betyordekom of I Construction to do the work, we braced ourselves for the disruptions and turmoil such a project typically inflicts on an active household (this was not our first such rodeo), dreading the inevitable delays that seem to be part of any construction work. Today, merely 10 days after we signed the contract, we look out on our splendid new deck, which, even according to the building inspector, reflects excellent work. Don's tireless crew showed up on time every day, worked meticulously and professionally, took no shortcuts, cleaned up thoroughly at the end of each day, and went beyond our expectations in every aspect. When they replaced the portions of the stucco and deck railing they had removed, they didn't just paint the replaced portions-they painted the whole house wall and railing... Throughout the work, Dan was in constant contact with us to ensure that our normal routines were not affected by the work, and even made sure that the deck would be finished and usable for a baby shower we had scheduled for our son and his expecting wife. The deck was finished in time, and the party was a blast!"
Car Deck
Car Deck
Car Deck
Car Deck
Car Deck

+70

Recommended by95%of homeowners
Avatar for McCormick Home Builders, Inc.
McCormick Home Builders, Inc.
4.7(
42
)
Concrete Foundation - RaiseConcrete Foundation - Repair

Serving Mill Valley, CA and surrounding areas

Approved

In business since 2017

Free estimates

Customers say: True professional

"After dealing with frequent roof repairs, we finally decided on a complete replacement for our Livermore home. Avi kept us informed every step of the way, and the finished roof exceeded our expectations. It's made a noticeable difference during hot summer days."
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.
.
.
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+1

Response time6 hrs
Recommended by17%of homeowners
Avatar for Just Stamping Concrete
Just Stamping Concrete
5.0(
28
)
Concrete Foundation - RaiseConcrete Foundation - RepairPoured Concrete Wall - Repair

Serving Mill Valley, CA and surrounding areas

Approved

In business since 2007

Free estimates

Credit card accepted

"I recently hired a landscape designer to help me revamp my backyard, and I'm thrilled with the results. The designer was creative and listened to my needs, and they were able to create a beautiful and functional outdoor space that exceeded my expectations. The team was professional and efficient, and they completed the project in a timely manner. I would highly recommend this service to anyone looking to transform their outdoor space."
Concrete
Response time2 hrs
Response rate100%
3 neighbors recently requested a quote
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

"The Cortez Brothers did an exceptional job. They viewed the property right away. Provided an estimate within adequate time. Went over my preferences. Rebuilt a fence and addition. Were very polite. Kept me in the loop with emails and phone calls. Their work turned out absolutely beautiful. I highly recommend them. I will be hiring them for painting various patio areas. With the many contractors I've worked with in the past I've felt very lucky to have found them."
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
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Foundation Repair FAQs, answered by experts

Violating building codes can lead to a number of consequences, including fines, citations, and even being required to demolish the structure and start over. If your house isn’t compliant with code requirements, you can also run into trouble when it comes time to get homeowners insurance or sell your house. Following all applicable building codes will avert costly consequences.

It’s usually not a big deal if your foundation sinks between 2 and 3 inches into the ground after construction, provided the settlement occurs evenly. This is usually indicative of normal settlement that occurs as the soil under your home adapts to the weight of the structure. If the home sinks more into the ground or the settlement occurs unevenly, leaving portions of your home to sink further down than others, then call a foundation repair specialist to address the issue and avoid additional damage.

The foundation repair that will work best varies based on the extent of the damage, the underlying cause, soil conditions, weather conditions, and more. Permanent foundation solutions like underpinning and exterior drainage solutions are better than temporary fixes that don’t address the source of the issue. Some examples of more temporary solutions include mudjacking or slabjacking, waterproof paint, and dampproofing. The best course of action is to have a reliable foundation specialist inspect your issue, treat the underlying problem, and restabilize your foundation.

Most of the time, normal foundation settling will present as thin cracks in the foundation and minor creaks in the floorboards. In contrast, you can identify foundation issues by wide or uneven foundation cracks, horizontal or step-shaped gaps on the foundation wall, or cracks that go around corners of your foundation. Foundation problems can also cause changes in your living area, like increased humidity, uneven or sloping floors, nail pops in drywall, countertops pulling away from the wall, and windows and doors getting stuck. When in doubt, call in a professional to identify the underlying cause.

Addressing gaps and cracks reduces heat loss and improves energy use.

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.