Top-rated foundation repair specialists.

Get matched with top foundation repair specialists in Lagunitas-Forest Knolls, CA

Enter your zip and get matched with up to 5 pros

Need a pro for your foundation repair project in Lagunitas-Forest Knolls, CA?

Select your specific project to find the pro for you.

Find Foundation repair specialists in Lagunitas-Forest Knolls

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

Serving Lagunitas-Forest Knolls, 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

167 neighbors recently requested a quote
Recommended by58%of homeowners
Avatar for Just Stamping Concrete
Just Stamping Concrete
5.0(
28
)
Concrete Foundation - RaiseConcrete Foundation - RepairPoured Concrete Wall - Repair

Serving Lagunitas-Forest Knolls, 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
Avatar for SH Grading & Excavating
SH Grading & Excavating
5.0(
17
)
Foundation Drainage - Install or Replace

Serving Lagunitas-Forest Knolls, CA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"They were helpful in laying out a plan, The work was done in a timely manner with care to preserve the grounds. Great customer relations and their excellent work was done for a very reasonable price. I recommend them highly."
Grading
Grading
Grading
Grading
Dirt pile

+25

Response time7 hrs
Response rate100%
16 neighbors recently requested a quote
SGB Inc.
5.0(
6
)
Foundation Drainage - Install or Replace

Serving Lagunitas-Forest Knolls, CA and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

"SGB Construction recently replaced my roof, and I'm thoroughly impressed. From start to finish, their professionalism stood out. The new roof looks great and gives me peace of mind. I highly recommend SGB for roofing services. Thanks for a job well done!"
Response time2 days
Response rate86%
Recommended by100%of homeowners
Avatar for G Bros Landscape, Inc.
G Bros Landscape, Inc.
5.0(
3
)
Foundation Drainage - Install or Replace

Serving Lagunitas-Forest Knolls, CA and surrounding areas

Approved

In business since 2021

Free estimates

Customers say: Quick response

"Very communicative, responsible and I had a great customer service experience with him. He really listens to the customer. He listened to my questions and inquiries and was able to provide answers and solutions."
LANDSCAPE CONSTRUCTION
LANDSCAPE CONSTRUCTION
LANDSCAPE CONSTRUCTION
Response time7 hrs
2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Ultra Construction Group Inc
Ultra Construction Group Inc
4.4(
5
)
Poured Concrete Wall - Repair

Serving Lagunitas-Forest Knolls, CA and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"Gio and the entire Ultra Construction Group team are amazing. They showed up on time and were incredibly organized and their attention to detail made the project even better then I imagined. I would highly recommend this company for any concrete project big or small."
Response time2 days
Response rate90%
31 neighbors recently requested a quote
RSF Construction Inc.
1.0(
1
)
Concrete Foundation - RaiseConcrete Foundation - RepairFoundation Drainage - Install or Replace+1 more

Serving Lagunitas-Forest Knolls, CA and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

RSF Construction Inc. is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

...
Showing 1-10 of 97
Foundation Repair questions, answered by experts

The best way to determine if ceiling cracks are structural is to hire a ceiling contractor to inspect the cracks and provide a professional opinion. That said, you might be able to make an educated guess based on the size and appearance of the crack. Larger cracks, cracks accompanied by sagging or discoloration, and cracks that travel from the ceiling down the walls are all signs of structural issues.

Underpinning is a specific type of foundation repair where a specialist installs deep piers under a foundation to provide additional support. This method is often used when the soil beneath the foundation can no longer evenly support the structure. Foundation repair is an umbrella term that includes many methods. Besides underpinning, other common repairs include foundation crack repair, waterproofing, cosmetic repairs, and concrete block wall stabilization. Often, underpinning is accompanied by other work to address the root cause of the foundation issue, such as regrading the yard to ensure water drains away from the house.

Minor hairline cracks in your concrete may not look pretty, but they’re often not serious. It’s when concrete cracks are larger—wide enough that you can slide a credit card into it—that you need to worry. If you monitor a crack and can trace its active expansion over time, you’ll definitely want to call in a pro to inspect it and, potentially, repair it. Want to prevent cracks in your garage and driveway concrete in the future? Stay on top of sealing. Here’s how to seal your concrete garage floor and driveway.

Most building departments will require that a certified and licensed foundation repair professional or a structural engineer pull permits for foundation repair, so homeowners usually cannot pull them themselves. This helps ensure that an experienced professional completes all structural work on your home. Minor repairs that are technically DIYable often won’t require permits, but it’s still a good idea to hire a professional to carry out foundation repairs.

Crawl space foundation problems can stem from a few different issues, but the most common are moisture and water problems and soil instability. Moisture and water issues are often a result of poor drainage, which can lead to water intrusion and soil expansion and contraction, leaving your foundation under added stress. A few things can cause soil instability, including poor drainage, karst landscapes and resulting sinkholes, and poorly compacted soil during construction.

The Lagunitas-Forest Knolls, CA homeowners’ guide to foundation repairs

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