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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

165 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%
15 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%
32 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!

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Foundation Repair questions, answered by experts

If you don’t have any access to or knowledge of any area underneath your home, chances are it’s built slab-on-grade. You can also look for the concrete around the bottom edge of your structure; if it’s just a few inches tall, it’s likely a slab. If it’s more than that, has any windows, or you have steps leading to your main entrance, you likely have a different foundation style.

The most expensive foundation repair method is to install helical piers. Helical piers are a type of steel pier used to support sinking foundations in areas with poor soil conditions or deep bedrock. This foundation repair method can cost up to $3,000 per pier, including labor, because of its material and labor-intensive installation process. Total foundation repair costs can easily reach over $20,000 using this method.

Concrete can crack from general wear, improper installation, or in response to uneven support from the soil underneath. Small, thin cracks on the surface of aging concrete are usually a result of normal wear and tear, while cracks on new concrete more likely indicate a problem with installation. Larger cracks or uneven steps can signify a much more severe issue. A concrete contractor should be able to diagnose the cause and repair concrete cracks for you.

While a contractor is on-site repairing your concrete steps, you can have them inspect other concrete surfaces for minor damage. They may be able to fix cracks in your driveway or garage floor during the same visit. You can also ask them to check your home's foundation for minor issues they can address. However, general concrete repair experts typically cannot handle larger jobs, like leveling a sunken foundation. For major structural projects, you will need to hire a structural engineer.

In most cases, it is safe to live in a home with minor foundation problems, but you should not let the issues persist. Virtually all foundations have small cracks from normal settlement, which are not a structural concern but should be sealed to prevent water intrusion. However, major damage—such as large structural cracks, sinking foundations, or bulging walls—can make a home unsafe. Other issues that can pose safety and health risks include poor indoor air quality from mold or pests, uneven floors, and rotten beams or joists. It is always best to have a foundation repair expert or structural engineer inspect any issues to determine if your home is safe to live in.

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.