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    Average homeowner rating
  • Verified reviews icon12
    Verified foundation repairs reviews

Find Foundation repair specialists in Windsor

Avatar for Groundworks

Groundworks

2333 Courage Dr Ste C
4.33(
12
)
Approved Pro

Groundworks

2333 Courage Dr Ste C
4.33(
12
)
Approved Pro
Customers say: Quality work
60 local quotes requested
20 years of experience

Groundworks, formerly Bay Area Underpinning, specializes in helping homeowners with their residential and commercial foundation repair and concrete needs. Our top priority is providing high-quality home repair solutions and personalized service across the Sacramento and San Jose areas. With fully trained technicians, industry-leading products, and nationally backed warranties, Groundworks is here to restore your foundation. Schedule your FREE inspection today! 1116054

"We hired Groundworks CA (fka Bay Area Underpinning) for what we understood was a full foundation repair. We paid $42K. They only worked on the rear and never informed us that the front wasn’t included. Months later, while selling our home, a third-party engineer found $189K in unaddressed issues at the front. We were blindsided, lost our buyer, and suffered major financial and emotional stress. Groundworks later admitted they hadn’t measured the front. Their rushed “final inspection” months later felt reactive, not professional. When asked for a partial refund, they refused. We feel misled and abandoned. Avoid."

Dominick M on June 2025

Groundworks, formerly Bay Area Underpinning, specializes in helping homeowners with their residential and commercial foundation repair and concrete needs. Our top priority is providing high-quality home repair solutions and personalized service across the Sacramento and San Jose areas. With fully trained technicians, industry-leading products, and nationally backed warranties, Groundworks is here to restore your foundation. Schedule your FREE inspection today! 1116054

"We hired Groundworks CA (fka Bay Area Underpinning) for what we understood was a full foundation repair. We paid $42K. They only worked on the rear and never informed us that the front wasn’t included. Months later, while selling our home, a third-party engineer found $189K in unaddressed issues at the front. We were blindsided, lost our buyer, and suffered major financial and emotional stress. Groundworks later admitted they hadn’t measured the front. Their rushed “final inspection” months later felt reactive, not professional. When asked for a partial refund, they refused. We feel misled and abandoned. Avoid."

Dominick M on June 2025


Avatar for Groundworks

Groundworks

2333 Courage Dr STE C
5.00(
2
)
Approved Pro

Groundworks

2333 Courage Dr STE C
5.00(
2
)
Approved Pro
140 local quotes requested
2 years of experience

Groundworks specializes in helping homeowners with their residential and commercial foundation repair and concrete needs. Our top priority is providing high-quality home repair solutions and personalized service across the Sacramento area. With fully trained technicians, industry-leading products, and nationally backed warranties, Groundworks is here to restore your foundation.

"Juanpablo H. & Alex C. provided excellent service. Their knowledge and transparency gave me all the confidence that they?re the best persons for the job. Transparency is a major trust driver for me, and their ability to have frank and informative discussion earned my loyalty. Thank you both! "

Sam _ on May 2025

Groundworks specializes in helping homeowners with their residential and commercial foundation repair and concrete needs. Our top priority is providing high-quality home repair solutions and personalized service across the Sacramento area. With fully trained technicians, industry-leading products, and nationally backed warranties, Groundworks is here to restore your foundation.

"Juanpablo H. & Alex C. provided excellent service. Their knowledge and transparency gave me all the confidence that they?re the best persons for the job. Transparency is a major trust driver for me, and their ability to have frank and informative discussion earned my loyalty. Thank you both! "

Sam _ on May 2025


Avatar for Just Stamping Concrete

Just Stamping Concrete

PO Box 292
5.00(
17
)
Approved Pro

Just Stamping Concrete

PO Box 292
5.00(
17
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
56 local quotes requested

With over three decades of experience Just Stamping Concrete, Inc are second generation contractors that will work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We welcome your questions and thank you for your interest.

"The landscape designer was creative and knowledgeable. They took the time to understand my needs and preferences, and the end result was a beautiful and functional outdoor space."

Eliana F on April 2023

With over three decades of experience Just Stamping Concrete, Inc are second generation contractors that will work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We welcome your questions and thank you for your interest.

"The landscape designer was creative and knowledgeable. They took the time to understand my needs and preferences, and the end result was a beautiful and functional outdoor space."

Eliana F on April 2023


Kanfoush Custom Concrete

No reviews yet

Kanfoush Custom Concrete

No reviews yet

We provide a wide array of high quality concrete services. We specialize is driveways, foundations, decorative hardscaping, pathways, pools, skate parks and more. We are an honest, hard working, family owned company, local to the Bay Area. We pride ourselves on putting our customers happiness first, and always delivering a quality product that will bring years of happiness. Our owner Austin Kanfoush has 15 years of experience in the field and a highly trained team behind him. He has years of experience from structural work to purely decorative hardscaping, and everything in between.

We provide a wide array of high quality concrete services. We specialize is driveways, foundations, decorative hardscaping, pathways, pools, skate parks and more. We are an honest, hard working, family owned company, local to the Bay Area. We pride ourselves on putting our customers happiness first, and always delivering a quality product that will bring years of happiness. Our owner Austin Kanfoush has 15 years of experience in the field and a highly trained team behind him. He has years of experience from structural work to purely decorative hardscaping, and everything in between.


Pete Barbieri Construction

No reviews yet

Pete Barbieri Construction

No reviews yet

Licensed General Contractor. We have spent the last few years focused on fire rebuilds, expertly navigating insurance bids; experienced in all phases in construction. Our staff is competent, experienced and honest. Our rates are fair and competitive. We have an experienced crew of laborers, carpenters, plumbers and electricians. We employ a number of US Veterans.

Licensed General Contractor. We have spent the last few years focused on fire rebuilds, expertly navigating insurance bids; experienced in all phases in construction. Our staff is competent, experienced and honest. Our rates are fair and competitive. We have an experienced crew of laborers, carpenters, plumbers and electricians. We employ a number of US Veterans.


Kazco

No reviews yet

Kazco

No reviews yet

We offer all construction services from underground to finished buildings and homes. Specializing in excavation.

We offer all construction services from underground to finished buildings and homes. Specializing in excavation.


Avatar for FortiFi

FortiFi

11111 Santa Monica Blvd
No reviews yet

FortiFi

11111 Santa Monica Blvd
No reviews yet
10 years of experience

FortiFi offers 100%, non-credit based financing for energy-efficient upgrades to your home. We offer a quick approval process, no payments for up to 17 months, and access to carefully screened contractors who will get the job done right.

FortiFi offers 100%, non-credit based financing for energy-efficient upgrades to your home. We offer a quick approval process, no payments for up to 17 months, and access to carefully screened contractors who will get the job done right.


Avatar for Xalos Foundation Support

Xalos Foundation Support

7113 Hastings Pl
5.00(
4
)

Xalos Foundation Support

7113 Hastings Pl
5.00(
4
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Xalos Foundation Support is your trusted choice for foundation repair in the San Francisco Bay Area. Our expert team specializes in foundation leveling, lifting, screw jack replacement, and underpinning. With our top-notch services, we ensure the stability and durability of your home's foundation. Contact us today for all your foundation repair needs.

"Great people to work with and they were all hard workers. I recommend them to all."

Dewane B on August 2019

Xalos Foundation Support is your trusted choice for foundation repair in the San Francisco Bay Area. Our expert team specializes in foundation leveling, lifting, screw jack replacement, and underpinning. With our top-notch services, we ensure the stability and durability of your home's foundation. Contact us today for all your foundation repair needs.

"Great people to work with and they were all hard workers. I recommend them to all."

Dewane B on August 2019


Wilkinson Design+Construction Inc.

72 Clayton Street
No reviews yet

Wilkinson Design+Construction Inc.

72 Clayton Street
No reviews yet
36 years of experience

Wilkinson Design & Construction, Inc CA State Lic. # 564598 72 Clayton Street San Rafael, CA 94901 phone: 415.785.7961 cell: 415.450.1845 fax: 415.226.0561 E-mail: [email protected] Webstite: www.WilkinsonDesign.net

Wilkinson Design & Construction, Inc CA State Lic. # 564598 72 Clayton Street San Rafael, CA 94901 phone: 415.785.7961 cell: 415.450.1845 fax: 415.226.0561 E-mail: [email protected] Webstite: www.WilkinsonDesign.net


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Foundation Repair questions, answered by experts

Not all cracks in the basement floor signal foundation problems. As the house settles, you’ll notice very thin hairline cracks, which you don’t need to worry about. Cracks that are 1/8 inch or wider should require sealing, while ones that are 1/2 inch or wider require leveling. However, if you have cracks in your basement floor with heaving, you should call a pro to assess the situation. Heaving can lead to uneven flooring, structural issues, and foundation problems.

Yes, you can fix a block foundation. It’s important to address the issue immediately and have a foundation repair professional understand the severity of the issue and determine the best course of action. If the wall collapses before the foundation is repaired, then you’ll have to reassess your entire foundation.

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.

Most houses are expected to settle over time, but foundation sinking of more than a few inches or uneven sinking of more than an inch for every 20 feet is cause for concern. Any significant or uneven sinking should be assessed by a professional to determine the cause and perform any necessary repairs. 

Yes, all basement floors crack in response to the natural settlement of the soil around them and from concrete shrinkage as it cures, and you’ll see hairline cracks as a result. However, you should keep an eye on your basement floor to see if cracks continue to lengthen or widen or show signs of water intrusion. In any of these cases, the problem is likely not settling or shrinkage, and a professional repair is necessary.

The Windsor, CA homeowners’ guide to foundation repairs

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