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Foundation, basement or crawlspace waterproofing / encapsulation pros in San Mateo

Avatar for Groundworks
Groundworks
1161 N Fair Oaks Ave
4.67(
3
)
Approved Pro
Groundworks
1161 N Fair Oaks Ave
4.67(
3
)
Approved Pro
41 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.

"The Groundworks folks (formerly Bay Area Underpinning) applied their foundation-underpinning technology and expertise to extend to bedrock, level, square up the foundation for an extensive house remodel. I was most impressed by the young man onsite supervisor, Josh who answered all my work done, how and why questions. I wish this info was provided up front by the estimator. (My design-build remodel contractor referred this company). "

Suzanne R on March 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.

"The Groundworks folks (formerly Bay Area Underpinning) applied their foundation-underpinning technology and expertise to extend to bedrock, level, square up the foundation for an extensive house remodel. I was most impressed by the young man onsite supervisor, Josh who answered all my work done, how and why questions. I wish this info was provided up front by the estimator. (My design-build remodel contractor referred this company). "

Suzanne R on March 2025


Avatar for Groundworks
Groundworks
1850 S. Parco Avenue
4.44(
124
)
Approved Pro
Groundworks
1850 S. Parco Avenue
4.44(
124
)
Approved Pro
Customers say: Quick response
120 local quotes requested
30 years of experience

Groundworks is the nation’s leading and fastest-growing foundation repair and water management solutions provider. Groundworks is a vertically integrated company with its own manufacturing operations and a world-class software solution, allowing us to serve our customers more effectively. From the first phone call to the annual maintenance offered, our customers have peace of mind knowing we’re there with one mission – to repair, protect and improve their home.

"Roger and his crew of Manuel, Carlos and Josias did everything we asked for and more. Roger answered all of our questions, kept us informed on the status of the project and managed the project extremely well. We definitely made the right decision having Groundworks do our project."

Eric S on March 2025

Groundworks is the nation’s leading and fastest-growing foundation repair and water management solutions provider. Groundworks is a vertically integrated company with its own manufacturing operations and a world-class software solution, allowing us to serve our customers more effectively. From the first phone call to the annual maintenance offered, our customers have peace of mind knowing we’re there with one mission – to repair, protect and improve their home.

"Roger and his crew of Manuel, Carlos and Josias did everything we asked for and more. Roger answered all of our questions, kept us informed on the status of the project and managed the project extremely well. We definitely made the right decision having Groundworks do our project."

Eric S on March 2025


Avatar for Foundation Repair of CA
Foundation Repair of CA
1813 Rutan Drive Suite A
5.00(
2
)
Approved Pro
Foundation Repair of CA
1813 Rutan Drive Suite A
5.00(
2
)
Approved Pro
Customers say: Quick response
76 local quotes requested
14 years of experience

At Foundation Repair of CA, we specialize in stabilizing homes and businesses throughout Northern California. We specialize in primary foundation damage repair of all types. We provide solutions for failing foundations, including sinking or settling foundations, sagging crawl space, crawl space encapsulation and insulation, and earthquake retrofitting. Our expertise also includes concrete restoration, which incorporates concrete lifting and leveling of slabs, driveways, walkways and pool decks, and more! We pride ourselves in providing free, no obligation foundation repair quotes for homeowners within our service area. Protect your home or business. Call us today.

"All around good experience"

Tat H on August 2023

At Foundation Repair of CA, we specialize in stabilizing homes and businesses throughout Northern California. We specialize in primary foundation damage repair of all types. We provide solutions for failing foundations, including sinking or settling foundations, sagging crawl space, crawl space encapsulation and insulation, and earthquake retrofitting. Our expertise also includes concrete restoration, which incorporates concrete lifting and leveling of slabs, driveways, walkways and pool decks, and more! We pride ourselves in providing free, no obligation foundation repair quotes for homeowners within our service area. Protect your home or business. Call us today.

"All around good experience"

Tat H on August 2023


RSF Construction Inc.
6910 Monte Verde Drive
New on HomeAdvisorNew on Angi
Approved Pro
RSF Construction Inc.
6910 Monte Verde Drive
New on AngiNew on HomeAdvisor
Approved Pro
231 local quotes requested
6 years of experience

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!

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!


Avatar for Groundworks
Groundworks
1161 N Fair Oaks Ave
3.00(
4
)
Approved Pro
Groundworks
1161 N Fair Oaks Ave
3.00(
4
)
Approved Pro
79 local quotes requested
20 years of experience

In 2005, Steven and Kelly Egloff founded Bay Area Underpinning with the goal of providing a cost-effective, engineered solution to foundation settlement problems with an emphasis on educating customers. In 2023, BAU partnered with Groundworks, the nation’s leading and fastest growing foundation repair and water management solutions provider, to offer the best products in the industry and provide elite business management resources to their employees. BAU will now operate under the Groundworks name, while continuing to improve the customer experience and provide expertise and guidance from San Jose to Sacramento. Schedule your FREE inspection today!

"went horrible 2 week job took 7 months"

Cat D on April 2025

In 2005, Steven and Kelly Egloff founded Bay Area Underpinning with the goal of providing a cost-effective, engineered solution to foundation settlement problems with an emphasis on educating customers. In 2023, BAU partnered with Groundworks, the nation’s leading and fastest growing foundation repair and water management solutions provider, to offer the best products in the industry and provide elite business management resources to their employees. BAU will now operate under the Groundworks name, while continuing to improve the customer experience and provide expertise and guidance from San Jose to Sacramento. Schedule your FREE inspection today!

"went horrible 2 week job took 7 months"

Cat D on April 2025


Avatar for Go Green Landscape
Go Green Landscape
584 Castro St
5.00(
4
)
Approved Pro
Go Green Landscape
584 Castro St
5.00(
4
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
227 local quotes requested

We specialize in all phases of landscaping and hardscaping services! At Go Green Landscape our belief is that our customers needs are the utmost importance. Our team has experience dating back to 2005 and are committed to meeting those needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is to big or to small, please contact us for a free estimate!

"The service went well. They were quick."

Oz S on June 2021

We specialize in all phases of landscaping and hardscaping services! At Go Green Landscape our belief is that our customers needs are the utmost importance. Our team has experience dating back to 2005 and are committed to meeting those needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is to big or to small, please contact us for a free estimate!

"The service went well. They were quick."

Oz S on June 2021


Poly-Am Masonry & Concrete
Based Out Of
5.00(
1
)
Approved Pro
Poly-Am Masonry & Concrete
Based Out Of
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
94 local quotes requested

We offer a variety of concrete services. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality of work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule an estimate today!

"I recently had the pleasure of working with Ben and his team on a major concrete project at my property in San Mateo, and I cannot recommend them highly enough. Our project involved constructing a 180-foot-long sidewalk and a 16-car garage driveway on a busy street, which required precision, organization, and expertise. Ben and his team exceeded my expectations in every way. From the very beginning, Ben was professional, transparent, and detail-oriented. He walked me through the entire process, including securing the necessary city permits and clearly marking all underground utility lines to avoid any issues. His attention to detail and proactive approach gave me complete confidence in his abilities. During the project, we encountered an unexpected challenge: two segments of a corrupted underground sewer line. Ben handled the situation with remarkable professionalism and flexibility. He coordinated seamlessly with my plumber, adjusting his team's schedule to allow for the replacement of a total of 40 feet of 3" sewer lines. Additionally, he replaced the incoming copper water line without any delays or complications. This level of collaboration and problem-solving truly set Ben apart. The execution of the project was flawless. Ben and his team were incredibly organized and committed to staying on schedule. They arrived early every morning and worked diligently until late afternoon, ensuring consistent progress. It was clear that Ben treated my project as a top priority, and his dedication as a project manager was evident throughout. The quality of their work is outstanding. The finished sidewalk and driveway are not only functional but also aesthetically pleasing. Ben's quote was fair and reasonable, and he delivered exceptional value for the investment. I am so grateful to have found Ben and his team. If you're looking for a reliable, skilled, and professional concrete contractor who can handle unexpected challenges with ease, Ben is the best person for the job. I will definitely hire him again for any future projects and highly recommend him to anyone in need of top-notch concrete work. Thank you, Ben and team, for making this project such a positive experience! Your expertise, flexibility, and dedication are truly appreciated."

Jack W on February 2025

We offer a variety of concrete services. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality of work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule an estimate today!

"I recently had the pleasure of working with Ben and his team on a major concrete project at my property in San Mateo, and I cannot recommend them highly enough. Our project involved constructing a 180-foot-long sidewalk and a 16-car garage driveway on a busy street, which required precision, organization, and expertise. Ben and his team exceeded my expectations in every way. From the very beginning, Ben was professional, transparent, and detail-oriented. He walked me through the entire process, including securing the necessary city permits and clearly marking all underground utility lines to avoid any issues. His attention to detail and proactive approach gave me complete confidence in his abilities. During the project, we encountered an unexpected challenge: two segments of a corrupted underground sewer line. Ben handled the situation with remarkable professionalism and flexibility. He coordinated seamlessly with my plumber, adjusting his team's schedule to allow for the replacement of a total of 40 feet of 3" sewer lines. Additionally, he replaced the incoming copper water line without any delays or complications. This level of collaboration and problem-solving truly set Ben apart. The execution of the project was flawless. Ben and his team were incredibly organized and committed to staying on schedule. They arrived early every morning and worked diligently until late afternoon, ensuring consistent progress. It was clear that Ben treated my project as a top priority, and his dedication as a project manager was evident throughout. The quality of their work is outstanding. The finished sidewalk and driveway are not only functional but also aesthetically pleasing. Ben's quote was fair and reasonable, and he delivered exceptional value for the investment. I am so grateful to have found Ben and his team. If you're looking for a reliable, skilled, and professional concrete contractor who can handle unexpected challenges with ease, Ben is the best person for the job. I will definitely hire him again for any future projects and highly recommend him to anyone in need of top-notch concrete work. Thank you, Ben and team, for making this project such a positive experience! Your expertise, flexibility, and dedication are truly appreciated."

Jack W on February 2025


GreenTree & Land
123 Main St.
5.00(
1
)
Approved Pro
GreenTree & Land
123 Main St.
5.00(
1
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
150 local quotes requested

We specialize in landscaping and tree services. Emergency services available. We pride ourselves on the quality work we provide, while delivering great customer service. Call -or- click to schedule an estimate today!

"They are very fast, effecient and easy to work with. I highly recommend them."

Frank F on January 2022

We specialize in landscaping and tree services. Emergency services available. We pride ourselves on the quality work we provide, while delivering great customer service. Call -or- click to schedule an estimate today!

"They are very fast, effecient and easy to work with. I highly recommend them."

Frank F on January 2022


Avatar for ABOVE THE CUT
ABOVE THE CUT
344 South Baywood Avenue
New on HomeAdvisorNew on Angi
Approved Pro
ABOVE THE CUT
344 South Baywood Avenue
New on AngiNew on HomeAdvisor
Approved Pro
481 local quotes requested
25 years of experience

Welcome to Above The Cut! We look forward to serving you!

Welcome to Above The Cut! We look forward to serving you!


Avatar for Groundworks
Groundworks
2333 Courage Dr Ste C
4.64(
11
)
Approved Pro
Groundworks
2333 Courage Dr Ste C
4.64(
11
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
226 local quotes requested

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!

"Thank you Bay Area Underpinning for saving the day! I was in a challenging and prolonged situation since going into contract with EagleLift for the stabilization/lift for my house. After a long permit process and continuously delayed start dates, I was informed that EagleLift had been acquired by Groundworks and I’d have to wait a few more month before any progress could happen. It was a deeply frustrating process but the EagleLift team was able to connect us with Bay Area Underpinning (another Groundworks company) who were able to take over and expedite the project. To my surprise, James T. from BAU reached out quickly and assigned a team to come to my house within a week! The team that ended up working on the house, specifically Ish, John and Abel were exceptional. They were diligent, knowledgable, friendly and deeply considerate. They are truly pros who knocked the project out in no time which was reassuring since I was nervous that this project was gonna stretch into the rainy season. My house feels so stable now (minimal cracks too) and the considerable slope is now practically nonexistent! Thanks a lot James T., Ish, John, Abel and the BAU team for taking really great care of us."

Chris N on November 2024

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!

"Thank you Bay Area Underpinning for saving the day! I was in a challenging and prolonged situation since going into contract with EagleLift for the stabilization/lift for my house. After a long permit process and continuously delayed start dates, I was informed that EagleLift had been acquired by Groundworks and I’d have to wait a few more month before any progress could happen. It was a deeply frustrating process but the EagleLift team was able to connect us with Bay Area Underpinning (another Groundworks company) who were able to take over and expedite the project. To my surprise, James T. from BAU reached out quickly and assigned a team to come to my house within a week! The team that ended up working on the house, specifically Ish, John and Abel were exceptional. They were diligent, knowledgable, friendly and deeply considerate. They are truly pros who knocked the project out in no time which was reassuring since I was nervous that this project was gonna stretch into the rainy season. My house feels so stable now (minimal cracks too) and the considerable slope is now practically nonexistent! Thanks a lot James T., Ish, John, Abel and the BAU team for taking really great care of us."

Chris N on November 2024

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Showing 1-10 of 949

Foundation, basement or crawlspace waterproofing / encapsulations FAQs

Cleaning your crawl space is a worthwhile investment for several important reasons. A properly maintained crawl space prevents structural damage by eliminating moisture that can deteriorate wood supports and metal components. It also significantly improves your home's indoor air quality by removing allergens like mold spores and pest droppings that can circulate through your living spaces. 

Additionally, a clean crawl space contributes to better energy efficiency by allowing proper insulation installation and reducing humidity levels that force your HVAC system to work harder.

Several warning signs indicate your crawl space needs professional attention. Look for musty odors throughout your home, unexplained increases in allergy symptoms, higher energy bills, visible pest activity, or moisture issues. 

Other indicators include sagging floors, warped wood, visible mold growth, standing water, or damaged insulation. If your crawl space hasn't been inspected in over a year, or if you've recently experienced flooding or severe weather, it's advisable to have professionals assess the space even without obvious symptoms.

Most crawl space cleaning projects take between one and three days to complete, depending on several factors. Simple debris removal in a small, relatively clean space might be finished in a single day. 

More involved projects that include mold remediation, water damage repair, or pest control require two to three days. For large crawl spaces or those with extensive contamination, the timeline might extend to a week, particularly if additional services like encapsulation are included in the project scope.

You can remain in your home during basic crawl space cleaning. However, if the project involves mold remediation or pest extermination with chemical treatments, temporary relocation might be recommended, especially for household members with respiratory conditions or chemical sensitivities. 

Professional cleaning companies use containment procedures to minimize the spread of dust and contaminants into living spaces, but some disruption is inevitable. Discuss your specific situation with your service provider to determine the best approach for your family's needs.

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