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Find Foundation, basement or crawlspace waterproofing / encapsulation pros in Sunnyvale

Avatar for Groundworks

Groundworks

4.67(
3
)
Approved Pro

Groundworks

4.67(
3
)
Approved Pro
90 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 Foundation Repair of CA

Foundation Repair of CA

5.00(
2
)
Approved Pro

Foundation Repair of CA

5.00(
2
)
Approved Pro
Customers say: Quick response
31 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


Avatar for Groundworks

Groundworks

3.40(
5
)
Approved Pro

Groundworks

3.40(
5
)
Approved Pro
20 years of experience
Free onsite estimate

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! 1116054

"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! 1116054

"went horrible 2 week job took 7 months"

Cat D on April 2025


Avatar for Groundworks

Groundworks

4.67(
12
)
Approved Pro

Groundworks

4.67(
12
)
Approved Pro
Customers say: Quality work
18 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


Evergreen Landscaping

3.50(
2
)

Evergreen Landscaping

3.50(
2
)
Customers say: Quick response
44 years of experience

Evergreen Landscaping is a full service company that designs and/or builds residential gardens and landscapes. Our professional expertise coupled with outstanding customer service are the attributes that have placed us among the industry leaders in Silicon Valley for over 25 years.

Evergreen Landscaping is a full service company that designs and/or builds residential gardens and landscapes. Our professional expertise coupled with outstanding customer service are the attributes that have placed us among the industry leaders in Silicon Valley for over 25 years.


Avatar for Greener Better Lawns / Synthetic Grass

Greener Better Lawns / Synthetic Grass

No reviews yet

Greener Better Lawns / Synthetic Grass

No reviews yet
20 years of experience

We are a licensed Landscape Company Installing artificial grass, putting greens since 2005 , our services includes but are not limited to: artificial grass turf & sod custom installations for residential & commercial areas .....we have installations starting at $7.00 Sq Ft.... we offer free estimates and we are insured & bonded. we beat any price and we serve the entire bay area..

We are a licensed Landscape Company Installing artificial grass, putting greens since 2005 , our services includes but are not limited to: artificial grass turf & sod custom installations for residential & commercial areas .....we have installations starting at $7.00 Sq Ft.... we offer free estimates and we are insured & bonded. we beat any price and we serve the entire bay area..


Avatar for EARTHCARE LANDSCAPING

EARTHCARE LANDSCAPING

4.81(
21
)

EARTHCARE LANDSCAPING

4.81(
21
)
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Sustainable Landscape Design and Installation (Quarterly Maintenance too!)

Sustainable Landscape Design and Installation (Quarterly Maintenance too!)


Green Grass Property Maintenance

3.50(
2
)

Green Grass Property Maintenance

3.50(
2
)
Customers say: Quick response
23 years of experience

Operated by Robert Issakhani.

Operated by Robert Issakhani.


Avatar for Armor Coatings

Armor Coatings

3.25(
4
)

Armor Coatings

3.25(
4
)
41 years of experience

Jim, the owner of Armor Coatings, has been in the industry for 30 years; providing beautiful custom concrete overlays, decorative concrete staining and waterproofing for interiors and exteriors of homes and businesses. He is a true artist and takes the time with his customers to customize a one of a kind product.

Jim, the owner of Armor Coatings, has been in the industry for 30 years; providing beautiful custom concrete overlays, decorative concrete staining and waterproofing for interiors and exteriors of homes and businesses. He is a true artist and takes the time with his customers to customize a one of a kind product.


Avatar for Shaz Construction & Design

Shaz Construction & Design

No reviews yet

Shaz Construction & Design

No reviews yet
38 years of experience

For the past 30 years in Marin and the Bay Area, Shaz Construction has been known and trusted as a highly recommended contractor for excellent workmanship combining quality, innovation, and value. Shaz Construction takes pride in using his artistic ability to make each client's project unique, and to fit their needs/lifestyle.

For the past 30 years in Marin and the Bay Area, Shaz Construction has been known and trusted as a highly recommended contractor for excellent workmanship combining quality, innovation, and value. Shaz Construction takes pride in using his artistic ability to make each client's project unique, and to fit their needs/lifestyle.

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FAQs for foundation, basement or crawlspace waterproofing / encapsulation projects in Sunnyvale, CA

The most affordable way to waterproof your basement is with interior methods like waterproof paint, costing between $1 and $8 per square foot, or silicate concrete sealers priced at $4 to $6 per square foot. However, these solutions are only suitable for certain issues. If your basement moisture is due to more serious problems like a cracked foundation, you'll need more extensive (and costly) repairs.

Absolutely! Waterproofing your basement is a smart investment that can increase your home's value. By keeping your basement dry and free of moisture problems, you protect your home's structural integrity and make it more appealing to potential buyers. Plus, taking proactive measures now can prevent costly water damage repairs down the line.

The time required to waterproof a basement depends on the selected method. Some approaches to interior waterproofing, like paint or sealant, can be completed within a day. Installing new drains or weeping tiles will need at least two to three days of labor. Any forms of exterior waterproofing that require you to excavate land will require an additional three days of work to prepare the ground.

Yes, basement waterproofing can significantly increase your home's value. A dry, leak-free basement is a strong selling point for potential buyers, enhancing your property's desirability and market price. Investing in professional waterproofing not only protects your home's structural integrity but also ensures a healthier living environment by preventing mold and mildew growth.

Waterproofing both the interior and exterior of your basement offers the best protection against moisture. Exterior waterproofing stops water from penetrating your foundation, while interior methods manage any moisture that does enter. If you must choose one, exterior waterproofing is generally more effective, as it prevents water from reaching your home's interior in the first place.

The Sunnyvale, CA homeowners’ guide to foundation, basement or crawlspace waterproofing / encapsulations

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