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Verified Reviews for Basement Waterproofing pros in Occidental, CA

*The Angi rating for Basement Waterproofing companies in Occidental, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.

*The HomeAdvisor rating for Basement Waterproofing companies in Occidental, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.

Last update on December 15, 2025

Find Basement waterproofing pros in Occidental

Avatar for Groundworks

Groundworks

5.00(
2
)
•Approved Pro

Groundworks

5.00(
2
)
•Approved Pro
97 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 Groundworks

Groundworks

4.67(
12
)
•Approved Pro

Groundworks

4.67(
12
)
•Approved Pro
Customers say: Quality work
46 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 RestoreX, LLC

RestoreX, LLC

5.00(
9
)

RestoreX, LLC

5.00(
9
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

RestoreX, LLC is a locally owned and operated Disaster Restoration Company specializing in water damage and flood removal, sewage cleanup, fire/smoke/odor cleaning services, mold inspections and mitigation for both residential and commercial properties. If you have any one of the following issues or any others please reach out for immediate assistance: Water damage Fire damage Water leak Flood Flooding Basement or crawlspace flood Roof leak Mold Extraction Wall and carpet drying Water leak Fire, smoke and odor cleanup Crawlspace moisture barriers Commercial water damage Direct insurance billing Work with all insurance companies Free inspections 24/7 Call or text: 844-MADEWHOLE (844-623-3936) Price beat guarantee! Immediate response 24/7!! http://restorex.biz

"Vendor was very responsive and professional."

John L on August 2022

RestoreX, LLC is a locally owned and operated Disaster Restoration Company specializing in water damage and flood removal, sewage cleanup, fire/smoke/odor cleaning services, mold inspections and mitigation for both residential and commercial properties. If you have any one of the following issues or any others please reach out for immediate assistance: Water damage Fire damage Water leak Flood Flooding Basement or crawlspace flood Roof leak Mold Extraction Wall and carpet drying Water leak Fire, smoke and odor cleanup Crawlspace moisture barriers Commercial water damage Direct insurance billing Work with all insurance companies Free inspections 24/7 Call or text: 844-MADEWHOLE (844-623-3936) Price beat guarantee! Immediate response 24/7!! http://restorex.biz

"Vendor was very responsive and professional."

John L on August 2022

Wilkinson Design+Construction Inc.

No reviews yet

Wilkinson Design+Construction Inc.

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

crawlspace specialist

1.00(
1
)

crawlspace specialist

1.00(
1
)
13 years of experience

this company is in business since 2012, we are a new company with 6 guys, very professional and well trained who are willing to go the extra mile to make our costumers happy. we accept cash and checks. check our website for our $500.00 coupon and discount.

this company is in business since 2012, we are a new company with 6 guys, very professional and well trained who are willing to go the extra mile to make our costumers happy. we accept cash and checks. check our website for our $500.00 coupon and discount.

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Basement Waterproofing questions, answered by experts

Basements with persistent moisture problems or flooding shouldn’t be finished until the moisture issues have been fixed. In addition, if your foundation is cracked, you have unmitigated radon levels, or you have asbestos or lead pipes, remediate the underlying problem before finishing your basement. Turning a basement into living space before fixing these issues can lead to serious health risks or structural damage. 

Encapsulation can take the place of crawl space vents since it protects the area from moisture and air all year round. Determining whether you should open or close crawl space vents can be complicated since it often depends on the weather and humidity. Skip this step by investing in crawl space encapsulation whenever possible.

If you decide to fill the space around your home’s foundation with landscaping materials, it’s important to consider the aesthetic as well as technical factors like drainage and protection from pests and the elements. Materials such as gravel, rubber mulch, concrete, and brick masonry are all good options.

Yes, you can enclose your crawl space. Enclosing your crawl space can promote energy efficiency and reduce the risks of pests and mold by limiting factors like humidity. It can also reduce heat loss, which is why doing so for the winter can make your home more comfortable.

Yes, the air from a damp basement can travel up into your living area through a process called the stack effect, so moisture, mold spores, and other debris in your basement air can all decrease your indoor air quality on your main floors. Additionally, damp basements can promote the rotting of building materials, which can damage flooring, insulation, and framing on your first floor in addition to materials in the basement.

The Occidental, CA homeowners’ guide to basement waterproofing services

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

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