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Verified Reviews for Basement Waterproofing pros in Cool, CA

*The Angi rating for Basement Waterproofing companies in Cool, 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 Cool, 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 June 30, 2026

Find Basement waterproofing pros in Cool

Avatar for Groundworks
Groundworks
4.9(
7
)

Serving Cool, CA and surrounding areas

Approved (Corporate)

In business since 1990

Free estimates

Warranties offered

"The team went above and beyond to make sure we understood everything that was being done during the project. Very kind and respectful team. Great work. Thanks to Foreman Erick Baez chia Juan Ortega, Bricio Contreras, Aamuel Ayala, Alonso Castaneda and Juan Valenzuela Diaz."
Basement
Basement
Basement
Basement
Concrete

+16

123 neighbors recently requested a quote
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Avatar for Bonney Plumbing Heating Air & Rooter Service
Bonney Plumbing Heating Air & Rooter Service
4.0(
296
)

Serving Cool, CA and surrounding areas

Approved (Corporate)

In business since 1978

Emergency services offered

Warranties offered

"They responded very quickly and got the Job done right. Very happy with all aspects of the service provided. Thank you!"
Our team at Bonney helped restore flow at this Sacramento home by performing a sewer spot repair on the main line for our customer. This involved locating the problem area, digging the trench, snaking the line to clear the drain, repairing a section of the sewer pipe, and then backfilling the space to restore back to the original landscape.
Completed Install of Rinnai RU199e Tankless Water heater
Finished Project - Installation of new free standing Tesla Electric Vehicle (EV) charger for our customer in Davis
Before Picture showing the area where our customer in Citrus Heights wanted us to install the new water heater
Before picture of landscape

+18

40 neighbors recently requested a quote
Recommended by71%of homeowners
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Avatar for Peter Levi Plumbing, Heating, Cooling, Drains
Peter Levi Plumbing, Heating, Cooling, Drains
3.0(
13
)

Serving Cool, CA and surrounding areas

Approved (Corporate)

In business since 1990

Free estimates

Warranties offered

"HE IS VERY EXPENSIVE, BUT DOES GOOD WORK. COMES OUT WHEN I CALL, AND GETS THE WORK DONE. DOESN'T MAKE A MESS. HE INSTALLED NEW TOILET AND SINK, DID GOOD WORK."
16 neighbors recently requested a quote
Recommended by70%of homeowners
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Avatar for Platinum Plus Plumbing
Platinum Plus Plumbing
4.8(
28
)

Serving Cool, CA and surrounding areas

In business since 2006

Free estimates

Emergency services offered

"Matt did an excellent work and I am very happy! It’s been at least two weeks and no issue from my water heater - no leaks. He was very responsive and he cleaned his work. It is not easy to find someone who can do both in replacing the damaged walls and installing the water heater. I hesitated at first how much he was charging for it was very affordable. It wasn’t a scam and he did an excellent work."
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+14

Recommended by95%of homeowners
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Showing 1-10 of 33
Basement Waterproofing questions, answered by experts

Yes, it’s worth it to repair a crawl space foundation, even if the issue seems relatively minor. Foundation problems often get worse and more expensive to fix if you leave them untreated. Additionally, your entire home, from the framing and flooring to the roof system, relies on the foundation for even and level support. Issues with your foundation will almost always manifest as problems in and above your living space, so it’s important to find a solution.

The primary reason homes have crawl spaces is so the foundation can reach down below the frost line to avoid dangerous soil movement and structural damage when the ground freezes. They’re more popular in colder climates where the ground freezes down to a few feet, and slabs are most popular in warmer areas where there is no frost line. Crawl spaces also provide a space for utility lines to run where they’re at less of a risk of freezing.

Water damage always poses a primary risk of mold and mildew, but growth is not guaranteed. Whether mold develops depends on several factors, including the severity of the water damage and how quickly the area is addressed. To prevent mold, you must act fast—ideally within the first 24 hours. The process involves cleaning up all standing water and thoroughly drying the affected area. If the damage is extensive, the cleanup was delayed, or you suspect mold might be present, it is safest to assume it has grown and contact a professional mold inspector or removal expert to assess the situation.

Crawl spaces are the more desirable option overall because they provide additional space for storage and utilities, but they are more expensive to install and maintain. Slab foundations are considered a better option in warmer climates where the depth of the frost line isn’t an issue because they’re more affordable, but crawl spaces are better in areas where the frost line is deep or where flooding can be an issue.

The cost of basement waterproofing is $4,950 for the average homeowner. However, you could end up paying between $600 and $14,000, depending on factors like basement size, waterproofing method, and the region you live in. 

If you live in an area with heavy rainfall, you might be paying more for waterproofing than if you lived somewhere drier since waterproofing contractors would be in high demand. Likewise, a 500-foot basement costs between $2,500 and $5,000 to waterproof, but that price rises significantly for a larger basement.

The Cool, 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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