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Best basement waterproofing pros near Cool, CA

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Top-Rated Basement waterproofing pros in Cool - Updated Nov 2026

Avatar for Jacob Gregory Construction
Jacob Gregory Construction
5.0(
3
)
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Cool, CA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Incredible performance. Came in on time under budget. Great craftsmanship . I would hire him again 100 percent ! Demolished existing outhouse , dug new pit 5 feet deep , installed new concrete rebar enforced retaining wall , constructed brand new outhouse built to withstand 10 foot snow load in winter. The whole family loves it"
Retaining wall
Response time2 days
5 neighbors recently requested a quote
Avatar for 5-Star Plumbing
5-Star Plumbing
5.0(
81
)
Basement Drainage Channels - Install

Serving Cool, CA and surrounding areas

In business since 2017

Free estimates

Emergency services offered

"Saturday night the drain clogged. I️ put 25’ snake down with no success. Called them 9am Sunday morning, arrived around 11. All other plumbers had no Sunday availability or would be way later in afternoon. Oleg arrived, very quickly assessed situation and got industrial snake. Took about 45 minutes (and about 35’ of snake) so clean clog. After he flushed out garbage disposal and gave some maintenance tips. Had been quoted $99 to $115 and ended up at $105. Gave my kids pens when leaving which they thought was very cool. Quick, clean, reasonable price, polite. Not much else you can ask for."
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+29

Recommended by100%of homeowners
Avatar for Csc Plumbing Sewer and Drain Service | Chapmans Legacy Plumbing
Csc Plumbing Sewer and Drain Service | Chapmans Legacy Plumbing
4.6(
136
)
Basement Drainage Channels - Install

Serving Cool, CA and surrounding areas

In business since 2005

Free estimates

Emergency services offered

"I called this morning, and they showed up at my house within two hours. It was a simple fix. The overall price was more than I expected, but I wouldn't complain since they came out so fast. I can't say if it was higher or lower than anyone else, because no one else would come today. Overall it was fair, quick (15 minutes of work) , professional, and the response was exceptional. I would recommend them to anyone who needed a plumber."
Additional Photos
Recommended by96%of homeowners
US Trenchless
4.9(
8
)
Basement Drainage Channels - Install

Serving Cool, CA and surrounding areas

In business since 2008

Free estimates

Emergency services offered

"They were okay. I had an upstairs bathtub and it was leaking a lot and they fixed it. They put a steel mesh around the tub so that the rodents couldn't get to it. He went above and beyond. I am satisfied with his work. He is very communicative, explains things, tells you what he did and what he found."
Recommended by100%of homeowners
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Basement Waterproofing FAQs, answered by experts

You don’t always need to install a dehumidifier in your encapsulated crawl space, but it might be a good idea in certain instances. If you notice obvious signs of condensation, mold, or musty smells permeating from your crawl space, a dehumidifier can help. It’s ideal for homes in humid areas.

In a worst case scenario, structural damage like rust on metal beams, rotting wood, and swelling on doors and windows can signal moisture problems that would benefit from a dehumidifier.

Yes, cleaning a crawl space is worth the cost. Although it's an out-of-sight area, neglecting it can lead to significant problems like pest infestations (including termites and carpenter ants), mold, and fungal growth, which can cause structural damage. Regular cleaning helps prevent these issues. While hiring a contractor has ongoing costs, the price for cleaning—typically between $0.50 and $4 per square foot—is much lower than the cost to remediate a pest or mold problem. Additionally, a clean crawl space can lead to improved indoor air quality and more comfortable temperatures in your home.

Yes, you can finish a basement that leaks, as long as you address the leak first. Before finishing a basement, you’ll need to repair any cracks in the walls and waterproof the basement to prevent future leaks. It’s much harder to clean up a water leak from a finished basement than an unfinished one, so preemptively addressing any leaking areas prevents expensive repairs in the future.

The foundation repair that will work best varies based on the extent of the damage, the underlying cause, soil conditions, weather conditions, and more. Permanent foundation solutions like underpinning and exterior drainage solutions are better than temporary fixes that don’t address the source of the issue. Some examples of more temporary solutions include mudjacking or slabjacking, waterproof paint, and dampproofing. The best course of action is to have a reliable foundation specialist inspect your issue, treat the underlying problem, and restabilize your foundation.

It’s not the number of weep holes that should be of concern to builders but rather their spacing. Weep holes are usually spaced anywhere between 16 inches on center when using round tubes or wicking materials and 24 inches on center when using open-head joints. This is a more conservative spacing than the 33-inch maximum spacing on center that’s mentioned in the International Residential Code. All in all, the total number of weep holes a brick exterior should have will depend on the size of the structure.

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.