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Best basement waterproofing pros near Thermal, CA

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

Palm Construction, Inc.
5.0(
112
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Thermal, CA and surrounding areas

In business since 2016

Free estimates

Credit card accepted

It can be a daunting task looking for not only the right contractor for your job but also the right contractor for you. We completely understand what you're going through. We know every customer has different desires, different needs and different schedules. We're not only here to turn your ideas into reality but to make it a memorable experience every step of the way. Call us right now, no matter where you are in the planning process.

Recommended by100%of homeowners
Avatar for OM Construction Inc
OM Construction Inc
4.7(
151
)
Basement Drainage Channels - Install

Serving Thermal, CA and surrounding areas

In business since 1990

Free estimates

Emergency services offered

"Tony and his crew arrived on schedule, worked hard and did a great job on a complicated roof. The workers were pleasant as well as skilled. Very satisfied with both price and result. Would use again for other construction services they provide. Roof will outlast me."
Roofing Project
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+86

Recommended by95%of homeowners
Avatar for Western Pacific Roofing Corp
Western Pacific Roofing Corp
4.8(
24
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Thermal, CA and surrounding areas

In business since 1949

Free estimates

Emergency services offered

"Excellent! I could not have asked for a better crew. JT, Shaun, Pedro and Kayla were my direct contacts and all were very professional. Western Pacific Roofing came to the rescue just before this last big rain. They were not prepared to repair my roof upon first observation, however, they were able to secure the exposed area so as not to allow further damage from the impending rain storms. We survived the rain, they returned the next business day after the rains. Roof is repaired and I’m completely satisfied with my overall experience. Western Pacific Roofing has become my go to company for all of my properties’ roofing needs..."
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Recommended by100%of homeowners
Avatar for Top Service Plumbing Company
Top Service Plumbing Company
4.2(
178
)
Basement Drainage Channels - Install

Serving Thermal, CA and surrounding areas

In business since 2005

Free estimates

Emergency services offered

"The whole process was very smooth. They came out and spent a couple of hours assessing the problems...turns out we had several. The water heater burner had failed and was under warranty. But they also discovered our pressure regulator had failed, our gate valve was frozen, and we had a pipe leaking in the wall! They found the necessary part for the warranty repair and drove 50 miles each way to get it rather than make us wait 1-2 days for for the part to be shipped. They stayed until all the problems were resolved which was greatly appreciated! (My wife and three daughters were not relishing cold showers!)"
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Residential Plumbing

+1

Recommended by76%of homeowners
Avatar for CXC Contracting
CXC Contracting
4.5(
52
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Thermal, CA and surrounding areas

In business since 1995

Free estimates

Emergency services offered

"Will and his team at CXC did a great job replacing a failing stem wall perimeter foundation on my 1920s mid-city home. I bid the project out to six different contractors. His bid came in close to most and it became quickly apparent that his crew would delivery the highest quality and integrity to the job. His ability to accommodate my scheduling needs, the crew's many years of experience and overall professionalism, and the quick communication from the office administration all resulted in a great experience. A big shout out to WILL (Owner), CELSO (Foreman), and ROSANNA (Administration). Word of advice, get multiple bids and always verify general commercial liability insurance and that it covers the type of work that is going to be done. CXC's was easily verified...others were not and in some instance foundation repair was not even underwritten into their policies. CXC is BBB accredited, many others are not. I would not hesitate to work with Will and CXC again on my future projects."
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Recommended by85%of homeowners
Avatar for Bob & Marc Plumbing Heating & Air
Bob & Marc Plumbing Heating & Air
4.5(
104
)
Basement Drainage Channels - Install

Serving Thermal, CA and surrounding areas

In business since 1989

"When they came to the house, they were very honest.  I had a plumbing problem that they could’ve easily told me you need to do it now, but they really worked with me and kind of advised me on what I need to do long-term if I couldn’t do the work now and it worked and helped me save a bundle of money.  The quality of the work have always been great."
Recommended by89%of homeowners
Avatar for Bernal Construction
Bernal Construction
4.5(
38
)
Basement Drainage Channels - Install

Serving Thermal, CA and surrounding areas

In business since 1999

Free estimates

Emergency services offered

"Raul did a great job for us. He took over a bathroom remodel job that had been started by another contractor. We know contractors don't like to do this, but Raul was willing to take on the challenge! He was excellent at communicating with us throughout the project, and kept to the budget. We would definitely recommend him!"
Kitchen design & Appliances
Kitchen layout
Kitchen detail & countertops
Master Bath
Guest Bath

+11

Recommended by88%of homeowners
Avatar for Just Do It Builders Inc
Just Do It Builders Inc
4.4(
215
)
Basement Drainage Channels - Install

Serving Thermal, CA and surrounding areas

In business since 1991

Free estimates

Credit card accepted

"

I purchased a big deal for this service and it worked out good. I just did not really jell with the designer so I did not use them. I did not like his ideas and did not like how they threw out the dollar amount for the project without knowing what I wanted to do. They are good, but it just did not work for me.

"
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+29

Recommended by70%of homeowners
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Basement Waterproofing FAQs, answered by experts

Some disadvantages of crawl spaces are mostly regarding the air itself—moisture build-up and poor ventilation, which can cause problems both in the house and underneath it, even damaging the foundation itself. Crawl spaces are difficult to access and often invite unwanted pests during the hot summer months and the cold winter ones. These hard-to-seal spaces are also susceptible to water damage during periods of heavy rain or melting snow.

Living in a finished basement is acceptable, but only if the space has the proper points of egress and includes smoke and carbon monoxide (CO) detectors to ensure the safety of the occupants. A good way to ensure your finished basement is suitable for use as living space is to get the basement finishing project properly permitted.

In most cases, it is safe to live in a home with minor foundation problems, but you should not let the issues persist. Virtually all foundations have small cracks from normal settlement, which are not a structural concern but should be sealed to prevent water intrusion. However, major damage—such as large structural cracks, sinking foundations, or bulging walls—can make a home unsafe. Other issues that can pose safety and health risks include poor indoor air quality from mold or pests, uneven floors, and rotten beams or joists. It is always best to have a foundation repair expert or structural engineer inspect any issues to determine if your home is safe to live in.

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.

Plan on cleaning your crawl space at least once a year, though twice a year is ideal. During the cleaning, remove any debris or dust and check for potential issues like pest infestations or water damage. The sooner you catch these issues, the easier (and cheaper) it will be to fix them.

The Thermal, CA homeowners’ guide to basement waterproofing services

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