Top-rated basement waterproofing pros.

Best basement waterproofing pros near La Palma, CA

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Top-Rated Basement waterproofing pros in La Palma - Updated Nov 2026

Avatar for Alpha Structural, Inc.
Alpha Structural, Inc.
4.6(
241
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving La Palma, CA and surrounding areas

Approved (Corporate)

In business since 1992

Free estimates

Emergency services offered

"Erinn was my initial contact and he gave a very through and fair estimate. We had structural work done to support floor joists and large beams under the garage that needed replacing. Ernesto and his team, Julio, Salvatore and Gilder worked tirelessly to complete the work and were respectful, punctual, informative and good humoured throughout the entire process. I would not hesitate to use them again or recommend them to others. A really great company!!"
Basement Addition
Basement Expansion
Caisson Supported Retaining Wall
Cantilevered Deck Design Build
Deck Expansion and Slope Failure with Retaining Wall

+323

Response time10 hrs
Response rate100%
11 neighbors recently requested a quote
RSF Construction Inc.
1.0(
1
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving La Palma, CA and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

RSF Construction Inc. is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

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

Serving La Palma, 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
Palm Construction, Inc.
5.0(
90
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving La Palma, CA and surrounding areas

In business since 2016

Free estimates

Credit card accepted

"We worked with Ali (sales manager) and Tony (project manager), who took the time to design a project that made sense for our property and our budget, made a number of suggestions and recommendations and were never pushy or tried to "sell" us on something. The crew really went above and beyond to provide top quality workmanship and overall we were in very good hands. Highly recommended!"
Recommended by100%of homeowners
Tom's Environmental Care
4.9(
118
)
Basement Drainage Channels - Install

Serving La Palma, CA and surrounding areas

In business since 1975

Free estimates

Emergency services offered

"Tom determined that someone had turned down the pressure on all of the sprinkler lines.  He adjusted them and they are all working just fine. 
There was no charge for the call or the adjustment.
Tom is great to work with and extremely honest.  I have used him in the past and will continue to do so for all of my sprinkler needs.
"
Recommended by99%of homeowners
Avatar for Your City Rooter and Plumbing
Your City Rooter and Plumbing
4.8(
28
)
Basement Drainage Channels - Install

Serving La Palma, CA and surrounding areas

In business since 2022

Emergency services offered

Warranties offered

"Worked with Jake primarily as he did the plumbing portion, and another gentleman did the drywall. Good communication, prompt, very professional and overall pleasant to work with. Price is on the mid-higher end, but I felt very confident in the reliability of the finished job, plus they got the work done quickly. If I had to cite one small cosmetic negative it would be that the top edge of the box is a tiny bit less than level, though the walls in that laundry closet were never quite straight to begin with. Would go through them again and consider for other home projects in the future."
Original water heater location.
3/4” water main service and potable water system repipe (PEX A and Copper)
Plumbing Project
Drywall patch
Bathroom Remodel

+83

Response time1 day
Response rate100%
Recommended by92%of homeowners
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Basement Waterproofing FAQs, answered by experts

Yes, outside leaks can easily cause damage to your home if you don’t have waterproofing measures in place. Regularly check your property for signs of a leak, ensure your home’s landscaping is at least at a 5% slope, your basement windows are sealed, and you have an aligned gutter system to catch rainwater.

Topical sealers adhere to the surface of concrete to create a protective layer. In many cases, this is all you need for concrete that sees light to moderate traffic, such as your basement. Penetrating sealers, on the other hand, bond with the free lime in the top layer of concrete to form calcium silicate, which prevents liquid from passing through. This type of sealer protects the surface from water, oil, and gasoline spills.

A plastic vapor barrier should completely cover your basement to prevent water from penetrating through the walls. This typically goes before installing insulation to prevent moisture from building up and becoming trapped on the inside of your insulation, where it can collect and lead to mold damage. Installing insulation after the vapor barrier allows for any moisture to exit the walls for better ventilation.

You can seal a concrete slab by cleaning the surface, filling in any cracks, etching the surface, applying a sealer, and letting it dry. Concrete slabs don't typically need sealing, but you can use a topical concrete sealer if you notice signs of water damage. If you haven't already fixed the cause of the leak, then you'll want to repair the plumbing before you seal a concrete slab.

Yes, these services often increase home value by preventing moisture-related issues and enhancing the usable space in basements or crawlspaces.

The La Palma, CA homeowners’ guide to basement waterproofing services

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