Top-rated basement waterproofing pros.

Best basement waterproofing pros near Oak Park, CA

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Top-Rated Basement waterproofing pros in Oak Park - 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 Oak Park, 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
Avatar for Team Rooter Plumbing of Ventura
Team Rooter Plumbing of Ventura
4.6(
12
)
Basement Drainage Channels - Install

Serving Oak Park, CA and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"They were professional, on time, and explained exactly how the job was done. The repair was quick, the price was very reasonable, and they cleaned up perfectly afterward."
Sewer Lateral Replacement in Camarillo
Main Line Re-route & Repair in Oxnard
Main Sewer line Repair in Simi Valley by Team Rooter Plumbing.
Call Team Rooter 24/7 for any plumbing issues.
Sewer Lateral Replacement in Camarillo

+125

Response time9 hrs
1 neighbors recently requested a quote
Recommended by16%of homeowners
RSF Construction Inc.
1.0(
1
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Oak Park, 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(
90
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Oak Park, 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
Avatar for Landscape West Enterprises Inc
Landscape West Enterprises Inc
5.0(
29
)
Basement Drainage Channels - Install

Serving Oak Park, CA and surrounding areas

In business since 1979

"We were disappointed with the purchase.  The visual plan they submitted was rudimentary.  It was in black and white and didn't persuasively demonstrate an attractive vision.  Our homeowners' association rejected it.  The projected cost was also deeply disappointing.
"
Tennis Court by Landscape West Enterprises
Tennis court seating area
Paver path to Gazebo
Landscape area
Landscape area 2

+156

Recommended by96%of homeowners
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Basement Waterproofing FAQs, answered by experts

Preventing future basement flooding often involves installing sump pumps, improving drainage, sealing foundation cracks, and maintaining gutters. Costs vary, but preventive measures can range from a few hundred to several thousand dollars, depending on the solutions chosen. Investing in prevention can save you money on future flooded basement cleanup costs and repairs.

Basements are commonly converted into game rooms. The potential challenges you may run into include controlling moisture, working with low ceilings, limited natural light, and the need for additional electrical or HVAC work. Addressing these issues can add to the total cost, but it ensures a comfortable and functional space.

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.

“Basement waterproofing” sometimes refers to applying a waterproof sealant to basement walls, in which case you would use a waterproof paint, often made of latex. However, there are many methods you can use to waterproof a basement, including exterior drainage systems, interior drainage systems, dehumidifiers, and more. As such, the materials you use can vary depending on the methods you use.

Due to the nature of basements, some level of waterproofing is necessary to prevent water from seeping in and causing damage. Some definitive signs that your basement needs waterproofing measures or needs existing waterproofing measures need to be updated include:

  • Water in your basement, including damp walls or puddles on the floor

  • Mold spots in your basement

  • Musty smells or odors

  • Warped doors or walls

  • Cracks in walls

  • Insect issues, such as cockroaches and termites

The Oak Park, CA homeowners’ guide to basement waterproofing services

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