Top-rated basement waterproofing pros.

Best basement waterproofing pros near El Cajon, CA

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Top-Rated Basement waterproofing pros in El Cajon - Updated Nov 2026

Avatar for Ly's Plumbing
Ly's Plumbing
5.0(
7
)
Basement Drainage Channels - Install

Serving El Cajon, CA and surrounding areas

Approved

In business since 1990

Customers say: True professional

"I called Ly's Plumbing due to a leaking pipe inside the wall behind my water heater. Within the hour that I called, he arrived. He was very thorough in assessing the issue, and explained what he would need to do in detail before repairing. Price was very reasonable. I would definitely recommend him."
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+15

Recommended by71%of homeowners
RSF Construction Inc.
1.0(
1
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving El Cajon, 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!

Serrato's Painting and Decoration
New to Angi
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving El Cajon, CA and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

We're a locally owned and operated company with 20+ years of industry experience. We value honesty and integrity, and stand behind our work. We specialize in both interior and exterior residential and commercial painting projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building long-term relationships with our clients and guarantee your satisfaction!

Response time4 hrs
Response rate100%
Palm Construction, Inc.
5.0(
112
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving El Cajon, 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 El Cajon, 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 Sure Safe EFS
Sure Safe EFS
4.4(
65
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving El Cajon, CA and surrounding areas

In business since 1986

Free estimates

Credit card accepted

"We have a 50 year old single family residence that was built in the 70s. The foundation needed repairs to restore it to its original strength, and retrofits to meet current earthquake regulations. I researched all the options to repair and retrofit the home. Sure Safe's was the best available. They installed 50+ brand new concrete footers and steel piers to secure the home. No other contractor offered a solution that was adequate structurally. Art was great to work with and answered ALL my questions. Elaine coordinated the entire process and the team of Sergio, Casey and Brock worked tirelessly to install everything in a single day. Wow! I'm very pleased with the work and the solution that SureSafe installed to keep our home safe and secure. Thanks!"
Hurricane Proven. . .
Earthquake Proven. . .
The Sure Safe VR-1 Foundation is fully patented and backed with an ICC-ES Listing and Lifetime Transferable Warranty. ICC-ES listings are routinely required by building departments as proof of compliance with the International Building Code and International Residential Code. You can feel safe knowing your foundation is being repaired with certified, permitted, and patented methods. Almost all our repairs end up increasing the value of the home more than the cost of repairs. Contact us today to
The foundation of a house is the most important element of
the structure that requires the highest focus and attention
BECAUSE EVERYTHING YOU OWN SITS ON IT!
An ICC listing means the VR-1 foundation is certified to meet the Residential and International Building Codes which are required by all building departments, engineers, and architects throughout the United States and has a profound effect on the value of the home.

+4

Recommended by92%of homeowners
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Basement Waterproofing FAQs, answered by experts

Regular inspections, maintaining proper grading around the foundation, and keeping gutters clear are advisable. Vapor barriers and sealants may need checking for wear after several years.

Yes, water and water vapor can seep through cracks in your basement floor, which means you should address all basement floor cracks, even if they don’t indicate structural issues. Sealing settling cracks and shrinkage cracks is a good idea to keep water and moisture outside where it belongs. Doing so can improve your indoor air quality, reduce the risk of mold growth, make your home more comfortable, and help prevent pest infestation.

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.

If you don’t wish to dig it out and convert it into a finished basement, you can still encapsulate your crawl space to protect it from damage for an average cost of $5,500. Finishing a crawl space beyond this isn’t really worthwhile, as the low ceilings mean you won’t be able to use the area as living space.

If foundation problems are not fixed, they will likely worsen over time, leading to more complex and expensive repairs. Neglecting a damaged foundation can cause a range of issues, including:

  • Structural Damage: Minor problems like small cracks can escalate into major structural issues. This can damage the house above the foundation and, in severe cases, lead to foundation walls caving in or a total collapse.

  • Water Damage and Pests: Moisture and water intrusion can cause flooding, mold growth, and pest infestations.

  • Health and Safety Risks: Mold can lead to poor indoor air quality and other health risks, while structural instability poses a significant safety hazard.

  • Reduced Home Efficiency: A compromised foundation can negatively impact your home's energy efficiency.

To avoid these escalating problems and costs, it's best to hire a foundation repair company to address any issues as soon as you become aware of them. The earlier problems are discovered and fixed, the lower the repair cost will likely be.

The El Cajon, CA homeowners’ guide to basement waterproofing services

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