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

The first step to preventing foundation cracks is to repair any current ones. When one crack forms, it becomes more likely that a second crack will follow. A few other tips include performing regular foundation checks, cleaning spouts and gutters, and installing exterior drains if needed. For those living in a hot and arid area, you should water your foundation every other day.

Yes, it is possible to over-dehumidify a house by removing too much moisture from the air. This can create an overly dry environment that negatively affects those with respiratory or skin issues, and may cause your skin, hair, and sinuses to feel dry. However, this is unlikely to happen with most modern dehumidifiers, as they are equipped with moisture sensors and adjustable settings. These features allow the unit to pause automatically when the desired humidity level is reached, preventing the air from becoming uncomfortably dry. In contrast, older or more basic dehumidifiers left running for too long could potentially over-dry the air. To avoid this, aim for a balance between removing excess moisture and maintaining a comfortable environment. You can often monitor your home's humidity levels using a modern thermostat for guidance.

Standing water under your house can threaten its structural integrity. If water pools in your crawl space, it can damage the foundation and the structure above ground, causing wood rot, mold, and other problems. If you have a concrete foundation, standing water under your house can also make your foundation slabs crack.

Yes, water coming up from the floor should be treated as an emergency. If you're unable to either identify or stop the source of the water on your own, contact an emergency plumber right away. In addition to harming your flooring, standing or pooled water can lead to water-damaged concrete.

Make sure you're calling in the right expert to help repair and/or clean your crawl space. A serious issue may require multiple experts that include a local mold remediation pro, an HVAC pro, a foundation pro, and a plumber. You should also consider using a nearby junk removal service to avoid handling debris that could be covered in mold, fungi, rot, or asbestos.

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.