Top-rated basement waterproofing pros.

Best basement waterproofing pros near Morongo Valley, CA

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Top-Rated Basement waterproofing pros in Morongo Valley - Updated Nov 2026

Avatar for 21st Century Waterproofing
21st Century Waterproofing
4.8(
30
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Morongo Valley, CA and surrounding areas

Approved

In business since 1992

Free estimates

Small jobs welcome

"21st Century Waterproofing is the best waterproofing company in the LA area. William Kleeberg knows his stuff and prices his work fairly. Looked all over for a waterproofing company, checked out many companies and found 21st Century Waterproofing to be No. 1"
Response time1 day
Response rate88%
9 neighbors recently requested a quote
21st Century Waterproofing
4.8(
30
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Morongo Valley, CA and surrounding areas

Approved

In business since 1992

Free estimates

Offers commercial services

At 21st Century Painting and Waterproofing, we offer the best service for your waterproofing needs. We have been in business for over 20 years and have the skill and expertise you need. We look forward to working with you. Give us a call today!

Recommended by92%of homeowners
RSF Construction Inc.
1.0(
1
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Morongo Valley, 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 Morongo Valley, 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 Monarch Concrete Coatings
Monarch Concrete Coatings
4.8(
17
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Morongo Valley, CA and surrounding areas

In business since 1985

Free estimates

Credit card accepted

"We had a second story deck that was leaking water into the garage. We got 4 companies to come and give us a quote.  Two of them were cheaper but they seemed as puzzled as we were about what to do and could not guarantee from future problems. The other company suggested rebuilding the entire deck and was way out of budget. Ryan from Monarch Custom Coatings came with a sample that had several layers to waterproof the deck - we were very impressed that he was very knowledgeable and has a lot of experience with this type of work. He and his crew worked very hard, always professional, prompt, courteous, and our deck looks amazing now. We were so happy with them that we hired them again to redo the garage floors. We have had bad experiences in the past with contractors, so we know that finding a good, reliable, and honest one is very hard and rare. We highly recommend Monarch Custom Coatings!"
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+19

Recommended by93%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 Morongo Valley, CA and surrounding areas

In business since 1949

Free estimates

Emergency services offered

"After the large windstorm we had here in Lancaster, CA my roof suffered some major wind damage. I called them and they set me up with someone to quote us for the job. The price seemed fair and once I had signed the contract they scheduled the repair for the end of the week. The work was done well, and the employees were very professional. I was pleased with their punctuality, and the fact that they cleaned up after themselves. I would recommend Western Pacific Roofing Corp. to all my friends and family. my rof."
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Recommended by100%of homeowners
Avatar for AAP Home Services
AAP Home Services
4.8(
16
)
Basement Drainage Channels - Install

Serving Morongo Valley, CA and surrounding areas

In business since 2008

Free estimates

Emergency services offered

"On Thursday, Cesar gave me an estimate. Since it was a very reasonable price (based on another estimate I got) I decided to call them back Friday morning to schedule and appointment. I was pleased they were able to come that afternoon to install the new water heater. Both Cesar and Dylan were very courteous and professional. They answered all my questions and finished the job in a timely manner. I looked at what they did and it looked good and the water heater is working very well."
Recommended by100%of homeowners
Avatar for Home Value of Fla
Home Value of Fla
4.5(
500
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Morongo Valley, CA and surrounding areas

In business since 1994

Free estimates

Emergency services offered

"We needed to have both bathrooms in a two bedroom condominium remodeled and it was proving quite difficult to find a contractor. The price quotes for the job were very divergent and many, after the initial visit, never submitted a bid or answered our telephone calls which got super frustrating. Finally we got an appointment with Tom and Lucas who showed up on time, even a bit early, went over the job with us, gave an estimate, assured us that everybody working on the jobsite would be properly licensed, bonded, and insured and all permits would be pulled and all inspections would conducted. They impressed us with their youthful energy, sincerity, attention to detail and stating that all work would be up to code. They promised that there would be no unexpected cost overruns and that the job would be done on time. They are not the cheapest, but after talking to a lot of people, and getting a lot of estimates, we understand that bathroom remodeling is simply costly. The job is well towards completion and everything so far has been great and the bathrooms will look fantastic!"
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+140

Recommended by91%of homeowners
Avatar for CXC Contracting
CXC Contracting
4.5(
52
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Morongo Valley, CA and surrounding areas

In business since 1995

Free estimates

Emergency services offered

"Basically, they came, and he wasn't really able to do anything for us so it was a waste of money. He just kind of looked around and said, "Hmm... No. We can't do anything." We were leaking in the garage and there are several spots in our house where there are large cracks and we wanted to make sure what was going on, and he didn't do anything. He just kind of, "Well, you could replace all of this stuff and that'll be like $5,000" and I was like "You got to be kidding me." We had somebody else come out, too. I don't feel like he did anything wrong so I didn't want to post a negative post, but there wasn't also like anything positive out of it, and it felt like a giant waste of my money. But again he didn't actually give us any information other than "By the way, you have cracks in the ceiling that I could say like $5,000" which I haven't even asked him about. I think he should have been more communicative. He could've been more helpful, maybe. I didn't want to post a rating on this because it's kind of complex. He did the job, but it was not helpful. I guess, he did fine for price. I think he was on time."
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Recommended by85%of homeowners
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Basement Waterproofing FAQs, answered by experts

If there is standing liquid on your concrete, remove it before attempting any of the above cleaning methods. For small amounts of water, use rags, a bucket, and a mop. For larger areas of liquid, lay down cat litter or baking soda to soak up the water first. If you have extremely large pools of water sitting on your concrete, break out the wet vac and get to work.

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.

Yes, cleaning a crawl space is worth the cost. Although it's an out-of-sight area, neglecting it can lead to significant problems like pest infestations (including termites and carpenter ants), mold, and fungal growth, which can cause structural damage. Regular cleaning helps prevent these issues. While hiring a contractor has ongoing costs, the price for cleaning—typically between $0.50 and $4 per square foot—is much lower than the cost to remediate a pest or mold problem. Additionally, a clean crawl space can lead to improved indoor air quality and more comfortable temperatures in your home.

Pooling or standing water in your basement should be cause for alarm and action. This indicates that there is a leak or a drainage issue, and until you repair the root of the problem, the situation will only happen again or grow in severity. It’s important to deal with water damage as soon as it occurs.

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 Morongo Valley, CA homeowners’ guide to basement waterproofing services

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