Top-rated basement waterproofing pros.

Best basement waterproofing pros near Ben Lomond, CA

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Top-Rated Basement waterproofing pros in Ben Lomond - Updated Nov 2026

David Allen Plumbing
3.9(
8
)
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Ben Lomond, CA and surrounding areas

Approved

In business since 1997

Free estimates

Warranties offered

"After receiving a ridiculous bid from another plumber, I thought my old house was doomed to suffer another of my own bad repairs. David Allen saved me from that fate. Really great person and those he works with. Now he is saving the neighbor!"
Response time6 hrs
Response rate92%
2 neighbors recently requested a quote
Palm Construction, Inc.
5.0(
90
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Ben Lomond, 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
Vargas Landscaping
4.7(
48
)
Basement Drainage Channels - Install

Serving Ben Lomond, CA and surrounding areas

In business since 1999

Free estimates

Emergency services offered

"He was available by phone, and was flexible in scheduling meetings which is great. He was professional, and seemed quite knowledgable. In the end, I didn't use Nato's services because his quote was twice as much as the other contractor I was considering. Perhaps his prices may be more competitive in other services he offers. Either way, working with this company was a pleasant experience."
Recommended by95%of homeowners
US Trenchless
4.9(
8
)
Basement Drainage Channels - Install

Serving Ben Lomond, CA and surrounding areas

In business since 2008

Free estimates

Emergency services offered

"They were okay. I had an upstairs bathtub and it was leaking a lot and they fixed it. They put a steel mesh around the tub so that the rodents couldn't get to it. He went above and beyond. I am satisfied with his work. He is very communicative, explains things, tells you what he did and what he found."
Recommended by100%of homeowners
Avatar for About Green Land Care
About Green Land Care
4.6(
320
)
Basement Drainage Channels - Install

Serving Ben Lomond, CA and surrounding areas

In business since 1997

Free estimates

Emergency services offered

"I have used About Green twice in the past 3 years. Our backyard has a lot of trees and very tall tree-type hedges. Since it was a major part of the reason we bought the home, we want to maintain the health of the landscaping back there. Vince and his team scaled and thinned/trimmed a couple very tall redwood trees, removed an unhealthy leaning tree and trimmed/maintained many other trees on our property. Vince is a pleasure to work with and very friendly. He is extremely knowledgeable in all of the trees that we have and suggests what service to do on each type of tree based on his knowledge of each. He explains it very clearly to us who don't know much about the subject. His work is quality and his goal is 100% customer satisfaction. On this last visit, they spent a few hours trimming a tree-type hedge and when I came home from work, I wanted it around 3 feet lower. Even though it meant repeating the work for a few hours, Vince did it without any argument. To me, that was a true test of customer satisfaction. They complete the work in a timely manner, over a 2 day period. They cleaned up the yard like new and disposed of a ton of trimmings (never seen so much in my life). I never even consider another tree service besides About Green. I plan to have him come out after summer to suggest some landscaping ideas as I haven't used him for that before.."
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Recommended by92%of homeowners
Avatar for CLEAN CRAWLSPACE INC
CLEAN CRAWLSPACE INC
4.7(
14
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Ben Lomond, CA and surrounding areas

In business since 2003

Free estimates

Credit card accepted

"So far, I've been really happy with them. It's one of those things where time will have to tell if it solved the problem. They were good. They did everything they said they're going to do. I would recommend them. This one charged significantly less for the same job. They charged $2000 for the same job the other company would charge $3000. They're better on pricing and they're fully professional."
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+16

Recommended by100%of homeowners
Avatar for Freedom Underground Plumbing
Freedom Underground Plumbing
5.0(
5
)
Basement Drainage Channels - Install

Serving Ben Lomond, CA and surrounding areas

In business since 2014

Free estimates

Emergency services offered

"Freddy was excellent to deal with. Professional, proud of his workmanship, and strives to satisfy the customer. His estimate was actually less than I had from other plumbers but I was most impressed with was the quality of his work. He at first planned to replace the line using the trench-less technique but after finding the soil soft from the rains, decided to do minimum digging and punching through a hard copper line. He also placed a sleeve on the copper pipe to protect it from corrosion and extend the use life. His crew was great and protected our foliage from damage. He installed it up to code with a 6 ft grounding rod. An estimate from another plumber told me I had to get an electrician to install the ground. It passed city inspection first round and after he filled in the trench and completed the cleanup our front yard and foliage looked just as good as before the job. I do a lot of my own home repair but I could not have done a better job. Highly recommend you call him for an estimate."
Installation of new water line from the water meter to the house
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+16

Recommended by100%of homeowners
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Basement Waterproofing FAQs, answered by experts

Yes. Water can penetrate through a concrete foundation wall. This can happen whether or not you have cracks, as concrete is a porous material. You’ll want to take steps to waterproof your basement or crawl space.

Yes, you can finish a basement that leaks, as long as you address the leak first. Before finishing a basement, you’ll need to repair any cracks in the walls and waterproof the basement to prevent future leaks. It’s much harder to clean up a water leak from a finished basement than an unfinished one, so preemptively addressing any leaking areas prevents expensive repairs in the future.

The best basement waterproofing method depends on the specific issue causing the water intrusion. For minor problems, simple solutions like installing a properly functioning gutter system to direct runoff away and grading the soil to slope away from your foundation can be effective.

If you have more significant water problems, the solution will need to be more robust:

  • For standing water on the basement floor, a floor drain or a sump pump system may be the best solution.

  • For water pooling around the foundation, installing an exterior French drain can intercept water before it reaches the basement walls.

Other effective waterproofing methods, which can be used depending on your home's specific needs, climate, and soil type, include sealing the interior walls, landscape alteration, installing interior drainage systems, and using a dehumidification system to control moisture levels.

Yes, usually you will need some kind of vapor barrier on the exterior walls when the framing is attached to concrete and masonry surfaces.

If you notice standing water under the deck after rainstorms, you may need a drainage system to efficiently move this water. You do not want standing water to rest against your foundation or against support posts for the deck, as this could cause significant structural problems over time. Make sure the area has proper grading, too.

The Ben Lomond, CA homeowners’ guide to basement waterproofing services

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