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Best basement waterproofing pros near Sumas, WA

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Top-Rated Basement waterproofing pros in Sumas - Updated Nov 2026

Near Me Roofing Company
5.0(
74
)
Basement Drainage Channels - Repair

Serving Sumas, WA and surrounding areas

Approved

In business since 2012

Free estimates

Credit card accepted

"Excellent service and very thorough with explanation and getting the right. I researched many skylight installation companies and decided to hire Ari and Elijah. I will recommend my colleagues and friends and family. I will absolutely use this roofing company for any roof work on my house."
Response time4 days
Recommended by80%of homeowners
Avatar for MTU Services LLC
MTU Services LLC
5.0(
5
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Sumas, WA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"We’ve had a lot of crews in our home for various projects over the years, and I have to say this was one of the most courteous. They worked hard, navigating through our kitchen to access the basement and I really appreciated their efforts. Thank you MTU, we now have safe walls in our cellar and fresh beams to keep the house standing ;)"
Elevator pit waterproofing and sealing
Piers under an existing home
Piers under an existing homes middle wall
Solutions/Answers
Response time1 day
Response rate100%
4 neighbors recently requested a quote
Avatar for American Concrete N Masonary
American Concrete N Masonary
5.0(
6
)
Basement Drainage Channels - Install

Serving Sumas, WA and surrounding areas

In business since 1990

Free estimates

Emergency services offered

"We had a huge job in our yard that included several aspects of technical work: walls, leveling, patio floors, drainage, irrigation, lighting, conduits, and more. We were very happy with the overall process of getting it done, efficiency of work, and communication. The finished patio looks great!"
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+29

Recommended by100%of homeowners
Form To Function Landscaping LLC
4.4(
16
)
Basement Drainage Channels - Install

Serving Sumas, WA and surrounding areas

In business since 2009

Free estimates

Emergency services offered

"I kind of questioned the cost after they did the job. What they actually did here looks pretty good. I just had surgery that time so I was in bed when they came out. They did it under 40 hours and did good work but they handed me another bill that was triple the price. The labor was okay but within that labor, they planted things for me. I had asked them to make it easy to maintain but they never discussed anything with me. I’m sure they upped the cost for the plants quite a bit. I don’t even know what plants they are. They did put in some bricks and they did a good job on that. I told them that I wanted some grooves leveled out in my yard and I realized afterwards that there were still some tracks in the yard. It was covered by grass but I pointed out where they were."
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Arlington
Camano Island
Bothell

+25

Recommended by86%of homeowners
Showing 1-10 of 16
Basement Waterproofing FAQs, answered by experts

Periodic inspections and addressing drainage issues prevent further damage.

Yes, if your crawl space is prone to humidity, a dehumidifier can help keep it dry. For use in a crawl space, you’ll need a high-capacity and high-efficiency dehumidifier with built-in air filtration. It’s also wise to purchase one with a self-draining feature. Otherwise, you’ll need to climb into the crawl space to empty the dehumidifier.

Access to commercial-grade products and equipment, ensuring thorough coverage and long-lasting protection.

Yes, these services often increase home value by preventing moisture-related issues and enhancing the usable space in basements or crawlspaces.

Installing a bathroom in a basement isn’t a project for most homeowners. Many parts—plumbing, electricity, and carpentry—go into this project, each requiring expert-level knowledge and tools. One miscalculation can lead to very expensive repairs. Plus, some homeowner’s insurance might not pay for damages caused by a homeowner DIYing this project. You can protect yourself by allowing the pros to complete this job for you. 

The Sumas, WA homeowners’ guide to basement waterproofing services

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