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Verified Reviews for Basement Waterproofing pros in Sumas, WA

*The Angi rating for Basement Waterproofing companies in Sumas, WA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.

*The HomeAdvisor rating for Basement Waterproofing companies in Sumas, WA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.

Last update on October 01, 2025

Find Basement waterproofing pros in Sumas

Avatar for John's Waterproofing Co.
John's Waterproofing Co.
4.2(
72
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Sumas, WA and surrounding areas

Approved

In business since 1974

Free estimates

Warranties offered

"John's Waterproofing was the only company to respond. They were prompt, the person reaponding was knowledgeable and explained things in every day language. We will be using this company again."
New Home Encapsulation
SilverGlo Insulation
CleanSpace
SaniDry Dehumidifier
Puddling in Basement

+7

Response time11 hrs
Response rate94%
42 neighbors recently requested a quote
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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

"Couldn't be more pleased with the roof restore that Ari and Elijah did. was courteous and his workmanship is great. very responsive and kept us in the loop. kept us updated, gave comprehensive information prior to the work and the elevated pictures they took afterwards was a nice surprise."
Response time4 days
Recommended by80%of homeowners
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Avatar for Groundworks
Groundworks
4.7(
17
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Sumas, WA and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2006

Free estimates

Emergency services offered

"Punctual and very communicative I am very happy how my project turned out! No more water in my basement!!"
Foundation
Foundation
Foundation
Concrete
Concrete

+15

53 neighbors recently requested a quote
Recommended by64%of homeowners
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Avatar for Hicks Trucking, Inc.
Hicks Trucking, Inc.
4.6(
7
)
Basement Drainage Channels - Install

Serving Sumas, WA and surrounding areas

Approved

In business since 2019

Free estimates

Small jobs welcome

"Very good experience with this customer they solved a major water issue at my home and helped me save my investment, Highly recommended."
Response time1 day
Response rate88%
4 neighbors recently requested a quote
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Avatar for LaVergne Plumbing & Heating
LaVergne Plumbing & Heating
4.5(
11
)
Basement Drainage Channels - Repair

Serving Sumas, WA and surrounding areas

Approved

In business since 1951

Emergency services offered

Warranties offered

"Impressively quick service. Cody was very professional, responsive, and friendly. He explained the process, issue, and resolution. Very happy with this plumber and company."
Well Pump Equip
Frank
Well Pump Truck
Well Pump Service
Meet Frank!

+13

Response time6 hrs
Response rate100%
72 neighbors recently requested a quote
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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!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+29

Recommended by100%of homeowners
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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

"The crew was young, but hard-working.  They came and were respectful and diligent.  They were not able to get as much done as we had hoped with the 40 hours worth of work, but what they did do, was excellent.  They also took away the weeds and other stuff when they were done.  
Unfortunately, the young crew also removed some of my plants in their zeal.  In the end, I figured that it was probably time to replace those plants anyway, so it was ok.
I would recommend this crew for yard work.
"
Additional Photos
Additional Photos
Arlington
Camano Island
Bothell

+25

Recommended by86%of homeowners
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Avatar for Aqueous Solutions Inc
Aqueous Solutions Inc
3.2(
20
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Sumas, WA and surrounding areas

In business since 2002

Free estimates

Credit card accepted

"It was excellent. They performed insulation quickly and efficiently. The cost was in-line with the quote. I was very satisfied with their work and I would use them again. Their price was fair. "
Recommended by87%of homeowners
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Avatar for Hampton Enterprise LLC
Hampton Enterprise LLC
3.7(
9
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Sumas, WA and surrounding areas

In business since 1989

Free estimates

Emergency services offered

"They were good. They were pretty fast and came on time. My overall experience with them has been good."
Additional Photos
Additional Photos
Recommended by60%of homeowners
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Showing 1-10 of 16
Basement Waterproofing questions, answered by experts

Water damage always poses a primary risk of mold and mildew, but growth is not guaranteed. The chances of mold developing depend on several factors, including the severity of the damage and how quickly the area is cleaned and dried. To prevent mold, you must act quickly—ideally within the first 24 hours. Clean up all water and thoroughly dry the affected area. If the damage is extensive, you were unable to address it immediately, or you suspect mold has already started to grow, it is best to assume it is present and hire a professional mold inspector or removal expert to assess the situation.

As the first layer of water protection for your roof deck and the building materials below, underlayment is designed to prevent water damage, so it’s okay if it gets wet. However, you shouldn’t rely solely on underlayment for protection. If rain interrupts your roof project and you have all of the underlayment down, you’ll likely be fine, but you should install shingles over that layer as soon as possible, as long-term exposure can lead to water damage.

No, you don’t want your crawl space to be wet because water and even moisture in the air under your home can attract insects and rodents, decrease your indoor air quality, increase your energy bills, promote mold growth, and even lead to structural damage. If you notice any signs of water or humidity in your crawl space, you should get the issues addressed immediately by contacting a professional. They can remove moisture and will know how to waterproof your basement to prevent ongoing problems.

Crawl space encapsulation typically lasts between 10 to 20 years. If you experience a catastrophic event, like a flood, or poorly encapsulate your space with low-quality materials, it may only last a decade. Otherwise, as long as you properly maintain your crawl space, a high-quality encapsulation can last more than 20 years.

You should always hire a structural engineer or a professional and licensed foundation repair company for crawl space repair. These professionals will often be able to treat the symptoms of the issue as well as the underlying problem so that you don’t have ongoing damage. They’ll also often take preventative measures to stop the issue from recurring in the future.

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.

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