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Verified Reviews for Basement Waterproofing pros in Covington, WA

*The Angi rating for Basement Waterproofing companies in Covington, 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 Covington, 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 February 26, 2026

Find Basement waterproofing pros in Covington

Avatar for Insulation Co., LLC - Removal & Clean Outs
Insulation Co., LLC - Removal & Clean Outs
4.9(
226
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Covington, WA and surrounding areas

Approved

In business since 2009

Free estimates

Warranties offered

"I contacted a few companies for quotes and Insulation Co was local to Edmonds, so I engaged them. Jo provided a fast quote over email, which I found odd as the other guys made an effort to come out and view the job and obviously high pressure sell you.... The quote was inline and lower than other guys, so based on that and the great reviews they had, I went with it. Other companies had as many 1 star reviews as 5 star and that was a deal breaker. Jo has almost all 5 Star reviews...The team was able to schedule a time within a week and did all the work while we were out of town. I'm very happy with the results. Did a crawl space insulation, vapor barrier, all the AC duct work and even the adjoining wall to the basement, which I didn't expect. Were in and out in half a day, all cleaned up and professional. House floors are noticeably warmer. Highly recommend this local small business."
1
2
3
1
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+46

Response time5 hrs
Recommended by49%of homeowners
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Avatar for Andy Construction LLC
Andy Construction LLC
4.9(
30
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Covington, WA and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"I called Andy after discovering a basement leak. Andy after a few photos immediately knew the source and with some phone guidance we were able to solve the problem. He even refused my offer to pay"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Response time8 hrs
3 neighbors recently requested a quote
Recommended by95%of homeowners
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Avatar for TerraFirma
TerraFirma
4.0(
99
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - RepairBasement Drainage Channels - Install

Serving Covington, WA and surrounding areas

Approved

In business since 2005

Free estimates

Warranties offered

"Had a sump pump installed. Haven’t had a repeat of the problem."
A System Design Specialist helping a homeowner
Encapsulating a crawl space
Fleet of vehicles in our Portland, Oregon locatio
Loading up our truck for a piering job
Loading up a truck for a waterproofing job

+33

Response time2 hrs
Response rate100%
97 neighbors recently requested a quote
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Avatar for Wu Construction
Wu Construction
4.6(
238
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Covington, WA and surrounding areas

Approved

In business since 1983

Free estimates

Emergency services offered

"Greg and his team were wonderful to work with from the start. It's going to improve our house and our life to stop having water in the basement everytime it rains. We can finish our basement and actually use the space now! Thanks for being so easy to work with and delivering a quality drain system."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+11

Response time10 mins
Response rate100%
44 neighbors recently requested a quote
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Avatar for Groundworks
Groundworks
4.3(
314
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Covington, WA and surrounding areas

Approved (Corporate)

In business since 1995

Free estimates

Emergency services offered

"They made my cracked driveway look like new. With the stabilizing they did, itâ ll last another 100 years! Very happy with my basement also!"
Foundation
Foundation
Foundation
Concrete
Concrete

+16

Response time2 days
195 neighbors recently requested a quote
Recommended by83%of homeowners
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Avatar for Harts Plumbers, Electricians, & HVAC Technicians
Harts Plumbers, Electricians, & HVAC Technicians
4.6(
1,457
)
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Covington, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2013

Emergency services offered

Warranties offered

"Provided a very timely, professional, and caring assessment of water damage assessment with estimate repair costs. Thank you and looking forward to further use of Harts services."
Prep Area
Waterfall Finished!
Excavation jobs and more!
install grease trap for commercial kitchen
Delivery of Shoring

+334

83 neighbors recently requested a quote
Recommended by87%of homeowners
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Avatar for Iconiq Construction, LLC
Iconiq Construction, LLC
4.9(
31
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Covington, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Warranties offered

"Iconiq Construction Service did an amazing job finishing our basement. The team was professional, efficient, and detail-oriented. The results were outstanding, creating a functional and beautiful space. Highly recommend their services!"
kitchen remodel
Kitchen remodel
addition project
bathroom remodel
bathroom remodel

+2

Response time1 day
Response rate94%
5 neighbors recently requested a quote
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Avatar for Harts Plumbers, Electricians, & HVAC Technicians
Harts Plumbers, Electricians, & HVAC Technicians
4.6(
1,040
)
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Covington, WA and surrounding areas

Approved

In business since 2013

Emergency services offered

Warranties offered

"Workers were curtious and protectef my carpets. Water was only off for a short time. Had a couple problems and they came the same day I called. l"
Before the Extension
After Extension
Recommended by92%of homeowners
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Showing 1-10 of 158
Basement Waterproofing questions, answered by experts

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, 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.

To maintain an outdoor structure, perform regular inspections for damage, leaks, and weak joints. Clean the structure regularly, treat or repaint wood surfaces for weather resistance, and reinforce any weak joints to prevent deterioration and ensure its longevity.

You should take care of any sign of water in your basement, whether it’s dampness after heavy rain or puddles of water on the floor. Besides potentially causing a health hazard, the moisture can damage your home’s structure and foundation. Furthermore, mold can grow quickly and spread throughout the rest of your home. With mold remediation costs ranging between $1,200 and $3,400, it’s best to avoid mold issues by fixing the leak.

Regular inspections, proper drainage management, and ensuring soil stability help prevent future settlement issues.

The Covington, WA homeowners’ guide to basement waterproofing services

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

See all articles