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  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon115
    Verified basement waterproofing services reviews

Verified Reviews for Basement Waterproofing pros in Brier, WA

*The Angi rating for Basement Waterproofing companies in Brier, 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 Brier, 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 May 20, 2026

Find Basement waterproofing pros in Brier

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

Serving Brier, WA and surrounding areas

Approved

In business since 2009

Free estimates

Warranties offered

"Removed old fiberglass insulation that at one time was rodent infested. Removed old plastic ground cover sheeting. Installed new ground cover black plastic sheeting and new fiberglass insulation. This was in the basement crawl space in my 9-unit apartment building. Very satisfied with the work - they were very responsive to some follow up work - would definitely recommend ."
1
2
3
1
2

+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 Brier, 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
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Response time8 hrs
3 neighbors recently requested a quote
Recommended by95%of homeowners
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Avatar for Puget Sound Builders & Renovation
Puget Sound Builders & Renovation
5.0(
1,372
)
Basement Drainage Channels - Install

Serving Brier, WA and surrounding areas

Approved

In business since 2006

Credit card accepted

Customers say: True professional

"We hired Puget Sound B&R for basement remodeling and Dan did a fantastic job managing the project. The crew was hardworking, respectful, and detail-oriented. Our basement now feels like a completely new living space. Great experience from start to finish with outstanding workmanship."
Bathroom Renovation
Basement Remodel
Bathroom Renovation
Basement Remodel
Kitchen Remodeling

+23

9 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 Brier, 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
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+11

Response time10 mins
Response rate100%
34 neighbors recently requested a quote
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Avatar for Iconiq Construction, LLC
Iconiq Construction, LLC
4.9(
31
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Brier, 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%
9 neighbors recently requested a quote
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Avatar for Groundworks
Groundworks
4.7(
17
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Brier, 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

44 neighbors recently requested a quote
Recommended by64%of homeowners
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Avatar for Harts Plumbers, Electricians, & HVAC Technicians
Harts Plumbers, Electricians, & HVAC Technicians
4.6(
1,247
)
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Brier, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2013

Emergency services offered

Warranties offered

"Dylan is a phenomenal guy with exceptional customer service and all around pleasant young man. I would highly recommend him and Harts for any of your plumbing issues. Thanks so much"
Pipe llining
Pipe relining
Pipe relining
Camera inspections
Response time50 mins
Response rate100%
24 neighbors recently requested a quote
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Avatar for Apollo Plumbing
Apollo Plumbing
4.5(
630
)
Basement Drainage Channels - Repair

Serving Brier, WA and surrounding areas

Approved

In business since 2005

Emergency services offered

Credit card accepted

"I used Apollo Plumbing.  They were here in November of 2015.  The cost was $99. "
Additional Photos
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Additional Photos
Additional Photos

+4

12 neighbors recently requested a quote
Recommended by89%of homeowners
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Avatar for SeaTown Electric Heating and Air
SeaTown Electric Heating and Air
4.7(
1,638
)
Basement Drainage Channels - Install

Serving Brier, WA and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"SEA TOWN RESPONDED PROMPTLY AND WAS THE ONLY FIRM ABLE TO RESPOND IMMEDIATELY."
Seattle's Rewire Specialists
Generator
Tesla Chargers
Knob and Tube Removal
Ductless Install

+26

Response time1 day
12 neighbors recently requested a quote
Recommended by93%of homeowners
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Basement Waterproofing questions, answered by experts

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.

The best ventilation for a crawl space is a fully encapsulated crawl space with its own separate ventilation system. If you go this route, ensure you have the proper crawl space code requirements done and dusted before encapsulating your crawl space with a moisture barrier and installing appliances that may not be up to the proper specs.

Ideal humidity conditions generally range from 30% to 50%, with 45% considered optimal humidity for most homes. If your humidity levels drop below that range, you can turn your dehumidifier off. Additionally, suppose the temperature where the dehumidifier is installed falls below 60 degrees Fahrenheit. In that case, it's best to turn it off and unplug it since cooler temperatures can cause the unit's coils to freeze.

A sewage smell in your crawl space is usually from a damaged or clogged pipe leaking sewer gasses or actual sewage underneath your home, but there are some other common causes. Moisture, from poor or damaged encapsulation or a malfunctioning sump pump, can harbor mold and bacteria, causing a musty smell. Pests can also get stuck in your crawl space and die, which causes a sewage-like odor.

It depends on what caused your basement flooding, the extent of the problem, and the risk of the flood continuing. If your flood is coming from a septic system or sewer line, breathing in the sewer gasses can be dangerous, so you should vacate. If the flood occurs from an ongoing natural disaster, relocating to a safe area might be wise. If you just have a plumbing leak or rainwater coming in, you can likely stay in the house if you don’t have electrical lines down there, but make sure you call in professionals to fix the issue immediately.

The Brier, 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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