Top-rated basement waterproofing pros.

Best basement waterproofing pros near Steilacoom, WA

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

Avatar for TerraFirma
TerraFirma
4.0(
100
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - RepairBasement Drainage Channels - Install

Serving Steilacoom, WA and surrounding areas

Approved

In business since 2005

Free estimates

Warranties offered

"Had huge foundation problems at a project of mine on the waterfront. We used terrafirma to both waterproof the entire basement AND lift the foundation. 10/10 would recommend. extremely communicative, very knowledgeable, and even brought a crew in from Oregon to help us stay on schedule. Oscar and jorge got the job done extremely quickly and Seth was fantastic as my project manager."
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%
79 neighbors recently requested a quote
Avatar for Puget Sound Builders & Renovation
Puget Sound Builders & Renovation
5.0(
1,372
)
Basement Drainage Channels - Install

Serving Steilacoom, 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

6 neighbors recently requested a quote
Near Me Roofing Company
5.0(
74
)
Basement Drainage Channels - Repair

Serving Steilacoom, WA and surrounding areas

Approved

In business since 2012

Free estimates

Credit card accepted

"We had Near Me Roofing Company re-shingle my 2 story house. The crew was professional , clean and on time. On our first day, it started to rain and they were happy to re-schedule to another day of the week. We were very satisfied with the finished product and would recommend them."
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 Steilacoom, 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 Harts Plumbers, Electricians, & HVAC Technicians
Harts Plumbers, Electricians, & HVAC Technicians
4.6(
1,469
)
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Steilacoom, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2013

Emergency services offered

Warranties offered

"This company is so professional and kind. Anthony, the rep who came to do the estimate on a basement kitchen sink and shower installation was so knowledgeable. and patient, My elderly mother has moved in and is making our finished basement her new home, he addressed all her concerns and helped to make some smart choices. Lexi, the phone coordinator was lovely as well."
Prep Area
Waterfall Finished!
Excavation jobs and more!
 install grease trap for commercial kitchen
Delivery of Shoring

+334

40 neighbors recently requested a quote
Recommended by86%of homeowners
Triton Excavation INC
4.6(
41
)
Basement Drainage Channels - Install

Serving Steilacoom, WA and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"A-Plus did a fantastic job in demolishing the concrete around my pool, breaking up the pool, placing the concrete chunks in the pool, and filling and compacting the fill dirt. Suzanne provided timely and clear communication throughout the project and left my back yard in perfect condition. I would absolutely hire A Plus again to do work for me."
Response time2 days
Recommended by100%of homeowners
Avatar for 4 Seasons Solutions LLC
4 Seasons Solutions LLC
4.7(
15
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Steilacoom, WA and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

Family-owned and operated, with over 30 years of combined construction experience, we are a full-service general contracting company serving the South Sound and greater Pacific Northwest. We specialize in residential and commercial projects of all sizes, from smaller repairs to large-scale renovations and complete property improvements.\n\nOur services include siding, decks, fences, bathroom remodels, concrete, demolition, doors and windows, drywall, flooring, gutters, pressure washing, roofing, and interior and exterior painting.\n\nWe are committed to quality workmanship, dependable service, honest communication, and doing the job right the first time. Whether your project involves one trade or a complete renovation, we have the experience and resources to manage it from start to finish.\n\nNo project is too small or too large. Licensed, Bonded & Insured.

Project Photos
1 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Diversified Crawlspace Servs
Diversified Crawlspace Servs
3.9(
25
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Steilacoom, WA and surrounding areas

Approved

In business since 1992

Free estimates

Emergency services offered

"We had a foot of water in our crawl space after the snow and 6 in. of rain from the December 2021 storms. I had called several companies to come out to take a look and give quotes. Ethan from diversified was the 3rd quote we received. Ethan explained the issue, explained what they would do to remedy it, and answered all my questions. He sent me the quote which was very resonable. BE SURE TO GET SEVERAL QUOTES. ONE COMPANY QUOTED US DOUBLE OF WHAT WE PAID DIVERSIFIED. They were able to get a team out two days later. The team was on time, professional, and did really good work. We ended up needing a sump pump due to ground water coming up. They applied a mold application and completed the work in a day. I highly recommend these guys and did my research prior to having them do the work. I am very impressed and happy we chose them."
crawlspace drainage
crawlspace drainage
crawlspace drainage
crawlspace drainage
crawlspace drainage

+18

Recommended by60%of homeowners
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Basement Waterproofing FAQs, answered by experts

Yes, water and water vapor can seep through cracks in your basement floor, which means you should address all basement floor cracks, even if they don’t indicate structural issues. Sealing settling cracks and shrinkage cracks is a good idea to keep water and moisture outside where it belongs. Doing so can improve your indoor air quality, reduce the risk of mold growth, make your home more comfortable, and help prevent pest infestation.

Yes, you can add a bathroom to an unfinished basement, but you’ll want to take proper precautions if doing so. As with any bathroom addition, you’ll need to make sure that it’s approved by local building authorities first. With unfinished basements, you especially need to keep an eye on proper ventilation practices.

Home improvement grants are available for various groups, including individuals with very low-income housing, elderly people, older adults, and veterans. These grants can cover a range of needs, from accessibility modifications to addressing critical issues that may affect a resident's health or safety.

Many prevention methods can be used individually or in combination to waterproof your basement. Some of the most common waterproofing methods include:

  • Using dehumidifiers 

  • Silicate concrete sealers

  • Vapor barriers 

  • Baseboard channels 

  • Drain tile systems

  • Waterproofing paint

  • Drainage systems

  • Epoxy injection

  • Interior French drains

  • Exterior excavation and waterproofing

  • Cement waterproofing

  • Weep tiles

  • Liquid membrane

  • Sheet membrane 

  • Yard grading

  • Gutters and downspouts

Several factors can impact the cost of waterproofing your basement. Some of the most common cost factors include:

  • Location

  • Square footage

  • Cause of the water leak

  • Type of foundation

  • Accessibility

  • Waterproofing method

  • Materials

  • Contractor experience and availability

  • Engineering reports, if needed

  • Structural and other repairs

  • Permits

The Steilacoom, WA homeowners’ guide to basement waterproofing services

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