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%
86 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 Groundworks
Groundworks
4.3(
314
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - RepairBasement Drainage Channels - Install

Serving Steilacoom, WA and surrounding areas

Approved (Corporate)

In business since 1995

Free estimates

Emergency services offered

"Had Groundworks install a drainage system and sump pump in our home’s crawl space. Anthony and his crew, Jordon, Uriel, and James were Outstanding. It was a three day job. They were on time every day and worked their tails off each day. It was a muddy job in cramped quarters. They never complained. Anthony kept me updated on the progress they made each day. Anthony shared pictures of the job as it progressed. They cleaned up the job site each day. Anthony went over all the details at the completion of the job and answered all of my questions. The whole process was Great. From the initial inspection done by Kristy to the office staff and the installation. The communication was also Great. I highly recommend Groundworks for a complete and thorough job."
Foundation
Foundation
Foundation
Concrete
Concrete

+16

Response time2 days
122 neighbors recently requested a quote
Recommended by83%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
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
1 neighbors recently requested a quote
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

A serious general contractor for full-scope projects across the South Sound — siding, decks, fences, bathroom remodels, concrete, demolition, doors and windows, drywall and flooring, and full commercial property improvements. Residential and commercial. Licensed, bonded, and insured in Washington.

Project Photos
3 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

4 neighbors recently requested a quote
Recommended by60%of homeowners
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Basement Waterproofing FAQs, answered by experts

A vapor barrier can last over 20 years, but they are vulnerable to pests, flooding, and other natural disasters. If your home weathers a storm or is treated for any pest infestation, make sure to have a drywall pro come check the integrity of your vapor barrier. It’s also important to have a pro install a vapor barrier since improper installation can lead to tears or leaks in the barrier that shorten its lifespan.

If you decide to fill the space around your home’s foundation with landscaping materials, it’s important to consider the aesthetic as well as technical factors like drainage and protection from pests and the elements. Materials such as gravel, rubber mulch, concrete, and brick masonry are all good options.

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.

Yes, water coming up from the floor should be treated as an emergency. If you're unable to either identify or stop the source of the water on your own, contact an emergency plumber right away. In addition to harming your flooring, standing or pooled water can lead to water-damaged concrete.

Generally, moisture barrier padding costs $0.75 to $1.50 per square foot, varying by brand and mix. That’s a lot more than standard padding, which runs $0.25 to $0.90 per square foot. The price difference between these two options might seem steep, but think of it as insurance against future carpet replacement costs and subfloor damage. If you have pets or kids, that extra investment in high-risk areas like your living room often pays off.

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.