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Best basement waterproofing pros near Pacific, WA

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TRUSTED BY PACIFIC, WA HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon40
    Verified basement waterproofing services reviews

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

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

Serving Pacific, 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
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+46

Response time5 hrs
Recommended by49%of homeowners
Avatar for TerraFirma
TerraFirma
4.0(
100
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - RepairBasement Drainage Channels - Install

Serving Pacific, 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%
88 neighbors recently requested a quote
Avatar for Andy Construction LLC
Andy Construction LLC
4.9(
30
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Pacific, WA and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"They came in and put plastic on the floor and kept the door closed as as much as possible thus not letting heat out of the house. All the work after went smoothly i.e. quick and neat. Everytime I had a question, Andy stopped and answered every concern we had. He also guaranteed the water clogging wont happen and asked us to contact him on direct line if ever we have a problem. At the end, on request, he also explained to us where and how things work and where the water will go in future. Time was scheduled at 10 am. Andy and his crew came 1.5 hours earlier than the expected time without prior information which caused me to get up and rush to the door half awake. That was the only complain I had."
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Additional Photos
Response time8 hrs
3 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Puget Sound Builders & Renovation
Puget Sound Builders & Renovation
5.0(
1,372
)
Basement Drainage Channels - Install

Serving Pacific, 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

10 neighbors recently requested a quote
Avatar for Wu Construction
Wu Construction
4.6(
238
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Pacific, 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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Additional Photos

+11

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

Serving Pacific, 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
123 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for JP Ramos Construction, LLC DBA Oasis Landscaping & Drainage
JP Ramos Construction, LLC DBA Oasis Landscaping & Drainage
5.0(
9
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Pacific, WA and surrounding areas

Approved

In business since 2002

Free estimates

Credit card accepted

"JP Ramos Construction, LLC DBA Oasis Landscaping & Drainage did an excellent job from start to finish. The concrete driveway installation was completed professionally, efficiently, and with great attention to detail. The crew was reliable, respectful, and kept the work area clean throughout the project. They communicated clearly, answered all of my questions, and made sure everything was done right. I’m very happy with the finished driveway and would definitely recommend JP Ramos Construction / Oasis Landscaping & Drainage to anyone looking for quality work and great customer service."
Commercial Clean-Up
Commercial Clean-Up
Commercial Clean-Up
Commercial Clean-Up
Commercial Clean-Up

+19

1 neighbors recently requested a quote
Recommended by12%of homeowners
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Basement Waterproofing FAQs, answered by experts

A crawl space is an area under the house that provides access to plumbing, electrical, heating ducts, and other HVAC units. Its purpose is to create a buffer between the ground and the living area, helping with ventilation, moisture control, and access for maintenance or repairs. Crawl spaces are most often seen in houses in North America which are built on concrete foundations versus other parts of the world where buildings are constructed differently.

Access to commercial-grade products and equipment, ensuring thorough coverage and long-lasting protection.

There are several small, inexpensive upgrades you can make to upgrade your basement. Although you still need to adhere to building codes and obtain permits when necessary, you can complete small but mighty tasks like painting the masonry walls and installing entertainment devices to make the space more usable. 

Crawl spaces are the more desirable option overall because they provide additional space for storage and utilities, but they are more expensive to install and maintain. Slab foundations are considered a better option in warmer climates where the depth of the frost line isn’t an issue because they’re more affordable, but crawl spaces are better in areas where the frost line is deep or where flooding can be an issue.

If not properly maintained, an underground downspout may damage your home's foundation. A clogged downspout can back up, causing water to pool around the base of your home and seep into the foundation. Regular inspections and maintenance keep your downspout in good working order, preventing damage and protecting your home.

The Pacific, WA homeowners’ guide to basement waterproofing services

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