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Best basement waterproofing pros near Frederickson, WA

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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon20
    Verified basement waterproofing services reviews

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

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

Serving Frederickson, 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 Puget Sound Builders & Renovation
Puget Sound Builders & Renovation
5.0(
1,372
)
Basement Drainage Channels - Install

Serving Frederickson, WA and surrounding areas

Approved

In business since 2006

Credit card accepted

Customers say: True professional

"This basement remodel by Puget Sound BNR transformed an underused area into a beautiful and practical living space. From improved flooring and lighting to a fresh modern design, every detail added comfort and value. The finished basement now serves as a versatile area for relaxing, entertaining, or spending quality family time."
Bathroom Renovation
Basement Remodel
Bathroom Renovation
Basement Remodel
Kitchen Remodeling

+23

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

Serving Frederickson, 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 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 Frederickson, 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
Avatar for Harts Plumbers, Electricians, & HVAC Technicians
Harts Plumbers, Electricians, & HVAC Technicians
4.6(
1,463
)
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Frederickson, 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

42 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for BUILDING PERFORMANCE PROS LLC
BUILDING PERFORMANCE PROS LLC
4.5(
8
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Frederickson, WA and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"The workers were on time. Very efficient. They did a blower door test and found the air leaks and insulated these areas. Blew installation above the garage, cleaned out the crawl space and put new installation there and basement. Found a water leak from my toilet,Thank goodness. Covered everything in the basement and swept and cleaned up after. I would recommend them!"
Response time2 days
6 neighbors recently requested a quote
Avatar for KLC EXCAVATING LLC
KLC EXCAVATING LLC
5.0(
6
)
Basement Drainage Channels - Install

Serving Frederickson, WA and surrounding areas

Approved

Free estimates

Credit card accepted

Offers commercial services

"Great company to work with. He was professional, reliable, and communicated well throughout the project. The work was finished on time, and the quality was better than I expected. I’d definitely recommend him to anyone needing excavation or landscaping work, and I would happily use him again in the future."
Stump Removal
Stump Removal
Stump Removal
Stump Removal
1 neighbors recently requested a quote
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Basement Waterproofing FAQs, answered by experts

Most people consider a French drain to be one of the most effective solutions for foundation leaks, but it’s not always a standalone solution. French drains will help keep water away from your foundation to reduce the risk of leaking and structural damage from soil expansion, but depending on your foundation type and location, you might need other systems or techniques—like soil gradation and gutter and leader installation—to resolve the underlying problem.

Several types of insulation are effective for crawl spaces, with spray foam and rigid foam boards being two of the best options. Closed-cell spray foam insulation is a strong choice because it effectively repels moisture, resists biological growth, seals the air, and provides excellent thermal protection, especially in hard-to-reach areas. Rigid foam insulation boards are another excellent material as they insulate well, resist water damage, and will not settle over time like fiberglass or cellulose.

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.

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.

The most challenging part of finishing a basement is addressing moisture control. Basement waterproofing is an essential task that requires a professional’s skills and knowledge. If you don’t properly waterproof your finished basement, it’ll be vulnerable to dampness, water damage, and mold growth. Ensuring proper insulation and ventilation to combat these issues while meeting building codes adds complexity to your remodeling project.

The Frederickson, WA homeowners’ guide to basement waterproofing services

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