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Got a wet basement? Musty odors? Protect your home with our proven solutions & lifetime warranty.

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Zip code: 20149

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3 Pros Basement Systems

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  • Concealed drainage system
  • Powerful, reliable sump pumps
  • Battery backup systems
  • Patented waterproofing products
  • Energy-efficient dehumidifiers
  • Industry-leading warranties

Basement Waterproofing Companies In Washington

4137 E. 3rd Avenue
Post Falls, ID 83854
NW Idaho: including Pinehurst, Coeur d'Alene and Sandpoint.
NW Washington: including Spokane, Cheney and Furport.
View company profile for reviews, awards, before & after photos, and more.
18931 59th Ave NE
Arlington, WA 98223
NW Washington: including Everett, Mt. Vernon, and Bellingham.
View company profile for reviews, awards, before & after photos, and more.
5883 State HWY 303 NE Suite 101
Bremerton, WA 98311
NW Washington: including Raymond, Shelton, and Forks.
View company profile for reviews, awards, before & after photos, and more.
761 NE Garden Valley Blvd.
Roseburg, OR 97470
13110 SW Wall St
Portland, OR 97223
10111 S Tacoma Way D5
Tacoma, WA 98499
2001 NE 117th ST
Vancouver, WA 98686
Southern and NW Oregon: including Medford and Roseburg.
SW Washington: including Tacoma, Olympia and Kent.
View company profile for reviews, awards, before & after photos, and more.

Each of the companies listed here is an authorized Basement Systems dealer in Washington offering expert basement waterproofing services including drainage and sump pump installation. In each company profile, you can read reviews and check out the contractor’s history, service area, ratings, and more.

Choosing a Reliable Waterproofing Company for Your Washington Basement

Having a wet basement is not fun to deal with. The risk of property damage and costly repairs all add to the stress of dealing with a damp basement. If you are suffering from constant worry about the health and safety of your basement, it’s time for a change.

Unlike other home improvement tasks, basement waterproofing isn’t a DIY project. An experienced, licensed basement waterproofer is equipped to properly diagnose basement issues. Whether it be pooling water, gaps in your foundation, leaky basement windows, or high humidity levels, a professional basement waterproofer will be able to detect such issues and provide a long-lasting solution. Don’t wait until your basement becomes a breeding ground for mold, pests, and other hazardous conditions. Contact your local Washington basement waterproofer today.

Look for expertise, training, and experience.

By choosing a basement waterproofer in the Basement Systems network, you’re getting a local company dedicated to the best waterproofing practices. Each contractor listed here is trained in the diagnosis of sub-grade moisture problems as well as the design and installation of proper drainage, moisture and humidity control, and basement materials. All Basement Systems contractors are licenced and certified to fix wet, damp basements and crawl spaces. You can assure your wet basement issues are a thing of the past with this kind of expert service! 

Demand high-quality basement waterproofing products.

Since 1987, Basement Systems has set the industry standard for dry basements. Your Washington Basement Systems dealer has exclusive access to 27 patented products that have helped homeowners over the past 30 years keep their basements dry. Such solutions include our WaterGuard basement drainage system,  UltraSump industrial-strength sump pump, and our SaniDry Sedona Basement Dehumidifier.

Other basement waterproofing products include basement wall and floor treatments, window wells, and basement window replacements. Browse the full line of basement waterproofing products.

Why Do Washington Basements & Crawl Spaces Get Wet?

Flooded basement: When it comes to precipitation, the state of Washington has some of the rainiest regions in the world. Seattle, for example, has a reputation for frequent rain, with an average of more than 150 rainy days. This can easily lead to flooding. When flooding hits your area, your basement is most likely to be the prime target for water damage.

Other wet basement signs: There are many possible sources for pooling water, damp basement walls or flooring, and high humidity. These include: rusty basement windows, poor grading around the foundation, leaks through cracks in the foundation, saturated soils, simple plumbing failures, and poorly functioning drainage or sump pump systems. A basement already musty and damp is ill-prepared for the next bad rainstorm! Basement waterproofing can address the underlying issues, prevent future water damage and improve the indoor air quality.

Basement Waterproofing & Crawl Space Repair

Waterproof your wet basement today! Basement Systems experts in the Washington area have helped homeowners for decades with their basement water issues. From identifying the source of leaks, flooding, groundwater seepage, and musty odors, our wide range of waterproofing and moisture control solutions have helped homes in Washington stay healthy and dry even in the toughest of storms. 

Wet Basement Solutions:
  • Basement Waterproofing
  • Crawl Space Encapsulation
  • Leak Basement Window Repairs
  • Exclusive Drainage & Moisture-Control Products
  • Industrial-Strength Sump Pumps 
  • Energy-Efficient Self-Draining Dehumidifier    
Dry Basement and Crawl Space Benefits:
  • Usable Basement or Crawl Space
  • Healthier Indoor Air
  • Mold, Dust, and Pest Reduction
  • Lifetime Transferable Warranty
  • Home Value Protected
  • Peace of Mind When It Rains!

Next Steps to a Safe, Dry Basement in Your Washington Home.

Basement Systems products address every major basement or crawl space problem, including moisture intrusion, flooding, leaky windows, structural rot, and excessive humidity. The best basement waterproofers for your Washington home are those who can diagnose the source of the problem and have the training, expertise and experience to design and install an effective system that keeps your basement dry.

1) Read Reviews & Check Out Past Work

Spend your time reading through the reviews of the basement waterproofing companies listed here. Check out their profiles that highlight their work (before and after photos), awards, and experience.

2) Get inspections and cost quotes

Call or fill out the Free Estimate form to set up an inspection of your basement. When you choose Basement Systems authorized contractor, you’ll get a free book on how basements are constructed and why they get wet, a custom design solution, and written estimate at no charge.

3) Choose Your Contractor & Enjoy the Result!

Choose a basement waterproofer based on the proposed solution, quality of materials, reputation of the contractor, and the price. Remember you only want to waterproof your basement once! After the work is completed, enjoy your dry basement for storage, finishing, laundry, and entertainment.

Washington's Trusted Waterproofing Companies

  • "Taking back our garage to house cars!" Read Full Testimonial

    Larry K. of Kitsap County, WA

    Customer Testimonial

              One of the things we liked about our house was the ability to store items in the crawl space, thus freeing up the garage to do what it's supposed to do - house cars. In order to do so, we needed to replace the worn plastic and musty smell. Seeing an advertisement for CleanSpace, I contacted them shortly after purchasing the home. The representative was fantastic in understanding our desires and explaining our options. He took the time to explain the CleanSpace system, how it would be installed, and what we should expect from it in the future. We had the system installed and we are quite happy we did. First, it eliminated the musky smell and any potential for mold. Second, it provided ample storage space for us putting boxes, furniture, etc. in our crawl space. Even though the material seems thin, it is rugged and durable to handle walking on it, and stacking heavy materials such as boxes, pieces of wood, etc. Third, we had an issue with the dehumidifier being too noisy but the technicians returned several times to provide a quieter solution. It was achieved and after almost eight months in operation, we don't hear it. Fourth, the installation staff was exceptionally professional and removed unwanted debris from underneath the house. I would wholeheartedly recommend the CleanSpace system to anyone regardless if it is a new home or one that has seen the test of time and Washington weather. They system works.
    Larry K.
    Kitsap County, WA
  • "Your whole team was always polite, helpful, and professional. I am very pleased with the completed job and..." Read Full Testimonial

    Joanna K. of Idaho, ID

    Customer Testimonial

              Your whole team was always polite, helpful, and professional. I am very pleased with the completed job and will always highly recommend your company.
    Joanna K.
    Idaho, ID
  • "Thank you for the job you did. It was handled in a very professional manner." Read Full Testimonial

    Charlene H. of North Idaho, ID

    Customer Testimonial

              Thank you for the job you did. It was handled in a very professional manner.
    Charlene H.
    North Idaho, ID
  • "Our lake home leaked so badly, I cried every time it rained. We had inches of water in the basement. My..." Read Full Testimonial

    Cathy G. of Tiger Lake, WA

    Customer Testimonial

              Our lake home leaked so badly, I cried every time it rained. We had inches of water in the basement. My stepson, a civil engineer, said we should call CleanSpace NW. The crew from CleanSpace NW was prompt and finished on time, saving us from abandoning half of our home, by fixing the water problem. Every time there is a hard rain, I run downstairs to check and it's dry! CleanSpace NW is the only way to go!
    Cathy G.
    Tiger Lake, WA

Have Basement Systems solve your basement or crawl space water problem. From the Coastal Region to the Puget Sound Lowlands, Cascade Mountains to Okanogan Highlands and Columbia Plateau, your local Washington basement experts will be happy to help transform your wet, leaky or humid basement into a usable, dry, healthier space today! 

Improve your home starting with a free basement inspection and estimate!

You wouldn’t call a plumber to reroof your house. Don’t call a handyman to fix a wet basement. Call in the specialists who have been revolutionizing basement waterproofing since 1987. Basement Systems and its network of dealers have solved wet basement problems for hundreds of thousands of homeowners throughout the United States, Canada, the United Kingdom, and Ireland. As a Basement Systems dealer, we offer a system that consists of patented products and proven techniques that aren't available to other contractors or handymen. Allow us to show you why it’s the leading waterproofing system in the world. Whether you simply want to use your basement for storage and a laundry, or are planning to convert it to living space, the first priority is to make sure it’s dry. We can help. 

Customer Reviews
  • By Ronan F.
    "Our experience with TerraFirma was great from beginning to end. They were..."

    Customer Review

    By Ronan F.

    Our experience with TerraFirma was great from beginning to end. They were very fast, efficient, clean and courteous. We had the crawlspace encapsulated and our whole house smells and feel better. No more mold and bowed floorboards. And they were cheaper than the competitors.
  • By Joyce M.
    Salem, OR
    "Overall very professional, customer oriented, clear in explanations of..."

    Customer Review

    By Joyce M.
    Salem, OR

    Overall very professional, customer oriented, clear in explanations of what is needed. Both salesperson and crew were very pleasant and easy to communicate with.
  • By Judith &.
    Dallas, OR
    "Just improve the communication between the front office and the customer"

    Customer Review

    By Judith &.
    Dallas, OR

    Just improve the communication between the front office and the customer
  • By Tom G.
    Anacortes, WA
    "Dan did a great job explaining the system along with the different..."

    Customer Review

    By Tom G.
    Anacortes, WA

    Dan did a great job explaining the system along with the different options. We knew right upfront what the final price would be so there were no surprises.  
  • By Cathy S.
    Coeur D'Alene, ID
    "The dry-wall crew was great also! Everyone was very clean and..."

    Customer Review

    By Cathy S.
    Coeur D'Alene, ID

    The dry-wall crew was great also! Everyone was very clean and professional. This is actually my daughters house and she is very picky. She is very happy with the results!
  • By Lynn
    Coeur D Alene, ID
    "I am well pleased with the work your company provided."

    Customer Review

    By Lynn
    Coeur D Alene, ID

    I am well pleased with the work your company provided.
  • By Barbara N.
    Post Falls, ID
    "I needed the project to wrap up by 5:30 p.m., at the very latest. They ran..."

    Customer Review

    By Barbara N.
    Post Falls, ID

    I needed the project to wrap up by 5:30 p.m., at the very latest. They ran over, and I was an hour late to a meeting. I'm glad they finished, and I was forgiven for being late.
  • By Kay B.
    Newman Lake, WA
    "Everyone was very professional and great customer service!"

    Customer Review

    By Kay B.
    Newman Lake, WA

    Everyone was very professional and great customer service!
  • By Jeff S.
    Greenacres, WA
    "Prompt, professional and courteous"

    Customer Review

    By Jeff S.
    Greenacres, WA

    Prompt, professional and courteous
Click to see why people hire us

Recent job requests for basement waterproofing in WA:

Project Location: Colbert, WA 99005

Comment: Our basement flooded in a closet due to snow melt and water leaking over the foundation. We need to remedy this issue so it doesn't happen again.

Project Location: Cheney, WA 99004

Comment: Water in the basement every Spring

Project Location: Cheney, WA 99004

Comment: Leaky basement

Project Location: Sumner, WA 98390

Comment: We have a water oroblem in our basement. We need a sysem that drys it out,. The basement is a partial basement We have comletely removed everything from the basement.

Project Location: Burlington, WA 98233

Comment: We're getting wet spots, mid-floor, in the basement. I suspect that because of the rain, water is getting under the house and seeping up through the floor.

Project Location: Port Orchard, WA 98366

Comment: We bought a house with an unfinished basement. It's sucking heat out of the house like crazy. We need to get the walls insulated before finishing the walls with studs and drywall.

Project Location: Ferndale, WA 98248

Comment: Water entering basement through large floor cracks

Project Location: Eastsound, WA 98245

Comment: Dirty basement with insulation hanging and poor encapsulation.

Project Location: Castle Rock, WA 98611

Comment: Garage floods in heavy rain where wall meets floor . Daylight basement. Please help

Project Location: Hoodsport, WA 98548

Comment: Our basement floods during heavy rains. We installed a small pump, but that doesnt keep up with the amount of water that comes in.

Project Location: Aberdeen, WA 98520

Comment: Water seeping in where floor meets the basement wall. Stops coming in when rain stops

Project Location: Ocean Shores, WA 98569

Comment: Thank you for your guidance. Silt continually clogging our sump pump and we must routinely blast/spray to manually remove the silt. We hope to consult with you to determine whether there is a better system or way to augment our system to prevent the buildup of silt. We have had several floods and while the warm weather is here want to have expert advice to avert a recurrence of the problems once rain begins this fall. Thank you very much.

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