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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
SERVICE AREA:
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.
5883 State HWY 303 NE Suite 101
Bremerton, WA 98311
SERVICE AREA:
NW Washington: including Bremerton, Shelton, and Port Angeles.
View company profile for reviews, awards, before & after photos, and more.
219 Airport Road
Silverton, OR 97381
SERVICE AREA:
Oregon: including Multnomah, Washington, Clackamas, Lane, and Marion counties.
View company profile for reviews, awards, before & after photos, and more.
761 NE Garden Valley Blvd.
Roseburg, OR 97470
10111 S Tacoma Way D5
Tacoma, WA 98499
2001 NE 117th ST
Vancouver, WA 98686
13110 SW Wall St
Portland, OR 97223
SERVICE AREA:
Oregon: including Portland, Salem, Eugene, and Roseburg.
Washington: including Tacoma, Longview, and Vancouver.
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

Testimonials

  • Thanks for all your hard work. Read Full Testimonial
    Eileen K.
    Sandpoint, ID

    Customer Testimonial

    Eileen K.
    Sandpoint, ID
    Thank you for all your hard work on my basement project. Your crews have been wonderful to work with. The office staff has been helpful and great as well. I will highly recommend your company to anyone who asks. I feel like I've made new friends as well. Thank you Eileen Keller
  • I wanted to thank you for taking the time to visit my home in SE Portland recently to meet with the... Read Full Testimonial
    Nick V.
    Portland , OR

    Customer Testimonial

    Nick V.
    Portland , OR
    I wanted to thank you for taking the time to visit my home in SE Portland recently to meet with the contractors working on my remodel. I appreciate you making the trip and sharing information regarding your products with them. I am a big fan of your company and products. I never hesitate to refer others to your firm for there basement and crawspace waterproofing needs.
  • I never questioned who I was going to call to ensure this job was done perfectly. Read Full Testimonial
    Woody E.
    Portland , OR

    Customer Testimonial

    Woody E.
    Portland , OR
    John's Waterproofing came out and encapsulated my crawlspace two years ago. When I decided it was time to finish my basement, they were the only company I called. Throughout the process the crew has been very respectful, clean and thorough. They made sure that my entire basement was sealed off and covered in plastic so that they did not get dirt or mud anywhere in my basement during the process. Manuel answered my questions when I had them and did not mind when I popped my head in to check on their progress. I was very happy with the work they did. Now the space fits with the rest of my finished basement.
  • We Cannot tell you the peace of mind to not worry about the basement every time it rains. Read Full Testimonial
    Linda M.
    Seabeck, WA

    Customer Testimonial

    Linda M.
    Seabeck, WA
    We Cannot tell you the peace of mind to not worry about the basement every time it rains. 5 Stars all the way!
  • Every time I hear the pump run I am thankful I'm not down there sucking the water out of the carpet! Read Full Testimonial
    Barbara B.
    Olympia, WA

    Customer Testimonial

    Barbara B.
    Olympia, WA
    Just letting you know how thankful we are that you waterproofed our basement last January. Every time I hear the pump run I am thankful I'm not down there sucking the water out of the carpet!
  • The “crew”, actually made us laugh, with their singing and chatting to one another. We have... Read Full Testimonial
    Paul and Rosemary W.
    Keizer, OR

    Customer Testimonial

    Paul and Rosemary W.
    Keizer, OR
    AJ & crew, Paul & I would like to thank you, for a pleasant and professional experience, doing our waterproofing. The “crew”, actually made us laugh, with their singing and chatting to one another. We have “never” experienced people enjoying their jobs, as your crew does! Or is their way, of keeping their sanity, in that dark hole!! Kudos to you and your crew for giving us, such, a great experience. We would recommend you “highly” Paul & Rosemary Willhite
  • Taking back our garage to house cars! Read Full Testimonial
    Larry K.
    Kitsap County, WA

    Customer Testimonial

    Larry K.
    Kitsap County, WA
    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.
  • Your whole team was always polite, helpful, and professional. I am very pleased with the completed job and... Read Full Testimonial
    Joanna K.
    Idaho, ID

    Customer Testimonial

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

    Customer Testimonial

    Charlene H.
    North Idaho, ID
    Thank you for the job you did. It was handled in a very professional manner.

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

  • full starfull starfull starfull starfull star
    By Wesley R.
    New York City, NY
    The services were as expected, thank you for the good work
    View Review

    Customer Review

    full starfull starfull starfull starfull star
    By Wesley R.
    New York City, NY
    The services were as expected, thank you for the good work
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    By Sue D.
    Salem, OR
    Although I said I would hire you again, I hope that I don't...
    View Review

    Customer Review

    full starfull starfull starfull starfull star
    By Sue D.
    Salem, OR
    Although I said I would hire you again, I hope that I don't have too. :)
  • full starfull starfull starfull starfull star
    By Joyce M.
    Salem, OR
    Overall very professional, customer oriented, clear in...
    View Review

    Customer Review

    full starfull starfull starfull starfull star
    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.
  • full starfull starfull starfull starfull star
    By Judith &.
    Dallas, OR
    Just improve the communication between the front office and...
    View Review

    Customer Review

    full starfull starfull starfull starfull star
    By Judith &.
    Dallas, OR
    Just improve the communication between the front office and the customer
  • full starfull starfull starfull starfull star
    By Ronan F.
    WA
    Our experience with TerraFirma was great from beginning to...
    View Review

    Customer Review

    full starfull starfull starfull starfull star
    By Ronan F.
    WA
    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.
  • full starfull starfull starfull starfull star
    By Iva Q.
    Molalla, OR
    We were very impressed with how committed John's was with...
    View Review

    Customer Review

    full starfull starfull starfull starfull star
    By Iva Q.
    Molalla, OR
    We were very impressed with how committed John's was with doing a very thorough job. They went above and beyond the job and our crawl space has never looked better. Great team of guys. We would highly recommend this installation crew to anyone with water issues in a crawlspace. I was impressed by the clean up job and their commitment to doing a top quality work.
  • full starfull starfull starfull starfull star
    By Kelly C.
    Molalla, Or 97038, OR
    Fast contact, ability to complete work right away and the...
    View Review

    Customer Review

    full starfull starfull starfull starfull star
    By Kelly C.
    Molalla, Or 97038, OR
    Fast contact, ability to complete work right away and the lowest price quote.
  • full starfull starfull starfull starfull star
    By Steven H.
    Portland, OR
    Fast, professional, helpful. These guys did a great job in...
    View Review

    Customer Review

    full starfull starfull starfull starfull star
    By Steven H.
    Portland, OR
    Fast, professional, helpful. These guys did a great job in half the expected time.
  • full starfull starfull starfull starfull star
    By Cathy S.
    Coeur D'Alene, ID
    The dry-wall crew was great also! Everyone was very clean...
    View Review

    Customer Review

    full starfull starfull starfull starfull star
    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!
Click to see why people hire us

Recent job requests for basement waterproofing in WA:

Project Location: Medical Lake, WA 99022

Comment: We are having some water pooling in our unfinished basement

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