Trusted - Quality

waterproofing for western washington & beyond

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Decks & Patio

Whether you have tile, pavers, decking, or want to walk directly on the waterproofing, these systems protect your home from water mold and damage like a roof for your deck.

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Below-grade

Below-grade waterproofing membranes protect your underground spaces from the abundant groundwater in Seattle.

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Resurfacing

Whether your deck is too slippery or currently leaking, resurfacing extends the life of your current waterproofing system.

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What Our Customers Say

  • Skanska

    Sound Waterproofers helped identify a below grade waterproofing design issue, and proposed workwise solution to keep moving forward so we could stay on schedule.

  • Campfield Construction

    I have used Sound for our waterproofing needs for many years. I’ve always been very impressed with their knowledge of product and application, as well as the quality of their workmanship.

  • Exxel Pacific

    Sound Waterproofing’s overall willingness to work in the worst conditions to get the job done was impressive. Muddy soils, failing sump pumps and somehow figured it out to keep us on schedule. I don’t think another contractor would’ve been able to make that work.

  • Holland Construction

    Sound Waterproofing has been a critical partner on our projects for over a decade in Puget Sound. Their teamwork, expertise, and quality make them a first choice for large and complex projects in the Pacific Northwest.

Quality
Guaranteed

We take pride in offering the best warranties in the industry and the company’s dedicated team of waterproofers has the expertise to do the job right. If you ever have concerns about your project, we will work closely with you to earn your complete satisfaction.

LEED Green
Associate

We also have the LEED Green Associate credential which demonstrates green building expertise. The Green Building Certification Institute (GBCI) has created the credential, which denotes knowledge of green design, construction, and operations.

Licensed and
Professional

We are a licensed contractor in the state of Washington and a member of the Master Builders Association of King and Snohomish Counties. Our Washington State Contractor license number is SOUNDWI*871NT

More About Us

Contact us for a free estimate or more information

206-629-4690 |