Best Waterproof Decking in Seattle & Western Washington

For the best waterproof decking in Seattle, turn to the Duradek experts. If you have a home with outdoor living space in western Washington state, let Duradek Northwest take care of your deck and railing needs. We will protect your deck and give it an attractive, slip-resistant surface in just one step with Duradek™ vinyl decking.

Call Duradek Northwest at 800-442-9215 or Request a Quote Below


The Pacific Northwest offers a natural beauty that makes outdoor living space an important feature for your home. Whether you are gazing towards the Cascade Mountains, admiring views across Puget Sound, or watching your family enjoy a barbecue together, your deck or balcony is often the most valued place to spend time.

All of that west coast beauty comes with a lot of rain. That’s where Duradek™ vinyl decking and Durarail™ aluminum railings come in. When you don’t have to worry about waterproof maintenance to protect your home, you can simply relax and enjoy your deck. That means you can keep your focus where it belongs – on quality time with family and friends.

How Seattle Area Homeowners can Benefit from Waterproof Vinyl Decking

Create Functional Outdoor Living Space with Duradek™

Spending time outdoors is a great way to keep a healthy and happy lifestyle. That makes long-lasting outdoor living space a great investment for your family. By creating functional outdoor areas, you add more usable living space.

Duradek vinyl is both a roofing membrane and a walking surface. It is an easy solution to fill two needs with one product. With Duradek, you get an attractive deck surface and more.

  • Use Duradek on roof decks to add comfortable outdoor living space without increasing the footprint of the home.
  • Add more usable outdoor space with elevated decks, instantly creating dry space below. Gain protection from the rain for a patio or dry outdoor storage.


The Best Waterproof Decking in Seattle has its Advantages

  • Duradek is installed only by trained and authorized applicators, skilled in the techniques unique to deck and flat roof deck waterproofing.
  • Excellent warranty for waterproof performance and appearance – all backed up by over 45 years of proven performance.
  • Our low-maintenance waterproof decking has built-in mold and mildew inhibitors. It needs just simple cleaning and annual inspection – no recoating required.
  • For an environmentally sound product choice, Duradek vinyl is a Green Alternative. Compare to other decking products that often end up in landfills.


3 More Reasons Why Duradek is the Best Waterproof Decking in Seattle

Duradek is Roofing Approved

Duradek vinyl decking is a roofing-approved waterproofing method. If your deck is above living space, a garage, or outdoor storage area – no problem! Duradek meets building code as a roofing membrane and keeps it dry below.


Professional Installation

Duradek is installed only by trained and authorized professionals. Homeowners in Washington state can trust it to protect their homes. Duradek Northwest works with a network of trained, authorized Duradek applicators. This means you can trust that your decking project will be completed with the most reliable waterproofing details.

One-Stop Deck & Railing Solution

When both your waterproof deck surface and your waterproof railings are provided by a Duradek Contractor, it is an easy, single-source solution for low-maintenance decking made to last. You don’t risk a different railing contractor unknowingly compromising the integrity of your vinyl membrane waterproofing.

Contact Duradek Northwest for More Information or a Free Estimate

Contact us to be put in touch with a trained Duradek waterproofing professional in Seattle or other Western Washington locations. Our network of independent Duradek applicators is skilled in the details necessary for successful deck and flat roof deck waterproofing.

Note: All Duradek Applicating Companies receiving training. However, there is no substitute for homeowners to perform their own due diligence for quality of workmanship, service, and contractor reliability. Please feel free to refer to this helpful checklist as a guideline in selecting a decking contractor.

Call 800-442-9215

Or submit the form below to request more information:

Request More Information in Western Washington

Thanks for considering Duradek Northwest. A few details about your project is all we need to get you one step closer to your new deck. Please allow up to 2 business days for a response during the busy summer months.

More Waterproof Deck Options

Do you prefer the look of stone pavers or exterior tile for your outdoor spaces? Duradek still has your waterproofing needs covered. Duradek’s Tiledek membrane is made to waterproof below heavier wear surfaces like outdoor tile. Check out this transformation on the rooftop patio at the iconic Edgewater Hotel in Seattle.

About Duradek Northwest

Duradek Northwest has been the exclusive Duradek™ Distributor for Washington state since 1994. Family owned and operated, the Duradek Northwest team takes the ‘people first’ principles of Duradek to the homes of families throughout the Pacific Northwest and Alaska. Led by owner and founder, Matt Whale, his children have already followed in his footsteps and established themselves as the next generation of experts in the industry. Daughter, April Stokesbury is Duradek Northwest’s Architectural Liaison and has been the president of the Puget Sound chapter of the Construction Specifiers Institute for 2020/2021. Son, Michael Whale has taken on partial ownership of the business and oversees warehouse operations.

Duradek Northwest is backed by the experience of their parent company, Washington, Alaska Roof Systems, Inc. Our focus is on roofing, waterproofing, and weatherproofing the building envelope.

Duradek Northwest
420 37th Street NW, Suite G
Auburn, WA 98001

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