Bellingham Deck Waterproofing Membrane
The Pacific Northwest doesn't go easy on outdoor surfaces. Rain, moisture, and seasonal temperature shifts break down unprotected decks over time, leading to long-term damage to the structure beneath. Foundation Restoration installs professional deck waterproofing membrane systems throughout Bellingham and Whatcom County, protecting outdoor living spaces and the structures they sit on.
No pressure. No upselling. Just honest assessments and waterproofing systems installed the right way.
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Give us a call at (360) 383-7500 or fill out the form below for a free quote. Need more info? No problem! Just keep scrolling.
What Is a Deck Waterproofing Membrane?
A deck waterproofing membrane is a durable barrier applied to a deck surface to prevent water from penetrating into the substrate below. Without proper waterproof protection, moisture works its way through concrete, wood, and other materials, causing rot, corrosion, and structural deterioration that gets more expensive to correct over time.
Waterproofing deck membranes are used on:
Wood decks and composite deck surfaces
Concrete decks and roof decks
Pool surrounds and exterior walkways
Parking decks and areas subject to vehicular traffic
Commercial applications where durability and performance are critical
In the Pacific Northwest, proper waterproofing is not optional. It is what keeps outdoor spaces usable and protects the investment in the structure below.
Why Deck Waterproofing Matters
Western Washington averages significant annual rainfall, and Bellingham sits in one of the wetter parts of the region. Wood decks, concrete decks, and roof decks that are not properly waterproofed absorb moisture in both longitudinal and transverse directions, leading to:
Rot and deterioration in wood substrates
Cracking and spalling in concrete decks
Moisture damage to framing and structural members below
Mold and air quality issues in enclosed spaces beneath the deck
A properly installed waterproofing membrane stops moisture at the surface before it has the chance to cause long-term damage. It extends the life of the deck, protects the structure below, and keeps outdoor living spaces functional year after year.
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STRAIGHT ANSWERS.
SOLID SOLUTIONS.
No pressure. No upselling. Just steady, professional guidance and installation. If you have noticed a crack in your foundation, a sloping floor, moisture in the basement, or a musty crawlspace, it can be hard to know where to start. We help you understand what you are looking at and work with you to find a solution that fits both your goals and the home.
Every person we asked referred Foundation Restoration. The guys were thorough in their initial evaluation, respectful of our home while working, and they had great communications at every step of the process. We’d be happy to work with FR again in the future.”
- Nicole, homeowner, Bellingham
Deck Waterproofing for Residential and Commercial Projects
Residential
We waterproof decks on occupied homes throughout Bellingham, Whatcom, Skagit, Island, San Juan, and Snohomish counties. Whether you have a wood deck off the back of the house, a roof deck above living space, or a concrete surface that needs protection, we can assess the condition, recommend the right system, and install it correctly.
Proper preparation matters. We evaluate the substrate, address any existing moisture damage, and make sure the surface is ready before any waterproof membrane is applied.
Commercial
Commercial applications require waterproofing systems that hold up under heavier use. We work on parking decks, roof decks, commercial building exteriors, and other projects where the membrane needs to perform under vehicular traffic, foot traffic, and continuous exposure to the elements.
We are experienced with the product systems and installation methods required for commercial-grade deck waterproofing in Western Washington.
WHAT TO EXPECT
When you contact us, you’ll likely speak with Janeah or Kelsey. They’ll ask a few questions, gather basic information, and schedule a site visit. If you have a prior report or estimate, they will review it so our team arrives prepared.
During the visit, you’ll meet with Eric or David. They’re experienced builders, not commissioned sales staff. They’ll evaluate the issue and surrounding conditions and explain what they see in plain language.
Afterward, you’ll receive a written proposal with recommended solutions and costs. If there’s more than one option, we’ll walk you through it so you can decide without pressure.
We’re owner-led, and your estimator stays involved through completion so the work is carried out as discussed. Our crews keep a clean job site.
DEEP LOCAL KNOWLEDGE. PROVEN EXPERIENCE. CLEAR ACCOUNTABILITY.
Behind every Foundation Restoration project is Matt Shaver, whose hands-on leadership and long commitment to quality and community help set the standard for how work gets done.
Locally owned & operated by Matt Shaver
Serving Whatcom, Skagit, Island, San Juan, and Snohomish counties
Licensed, bonded, and insured
Project continuity
Your estimator is the project manager from start to finish
Clear, written warranty terms
Structural Specialists
Thousands of local foundations evaluated and repaired since 2009
Extensive experience with Western Washington soil, moisture, and settlement conditions
Commercial-grade systems installed in residential homes
Involved in our communities
Supporting local organizations and community initiatives
David Burkett
Residential Estimator
& Project Manager
Kelsey Riley
Director of Admin
Eric Simonsen
Residential Estimator
& Project Manager
LOCAL EXPERIENCE YOU CAN SEE
Since 2009, we have evaluated and repaired thousands of homes throughout Whatcom, Skagit, Island, San Juan, and Snohomish counties. From older foundations on South Hill to hillside properties in Sudden Valley and historic homes in the Lettered Streets, we understand how Western Washington rainfall and changing soil conditions affect structures over time.
We have worked on homes built on rocky bluffs in the islands, on expansive soils in the Skagit Valley, and on mixed fill common in parts of Bellingham. Each site presents different conditions, and each requires a careful, site-specific approach.
Many of our projects are in neighborhoods you likely know. We are often referred by homeowners, real estate professionals, inspectors, and local contractors who have seen our work firsthand.
My wife and I thought they were excellent from start to finish. Knowledgeable, competent, accommodating, quick to respond, and always able to answer questions. And just genuinely nice people. Honestly, Foundation Restoration is one of the best companies I’ve worked with…highly recommend going with them.”
- Chris, homeowner, Fountain District, Bellingham
THOUSANDS OF SATISFIED CUSTOMERS
FAQs
The right system depends on the condition of the substrate, how the deck is used, and the desired finished surface. Vinyl membranes and thin-bed systems are both commonly used on wood decks. We assess each project individually and recommend the system that fits the specific conditions.
What is the best waterproofing membrane for a wood deck?
1
In many cases, yes. The extent of existing damage affects the scope of preparation work required before the membrane can be applied. We evaluate the substrate condition during the site visit and include any necessary prep work in the written proposal.
Can you waterproof a deck that already has moisture damage?
2
How long does deck waterproofing last?
3
Lifespan varies depending on the product system, substrate condition, and how the deck is used. Most quality waterproofing membranes are designed for long-term performance when installed correctly and maintained appropriately. We use products from manufacturers with strong track records in commercial and residential applications.
Do you work on commercial projects?
4
Yes. We work on residential and commercial deck waterproofing projects throughout Western Washington. If you have a commercial project, contact us to discuss the scope and schedule a site visit.