Home » Services » Deck Waterproofing
Professional Deck Waterproofing Service in Seattle
Professional Roof Top Deck Sealing & Liquid Membrane Systems
What is Our Professional Deck Waterproofing Process?
We believe that a lasting finish is 90% preparation and 10% application.
Deep Cleaning
We use professional-grade cleaners to remove dirt, gray wood fibers, and organic growth without damaging the wood grain.
Specialized Sanding
Once dry, we lightly sand the surface to open the wood pores and remove any remaining imperfections. This step is crucial for even stain absorption.
Premium Application
We apply top-tier, contractor-grade stains using a combination of brushing and rolling techniques to ensure deep penetration and a streak-free finish.
Final Quality Check
We inspect every board and railing to ensure the coating is uniform and the wood is fully saturated for maximum protection.
PAST PROJECTS
Examples of our deck waterproofing repairs
CUSTOMER TESTIMONIALS
Customers about our trusted deck repair services
“
Huge shoutout to Derrick and the crew at Alexandria Builders. Our deck was peeling badly from a DIY job we did a few years ago. They stripped it down completely and applied a beautiful semi-transparent stain that looks incredible. They are clearly experts in deck refinishing and didn't cut any corners on the prep work. If you want your deck done right the first time, give these guys a call.
Amanda S.Green Lake
“
Alexandria Builders did a fantastic job on our large multi-level deck. Anar was professional from start to finish and made sure we were happy with the stain color before they did the whole thing. You can tell these guys know the Washington climate because they knew exactly when to time the application between rain clouds. Professional, fast, and high-quality results. Five stars for the whole team!
Robert T.Magnolia
“
We had a great experience with Alexandria Builders for our deck restaining. Derrick was our main point of contact and he really took the time to explain the difference between the oil and water-based options for our specific sun exposure. The crew was hardworking and respectful of our property. Our outdoor space looks amazing now, and the price was very fair for the quality of work provided.
Michelle K.Ballard
“
It’s hard to find reliable contractors in Seattle, but Alexandria Builders exceeded expectations. Anar and his team refinished our mahogany deck last month. They were very careful with our landscaping and cleaned up every night before leaving. The deck has survived several heavy downpours already and the water is still beading up perfectly. I’ll definitely be using them for maintenance in the future.
David R.Capitol Hill
“
I’m really impressed with the professionalism of Alexandria Builders. Derrick handled our project and he was extremely meticulous with the power washing and sanding phases, which made a huge difference in the final look. They used a high-quality penetrating oil that really brought the wood grain back to life. Great communication throughout the process and they finished right on schedule.
Jason L.West Seattle
“
Our cedar deck was looking pretty grey and weathered after the last two winters. We called Alexandria Builders, and Anar came out to give us an estimate. He was very knowledgeable about which stains hold up best against the Seattle rain. The crew was punctual, masked off the siding perfectly, and the finish is flawless. It looks like a brand-new deck. Highly recommend them for any refinishing work!
Sarah M.Queen Anne
Extend the life of your deck
Click below to schedule your FREE on-site consultation. We’ll help to find the best solution for your project.
