Our expert Deck Waterproofing Services in Newmarket protect your structure from rain, rot, and leaks. We use top-grade membrane systems, Trex® RainEscape, and under-deck systems to shield joists, stop leaks, and keep your outdoor structure dry year-round.
We install professional-grade waterproof vinyl membranes, Trex® RainEscape systems, and under-deck drainage setups designed for Ontario’s harsh climate. With over 15 years of experience, XP Decking delivers precise deck waterproofing services that seal out moisture, protect joists and beams, and prevent long-term structural damage — something a quick DIY or surface sealant just won’t do. We know Newmarket weather, and we build for it.
We offer complete deck waterproofing services in Newmarket, including expert installation of waterproof vinyl decking, drainage systems, and premium moisture barrier solutions built to last in Ontario’s demanding climate.
We install high-quality systems like DURADEK® waterproof vinyl decking, which creates a slip-resistant, waterproof surface. These membranes seal out moisture, stop leaks, and hold up against rain, snow, and heavy foot traffic, with zero need for staining or sealing.
We install custom under-deck waterproofing systems that keep everything below dry, from patio furniture to storage. By adding water diverters, gutter channels, and sealing tape between joists, we help you turn that forgotten space into something useful.
The Trex® RainEscape waterproofing system is built for second-storey decks. It redirects water through hidden troughs away from your structure, keeping the underside bone dry. We’re certified to install it properly, and you can add ceiling panels, lighting, or even a covered seating area underneath.
The Trex® RainEscape waterproofing system is built for second-storey decks. It redirects water through hidden troughs away from your structure, keeping the underside bone dry. We’re certified to install it properly, and you can add ceiling panels, lighting, or even a covered seating area underneath.
Our waterproof deck membranes do more than just cover the surface. They act as a protective barrier over your framing, sealing out rain, snow, and the freeze-thaw damage that eats away at decks. Ideal for wood or composite, these membranes are heat-welded or bonded for lasting performance.
Underneath deck waterproofing for raised decks shields your framing from the elements, and moisture finds every crack. Our method protects the structure from rot, mould, and mildew. We install moisture barriers and redirect runoff, helping preserve your framing and create a clean, dry space you can actually use.
We offer complete deck waterproofing services in Newmarket, including expert installation of waterproof vinyl decking, drainage systems, and premium moisture barrier solutions built to last in Ontario’s demanding climate.
We install high-quality systems like DURADEK® waterproof vinyl decking, which creates a slip-resistant, waterproof surface. These membranes seal out moisture, stop leaks, and hold up against rain, snow, and heavy foot traffic, with zero need for staining or sealing.
We install custom under-deck waterproofing systems that keep everything below dry, from patio furniture to storage. By adding water diverters, gutter channels, and sealing tape between joists, we help you turn that forgotten space into something useful.
The Trex® RainEscape waterproofing system is built for second-storey decks. It redirects water through hidden troughs away from your structure, keeping the underside bone dry. We’re certified to install it properly, and you can add ceiling panels, lighting, or even a covered seating area underneath.
Our waterproof deck membranes do more than just cover the surface. They act as a protective barrier over your framing, sealing out rain, snow, and the freeze-thaw damage that eats away at decks. Ideal for wood or composite, these membranes are heat-welded or bonded for lasting performance.
Underneath deck waterproofing for raised decks shields your framing from the elements, and moisture finds every crack. Our method protects the structure from rot, mould, and mildew. We install moisture barriers and redirect runoff, helping preserve your framing and create a clean, dry space you can actually use.
Every deck is different. We offer proven waterproofing systems that match your structure, materials, and budget — all built to handle Ontario’s tough weather.
Vinyl decking systems like DURADEK® provide a walkable, waterproof surface that seals out moisture while enhancing the look of your deck. Installed as a single sheet membrane, it bonds to the substrate and protects joists, fasteners, and seams from water intrusion. Ideal for balconies and flat-surfaced decks.
Our under-deck drainage systems catch water before it hits your framing and divert it through hidden troughs and downspouts. This keeps the area beneath your deck completely dry—perfect for walkouts, patios, or storage. Our systems are custom-fit and sealed tightly to avoid leaks and sagging.
We install waterproof membranes over or beneath your deck boards to stop rot, mould, and decay from setting in. These moisture barriers are designed for wood-framed structures and create a shield against freeze-thaw cycles, pooling, and snow buildup.
We install Trex waterproofing systems, including the RainEscape® system, for second-storey and elevated decks. This solution hides between joists, capturing water and sending it away from the structure. It’s ideal for creating a dry, finished space below your deck and works with composite, vinyl, or wood builds.
If your deck shows signs of moisture damage, don’t wait. Spotting issues early can save you thousands in repairs. Here’s what to watch for.
If you notice standing water or dripping between deck boards, your deck likely lacks proper drainage. Our deck waterproofing services stop water intrusion and protect structural components by redirecting runoff with under-deck systems and membrane seals.
When surface coatings begin to crack or peel, it’s a sign that moisture is penetrating the deck. We replace failing finishes with waterproof vinyl decking or membrane systems that bond directly to your surface — no flaking, no future issues.
Dark stains or soft spots on joists, beams, or posts point to water damage. Our waterproof deck membranes form a continuous barrier that blocks moisture from reaching your wood framing, extending the life of your entire structure.
Persistent damp odours or visible mould under your deck mean water is being trapped. We install under deck waterproofing systems that create airflow and drainage, stopping mildew and decay before they spread.
If your deck boards or joists are bare, they’re vulnerable. Our team installs vinyl decking systems and Trex® waterproofing systems to seal, protect, and keep your structure safe — especially through tough Newmarket winters.
Newmarket’s freeze-thaw cycles, snow, and heavy rainfall can seriously damage decks. Proper waterproofing keeps your outdoor space safe, strong, and worry-free year-round.
Without proper protection, moisture seeps through gaps and soaks into framing. Our deck waterproofing systems are a barrier against water infiltration, sealing seams, fasteners, and decking to keep structural damage from ever starting.
Trapped moisture leads to rot, mould, and insect infestation. We use waterproof deck membranes and under-deck waterproofing systems to eliminate standing water and humidity, stopping problems before they spread into your home.
Unprotected wood weathers fast in Ontario’s climate. Our waterproof vinyl decking and Trex® systems help extend the lifespan of your deck boards, joists, and beams by creating a long-lasting moisture barrier from top to bottom.
Turn wasted space into something functional. Our underneath deck waterproofing creates dry, sheltered areas below raised decks — perfect for storage, lounge space, or BBQ zones. It’s like adding a new outdoor room.
Water damage leads to expensive repairs. By investing in quality deck waterproofing services, you avoid premature board replacement, rot repair, and structural fixes — saving money over the life of your deck.
With a properly sealed and drained deck, you’ll worry less about rain, snow, or melting ice. Our systems provide peace of mind with durable protection built for Newmarket weather, so you can enjoy your space in every season.
Decking Specialists Turning Your Vision Into Stunning Outdoor Reality.
We don’t just seal decks — we protect your investment. With real experience, certified systems, and a local crew that shows up, XP Decking does it right the first time.
We’ve been waterproofing decks in Ontario for over 15 years. From vinyl membranes to under deck waterproofing systems, we know what works — and what won’t hold up in Newmarket’s tough climate.
We’re certified by Trex® RainEscape and Duradek®, so you get pro-level installation backed by manufacturer warranties. That means your waterproofing is done right — and built to last.
You’re protected every step of the way. Our crew is fully insured and WSIB-covered, giving you peace of mind during every deck waterproofing service we deliver, from prep to final walkthrough.
We build specifically for Newmarket’s building codes and extreme weather. Snow, ice, heavy rain? We’ve handled it all. Our waterproofing is designed for Ontario, not guesswork.
Forget the paperwork. We handle all required permits and inspections so your deck upgrade is fully compliant and stress-free. You just focus on enjoying the results.
We don’t play pricing games. You’ll get a detailed, transparent quote before we start. No upsells, no hidden charges — just honest pricing for professional work.
Whether you’re adding protection to an older build or starting fresh, our systems install cleanly with existing or new decks. We make waterproofing fit your space — without a full teardown.
Schedule a FREE site visit, including precise measurements and a detailed quote, for your new deck solutions.
We start with a free on-site visit to inspect your deck’s condition, framing, and slope. Then we recommend the right waterproofing system based on your needs and structure.
We prep all surfaces, repair problem areas, and install your chosen system — whether it’s vinyl decking, a waterproof membrane, or a Trex® RainEscape under-deck solution.
We don’t leave until it’s perfect. After installation, we test all seals and drainage points, then walk you through your new deck waterproofing system step by step.
A professionally installed deck waterproofing system can last 15–20 years or more with proper care. Systems like vinyl decking and Trex® RainEscape are designed for long-term durability and often come with strong warranties.
Yes, we can waterproof most existing decks. After a site inspection, we’ll recommend the right system, like waterproof membranes or under deck drainage, that can be installed without needing a full rebuild.
For composite decks, we recommend the Trex® RainEscape system. It installs beneath the surface, protecting joists and beams without altering your deck’s appearance. It’s reliable, low-maintenance, and built to last.
The most effective method is a custom under-deck waterproofing system with drainage troughs and downspouts. These systems catch and move water away before it ever touches your framing.
Sealing or staining offers basic surface protection, but for real moisture defence — especially in Newmarket’s weather — deck waterproofing with membranes or drainage systems is a far better long-term solution.
Yes, stopping moisture from getting into your deck framing helps prevent rot, mildew, and even pest issues. Our systems are built to block moisture at every level.
A: Most deck waterproofing installations take between 1–3 days. The exact timeline depends on your deck’s size, structure, and the type of system being installed.
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