Trex Deck Builders in Montreal: Certified Installers & Pricing

How Much Does a Trex Deck Actually Cost in Montreal?

That's the first question most Montreal homeowners ask — and the answer isn't straightforward. A Trex deck installed in Montreal runs $55–$90 per square foot (CAD) in 2026, depending on the product line, deck size, and complexity. A standard 300-square-foot deck? You're looking at $16,500 to $27,000 installed.

But here's what matters more than the sticker price: Trex holds up to Montreal winters in ways that pressure-treated wood simply can't match without constant maintenance. When you factor in decades of staining, sealing, and board replacement, the math starts to shift.

This guide breaks down Trex product lines, real Montreal pricing, how to find a certified installer, and what freeze-thaw cycles mean for your deck build.

Why Trex Is Popular in Montreal

Montreal's climate is brutal on outdoor materials. You get freeze-thaw cycles from November through April, heavy snow loads, road salt tracked onto surfaces, and UV exposure during summer months. That combination destroys untreated wood in a few seasons.

Trex composite decking is made from 95% recycled materials — a mix of reclaimed wood fibers and recycled polyethylene. The result is a board that:

• Won't rot, warp, or splinter even after repeated freeze-thaw exposure
• Resists moisture absorption, which is the main cause of frost damage in wood decks
• Doesn't need annual sealing or staining — a major advantage when Montreal's short summers make maintenance windows tight
• Handles snow removal without the gouging and surface damage you see on softwood decks

Neighborhoods like Plateau-Mont-Royal, NDG, and Rosemont are full of older homes with wood decks that need replacing every 10–15 years. Homeowners in these areas are increasingly switching to composite specifically because they're tired of the annual maintenance cycle. In Westmount and Outremont, where property values justify the investment, Trex is becoming the default choice for deck rebuilds.

The short building season matters too. Montreal deck contractors typically work from May through October, and with composite you're not losing weekend after weekend to staining once the deck is built. Your outdoor season is for using the deck, not maintaining it.

Trex Product Lines Compared

Trex offers three distinct product tiers. Each uses the same composite core technology, but the capping and aesthetics differ significantly.

Trex Enhance

The entry-level line. Enhance comes in two sub-options:

• Enhance Basics: Solid colors, slightly narrower color selection. The most affordable Trex board.
• Enhance Naturals: More realistic wood-grain patterns with multi-tonal streaking.

Both use a protective shell on three sides. Good for budget-conscious builds where you still want composite durability.

Trex Select

The mid-range option. Select offers a refined look with a tighter grain pattern and richer color depth than Enhance. It's fully capped on all four sides, meaning the bottom of the board is also protected — important for Montreal installations where moisture can wick up from snow sitting below elevated decks.

Trex Transcend

The premium line. Transcend provides the most realistic wood appearance with deep, multi-tonal color variations. It also features Trex's best fade and stain resistance, which matters if your deck gets direct afternoon sun or if you're hosting barbecues regularly.

Transcend Lineage, the newest collection, mimics tropical hardwoods and offers the widest plank profile at 9.25 inches.

For most Montreal homeowners, Enhance Naturals or Select hit the sweet spot between price and performance. Transcend makes sense if aesthetics are a top priority or you're building a showcase deck visible from the street.

Trex Deck Costs in Montreal

Let's talk real numbers. These are 2026 installed prices in CAD, including materials, labor, substructure, and basic railing.

Cost per Square Foot by Material

For a deeper breakdown of deck sizing and pricing in the region, check out our 12x16 deck cost guide for Ontario — the numbers track closely for Quebec builds of similar size.

What Drives the Price Up

Several factors push Montreal Trex installations toward the higher end of that range:

• Frost line depth: Montreal's frost line sits at 48–60 inches depending on your exact location. Footings must extend below that depth, which means more excavation and concrete. This alone can add $1,500–$4,000 to your project compared to a shallow-footing build.
• Deck height: Second-story decks common in Plateau and Villeray triplexes require more structural framing, longer posts, and often engineered drawings.
• Railing choice: Trex's own aluminum and composite railing systems run $60–$120 per linear foot installed. Glass panels push that to $150+.
• Stairs and landings: Each additional staircase adds $1,500–$3,500 depending on width and material.
• Permits and engineering: In Montreal, deck permits are typically required for structures over 24 inches above grade or over 100 sq ft. Requirements vary by borough — contact Montreal's Building Department or your arrondissement office for specifics. Permit fees and any required engineering drawings add $500–$2,000.

When to Book Your Build

Montreal's compressed building season creates a bottleneck. Book your contractor by March if you want a spring or early summer installation. By April, most reputable builders have their schedules filled into August. If you wait until May to start calling, you may not get your deck until September — or next year.

If you're still in the planning phase, our backyard renovation timeline guide outlines a realistic schedule for deck projects in cold-climate regions.

Finding a TrexPro Certified Installer

Not every contractor who says they install Trex is actually certified by the company. Here's why that distinction matters.

What TrexPro Certification Means

Trex runs a tiered certification program:

• TrexPro: Completed Trex training, demonstrated experience with Trex products. This is the baseline.
• TrexPro Gold: Higher volume of Trex installations, additional training requirements, and verified customer satisfaction.
• TrexPro Platinum: Top-tier installers with the most experience and highest customer ratings.

Certified installers get access to extended warranty options that uncertified contractors can't offer. A TrexPro Platinum installer can provide a 5-year workmanship warranty on top of Trex's 25-year product warranty. That matters in Montreal, where installation quality — especially footing depth and drainage — directly impacts how well your deck survives winter.

How to Verify Certification

1. Use Trex's online contractor locator at trex.com — enter your Montreal postal code to see certified installers in your area.
2. Ask for the certification number directly. Legitimate installers won't hesitate to share this.
3. Check the tier. A TrexPro Gold or Platinum installer will cost more per square foot, but the workmanship warranty justifies it for most builds.

Red Flags to Watch For

• A contractor who claims Trex expertise but can't name which product line they recommend for your project
• No photos of previous Trex installations in the Montreal area
• Unwillingness to pull permits (a legal requirement for most Montreal deck builds)
• Quoting footings shallower than 48 inches — a clear sign they don't understand local frost line requirements

If you're comparing multiple contractors, our guide to choosing the best composite decking in Canada covers what to look for beyond just the brand name.

Trex vs Other Composite Brands

Trex isn't your only composite option. Here's how it stacks up against the main competitors you'll find in the Montreal market.

Trex vs TimberTech/AZEK

TimberTech (owned by AZEK) is Trex's closest competitor. Their premium PVC lines (TimberTech Advanced PVC) are fully synthetic — no wood fibers at all — which gives them a slight edge in moisture resistance. However, Trex's pricing runs 10–15% lower for comparable product tiers, and Trex has a larger installer network in Quebec.

Trex vs Fiberon

Fiberon offers similar composite technology at a lower price point. Their Concordia line competes with Trex Enhance, and Good Life competes with Select. The trade-off: fewer color options and a smaller certified installer network in the Montreal area.

Trex vs MoistureShield

MoistureShield uses a solid-core composite rather than hollow or scalloped profiles. This gives it excellent structural ratings and makes it a strong choice for ground-level or near-water installations. It's less widely available in Quebec, which can mean longer lead times and fewer experienced installers.

For a broader comparison of composite brands available in your area, see our best composite decking brands guide.

Use PaperPlan to visualize different decking materials on your own home before committing — it helps to see how Trex Transcend's dark tones look against your siding versus Enhance Naturals' lighter options.

Warranty & Maintenance

What Trex's Warranty Actually Covers

Trex offers a 25-Year Limited Residential Warranty across all product lines. Here's what that includes:

• Structural integrity: Won't rot, crack, split, or suffer structural damage from termites or fungal decay
• Fade and stain resistance (Transcend, Select, and Enhance): Boards won't fade or stain beyond a commercially reasonable degree
• Performance: Material defects that affect the board's performance

What it doesn't cover:

• Improper installation (this is why certified installers matter)
• Normal weathering and color variation
• Damage from abuse, negligence, or acts of nature
• Issues caused by non-Trex fasteners or accessories used incorrectly

Maintenance in Montreal's Climate

One of Trex's biggest selling points is low maintenance, but "low" doesn't mean "zero." Here's your Montreal-specific maintenance routine:

• Spring cleanup: After the snow melts, sweep off debris and wash with soap and water. A pressure washer on a low setting works, but stay below 1,500 PSI to avoid surface damage.
• Snow removal: Use a plastic shovel or a snow blower with a rubber edge. Metal shovels and ice choppers will scratch the surface. Calcium chloride-based ice melt is safe for Trex; avoid rock salt and products containing magnesium chloride.
• Mold and mildew: Montreal's humid summers can cause surface mold on any composite. A mix of dish soap and warm water handles most spots. For stubborn mold, a composite deck cleaner with oxalic acid works without damaging the surface.
• Gapping and expansion: Trex expands and contracts with temperature. In Montreal, where temperatures swing from -30°C to +35°C, proper gapping during installation is critical. This is another reason to use a certified installer who understands cold-climate specifications — incorrect gapping leads to buckling in summer or excessive gaps in winter.

If you're weighing composite versus aluminum decking for maximum durability, our aluminum decking guide for Ontario covers that comparison in detail.

Frequently Asked Questions

How long does a Trex deck last in Montreal's climate?

25–30+ years with proper installation and basic maintenance. The key factors in Montreal are footing depth (must extend below the frost line at 48–60 inches) and proper board gapping to handle extreme temperature swings. Trex's composite construction resists the moisture absorption that destroys wood decks during freeze-thaw cycles. The boards themselves will long outlast the substructure if that substructure isn't also protected or built with treated lumber or steel framing.

Do I need a permit for a Trex deck in Montreal?

In most cases, yes. Montreal typically requires permits for decks over 24 inches above grade or over 100 square feet. Requirements can vary by arrondissement, so contact your local borough office or Montreal's Building Department before starting. Your contractor should handle the permit application as part of the project — if they suggest skipping permits, find a different contractor.

Is Trex worth the extra cost over pressure-treated wood?

Over a 15–20 year period, the total cost of ownership is comparable. Pressure-treated wood costs $30–$55/sqft installed versus Trex at $55–$90/sqft. But wood decks in Montreal need staining every 1–2 years ($1–$3/sqft per application), plus board replacements as frost damage takes its toll. A wood deck may also need full replacement at the 12–15 year mark. Trex requires essentially zero material maintenance costs after installation. For a larger deck cost breakdown, see our 20x20 deck cost guide.

Can Trex decking handle Montreal's heavy snow loads?

The decking boards themselves handle snow weight without issue. The structural question is about your substructure — joists, beams, and posts. A properly engineered deck frame (16-inch on-center joist spacing is standard, 12-inch for heavy loads) supports Montreal's snow loads safely. Your building permit process will typically require structural calculations confirming this. Trex boards at standard 16" joist spacing are rated to handle residential loads well beyond what snow accumulation produces.

What's the best time of year to install a Trex deck in Montreal?

May through October is the active building season. But don't wait until spring to start planning. The best approach: get quotes in January or February, sign a contract by March, and target a May or June installation. This puts you at the front of the line before the seasonal rush. Late-summer and fall builds are possible but riskier — an early frost or extended rain can push your completion date past the comfortable outdoor work window.