Composite decking has overtaken pressure-treated wood as the default for new Ottawa decks built in 2024-2026. The two dominant brands — Trex and TimberTech — are widely available through Ottawa contractors and big-box stores. This 2026 comparison covers the differences that actually matter for Ottawa decks: cold-weather performance, fade/stain resistance, installed pricing through local contractors, and which brand holds up better to our freeze-thaw cycles.
TimberTech (especially AZEK) is the marginally better technical choice for Ottawa's climate, but it costs 10-20% more installed. For a typical Ottawa backyard deck under $10,000, Trex Enhance is the smart-money pick — proven, widely available, and well-supported by Ottawa contractors. For premium builds, multi-level decks, or pool decks where you want the strongest warranty and best cold-weather durability, AZEK justifies the upgrade.
Installed pricing varies significantly by Ottawa contractor, project size, and access difficulty. Here's what real 2026 quotes look like across our network of Ottawa installers. **Trex:** Enhance Basics: $7-$9/sq ft material, $18-$25/sq ft installed. Transcend (premium): $10-$13/sq ft material, $22-$30/sq ft installed. Typical 16'x20' (320 sq ft) Ottawa deck: $5,800-$8,000 Enhance, $7,000-$9,600 Transcend. **TimberTech:** PRO series (capped polymer): $9-$12/sq ft material, $20-$28/sq ft instal...
Warranties are where these two brands differ most. **Trex warranty:** Trex offers a 25-year residential limited warranty on materials with fade and stain protection. Labour is not included. Warranty transfers to a second owner. Coverage requires installation per Trex specifications; deviations can void coverage. **TimberTech warranty:** TimberTech PRO has a 30-year limited warranty (25-year fade/stain). AZEK premium line carries a lifetime limited residential warranty plus a 50-year fade/stain...
Ottawa decks face brutal freeze-thaw cycles plus 6+ months of UV-heavy summer. Both brands perform well in tests, but PVC (TimberTech AZEK) outperforms capped polymer in cold-weather impact resistance — fewer reports of crack/chip damage from snow shovels or dropped objects in -25°C weather. Trex Enhance has been the lower-cost choice in Ottawa for years and performs well for typical residential use. Both brands hide screws with hidden fastener systems, which is critical for Ottawa decks since e...
Most affordable composite decking option in Ottawa — Enhance Basics often hits sub-$20/sq ft installed. Widest selection at Ottawa big-box stores (Home Depot, Lowes, RONA) — easy to source for repairs. Strong contractor familiarity in Ottawa; nearly every Ottawa deck builder installs Trex. **Main drawback:** Enhance Basics fades visibly after 7-10 years in Ottawa sun; only Transcend gets the full fade warranty. **Best for:** Budget-conscious Ottawa homeowners building a typical 200-400 sq ft...
AZEK premium line has industry-leading lifetime + 50-year fade/stain warranty. PVC core (AZEK) doesn't absorb moisture — better long-term performance in freeze-thaw climate. Premium colour and grain patterns look most realistic of any composite on the market. **Main drawback:** 10-20% premium over equivalent Trex tier; AZEK premium line approaches the cost of clear cedar. **Best for:** Premium Ottawa homeowners building pool decks, multi-level decks, or high-traffic decks where lifetime warr...
Both brands are widely installed in Ottawa, but distribution differs. Trex tends to have stronger contractor coverage in newer suburbs (Kanata, Barrhaven, Findlay Creek) while TimberTech is more common in established areas. Ask your top 3 quoted contractors which they install most often — they'll have better expertise on that brand.
In testing and real-world Ottawa installations, TimberTech has shown better resistance to the freeze-thaw cycles and UV exposure that define our climate. That said, installation quality is a bigger predictor of lifespan than brand. A poorly installed premium product will fail before a properly installed mid-tier one.
Both Trex and TimberTech have certified-installer programs in Ottawa. Using a certified installer is required to keep the full warranty. Ask for the installer's certification number and verify it on the manufacturer's website before signing a contract.
Generally not recommended. Mixing brands creates warranty headaches (each manufacturer can deny coverage if the other product is adjacent) and often looks mismatched. If you're doing a partial replacement, stick with whatever brand is already installed if it's still in production.
For Ottawa home buyers, brand recognition matters less than visible quality and warranty transferability. Both Trex and TimberTech offer transferable warranties (usually with a small fee), which is a real resale advantage. Get the transfer paperwork from the previous installation if you're buying a home.