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TimberTech composite decking is one of the most popular choices for Puget Sound homeowners, and for good reason. It delivers the look of real wood without the maintenance burden, engineered specifically to handle Western Washington’s sustained rainfall, UV exposure, and temperature swings. At Orca Roofing & Exteriors, we are a licensed TimberTech decking contractor serving Bellevue, Seattle, Tacoma, Kirkland, and Redmond, building and replacing decks with one in-house crew, transparent pricing, and permits handled from start to finish.
Need more information about decks? Visit our deck installation and replacement page.
TimberTech composite decking is engineered for 25–50 years of performance. Unlike cedar, it won’t rot, warp, or splinter, even under Puget Sound’s nine months of sustained rainfall and year-round moisture exposure.
Unlike traditional wood, TimberTech won’t attract termites or suffer from dry rot, even in the wet, shaded conditions common across Bellevue’s hillside lots and Eastside neighborhoods.
Modern TimberTech lines, including AZEK and Vintage, mimic the color, grain, and texture of real wood with more color options than any other composite brand. The result looks like wood. It just doesn’t act like it.
TimberTech products are made with up to 85% recycled materials, keeping plastic waste out of landfills and reducing the demand for virgin timber. Over 4 million trees saved since 2001.
Read about the cost to replace a deck using TimberTech composite materials.
Not all TimberTech products are the same. The brand has three main lines at different price points, each with different performance specs and warranty coverage. We install all three and recommend based on your site conditions, budget, and how long you plan to stay in the home.
| Collection | Material | Lifespan | Warranty | Best For |
|---|---|---|---|---|
| TimberTech PRO | Capped wood-composite | 25–30 years | 25-year fade & stain | Standard residential builds, good value-to-performance ratio |
| TimberTech AZEK | 100% cellular PVC | 30–50 years | 30-year fade & stain | Chronically shaded lots, elevated hillside builds, maximum moisture resistance |
| TimberTech Vintage Collection | Capped composite — premium line | 25–30 years | 25-year fade & stain | Homeowners wanting the most realistic wood grain aesthetic |
Our recommendation for most Puget Sound lots: TimberTech AZEK for elevated builds, shaded north-facing lots, and any site with chronic moisture — which describes a significant portion of properties in Bellevue, Kirkland, and Seattle’s tree-heavy neighborhoods. TimberTech PRO for standard flat-lot builds where budget is a priority without sacrificing long-term performance.
TimberTech decking prices vary by product line, project size, and site complexity. These are honest installed cost ranges for licensed, permitted projects in King County and Pierce County — not material-only costs, not national averages.
| Project Type | Installed Cost per Sq | Notes |
|---|---|---|
| TimberTech PRO — ground level, flat lot | $35–$48 | Standard complexity, basic railing |
| TimberTech AZEK — ground level, flat lot | $42–$58 | PVC line, maximum moisture resistance |
| TimberTech PRO — elevated or sloped lot | $48–$65 | Taller post systems, engineered footings |
| TimberTech AZEK — elevated hillside build | $55–$80+ | Queen Anne, Magnolia, Somerset — slope engineering required |
| Full replacement (demo + TimberTech) | Add $3–$8 per sq ft | Demolition and haul-away of existing deck |
King County permits add $500–$1,500 depending on project scope. Seattle DCI permits run $800–$2,500. All Orca estimates are fully itemized, specific product name, labor, permits, demolition, and cleanup. No single-number bids.
For a full breakdown of composite deck pricing see our deck replacement cost guide.
As a trusted deck replacement contractor, Orca offers high-quality materials for every deck installation:
With years of experience installing Timbertech decking across Seattle, Bellevue, and beyond, Orca is the trusted contractor for high-quality, long-lasting outdoor upgrades.
We install TimberTech to manufacturer spec — which matters for warranty coverage. Improper installation voids the manufacturer warranty. Every Orca project uses the correct fastener system, spacing, and framing spec for the specific TimberTech product being installed.
We’ve been installing composite decking across Bellevue, Seattle, Tacoma, Kirkland, and Redmond for 6 years. We know which TimberTech products perform best on hillside lots, which hold up better in chronic shade, and which finishes show the least wear in the PNW’s UV and moisture cycle.
Forget annual staining or sealing. TimberTech composite boards require only occasional rinsing — a significant advantage for homeowners who want a deck that performs through Puget Sound’s nine months of rain without constant upkeep.
TimberTech offers more color and texture options than any other composite brand. From the warm wood tones of the Vintage Collection to the clean modern lines of AZEK, we help you choose a finish that complements your home’s architecture and your neighborhood’s aesthetic.
Orca Roofing & Exteriors is a locally owned Puget Sound contractor — not a franchise. We’ve been serving Eastside homeowners since 2019 with in-house crews, one project manager on site throughout, and fully itemized estimates before you commit to anything.
As a trusted local Roofing & Exteriors company, we proudly provide expert Roofing & Exteriors services across the Puget Sound region, including:
TimberTech decking prices in King County and Pierce County run $35–$48 per sq ft installed for the PRO composite line on standard flat-lot builds, and $42–$80+ per sq ft for AZEK on elevated hillside builds in Queen Anne, Magnolia, and Somerset. These ranges include materials, labor, and permits. Demolition of an existing deck adds $3–$8 per sq ft. All Orca estimates are fully itemized, no single-number bids.
TimberTech PRO is a capped wood-composite — a blend of recycled wood fibers and polymer wrapped in a protective polymer shell. TimberTech AZEK is 100% cellular PVC — no wood fiber at all. AZEK is more moisture-resistant, lighter, and has a longer warranty. For most Puget Sound lots with chronic shade or moisture, AZEK is the better long-term choice. PRO is a strong option on well-drained flat lots where budget is a priority.
Verify the contractor is licensed on lni.wa.gov, carries current liability insurance, and installs TimberTech to manufacturer spec — which is required to maintain the manufacturer warranty. Orca Roofing & Exteriors serves Bellevue, Seattle, Tacoma, Kirkland, and Redmond with in-house crews and fully itemized estimates after an on-site assessment. Contact us for a free estimate.
Both are strong composite options for Puget Sound’s wet climate. TimberTech AZEK — being 100% PVC — offers slightly better moisture resistance than Trex’s capped composite on chronically shaded lots. TimberTech also offers more color and texture options. The right choice depends on your specific site conditions — we assess both options on the first visit and recommend based on your lot, not on margin.
Yes. We build all deck types across Puget Sound — ground-level patios, elevated hillside structures in Queen Anne, Magnolia, and Bellevue’s Somerset, and multi-level custom layouts with integrated stairs, cable railing, and lighting. If you’re not sure whether your deck needs repair or full replacement first, our repair vs. replace guide covers the full decision framework — and our common deck problems guide covers the warning signs to look for before calling anyone.