Deck Building & Replacement in Seattle, WA | Wanaka Remodeling
Seattle, WA · Free In-Home Estimate

Deck Building in Seattle, WA

From a small backyard platform behind a craftsman bungalow to a hillside deck built to handle a steep lot, we build decks sized for how Seattle homes actually sit on their land.

✓ Licensed & Insured
✓ 5-Star Rated
✓ Free In-Home Estimate
✓ No Surprise Costs
✓ Serving Seattle, WA
Serving Seattle, WA

Deck Building Built for Seattle Lots

Seattle's older neighborhoods — craftsman bungalows, rowhouses, and homes built on sloped lots — often come with a small, aging deck that was never quite built to code, or a backyard that's never had a deck at all because the lot drops away too steeply for a simple platform. Both are solvable; they just need a design that fits the actual lot instead of a generic layout.

We work across Seattle — Phinney Ridge, Magnolia, Queen Anne, West Seattle, and Ballard — on everything from a compact backyard deck on a standard city lot to an elevated deck built on posts and footings for a steep hillside yard. A lot of our Seattle projects involve tighter lots and tighter access, which changes how we plan material delivery and framing.

Seattle requires a permit through the Seattle Department of Construction & Inspections (SDCI) for any deck attached to the house or elevated above grade, and steep-slope lots can trigger additional review. We pull the permit, manage the SDCI process, and handle every inspection so you don't have to.

Real Project

See the Transformation

An aging wood deck torn out and rebuilt in composite decking with a new railing system.

Deck before rebuild
Before
Deck after rebuild, Seattle WA
After

Ready to Build Your Seattle Deck?

Serving Phinney Ridge, Magnolia, Queen Anne, West Seattle, and Ballard — a free in-home visit, a transparent itemized quote, and a crew that shows up on schedule, every time.

Request a Deck Building Consultation →
What We Do

We Handle Everything So You Don't Have To

Most deck projects go wrong in the details most homeowners never see. We handle all of it.

📐

Design & Layout

We design the deck around your actual lot — slope, sun exposure, and how you'll use the space — not a generic template.

📋

Permits & Inspections

We pull all required permits and manage every inspection with Seattle Department of Construction & Inspections (SDCI). You never have to deal with the city.

🪵

Demo & Framing

Full removal of the old structure and code-built framing underneath — the part that determines whether the new deck lasts.

🛠️

Composite & Wood Decking

Trex composite or cedar decking, installed with proper flashing and spacing so it stays flat and dry for years.

🚧

Railings & Stairs

Trex railing systems and custom stair layouts, built to code and matched to the decking for a clean, finished look.

✅

Final Walkthrough

We walk every detail with you before closing the job. If anything isn't right, we fix it — no questions asked.

The Details

Decking, Railings, Framing & Permits

A deck is only as good as what's underneath it. Here's what's actually involved in the work we do every day.

🛠️

Composite Decking (Trex)

No staining, ever. Resists moisture, mold, and fading. 25-year warranty — our default for this climate.

🪵

Cedar & Wood Decking

Lower upfront cost, natural look. Needs resealing every 2-3 years in the Pacific Northwest.

🚧

Railings & Stairs

Trex or custom wood, built to code and matched to your decking.

💧

Waterproofing & Flashing

Every joist wrapped in flashing tape before decking goes down — the step most contractors skip.

📐

Multi-Level & Elevated Decks

Engineered post & footing plans for sloped or view lots, stairs built to fit the grade.

📋

Permits & Inspections

Full permit management with Seattle Department of Construction & Inspections (SDCI), including every inspection along the way.

How It Works

Simple. Clear. Stress-Free.

Three steps from your first call to your finished deck.

1

Free In-Home Visit

We come to you, look at the yard and the existing structure, and talk through your vision and budget — no pressure.

2

Transparent Quote

Itemized estimate with zero hidden fees. You know exactly what you're paying for.

3

We Build It

Clean demo, code-built framing, regular updates, and a final walkthrough — we don't leave until you love it.

★★★★★

"Tore out our old wood deck and had the new composite one built faster than I expected. No surprise costs, and they handled the permit end to end."

— Dave R., Phinney Ridge, Seattle

FAQ

Common Questions

Everything Seattle homeowners ask us before getting started.

Yes — we build and replace decks throughout Seattle, including Phinney Ridge, Magnolia, Queen Anne, West Seattle, and Ballard. We regularly work on steep-lot and hillside properties that need an elevated, engineered deck rather than a standard ground-level platform.
Any deck attached to the house, or more than 30 inches above grade, requires a permit from Seattle Department of Construction & Inspections (SDCI). We pull and manage the permit for you and coordinate every inspection, so you don't have to deal with the building department directly.
In the Pacific Northwest's wet climate, composite decking (Trex) is almost always the better long-term choice — no staining or sealing, resistant to moisture and mold, and backed by a 25-year warranty. Pressure-treated wood costs less upfront but needs resealing every 2-3 years and can warp or rot without regular maintenance.
A small ground-level deck (100-150 sq ft) in composite decking typically runs $8,000-$12,000. A medium deck (200-300 sq ft) with stairs and railing runs $12,000-$20,000. Larger or elevated decks with custom features run $20,000 and up. We provide a detailed, itemized quote before any work starts.
Most deck builds take 1-2 weeks from start to finish once the permit is approved. A simple ground-level deck can be done in about a week; a larger multi-level or elevated deck typically takes 2-3 weeks.

Book Your Free In-Home Estimate

We'll come to your home, assess your deck project, and give you an honest quote. No pressure, no commitment.

✓ We respond within 1 business day
✓ Free visit, no obligation
✓ Transparent, itemized quote
✓ Licensed & insured crew

Tell Us About Your Project

🔒 Your info stays private. We don't spam or sell your info to 3rd parties.

✅

Request Received!

We'll reach out within one business day to schedule your free in-home visit.

📞 Call Us