How long does membrane decking installation take in Kenmore?

Kenmore permit processing runs 3–5 weeks through City of Kenmore Community Development. Active construction on a standard 350–450 sq ft deck: 7–12 days. Total project timeline from first call to final inspection: 8–14 weeks typical.

Do you need a permit for membrane decking in Kenmore?

Yes — City of Kenmore Community Development issues residential deck permits through kenmorewa.gov/permits. Processing time: 3–5 weeks. We handle permit applications as part of our service — you review and sign, we handle the submission and follow-up.

Are you licensed and insured for membrane decking in Kenmore?

Yes — The Seattle Decking Company is licensed under Complete Consulting and Construction (CC# COMPLCC882Q5), bonded, and fully insured for all Kenmore deck projects. We carry general liability and workers' compensation. We pull all permits and submit compliant applications to City of Kenmore Community Development.

Membrane Decking Kenmore WA

Q: What membrane decking brands do you install in Kenmore?

We install Duradek Ultra, Duradek Elite, Tufdek in Kenmore. Seattle rain falls at an angle.

Waterproof walking surface for decks over living space — the only solution that works in Seattle's rain. Lake Washington's north end — lakefront builds, wooded hillside lots, and Puget Sound water table. Premium composite and PVC are the standard here.

✓ Licensed & Insured — CC# COMPLCC882Q5✓ 15+ Years in King County✓ Free Estimates✓ 3–5 weeks Permit Processing

Membrane Decking in Kenmore

Why Kenmore Homeowners Choose Membrane Decking

Vinyl membrane decking (Duradek, Tufdek, Duralast) creates a fully waterproof walking surface for decks built over garages, basements, or living spaces below. Unlike composite or cedar, membrane forms a continuous water barrier — critical in Seattle's 38-inch annual rainfall when the space beneath the deck must stay dry.

Seattle rain falls at an angle. A 1/4-inch board gap in a composite deck channels water directly onto the structure below — fine if there's nothing down there, catastrophic over a living room or garage. Membrane decking eliminates this variable with a continuous 60-mil vinyl surface that drains to the edge, keeping the space below fully protected year-round.

fact_checkMembrane Decking — Quick Facts

Price range (Kenmore)$19–$34/sq ft installed

Lifespan15–25 years

MaintenanceAnnual cleaning — replace flashing every 10–15 years

Permit authorityCity of Kenmore Community Development

Permit timeline3–5 weeks

check_circleBest For

→Decks above garages or living space
→Second-story decks with occupied space below
→Waterproof balcony applications
→Multi-story buildings where below-deck waterproofing is critical

Membrane Decking in Kenmore — What to Know Before You Start

policy

Permit & Timeline

City of Kenmore Community Development handles residential deck permits through kenmorewa.gov/permits. Standard processing: 3–5 weeks. We submit complete applications — you sign off, we handle the rest.

home_work

HOA & CC&Rs

Minimal HOA presence — most single-family residential

engineering

Kenmore Site Conditions

Lake Washington proximity creates high moisture environment — cedar requires more frequent maintenance than inland lots

mapKenmore Neighborhoods We Serve

Kenmore waterfrontLog Boom Park areaWayne Golf Course neighborhoodLakeview

We serve all Kenmore neighborhoods for membrane decking projects — and surrounding King County areas. Landmarks nearby: Log Boom Park, Kenmore Air Harbor, Wayne Golf Course, Burke-Gilman Trail. Serving all of King County.

Membrane Decking Cost Guide — Kenmore 2026

Prices reflect Kenmore market rates. Actual quotes depend on site conditions, railing choice, and project complexity.

Project Size	Low Estimate	Mid Estimate	High Estimate	Notes
Small (200–300 sq ft)	$3,800	$6,750	$10,200	Composite railing, standard footings
Standard (350–450 sq ft)	$6,650	$10,800	$15,300	Most common Kenmore project size
Large (500–700 sq ft)	$9,500	$16,200	$23,800	Cable or glass railing; pergola cover
Premium / Multi-level	$15,300	$22,100	$120,000+	Engineering, hillside, HOA, glass railing

Ready for a Kenmore Membrane Decks estimate?

Free estimates · Licensed & insured · King County's #1 deck builder

(425) 675-6259 Get Free Quote

Membrane Decking Brands We Install in Kenmore

verifiedDuradek Ultra

verifiedDuradek Elite

verifiedTufdek

verifiedDuralast

verifiedBiltrite

wb_sunny

Pacific Northwest Build Window — Kenmore

Kenmore's optimal build season runs April through October. Permit submission to City of Kenmore Community Development takes 3–5 weeks — submit in January or February to capture an April or May project start. HOA review adds additional lead time — contact us to plan the full submission timeline.

Membrane Decking Kenmore — Frequently Asked Questions

How much does membrane decking cost in Kenmore?

Membrane Decking in Kenmore runs $19–$34 per square foot installed. A standard 350–450 sq ft deck runs $6,650–$15,300 depending on railing type, site conditions, and whether engineering is required. Premium configurations with glass railing and pergola cover run higher. Call us for a free site-specific estimate.

Do I need a permit for membrane decking in Kenmore?

Yes — City of Kenmore Community Development requires a permit for residential deck construction. Processing time: 3–5 weeks. We handle permit applications as part of our service and submit complete packages to minimize revision cycles. Minimal HOA presence — most single-family residential

What membrane decking brands do you install in Kenmore?

We install Duradek Ultra, Duradek Elite, Tufdek, Duralast, Biltrite in Kenmore. Our material recommendation depends on your site conditions — lake washington proximity creates high moisture environment — cedar requires more frequent maintenance than inland lots affects which products perform best on your specific lot.

How long does a membrane decking project take in Kenmore?

Free estimate: same week. Design and material selection: 1–2 weeks. Permit processing: 3–5 weeks. Active construction: 7–12 days for a standard 350–450 sq ft deck. Total from first call to final inspection: 8–14 weeks typical. HOA review (where applicable) adds 3–5 weeks before permit submission.

Are you licensed and insured for work in Kenmore?

Yes — we are licensed under Complete Consulting and Construction (CC# COMPLCC882Q5), bonded, and fully insured for all Kenmore projects. We carry general liability and workers' compensation and pull all required permits.