Deck Builders in Lynnwood, WA | Alpine Exteriors

Decks Built for Lynnwood's Shade and Rain

Walk any street between Alderwood and Scriber Lake in February and you can spot the decks that were built without the Pacific Northwest in mind: green film on the boards, soft spots at the stair stringers, flashing rusting where the ledger meets the house. Lynnwood sits under a canopy of mature Douglas firs, and most of its housing stock — the split-levels and ramblers put up in the 1960s and 70s as the city grew along Highway 99 and I-5 — came with small, builder-grade decks that were never meant to last fifty years in this climate.

Alpine Exteriors replaces those tired platforms with decks engineered for exactly these conditions: constant winter moisture, needle litter that traps water against the boards, and long stretches of shade where nothing ever fully dries out. After 2,000+ completed projects across Snohomish and King County, we know where Northwest decks fail first — and we build so yours won't.

Cedar, Composite, or PVC?

There is no single right answer for every Lynnwood lot. A south-facing yard near Martha Lake gets enough sun to keep a sealed cedar deck healthy with routine maintenance. A north-facing yard boxed in by evergreens off 196th is a different story — there, capped composite or PVC decking earns its price by shrugging off the algae that would stain wood within a season or two.

On every project we address the parts you don't see, because that's where decks actually rot:

• Ledger protection — peel-and-stick membrane plus metal flashing where the deck attaches to your siding, the number-one leak point on older Lynnwood decks
• Joist taping — a barrier on top of every joist so trapped needle debris can't rot the frame from above
• Proper footings — poured to depth in our glacial till soils, not set on surface blocks like many 70s-era originals
• Hidden stainless fasteners — no corroding screw heads bleeding rust streaks across your new boards

Permits, Railings, and Snohomish County Code

Lynnwood enforces current codes on guardrail height, stair geometry, and ledger attachment — details that many aging decks in the city would fail today. We handle the permit drawings and inspections, and we bring older configurations up to code rather than copying what was there. If you're adding height for a view or building around one of the big firs that make these neighborhoods feel like the woods, we design the structure for it instead of improvising on site.

A Local Crew, a Long Warranty

Alpine Exteriors has spent 25 years building outdoors in western Washington, and we back every deck with a 25-year workmanship warranty — a promise that only makes sense when the construction underneath is done right. If your Lynnwood deck is flexing, staining, or simply too small for how your family actually uses the backyard, we'll come take a look. On-site estimates are free, and we'll give you an honest read on whether your existing frame is worth saving or ready for retirement.