Alpine Exteriors
Siding · Bellingham, WA & Whatcom County

Whatcom County Deck Builders | Alpine Exteriors

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25 Years in Business2,000+ Projects Completed25-Year Workmanship Warranty5-Star RatedLicensed & Insured

Whatcom County asks more of a deck than most places. In a single service area we build over saltwater bluffs at Birch Bay and Blaine, beside lakes at Whatcom and Samish, on windswept farm flats around Lynden and Everson, and up against snow country in the Baker foothills. Each setting punishes a different weakness, and a contractor who builds the same deck everywhere is guessing. Alpine Exteriors has spent 25 years learning the difference, one site at a time.

One County, Four Deck Climates

Along the shoreline, salt air corrodes standard hardware and bare cedar silvers in a season, so marine sites get stainless fasteners and low-upkeep surfaces. Lakeside lots at Sudden Valley and around Lake Samish live under conifers, where shade and needle litter grow algae on any surface that cannot shed water. The agricultural flats deal in wind: Fraser outflow northeasters that rattle Lynden every winter and make railing and uplift connections a structural matter, not a checkbox. And in the foothills toward Maple Falls and Glacier, decks carry real snow load and need footings and framing sized accordingly. We design to the site, not to a template.

What we do

Alpine siding, roofing, windows & decking.

What County Homeowners Ask Us to Build

  • View decks with cable or glass rails for bay, lake, and Mount Baker sightlines
  • Covered outdoor rooms that turn a Northwest deck into three-season living space
  • Cedar rebuilds and composite conversions on decks the previous owner let go gray
  • Farm and acreage decks scaled for big gatherings and built to ignore the wind

Cedar or Composite: The Honest Version

We install both and favor neither. Cedar is beautiful, local to our region's building tradition, and demands refinishing on a schedule most owners abandon by year four. Capped composite costs more up front and then mostly leaves you alone. The right answer depends on your site's sun, shade, and your appetite for maintenance, and we will tell you plainly which way your situation points during the estimate.

Permits, Setbacks, and a Warranty With Teeth

County work means county rules: shoreline setbacks near the water, snow-load engineering in the foothills, and permit drawings that actually match what gets built. We handle that paperwork as part of the job. More than 2,000 completed projects across this county have taught us where the process bogs down and how to keep your project out of the mud. It starts with a free on-site estimate anywhere from the border to the Skagit line, and it ends with a deck backed by our 25-year workmanship warranty, which we can offer because we build like we intend to drive past the deck for the next quarter century. If yours is soft underfoot, past its era, or just too small for the life happening on it, we should talk.

Recent work

Craftsmanship you can see.

Free, no-pressure estimate

Ready to get started?

Tell us about your project and we'll follow up — usually the same day — to schedule a free on-site estimate anywhere in Whatcom, Skagit & Snohomish County.

(360) 543-4799

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