Alpine Exteriors
Siding · Bellingham, WA & Whatcom County

Lopez Island Deck Builders | Alpine Exteriors

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

Lopez Island building projects run on ferry time. Materials ride the boat from Anacortes, crews plan around sailings, and any contractor who has not done island work before learns those lessons at the homeowner's expense. Alpine Exteriors builds decks on Lopez with the logistics already solved — complete material takeoffs before the first trip, everything staged and shipped efficiently, and crews scheduled to make every island day count.

Lopez Weather Is Not Mainland Weather

The San Juans sit in the Olympic rain shadow, so Lopez receives far less rain than Bellingham — but do not let the sunshine statistics design your deck. What Lopez has instead is exposure: more UV than most of western Washington, persistent salt-laden wind off the surrounding channels, and shoreline sites where spray reaches structures directly. Decks here fade, dry-split, and suffer hardware corrosion in ways a sheltered mainland deck never will.

Island housing runs from modest cabins near Lopez Village to substantial waterfront homes above the beaches, and nearly all of it is oriented around outdoor living — a deck is often the most-used room on the property from May through September.

What we do

Alpine siding, roofing, windows & decking.

Building Decks That Handle Sun, Salt, and Distance

Because service calls to an island are expensive for everyone, we build so return trips are never needed:

  • Stainless-steel fasteners and structural hardware throughout — the only sensible standard within reach of salt water.
  • Capped composite or PVC decking with strong UV ratings, since fade resistance matters more here than almost anywhere in the state.
  • Cedar options detailed for high sun — finished on all faces and gapped to move with the island's dramatic wet-to-dry swings.
  • Cable and glass railing systems that stand up to marine air while keeping water views wide open.

Framing is ground-contact treated lumber with flashed joist tops, engineered for the actual site — level pasture lot, wooded slope, or bluff above the water.

We front-load the design work on the mainland — measurements, engineering, railing selections, and material orders all locked in before anything is booked onto a sailing. Island owners get the same drawings and fixed written scope as any mainland client, plus a schedule built honestly around ferry capacity in the busy season instead of promises that ignore it.

Worth the Boat Ride

In 25 years of business and more than 2,000 projects, Alpine Exteriors has learned that remote sites reward preparation and punish everything else. We bring that discipline to Lopez, and we back the finished deck with a 25-year workmanship warranty that does not care which side of the water you live on. Estimates are free and on-site: we ride the ferry, walk your property, measure the real conditions, and leave you a firm written price. If you have been putting off a deck project because coordinating island construction felt daunting, that coordination is precisely the part we are good at.

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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