Alpine Exteriors
Siding · Bellingham, WA & Whatcom County

Friday Harbor Siding Contractor, San Juan Island

Home › Friday Harbor Siding Contractor, San Juan Island
25 Years in Business2,000+ Projects Completed25-Year Workmanship Warranty5-Star RatedLicensed & Insured

Island Walls: Salt, Sun, and Wind

Friday Harbor sits in the Olympic rain shadow, so San Juan Island homes actually see less rain than Bellingham — but nobody should mistake that for an easy climate. What the island trades away in rainfall it collects in salt-laden wind off the channels, and in sunshine: south- and west-facing walls above the harbor take more UV than almost any siding in western Washington. The result is a distinctive island failure pattern — paint chalking and fading on the sunny exposures, corrosion at fasteners and flashings everywhere, and wind-driven salt spray working into end grain near the waterfront.

The town's building stock spans a century, from early-1900s storefronts and farmhouses within walking distance of the ferry landing to view homes on the ridges outside town. Original cedar on the older structures has often been painted a dozen times, and each repaint buys less time than the last.

What we do

Alpine siding, roofing, windows & decking.

Materials That Respect the Setting

Friday Harbor cares how it looks, and so do we. Fiber cement in a smooth or cedar-textured lap keeps the traditional profile the historic district wears well, while carrying finishes engineered for UV that outlast site-painted wood several times over. Where owners want authentic cedar — and on this island, many rightly do — we install it with stainless fasteners, back-priming, and a rainscreen gap, then map out the realistic recoating schedule island sun demands.

Our island specification always covers:

  • Stainless steel nails and corrosion-resistant flashings, non-negotiable within reach of salt air
  • Factory-finished or marine-grade coatings on the south and west exposures
  • Taped, drainable weather barriers behind every wall we open
  • Careful demolition and disposal planning, since island dump runs are neither cheap nor casual

Ferry Logistics, Solved Before We Sail

Mainland contractors stumble on the obvious: everything arrives by boat. We stage materials to cross on scheduled sailings from Anacortes, sequence the job so crews are never idle waiting on a missing bundle, and plan crew lodging for multi-day phases. You should never pay for a contractor's ferry-schedule education — after 25 years of working around northwest Washington's water, ours is complete.

Standing Behind Island Work

Distance is no excuse for disappearing after the check clears. Alpine Exteriors backs Friday Harbor installations with the same 25-year workmanship warranty we carry on the mainland, supported by a track record of more than 2,000 completed projects. If something we built needs attention, we get on the boat.

It starts with a walk around your walls in the island light. We schedule free on-site estimates around the ferry timetable, examine every exposure — because on San Juan Island each side of the house lives in a different climate — and deliver a scope you can trust from a contractor you can find again.

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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