Alpine Exteriors
Siding · Bellingham, WA & Whatcom County

Puget Sound Siding Contractor | Alpine Exteriors

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

Siding Around Puget Sound Is a Water Management Job

The Puget Sound region does not get the most rain in America, but it may get the most persistent test of a wall. Storms arrive off the water as wind-driven rain that hits siding horizontally, the wet season runs from October into June, and between storms the marine air stays humid enough that nothing fully dries. Salt carried on the wind corrodes fasteners near the shore, moss and algae colonize shaded north walls, and the low winter sun never reaches half the surfaces that need drying. Around the Sound, siding is not decoration over a house. It is the working skin of a water management system, and Alpine Exteriors has spent 25 years building that system correctly.

The region's housing stock makes the job more interesting. Within one ferry ride you can find 1890s Victorians, craftsman bungalows from the early 1900s, mid-century ramblers wrapped in the original cedar, 1980s homes clad in the hardboard products that famously failed, and new construction. Each generation hides its own problems behind the cladding, and after more than 2,000 projects we have opened up walls from every one of them.

What we do

Alpine siding, roofing, windows & decking.

What We Find, and How We Build Instead

Tear-offs around the Sound tell a consistent story: builder felt lapped wrong or missing entirely, no flashing above windows, butt joints left unsealed on the weather side, and sheathing stained black where trapped water sat for years. Our replacement walls answer each failure directly. A modern weather-resistive barrier goes on shingle-lapped and taped. Every window, door, ledger, and penetration gets metal or membrane flashing. Where the project allows, we add a rainscreen gap behind the siding, the single most effective upgrade for this climate, because it lets wind-driven water that gets past the surface drain out and dry instead of soaking in.

Cladding Choices That Earn Their Keep Here

  • Fiber cement, the regional standard for a reason: dimensionally stable in the damp, fire-resistant, and a long-term paint holder.
  • Western red cedar, the Sound's native cladding, beautiful and durable when detailed and maintained honestly.
  • Engineered wood, warmer-looking than cement products and far tougher than the hardboard it replaced.
  • Shingle and board-and-batten accents that fit the region's craftsman and coastal architecture.

The Difference a Careful Contractor Makes

Two crews can install the same brand of siding and build two very different walls. The difference lives in the details you cannot see at the final walkthrough: flashing laps, sealed cut edges, correct nail depth, clearances above roofs and grade that keep siding from wicking water. Those details are why we can stand behind every installation with a 25-year workmanship warranty and sleep well doing it.

It starts with a free on-site estimate. We walk the whole exterior, probe the suspect spots, explain what the wall needs in plain language, and put a firm number on it. If your paint keeps failing on the southwest side, if trim corners have gone soft, or if you can press a thumb into siding below a window, the water is already inside the wall. The right time to deal with it is before another Sound winter, and the conversation costs nothing.

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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