Your Trusted Siding, Roofing, Decking, Windows, Exterior Contractor on San Juan Island, WA

Trusted for Over 450 verified 5 star reviews and 1750 + jobs

 Alpine Siding Pros delivers specialized roofing, siding, window, and decking solutions on San Juan Island, WA. Leveraging two decades of Pacific Northwest and island-region expertise, we provide durable installations, advanced waterproofing, and courtesy rot repair. Expect clear estimates, responsive communication, and craftsmanship engineered to withstand salt-air, ferry-borne wind, and seasonal rains.

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Our top-rated siding company specializes in James Hardie siding, siding replacement, and exterior upgrades for lasting durability and curb appeal.

A REPUTATION OF EXPERIENCE, QUALITY, AND TRUST

Washingtons Elite Preferred James Hardie Siding Contractor
Serving Whatcom and surrounding counties for over 22 years!

Top-Rated Siding Company Bellingham, WA
Siding Contractors Bellingham

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Gaf timberline hdz, roof installation – 1446 gulf blvd, clearwater, fl 33767 (clearwater beach)

Harbor-Ready Roofing on San Juan Island

Alpine Siding Pros installs premium asphalt shingles and standing-seam metal roofs formulated to resist San Juan Island’s salt-laden air, heavy rains, and wind gusts. Our certified crews conduct a thorough deck inspection, apply marine-rated underlayment, and seal flashings with corrosion-resistant sealants to prevent leaks and ice dams.

Before installation, we perform a full structural assessment to uncover hidden rot or framing damage—offering courtesy rot repair at a nominal fee. Backed by manufacturer warranties and our on-time completion guarantee, your new roof will protect your home and maintain its island curb appeal for decades.

Mukilteo hoa siding removal and fiber cement installation project

Salt-Air Resistant Siding Installations

Alpine Siding Pros installs premium asphalt shingles and standing-seam metal roofs formulated to resist San Juan Island’s salt-laden air, heavy rains, and wind gusts. Our certified crews conduct a thorough deck inspection, apply marine-rated underlayment, and seal flashings with corrosion-resistant sealants to prevent leaks and ice dams.

Before installation, we perform a full structural assessment to uncover hidden rot or framing damage—offering courtesy rot repair at a nominal fee. Backed by manufacturer warranties and our on-time completion guarantee, your new roof will protect your home and maintain its island curb appeal for decades.

Stanwood board batten vinyl windows exterior update sherwin williams

Salt-Air Resistant Siding Installations

 Refresh your San Juan Island home with low-maintenance vinyl, fiber cement, or engineered wood siding. Our installers achieve millimeter-perfect trim alignment, install continuous waterproofing membranes, and expertly caulk every seam to block moisture, drafts, and salt intrusion in the maritime environment.

Each siding project begins with rigorous substrate and sheathing inspections. By pairing top-tier materials with our perfected moisture-barrier techniques, we deliver an energy-efficient, mold-resistant exterior that endures UV exposure and temperature swings—enhancing both longevity and seaside charm.

Roofing installation, architectural shingles, replacement – 421 umatilla dr, la conner, wa 98257

Custom Coastal Decking Solutions

Extend your outdoor living with a bespoke deck from Alpine Siding Pros. We design and build decks using pressure-treated lumber, composite materials, or marine-grade hardwoods rated for salt-air and moisture. Our teams adhere to local code for proper joist spacing, ledger attachment, and drainage.

From simple viewing platforms to multi-level entertainment areas with corrosion-resistant fasteners and low-maintenance finishes, we deliver a safe, durable deck that maximizes your San Juan Island home’s waterfront lifestyle.

Why Alpine Siding Pros Excels on San Juan Island

Alpine Siding Pros combines 20 years of Pacific Northwest and island-region expertise with a deep understanding of San Juan Island’s coastal-foothill environment and architectural character. Our Bellingham-based team partners with Washington suppliers to source premium roofing, siding, window, and decking materials—ensuring rapid delivery and local support. We deliver transparent bids, manufacturer-backed warranties, and community-focused service for every project.

(Siding, Roofing, Windows, Decking, Painting, etc..)

Mastering the Building Envelope

We treat your home’s exterior as one integrated system—coordinating roofing, siding, windows, and decking to form a seamless barrier against moisture and air infiltration. Our crews install high-performance vapor barriers, marine-grade flashings, and premium sealants at all critical junctions. By inspecting and reinforcing underlying sheathing and framing, we prevent rot and mold before they start, maximizing energy efficiency and indoor comfort.

Transparent Pricing & Courtesy Rot Repair

Honesty is our hallmark. Rot repair is quoted separately as a courtesy—charged only when hidden decay is uncovered. Every estimate line-items materials, labor, and any remediation so you never face surprise fees. This transparency lets you budget confidently and ensures your exterior project stays on schedule and on budget.

Local Partnerships & Island Community Focus

As a locally owned Bellingham contractor serving San Juan Island, we partner with Washington-state manufacturers and suppliers—supporting the regional economy while securing premium materials. Our crew lives nearby, understands island permit processes, and respects local aesthetics. From minor repairs to major recladding, we communicate openly, adhere to timelines, and treat your property with care—building lasting relationships one island home at a time.