Your Trusted Siding, Roofing, Decking, Windows, Exterior Contractor in Snohomish County, WA

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

Alpine Siding Pros proudly serves all of Snohomish County, WA with professional roofing, siding, window, and decking solutions. Drawing on two decades of Pacific Northwest expertise, we deliver resilient installations, advanced waterproofing, and courtesy rot repair. Count on clear estimates, responsive communication, and craftsmanship built to withstand the county’s diverse climates and building styles.

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Why Choose us

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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.

James Hardie’s Highest Performing Contractor for Over 2 Decades – With Hundreds of Jobs to Prove it!
Lead Certified & Tyvek Certified
Backed by a 25-Year Workmanship Warranty – Best in Town GUARANTEED!
The ONLY Exterior Company in Whatcom County with a Full Showroom
Proud Partner of Hover – Bringing Your Home’s Vision to Life with 3D Design Tools
A Perfect 5-Star Rating on BBB, Google, Yelp, GuildQuality, Angi & More
We Support Local – Volunteering, Charity Work & Investing in Our Community

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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Our Services

County-Wide Roofing Solutions

Alpine Siding Pros installs premium asphalt shingles and standing-seam metal roofs designed for Snohomish County’s heavy rains, occasional snow, and coastal winds. Our certified crews perform comprehensive deck inspections, apply industrial-grade underlayment, and seal flashings with corrosion-resistant sealants to prevent leaks and ice dams.

We begin every project with a structural assessment to uncover hidden rot or framing damage—courtesy rot repair is available at a nominal fee. Backed by manufacturer warranties and our on-time completion guarantee, your new roof will safeguard your home and elevate its curb appeal for years.

All-Weather Siding Installations

Refresh your Snohomish County property with low-maintenance vinyl, fiber cement, or engineered wood siding. Our installers align trim with laser precision, install continuous waterproofing membranes, and expertly caulk all seams to block moisture, drafts, and pests in the region’s varied microclimates.

Each siding job starts with 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—boosting both longevity and home value.

Energy-Efficient Window Upgrades

Alpine Siding Pros installs ENERGY STAR®-rated double- and triple-pane vinyl or fiberglass windows engineered for Snohomish County’s diverse weather. Our precise measurements and advanced sealing methods eliminate drafts, reduce condensation, and improve thermal performance year-round.

We evaluate existing frames and flashing before careful removal of old units, then perform a meticulous cleanup. Enjoy lower energy bills, superior soundproofing from traffic or ferry noise, and clear views of the Cascades or Puget Sound.

Custom Deck Construction Across the County

Extend your outdoor living with a bespoke deck from Alpine Siding Pros. We design and build decks using pressure-treated lumber, high-performance composite boards, or marine-grade hardwoods rated for local moisture conditions. Our crews adhere to Snohomish County code for proper joist spacing, ledger attachment, and drainage.

From simple platforms to multi-level entertainment areas, we select corrosion-resistant fasteners and low-maintenance finishes. The result is a safe, durable deck that enhances your property’s value and provides years of outdoor enjoyment.

Why Alpine Siding Pros Excels in Snohomish County

With 20 years of Pacific Northwest expertise, Alpine Siding Pros understands Snohomish County’s varied environments—from coastal shores to mountain foothills. Our Bellingham-based team partners with Washington suppliers to source premium roofing, siding, window, and decking materials—ensuring rapid delivery and local support. We provide transparent bids, manufacturer warranties, and community-focused service, completing every project on time, on budget, and built to last.

Holistic Building Envelope Integration

We treat your home’s exterior as a unified system—coordinating roofing, siding, windows, and decking to block water and air infiltration. Our crews install high-performance vapor barriers, precision flashings, and premium sealants at every critical junction. 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

Integrity is our hallmark. At Alpine Siding Pros, rot repair is quoted separately as a courtesy—charged only if hidden decay is discovered. Every estimate line-items materials, labor, and any remediation so Snohomish County homeowners never face surprise fees. This transparency lets you budget confidently and ensures your project stays on schedule and on budget.

Local Partnerships & Community Commitment

As a locally owned Bellingham contractor, we partner with Washington-state manufacturers and suppliers—supporting the regional economy while ensuring prompt access to premium materials. Our crew lives in the communities we serve, understands local codes and permit processes, and respects neighborhood character. From minor repairs to full recladding, we communicate openly, adhere to timelines, and treat your property with care—building lasting relationships one home at a time.