Your Trusted Siding, Roofing, Decking, Windows, Exterior Contractor in Columbia, WA

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

Alpine Siding Pros proudly serves Columbia, WA with top-quality roofing, siding, window, and decking solutions. With 20 years of regional expertise, we deliver durable installations, waterproofing, courtesy rot repair. Our transparent pricing and responsive communication ensure your exterior project is completed on time and on budget, delivering results that last.

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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

Dependable Roofing Solutions in Columbia

Alpine Siding Pros installs weather-resistant asphalt shingle and standing-seam metal roofs tailored for Columbia’s seasonal rains and winds. Our certified crews conduct thorough deck inspections, apply premium underlayment, and expertly seal flashings to prevent leaks and ice dams.

Every roofing project begins with a structural assessment to identify hidden rot or sheathing damage—offering courtesy rot repair at a nominal fee. Backed by manufacturer warranties and our commitment to on-time completion, your new roof will protect your home and enhance curb appeal for decades.

Durable Siding Installations in Columbia

Transform your Columbia home’s exterior with low-maintenance vinyl, fiber cement, or engineered wood siding. Our installers align trim with laser precision, install continuous waterproofing membranes, and caulk every joint to block moisture and drafts.

Each siding job starts with substrate evaluation and detailed sheathing inspection. By combining premium materials with perfected water-barrier techniques, we deliver an energy-efficient, mold-resistant exterior that endures UV exposure and temperature swings—boosting both durability and aesthetic appeal.

Energy-Efficient Windows for Columbia Homes

Upgrade to ENERGY STAR®-rated double- and triple-pane vinyl or fiberglass windows installed by Alpine Siding Pros. Our precise measurements and advanced sealing methods eliminate drafts, reduce condensation, and improve thermal performance in Columbia’s variable climate.

We assess existing frames and flashings, remove old units carefully, and perform a meticulous cleanup. Enjoy lower utility bills, superior soundproofing, and unobstructed views of the surrounding landscape.

Custom Decking Solutions in Columbia

Extend your outdoor living with a bespoke deck from Alpine Siding Pros. We design and build decks using pressure-treated lumber, composite materials, and hardwoods rated for moisture resistance. Our installers follow local code for joist spacing, ledger attachment, and proper drainage.

From single-level platforms to multi-tier entertainment areas, we select corrosion-resistant fasteners and low-maintenance finishes. The result is a safe, durable deck that enhances your Columbia home’s value and enjoyment year-round.

Why Alpine Siding Pros Excels in Columbia

Alpine Siding Pros merges 20 years of regional exterior contracting expertise with deep knowledge of Columbia’s climate. Our Bellingham-based team partners with Washington suppliers for premium roofing, siding, windows, and decking materials—ensuring rapid delivery and local support. We provide transparent bids, manufacturer-backed warranties, and dedicated community-focused service, guaranteeing every project is completed on time, on budget, and built to last.

Mastering the Building Envelope

We treat your home’s exterior as an integrated system—coordinating roofing, siding, windows, and decking to form a seamless barrier against moisture intrusion and air leaks. Our crews install high-quality vapor barriers, durable flashings, and premium sealants at all critical junctions. By inspecting and repairing underlying sheathing and framing, we prevent rot and mold before they start and maximize energy efficiency and indoor comfort in Columbia’s climate.

Transparent Pricing and Rot Repair

Hidden fees erode trust. At Alpine Siding Pros, we separate rot repair from core services—charging only a small courtesy fee when replacing damaged sheathing or framing. Every bid itemizes materials, labor, and any rot remediation so Columbia homeowners never face surprise invoices. This transparency allows you to budget confidently and ensures your project stays on schedule and on budget.

Local Partnerships and Community Commitment

As a locally owned Bellingham contractor, we partner with Washington-based manufacturers and suppliers—supporting the regional economy while securing premium materials for your Columbia project. Our crew lives in the communities we serve, understands local building codes, and respects neighborhood character. Whether tackling a small repair or a major recladding project, we communicate openly, adhere to schedules, and treat your property with utmost care—building lasting relationships one project at a time.