Window Services for Northwest Washington

Serving Whatcom, Skagit, Snohomish, San Juan, and Island counties, Topside Roofing & Siding delivers expert residential window services designed to improve both the look and performance of your home. From replacing drafty windows to installing stylish upgrades, we help homeowners choose the best fit for long-term energy savings and curb appeal.

Why Upgrade Your Windows?

Windows do more than frame the outdoors—they influence your home’s energy efficiency, comfort, and design. Whether you’re updating outdated windows or planning a full remodel, our team can help you find high-performing options with modern style and trusted durability.

  • New windows help regulate your home’s internal temperature by minimizing heat loss in the winter and reducing heat gain in the summer. This improved energy efficiency can lead to significant savings on your monthly utility bills.

  • Upgraded windows are designed with tighter seals and advanced materials that eliminate unwanted drafts. They also serve as a sound barrier, making your home noticeably quieter by reducing street and neighborhood noise.

  • Modern window options come in a variety of frame finishes, grid patterns, and designs to match any home exterior. Installing new windows can instantly refresh your home’s look and boost its overall aesthetic appeal.

  • New windows are often larger and more strategically placed to maximize sunlight, creating brighter and more inviting interiors. Their modern appearance and energy efficiency features can also raise your property’s resale value.

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35 years as the best roofing company in bellingham
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#1 Consumer Choice in the PNW

A+ Ratings on the BBB

Over 10k Satisfied Customers

35+ Years in Business

  • PNW Window Replacement

    Replacement

    We remove outdated, inefficient windows and replace them with modern, energy-efficient models. This upgrade improves insulation, reduces energy bills, and enhances your home's overall comfort and value.

  • PNW Window Installation

    Installation

    We install new construction windows with precision, ensuring proper sealing and integration into the building structure. Our weatherproofing techniques protect against moisture, drafts, and long-term damage, delivering lasting performance and efficiency.

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monthly payment options for construction

HEARTH

MONTHLY PAYMENT OPTIONS

60-second pre-qualification. Does not affect credit score.

Your Trusted Window Installation Experts

With over 25 years of experience, our team brings unmatched craftsmanship and attention to detail to every window installation. This depth of expertise ensures each project is completed with precision, giving homeowners lasting performance and peace of mind.

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Our Window Brands

We carry trusted window manufacturers known for innovation, performance, and beauty

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Let the Light In—with Confidence

Topside Roofing & Siding is your go-to expert for reliable, beautiful windows that stand up to Northwest weather. Whether you're replacing a few windows or reimagining your whole home, we’re here to help.

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Top-Rated Roofing Experts in Washington

We put customer satisfaction at the heart of every roofing project. Whether you're tackling a full replacement or fixing a small leak, our team brings trusted service and craftsmanship that’s earned us recognition across the region. Let us take the stress out of your next roofing job.

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Additional Services

  • Bellingham Siding company

    Siding

    Fresh siding gives your home a clean, updated look while helping to lower energy bills and shield the exterior from the elements.

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  • certainteed skylight bellingham

    Skylights

    New skylights bring in natural light, improve ventilation, and enhance your home’s design.

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  • whatcom roofing pros

    Roofing

    Proper roofing prevents water damage and ensures a longer lifespan for your home.

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  • bellingham custom decks

    Decks

    A well-built deck adds outdoor living space, boosts home value, and enhances overall curb appeal.

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  • whatcom gutter services

    Gutters

    New gutters improve drainage, protect your foundation, and boost curb appeal.

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