Window Capping Installation in Toronto & the GTA

Century Aluminum installs window capping for Toronto homeowners dealing with peeling, rotting, or moisture-exposed wood trim. Aluminum capping provides a permanent, maintenance-free solution that eliminates repainting and protects the frame year-round. Serving Toronto, Mississauga, Oakville & the GTA. Free estimates available.

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    What Does Our Window Capping Service Include?

    Window capping is custom-fabricated aluminum, cut and formed on-site to wrap the exterior wood trim around each window—head, sill, and jambs—sealing it from weather permanently.

    Standard Window Frame Capping

    We cap the full exterior trim around standard residential windows with custom-formed aluminum. Each piece is measured and bent on-site to match the exact profile of the existing trim, with mitered corners and sealed joints so no wood is left exposed to moisture. Available in a wide range of colours to match or coordinate with your siding and fascia.

    Bay and Custom Window Capping

    Bay windows, arched windows, and other non-standard profiles require more precise fabrication. We measure and form capping pieces to fit the specific angles and curves of your window frame so the finished installation is clean and flush regardless of the window shape.

    Full-House Window Capping

    Most homeowners cap all windows at once for a consistent, finished appearance across the full exterior. We assess every window, note any underlying wood damage before installation, and complete the full house in a single visit where access allows.

    Recapping and Frame Inspection

    Where existing capping has pulled away, failed at the joins, or was originally installed poorly, we remove the old material, inspect the wood underneath for rot or moisture damage, address any structural issues, and install new custom-fitted capping that seals correctly and lasts.

    Century Aluminum - Window Capping Specialists in Toronto & the GTA

    Family-owned, 15+ years installing aluminum capping on window frames, door frames, and exterior trim across Toronto, Mississauga, Oakville, and the GTA. Every piece is custom-fabricated on-site – no stock profiles cut to approximate fit. Every installation is backed by our 3-year service warranty.

    Choose Century Aluminum For Custom - Fit Window Capping That Lasts

    Window capping only works if it is fitted and sealed correctly. We fabricate every piece on-site to eliminate gaps, exposed edges, and early failure points.

    • Family Owned and Operated Since 2011 A family-owned company that has been capping and wrapping windows on GTA homes with care and precision for over a decade.
    • 630+ Verified Homeowner Reviews More than 630 verified reviews from homeowners who trust us with exterior finishing details that affect their home’s long-term condition.
    • 15+ HomeStars Best of Awards Recognized repeatedly by HomeStars for clean, professional exterior work including trim and capping installations.
    • Thousands of Exterior Projects Completed Across the GTA Window capping is part of our comprehensive exterior offering, completed on homes throughout the Toronto area.
    • Experienced In-House Installation Crew Our own installers handle all window capping work, from measurement through final seal, with no hand-offs.
    • Fully Insured and WSIB Covered Full coverage on every window capping job, protecting your home and our crew throughout the process.
    • Vinyl Siding Institute (VSI) Certified Installer
      Lead installer oversees exterior finishing work following recognized installation standards for proper fit, fastening, and long-term performance.
    • Alu-Rex Certified Installer When window capping is part of a full exterior refresh, we can integrate certified eavestrough protection in the same project.
    • Working at Heights Certified Installers Certified for roofline and upper-floor access under Ontario working-at-heights standards.
    Homestars 5 Star e1777469453360

    Window Capping in Toronto, Mississauga & the GTA

    Painted wood window trim lasts a few seasons in Toronto before peeling and absorbing moisture. Aluminum capping ends that permanently and protects the wood underneath for decades.

    Why Choose Century Aluminum for Window Capping?

    Every capping piece is measured and hand-formed on-site to fit your exact window trim dimensions – not cut from stock and forced to fit. Corners are mitered cleanly, joints are sealed, and no wood is left exposed. Colour-matched to your exterior so the finished installation looks integrated, not added on.

    Custom-fabricated on-site for a precise fit at every window

    Wide colour range to match siding, fascia, and door capping

    All wood trim inspected for rot before capping is installed

    Signs Your Window Trim Needs Capping

    • Paint peeling or bubbling around window frames: Moisture is cycling through the wood faster than paint can bond and hold.
    • Soft or spongy wood at the frame edges: Early-stage rot that will spread to the surrounding wall framing if not addressed.
    • Visible gaps between the trim and the surrounding cladding: Water is entering behind the frame at every rainfall.
    • Hard-to-reach windows that are difficult to repaint safely: Upper-floor windows where access requires scaffolding or extension ladders every two to three years.

    Looking for Another Exterior Service for Your Toronto Home?

    Door Capping Installation Toronto

    Protect door frames with the same custom-fitted aluminum capping as your windows.

    Siding Installation Toronto

    Coordinate your window capping with new aluminum or vinyl siding across the full exterior.

    Soffit & Fascia

    Complete your roofline with aluminum soffit and fascia that matches your new window capping.

    Frequently Asked Questions About Window Capping in Toronto

    What is window capping and how does it work?

    Window capping is custom-formed aluminum sheeting that wraps the exterior wood trim around a window – head, jambs, and sill. It permanently seals the wood from moisture, UV, and freeze-thaw cycling, eliminating the need for repainting.

    Yes. We carry a wide range of aluminum colours matched to your siding, fascia, and door capping before fabrication begins. The finished result looks like part of the original exterior, not an add-on.

    Minor surface rot can be treated before capping is installed. Deep rot that has spread to the wall framing needs to be repaired first. We inspect every frame before installing and report what we find before any work begins.

    Yes. Wood trim in Toronto absorbs moisture in winter and dries in summer, causing paint to fail every two to four years. Aluminum capping seals the wood permanently and requires no future painting or maintenance.

    Yes. Century Aluminum serves residential and commercial properties throughout the GTA, including Mississauga, Oakville, and Brampton. Contact us for a free estimate.

    Protect Your Window Frames Permanently. Book a Window Capping Installation Today.

    Custom aluminum window capping from Century Aluminum ends rot, peeling paint, and seasonal maintenance. Call us today or fill out our form and we’ll get back to you within one business day.

    Service Areas

    We provide professional window capping and exterior trim services across residential neighborhoods in Toronto and the Greater Toronto Area. Our work focuses on detached, semi-detached, and townhomes in suburban communities where long-term exterior protection matters most.