Window Replacement Calgary
“Tired of poor service? Give us a try!”
Around the Clock Glass installs replacement windows for Calgary homes and commercial buildings. Whether you need to replace a single failed unit or upgrade every window in your property, our glaziers handle the full scope — from measurement and glass selection through installation and disposal of old units. We specialize in double-pane and triple-pane insulated glass units built for Alberta’s extreme temperatures.
When Calgary Properties Need Window Replacement
Not every damaged window needs full replacement. But certain conditions make replacement the smarter long-term investment over repair. We recommend window replacement when the frame is structurally compromised (rot, warping, or corrosion that prevents a proper seal), when you’re upgrading from single-pane to double-pane or triple-pane for energy savings, when the existing windows are beyond their service life (typically 15–25 years for sealed units), or when you’re renovating and need windows that meet current Alberta Building Code standards.
Double-Pane Window Replacement
Most Calgary homes built after 1980 use double-pane insulated glass units (IGUs). When the seal between panes fails, moisture enters the cavity and creates a permanent fog. Replacing the sealed unit — not the entire window assembly — is the most cost-effective solution. Our replacement IGUs use argon gas fill and Low-E glass coatings, which reduce heat loss by up to 30% compared to standard double-pane units.
Triple-Pane Window Upgrades
For maximum energy performance in Calgary’s -30°C winters, triple-pane windows provide the highest insulation value. Triple-pane IGUs with dual Low-E coatings and argon or krypton gas fill achieve R-values of 5–8, compared to R-2 for standard double-pane.
Full-Frame Window Replacement
When the window frame itself is damaged, a full-frame replacement removes the entire window assembly — frame, sash, and glass — and installs a new complete unit. This is necessary when wood frames have rotted through, vinyl frames have cracked or warped beyond repair, or the window opening needs resizing for a renovation. We install casement, awning, single-hung, double-hung, slider, and fixed picture windows.
Window Replacement Options in Calgary
The Gallery of Glass
Showcasing our precision in shower enclosure engineering and architectural mirror design for the region’s top developers.
We Have All Types of Glass to Meet Your Glass Needs!
From emergency board-ups to custom architectural glass, our team has the inventory, expertise, and rapid response to handle any glass requirement — residential or commercial, large or small.
Trusted by Thousands in Calgary
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Get Your Free Quote Today
Submit your project details and receive a transparent, no-obligation estimate. For emergencies, call our hotline directly.
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Emergency Line (403) 205-2604
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Operating Hours 24 Hours / 7 Days
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Service Area Calgary & Surroundings
Frequently Asked Questions
Window replacement timelines vary depending on the type of window, the number of units, supplier availability, season, and current scheduling. Once we review the project details and confirm what is required, we can provide a more accurate timeline for your specific job.
Replacing glass within existing frames does not require a permit. Full-frame replacement in the same opening size does not require a permit. Changing the window opening size requires a building permit from the City of Calgary.
Sealed unit replacement swaps only the glass panel while keeping the existing frame. It’s faster and less expensive. Full window replacement removes the entire assembly — frame, sash, and glass — and installs a completely new window unit.
Yes. We source replacement windows in casement, awning, single-hung, double-hung, slider, picture, and specialty shapes. We match frame colour, hardware finish, and grid patterns to your existing windows.
Get Your Free Quote Today
Submit your project details and receive a transparent, no-obligation estimate within 2 hours. For emergencies, call our hotline directly.