How much do contractors charge for single window replacement in Calgary?

Single window replacement in Calgary typically costs $400-$1,200 per window installed, depending on the window type, size, and installation complexity. Most homeowners pay around $600-$800 for a standard vinyl replacement window with professional installation.

Window pricing breaks down into several key factors. For basic vinyl replacement windows, expect $300-$600 per window for standard sizes (36" x 48" or similar). Mid-range vinyl or aluminum-clad wood windows run $500-$900, while premium options like fiberglass or solid wood can reach $800-$1,500+ per window. Installation labor typically adds $150-$300 per window, depending on accessibility and whether any framing modifications are needed.

Calgary's extreme climate significantly impacts window selection and pricing. Windows must be rated for Alberta's temperature extremes (-30°C winters, chinook temperature swings of 20-30°C in a single day). Look for windows with low U-values (0.25 or lower) and high-performance glazing packages. Triple-pane windows are increasingly popular in Calgary, adding $100-$200 per window but providing better insulation and condensation control during our harsh winters.

Installation complexity affects the final cost considerably. Simple replacement windows (same size, no structural changes) are the most affordable option. However, older Calgary homes often need additional work - rotted sills are common due to our freeze-thaw cycles, and homes built before 1980 may need framing modifications to accommodate modern window sizes. If the contractor discovers structural issues, water damage, or needs to modify the rough opening, costs can increase by $200-$500 per window.

Permit requirements depend on the scope of work. Simple like-for-like window replacement typically doesn't require a building permit in Calgary. However, if you're changing window sizes, adding new windows, or doing structural modifications, you'll need permits through the City of Calgary (311 or calgaryplanningpermit.ca). Permit costs are usually $100-$300 for residential window projects.

Energy efficiency rebates can offset some costs. The Canada Greener Homes Grant provides up to $5,000 for eligible home energy retrofits, including high-efficiency windows. You'll need before-and-after EnerGuide evaluations, but window replacements often qualify for $250-$500 per window in rebates when part of a comprehensive energy upgrade.

For the best value, get quotes from multiple contractors and verify they're properly licensed. All contractors should carry WCB Alberta coverage and liability insurance. Window installation may seem straightforward, but proper flashing, air sealing, and weatherproofing are critical in Calgary's climate - poor installation can lead to water damage, ice damming, and energy loss.

Browse verified window contractors in our Calgary Construction Network directory to find licensed professionals who understand Alberta's building requirements and climate challenges.