Window replacement

Window Replacement Cost in Canada: Count Is Only the Start

A window count is useful, but it does not describe size, operation, glazing, installation method or exterior finishing. Those details decide whether two quotes are comparable.

2026 planning examples

Window-count exampleModel planning range
4 windows · standard · no opening changes$2,800–$6,300
8 windows · standard · no opening changes$5,500–$12,700
12 windows · standard · no opening changes$8,300–$19,000

Canada-average model examples using standard selections unless stated otherwise. Rounded to the nearest $100; taxes are not automatically added.

List every opening

Record approximate width, height and operating style. A small fixed window, casement, slider, bay and egress window should not share one assumed unit price.

Insert and full-frame are different scopes

An insert installation retains more of the existing frame. Full-frame replacement can address frame condition and change exterior/interior finishing, but usually requires more labour and materials.

Glazing and performance need specifications

Ask for the exact glass package, coatings, spacers, frame material and performance rating. For energy decisions, use product documentation and an EnerGuide evaluation rather than a generic savings promise.

Opening changes need separate review

Enlarging or relocating an opening may involve structure, cladding, interior repair and permits. The calculator only applies a broad factor; it cannot inspect a wall.

About the numbers on this page

Dollar examples are rounded outputs from Home Cost Canada’s editorial planning model, not observed contractor quotes or official government price lists. Review the assumptions and limitations before using them.

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Planning information only. Confirm scope, permits, site conditions, tax and final pricing with qualified local professionals.