Garage Door Replacement Cost in Montreal (2026)

For attached garages in Montreal, experts recommend an R-value of at least R-12 to R-16. Upgrading from a non-insulated door to an R-16 polyurethane-insulated door typically adds $300–$600 to the project cost but can save up to $150 annually on heating.

In most Montreal boroughs, a simple 'like-for-like' replacement does not require a permit. However, if you are enlarging the opening or changing the structural lintel, a permit is mandatory and costs between $100 and $250 depending on the borough.

Montreal's heavy use of road salt makes aluminum doors a premium choice ($3,000–$6,000) due to their natural rust resistance. If choosing steel, ensure it has a high-quality galvanized coating and a baked-on polyester finish to prevent corrosion at the bottom panel.

A standard 8'x7' single door installation averages $1,800–$2,500, while a 16'x7' double door typically ranges from $3,200–$5,500. Choosing two single doors instead of one double door usually increases the total cost by 15-20% due to the need for two openers and additional framing.