How much does it cost to widen my garage door opening from a single to a double in Ottawa?

Widening a garage door opening from single to double in Ottawa typically costs $8,000 to $18,000 depending on whether it's an attached or detached garage and the structural complexity involved. This includes cutting the new opening, installing a proper header beam, framing the wider opening, siding or brick work to match the existing exterior, and installing the new double garage door.

The cost breakdown varies significantly based on your garage type and construction. For a detached garage with wood siding, expect the lower end of the range since the structural work is straightforward and exterior patching is relatively simple. Attached garages cost more because the work affects the house structure and may require engineered headers to support the load above. If your garage has brick or stone exterior, add $3,000 to $6,000 for masonry work to properly match the existing materials. The new double garage door itself runs $2,000 to $5,000 installed, depending on insulation level and style.

Structural considerations are critical in Ottawa because the header beam must support not just the wall load above but also Ottawa's substantial snow loads. The Ontario Building Code requires engineered headers for openings this wide, and cutting corners on structural support can lead to sagging, cracking, and door operation problems. You'll need a building permit from the City of Ottawa for this work since it involves structural modifications.

The project requires coordinating multiple trades - a structural engineer for header design, framing contractors for the opening work, siding or masonry specialists for exterior finishing, and garage door installers. Winter scheduling can be challenging since exterior work needs decent weather conditions. Many contractors prefer to tackle these projects in late spring through early fall when they can work efficiently on both interior framing and exterior finishing.

If you're considering this upgrade, you can browse experienced garage contractors through the Ottawa Construction Network directory to get detailed quotes that account for your specific garage construction and exterior materials.