Do I need a permit for egress window installation in Calgary?

Yes, you absolutely need a building permit for egress window installation in Calgary — cutting an opening in a foundation wall is a structural modification that requires City of Calgary approval and inspection by a Safety Codes Officer. Skipping this permit is one of the most consequential shortcuts a homeowner can take, and the City of Calgary actively enforces permit requirements for basement work.

The permit process for egress windows in Calgary involves submitting plans to the City of Calgary's planning and development department showing the proposed window location, the structural support (steel lintel specifications), the window dimensions, and the window well details. You'll need to demonstrate that the window meets Alberta Building Code egress requirements: a minimum unobstructed opening of 3.77 square feet, minimum width of 15 inches, and maximum sill height of 39 inches from finished floor. Permit fees for egress window installation are typically $200 to $500 depending on the scope, and approval timelines run approximately 2 to 4 weeks.

Once the permit is issued, the work must be inspected at specific stages. A framing inspection verifies that the structural lintel is properly sized and installed, and a final inspection confirms the window, well, and drainage meet code. These inspections are performed by Safety Codes Officers accredited through the Safety Codes Council. If an inspection fails, the contractor must correct the deficiency and schedule a re-inspection before proceeding.

The consequences of skipping the permit are substantial. If the City of Calgary discovers unpermitted structural work — through a neighbour complaint, during a future renovation permit application, or when you sell your home — they can issue a stop-work order and require you to either obtain a retroactive permit (which means exposing finished work for inspection) or remove the non-compliant work entirely. Unpermitted egress windows also create problems at sale: the buyer's lawyer will check permit records, and unpermitted structural modifications can derail a transaction or require significant price reductions. Your home insurance may also exclude coverage for damage related to unpermitted work.

If you're doing the egress installation as part of a larger basement development, the egress window work will typically be included in the overall basement development permit rather than requiring a separate application. Your contractor should handle the permit application as part of their scope — any contractor who suggests skipping permits should be avoided. The permit cost of a few hundred dollars is trivial compared to the $2,500 to $6,000 total cost of a properly installed egress window. Need help finding a basement contractor? Calgary Basement Remodeling can match you with local professionals for free through the Calgary Construction Network.