Basement Egress Installation


Bonded and Insured
Licence No. 20396639

Egress windows

The Building Code requires an emergency escape window in every sleeping room and in all basement dwelling units.  Basic requirements for egress windows installation are outlined below.

Size & location requirements

Egress windows must have:

  • A minimum clear openable width of 20 inches
  • A minimum clear openable height of 24 inches
  • A minimum clear openable area of 5.7 square feet (This means
    that one or both of the dimensions must be increased.)
  • A finished sill height that is not more than 44 inches above the
    finished floor

Window wells
If the emergency escape window opening is below grade, a window well must be installed on the outside of the building. The window well must:

  • Be a minimum of 36 inches wide and give access to an area that is a minimum of nine square feet with window fully open
  • Have a minimum 6-inch drop from the window sill to the ground
  • Include a ladder if the well is more than 44 inches deep