Windows, plumbing & mechanical

What's the purpose of adding Egress windows to your basement.

· Barrie Basement Suites

Illustration used with the article “What's the purpose of adding Egress windows to your basement.”.

Main purposes:

  • Emergency escape: They provide a way for people inside—especially in basements or bedrooms—to get out quickly if doors or hallways are blocked.

  • Firefighter access: They allow emergency responders to enter the home from outside if needed.

  • Legal safety requirement: Building codes in places like Ontario require egress windows in certain rooms (like basement bedrooms) to make those spaces legally livable.

Where you usually see them:

  • Basement bedrooms

  • Finished basements

  • Any sleeping area without direct door access to the outside

Key features:

  • Large enough opening for a person to climb through

  • Easy to open without tools or keys

  • Often paired with a window well (for below-ground basements)

Why they matter:

Without an egress window, a basement bedroom can become a trap in a fire or emergency, which is why they’re strictly regulated.

If you want, I can tell you the exact size requirements for Ontario or help you figure out if your window qualifies.

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