My basement bedroom windows don't meet egress code. Can I fix this without tearing up the whole foundation?

Yes, you can often upgrade basement bedroom windows to meet egress code without major foundation work, but it depends on your current window size and basement ceiling height. The key is determining whether your existing window openings can be enlarged or if new openings need to be cut.

Understanding Alberta's Egress Requirements

Under the Alberta Building Code, basement bedrooms must have egress windows with a minimum opening of 3.8 square feet (0.35 square meters) and no dimension less than 15 inches (380mm). The window sill can't be more than 5 feet (1.5m) above the floor, and there must be a clear path to grade or a window well that meets specific size requirements.

Most Calgary homes built before the 1990s have basement windows that are too small for egress. The good news is that many existing window openings can be enlarged without compromising the foundation's structural integrity. A structural engineer can assess whether your foundation walls can accommodate larger openings. Concrete block foundations are often easier to modify than poured concrete, but both can usually be enlarged with proper reinforcement.

Calgary-Specific Considerations

Calgary's expansive clay soils and deep frost line (4+ feet) make foundation work more complex, but window enlargement is still very doable. The process typically involves cutting the concrete, installing a new lintel beam above the opening, and waterproofing the enlarged opening. Since Calgary basements are often 7-8 feet high, you'll likely have adequate ceiling height to meet the sill height requirements.

You'll need a building permit from the City of Calgary (apply at calgaryplanningpermit.ca) and the work must be inspected. The permit process typically takes 2-4 weeks for this type of renovation. Expect to pay $8,000-$15,000 per window for professional enlargement, including the new egress window, well, and proper drainage.

Professional vs DIY Approach

This is definitely professional work - cutting foundation walls requires structural knowledge, and improper waterproofing in Calgary's clay soils can lead to serious water problems. A structural engineer should assess the foundation first ($500-$800), then hire a qualified foundation contractor who understands Calgary's soil conditions.

Next Steps

Start by measuring your current windows and basement ceiling height, then contact a structural engineer to assess feasibility. If enlargement isn't possible, you may need to consider converting the space to a non-bedroom use or exploring other egress options like walkout access.