Egress window installation across San Diego County

California Building Code section R310 requires every sleeping room to have at least one operable window or door that provides a minimum 5.7 square feet of clear opening area (5.0 sq ft for ground floor), a minimum clear height of 24 inches, a minimum clear width of 20 inches, and a maximum sill height of 44 inches from the finished floor. The window must be openable from the inside without a key, tool, or special knowledge.

California code requires at least one egress window or exterior door in each sleeping room. Pre-1978 San Diego homes often have bedroom windows that are smaller than current code requires, particularly on the upper floors or in rooms that were converted from other uses. If you are selling the home or adding a legal bedroom, the window needs to meet current code.

It depends on the existing rough opening. If the opening is already large enough to fit an egress-compliant unit, the work is a standard window replacement. If the opening needs to be enlarged, the crew frames a new rough opening with an appropriately sized header and potentially new king studs, then installs the larger egress unit. This is structural work and always requires a permit.

A straightforward egress window replacement where the rough opening is already large enough runs $700-$1,000 installed. A job that requires enlarging the rough opening, reframing a header, and patching exterior stucco lands at $1,000-$1,500 per window. Verify contractor license status at cslb.ca.gov before signing any contract.

San Diego County has very few true basements because of the climate and soil conditions, but in the rare cases where a below-grade bedroom window is being installed, California code requires a window well with minimum dimensions to allow egress. The well must also have a ladder or steps if it is more than 44 inches deep. This work is typically permitted separately from the window itself.