Recently purchased an older home in SE Calgary. After tearing out dry-wall I found major damage to the foundation around a window. Apparently the previous owner used a sledge-hammer to create a window opening. At the moment three joist appear unsupported - no sagging evident.
My plan is to place an egress window in this location. When I have the concrete cut and repaired I intend to place a header above the window supported by foundation.
My building permit does not require an engineering report, however I think this might be prudent.