Who casement windows genuinely suit, and who they do not
- Inter war and post war semis where the original layout was always a casement
- Rooms that need a controllable opening for ventilation without a full tilt and turn
- Openings where an escape sized sash is required by the regulations
- Anywhere a clean, familiar look matters more than a design statement
- Every extra opener adds cost, so opening every light out of habit is the most common way a quote inflates
- Outward opening sashes need clearance, which is worth checking above a path, a driveway or a conservatory roof
- Cleaning a first floor casement from inside depends on an easy clean hinge being specified, it is not automatic
