Inward-opening casement window in Gealan S 9000 Slim

In the Gealan S 9000, Slim refers to the frame depth, not to the sightline: 82.5 mm instead of 120, with the same 119 mm sightline and the same Uf 1.10. So the profile sits less far into the reveal. That helps in renovation where the internal finishes are already fixed, and in new build it gives a thinner-looking wall build-up.

The shallowest version of the Gealan S 9000: 82.5 mm frame depth, a flat face, for clean elevations.

A side-hung casement opens only one way — it turns inward on its hinges — and that is exactly why it costs less than a tilt and turn window.

A tilt and turn window has two positions: tilt (a gap at the top, secure enough to leave open overnight) and turn (fully open, also for cleaning). An inward-opening side-hung casement has only the second. That means less hardware and so a lower price, and the window stays just as easy to clean from inside. What you give up is the tilt position: there is no way to set the window to a small gap without it also being able to swing fully open.

The standard size is 1,000 × 1,400 mm, hinged on the left; in the configurator you set the size yourself, and you tell us the hinge side with your quote request. Choose a side-hung casement for a room where you rarely tilt and do value the full airflow when it's open — a store room, a garage, or a window nobody leaves on a night-time gap.

All about the Gealan S 9000 Slim profile All about the inward-opening casement window layout