Inward-opening casement window in K-vision Trend

On the K-vision Trend the sash sits back from the outer frame. From outside you mainly see the frame and much less of the joint between fixed and opening parts — an opening window and a fixed one look very alike. The profile comes from Kömmerling's K-vision system: 120 mm deep, Uf 1.20 W/m²K, 130 mm sightline and room for 48 mm glass as standard. For replacement and new build, with or without a rebate.

A K-vision (Kommerling) uPVC window with a recessed opening sash, so the window looks calmer from outside.

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 K-vision Trend profile All about the inward-opening casement window layout