Leaking UPVC Window

4 Jan 2012
Reaction score
United Kingdom
Hi There.

My sash UPVC window is letting in water at the bottom, it appears to be coming in between the gaskets that seal the window to the frame. It is not coming in at the outside of the frame or through the glass seal.

I have stripped both gaskets off and refitted them and they look to be ok, but the water is getting past the gaskets. The window appears to be bowed from one end to the other, i was wondering if this would stop it from sealing in the middle part, or should the locking mechanism pull the window square on closure?

Any help would be appreciated please.

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