uPVC window stuck fast

16 Mar 2005
Reaction score
United Kingdom
Small window at top of uPVC window in my bedroom.
The window is stuck shut.
The window locking mechanism has 4 bolts which protrude at the left edge, bottom left side, bottom right side and right edge. Two of these bolts seem to be operating OK. See below.
Turning the lever from closed to open position is very stiff. But once that is done, I find that the lock bolts on the right side have released (I can push it open half an inch). But the lock bolts on the left side of the window are still fast.

Any ideas on this?

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