A window that sags, won't stay open, or feels loose on its hinge is a common and usually inexpensive fix.
Common symptoms include the window dropping visibly at the outer corner when open, the sash feeling loose or wobbly, difficulty closing the window fully, or the friction stay (the arm that holds the window open) no longer holding position and letting the window swing shut or drift open in wind. Any of these point to hinge wear rather than a problem with the glass or frame.
Most modern casement windows use friction stays rather than simple pivot hinges — these are the folding arms that both support the window and allow it to be held open at various angles through friction in the mechanism. Over time the friction wears down, or the arm itself can bend slightly under repeated use, particularly on larger or heavier sashes.
Friction stays are sold by length and by handing (left or right), and matching the exact bracket pattern to the existing stay is essential for a straightforward swap. Taking the old stay to a supplier, or photographing the fixing pattern, avoids ordering the wrong part.
Replacing a friction stay typically involves removing the sash from the frame (or opening it fully to access the fixings), unscrewing the worn stay from both the sash and frame brackets, and fitting the new one in the same orientation. This is a manageable job for a competent DIYer with the right tools, though on larger or heavier sashes a professional fitter is recommended to avoid the glass being unsupported during the swap.
If the window frame itself has warped, or if hinges have failed on several windows of the same age simultaneously, it may indicate the frames are simply reaching the end of their serviceable life, in which case replacing the windows makes more long-term sense than repeatedly repairing hinges on ageing frames.
If the window sags or wobbles specifically at the hinge side while the rest of the frame looks square and undamaged, the hinge or friction stay is the likely culprit rather than the frame itself.
Smaller sashes are manageable for a confident DIYer with the correct replacement part, but larger or heavier windows are best handled by a professional fitter, since the glass needs to be safely supported during the process.
It is one of the less expensive window repairs, particularly compared to full sash or unit replacement, since it involves only a small mechanical part rather than any glass.
Not necessarily — an isolated hinge failure on one window is usually just wear on that part. It's only a sign to consider full replacement if several windows of the same age are failing at once.
A window that won't lock is a security risk — most causes are mechanical and fixable without replacing the whole unit.
A window that's become a struggle to open is rarely broken beyond repair — usually it just needs cleaning, adjusting or lubricating.
A door that scrapes the frame or is hard to lock hasn't broken — it has simply dropped, and it can usually be adjusted back.
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A bi-fold door that jams or won't glide is almost always a track or roller issue rather than a fault with the panels themselves.
Contact us with the make and age of your windows and we'll advise whether a hinge repair or a fuller inspection makes sense.
