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Why Is My UPVC Window Hard To Open Or Close? Common Causes And Fixes

A close up of a mans hand opening a window to a back garden.

If your UPVC window has become stiff, difficult to open, or won’t close properly, it’s a common issue—and one that often worries homeowners unnecessarily. Many people assume the entire window needs replacing, when in reality, most problems can be resolved with targeted repairs. This guide explains why UPVC windows become hard to open or close, […]