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Broken Window Mechanism

A broken window mechanism is one of the most common faults with UPVC and aluminium windows. The gearbox or espagnolette handle wears out over time, leaving the window stuck open, stuck shut, or unable to lock securely. This is both a security risk and an energy waste issue, as an unsealed window lets heat escape and draughts in.

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What to Do If You Have a Broken Window Mechanism

A broken window mechanism is one of the most common faults with UPVC and aluminium windows. The gearbox or espagnolette handle wears out over time, leaving the window stuck open, stuck shut, or unable to lock securely. This is both a security risk and an energy waste issue, as an unsealed window lets heat escape and draughts in.

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