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How to Diagnose and Repair UPVC Door Issues Upvc doors are a sought-after design element in modern architecture due to their strength and energy efficiency. Like any other fixture Upvc doors are susceptible to developing problems that require repairs to ensure proper function. Plastic filler that has low shrinkage can be used to repair minor cracks. Hinges that aren't aligned properly can also be realigned in order to restore their functionality. Scratches and cracks Despite their minor appearance, scuffs and scratc