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When to Call in a Professional for Window Hinge Repairs Window hinges are important for home safety and energy efficiency. They stop accidental window sagging and allow for the ease of opening. A good way to maintain your window hinges is to keep them clean and lubricated. This will also prolong their life and performance. Window hinges are essential components of any uPVC or aluminium windows. They are susceptible to damage or worn out with time. Damage If your hinges on your windows begin to exhibit