Window Hinge Repairs Muswell Hill | uPVC Window Hinge RepairMuswell Hill window hinge repair. Timber, aluminium and uPVC window hinges repaired and replaced. Friction stays replaced. Call 020 8535 7118 for free quotation.·repairmywindowsanddoors.co.uk·Dec 2, 2025Window Hinge Repairs Muswell Hill | uPVC Window Hinge Repair