Dropped UPVC door — key won't turn
The single most common UPVC callout across Paisley. Over years of use, hinges settle and the door drops a few millimetres — the multipoint hooks no longer align with the keeps and the key physically can't rotate. We often see communal close entry lock seizure on tenement blocks in Paisley Cross and West End as a related signal. Hinge adjustment + strike plate realignment usually fixes it without replacing hardware.
Our approach Adjust hinges and realign keeps first; replace gearbox or cylinder only if mechanical damage is present.