Stiff sash lock on a Victorian and Edwardian terraced house
Common on Victorian and Edwardian terraced houses across Dudley — the timber door has moved seasonally and the mortice case has bound against the keep. We often see this coupled with worn 5-lever mortice locks on Victorian and Edwardian terraces requiring upgrade to BS3621. The fix is either service (lubricate and adjust) or replace with a BS3621 equivalent if the existing lock is pre-standard.
Our approach Service first if the mechanism is sound; BS3621 upgrade if the existing lock is sub-standard or worn beyond service.