Stiff sash lock on a Victorian terraced mill workers' cottage
Common on Victorian terraced mill workers' cottages across Burnley — the timber door has moved seasonally and the mortice case has bound against the keep. We often see this coupled with mortice lock wear on Victorian stone-built mill cottages with original narrow door stiles. 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.