Stiff sash lock on a Victorian stone-built terraced houses on steep hillside street
Common on Victorian stone-built terraced houses on steep hillside streets across Halifax — the timber door has moved seasonally and the mortice case has bound against the keep. We often see this coupled with mortice lock body corrosion on stone terraces exposed to high rainfall on elevated hillside streets. 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.