Stiff sash lock on a Victorian sandstone tenements throughout the city
Common on Victorian sandstone tenements throughout the city across Glasgow — the timber door has moved seasonally and the mortice case has bound against the keep. We often see this coupled with worn mortice lock failures on Victorian sandstone tenements requiring replacement. 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.