Stiff sash lock on a Georgian and Regency townhouse
Common on Georgian and Regency townhouses across Ross-on-Wye — the timber door has moved seasonally and the mortice case has bound against the keep. We often see this coupled with rim lock and surface-bolt failure on timber-framed Tudor cottage ledged doors. 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.