Door Lock Replacement in Canterbury

If the door and multipoint gearbox are in good order, a straightforward like-for-like cylinder replacement often solves the sticking. However, given the number of HMO conversions in Northgate, we usually recommend an anti-snap upgrade at the same time, since standard euro cylinders remain a common target for lock snapping on rented terraces. Cylinder measurement is essential beforehand, taken from both sides of the door to avoid ordering the wrong length.

Listed status does not rule out improved security, but it does mean any replacement lock must respect the original door furniture and conservation area requirements. We fit slimline, conservation-compliant cylinders and surface-mounted hardware that meet British Standard BS 3621 without altering the historic joinery. This approach is common across the Medieval and Georgian terraces in the city center, where planning sensitivity affects material choice as much as mechanism choice.

The main factors are the condition of the gearbox itself, whether the existing keep and strike plates need adjusting, and the door thickness, which affects cylinder measurement and spindle length. A worn multipoint gearbox usually costs more to replace than a simple cylinder swap, particularly on semi-detached homes in Harbledown or Hersden where original 1990s mechanisms are now reaching the end of their service life. We always assess the gearbox and cylinder separately before quoting, since one can fail without the other.