Locked out in
Ilkeston?

Ilkeston's terraces were built for pit and factory workers, and some still have their original doors. The Erewash valley sits on the Derbyshire coalfield, pits worked in and around the town through the nineteenth and early twentieth centuries, and rows of terraces went up beside the collieries for the men who worked them. Add the hosiery and lace factories and you get a town of Victorian and Edwardian terraces, stone cottages and converted mill property. A timber front door takes a mortice lock, and that is the one case where BS3621 is the standard your insurer actually means.

Kirk Hallam, Shipley View and the newer estates are cylinder jobs. Interwar and post-war housing and the modern estates around the edges of the town run on uPVC and composite doors, which lock with a euro cylinder driving a multipoint mechanism. If the handle has stopped lifting or you are leaning on the door to lock it, that is the gearbox inside the mechanism and it is a repair, not a new door.

Converted mill and cottage property is worth a proper look. Older stone property and mill conversions often ended up with whatever door fitted the opening rather than a matched set, and it is common to find a solid front door and a much weaker back one. The back door is the one that matters, because it is the one nobody on the street can see.

Ilkeston is in Derbyshire and I am based on the Nottingham side, which changes nothing about the bill: no zone pricing, no mileage, and the published figures quoted before I set off. If the honest answer is that a cylinder swap is all you need, that is what you will be told.