Change or rekey · Elgin Mills
Vintage Mortise Lock Service in Elgin Mills
The interior bedroom doors on the second floor have the original mortise latches, and none of them close any more. The doors drift open, the small brass turn buttons do nothing, and the keyholes have been empty for as long as anyone can remember.
Vintage Mortise Lock Service
In plain words
Most old mortise locks fail for boring reasons. A coil spring that has been compressed a hundred thousand times since the house was built finally breaks, or the grease inside the case dries into something like wax and the levers stick in it. Neither justifies cutting a new hole in a solid oak door. The service opens the case, cleans out the old lubricant, replaces the springs with the right size, matches any worn follower or lever and lubricates the mechanism lightly. The same case goes back into the same pocket, and the knob returns to level with the crisp snap it had decades ago.
How the visit goesThe interior bedroom doors on the second floor have the original mortise latches, and none of them close any more. The doors drift open, the small brass turn buttons do nothing, and the keyholes have been empty for as long as anyone can remember.
Elgin Mills
How the visit goes
Reading the faceplate
Standing at the open door, the locksmith looks at the narrow brass or steel plate in the door edge. Its height, the spacing of its screws, any maker's stamp, and whether it shows one bolt or two tell a good deal about what is inside: a latch-only case for an interior door, a latch and deadbolt case for an entry, or a privacy function with a turn button. The distance from the door edge to the centre of the knob, the backset, is measured, along with the spindle size. These figures decide which springs, followers and, if it comes to that, which replacement case will fit, so they are written down before the lock is disturbed.
When a case is fitted new
If the old case could not be saved, the replacement is fitted to the door rather than the door to the replacement. A reproduction or modern mortise case matching the measured height, depth, backset, faceplate and hub is chosen with the goal of it dropping into the existing pocket; where a small difference remains, the pocket is trimmed with a chisel by the least amount that works, never bored out. The original knobs, escutcheons and strike are refitted wherever their spacing allows, and a new cylinder is keyed to match the rest of the house if wanted. The result reads as the original lock from either side of the door, with the reliability of a fresh mechanism.
Looking after the finish
The brass or bronze knobs and escutcheons on an old door have earned their patina, left alone unless you ask otherwise. Paint cleaned from a faceplate or strike leaves the bare metal as found, not polished bright. If you would rather see them shine, check the finish first: unlacquered brass takes a gentle polish well, kept off the keyhole and spindle; polishing a lacquered piece can scratch through it and start tarnish underneath. Lacquered reproduction parts resist tarnishing rather than darken to match; an unlacquered reproduction is built to age and blend in over a season or two. A light wipe when dusting is all the upkeep the trim needs; wet cleaners find their way into the case.
Vintage Mortise Lock Service
In the van
- Mortise cylinder and cam
- Reproduction mortise case
- Light lock oil
- Spindle and knob set screws
- Warding files
What affects the quote
Same fees day, night or weekend
1Travel and access
Distance to the property and how easy it is to work at the door, on a busy entry or a third-floor walk-up, are part of any call-out and are stated when the visit is booked.
2Number of locks in the visit
One entry lock is the simplest case. A whole floor of interior latches, or the front and back doors together, is a longer visit, and each case is quoted on its own so the total is easy to follow.
3Condition of the wood
Stripped screw holes, a loosened pocket or a split at the door edge need dowelling, shimming or gluing before the case can be trusted. That woodwork is quoted once the locksmith has seen the pocket empty.
Vintage Mortise Lock Service: questions
The key turns all the way round but the bolt stays put. What is wrong?
On a cylinder mortise lock this points to the cylinder rather than the case. The set screw that holds the cylinder in the door has loosened or stripped so the whole cylinder rotates, or the cam on the back of the cylinder has worn or is the wrong shape and no longer catches the bolt lever. Both are fixed by resetting or replacing the cylinder and its set screw, and the case itself is usually fine.
Is it worth repairing an old mortise lock instead of replacing it?
Usually, yes. The mechanisms are simple and robust, and what fails is nearly always a spring, dried grease or wear on one part, all of which are repairable on a bench. Replacing the lock with a modern cylindrical set means boring a large hole through the door stile and filling the old pocket, which is more work and changes the door for good. A rebuilt case keeps the original trim and keeps the door intact.
What information helps before you come out?
Whether the door takes a skeleton-style bit key or a flat key in a round cylinder, roughly when the house was built, what the knob and bolt are doing, and whether the trouble is worse with the door closed. A photo of the faceplate in the door edge and one of the keyhole side is worth a great deal. Mention how many doors are involved and how many keys you would like afterwards.
Change or Rekey Locks
- Deadbolt InstallationYou bought a keypad deadbolt online and pulled the old one off, only to find the hole in the door…
- Lock Replacement & UpgradeThe century home's original mortise lock takes a key the size of a spoon, sticks in humid weather…
- Smart Lock InstallationHalf the evenings someone asks whether the back door got locked, and nobody is sure.
Vintage Mortise Lock Service near you
The lock services below are the ones people in Elgin Mills ask for by name: get me back in, change the locks, rekey the house, put a deadbolt on this door, sort out the shop, open the safe. Each page answers the questions that usually come next, and the technician answers the rest at the door.