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BambergLocksmith Pros · St. ClementsOpen 24/7(226) 806-0664Request a visit
Person holding a long door handle and rectangular lock case beside an open wooden door with exposed hardware recesses. — Vintage Mortise Lock Service, St. Clements

Change or rekey · St. Clements

Vintage Mortise Lock Service in St. Clements

The key turns freely in the round cylinder on the door, all the way around and back, without the bolt shifting at all. The cylinder itself wobbles slightly when you press it, as if it has come loose inside the door.

Vintage Mortise Lock Service

In plain words

Interior doors are as much a part of this work as the entry. Bedroom, bathroom and closet doors in an older home usually carry a lighter mortise latch with a privacy turn button, and after decades without lubrication they stop catching or the turn button seizes. These small cases are short jobs on the bench: a clean, a spring, a new turn button spindle where the old one has sheared. Sets of interior locks are often serviced in one visit, and a bit key can be cut that operates all of them, which is how they were originally supplied when the house was built.

Sound familiar?

The old skeleton key still fits the keyhole, but it now needs a jiggle, a lean on the door and a little luck before the bolt moves. Last week it took three tries. You have one key and no idea where a second could come from.

How the visit goes

St. Clements

How the visit goes

  1. How the knob and key actually behave

    A short conversation with the hardware comes next. The knob is turned and released: does it return smartly, sag back, or not return at all? Is there free play before the latch moves? The key is tried in the deadbolt with the door open: does the bolt throw fully, catch part way, or ignore the key while the key turns? The thumb-turn gets the same test. Each answer points somewhere different inside the case, a latch spring, a hub spring, a worn hub square, a deadbolt lever, a cylinder cam, and the locksmith is building a short list of likely parts before the cover ever comes off.

  2. 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.

  3. A lock that feels new and looks old

    What you get back is the door you had, with the lock working as it was designed to. The knob returns level with a snap, the latch catches when the door is pushed shut, the deadbolt throws with a light turn of the key or the thumb-turn, and the key goes in and out without a wiggle. Nothing on the face of the door has changed except that the brass has been cleaned where it was handled. The locksmith runs through each function with you from both sides before leaving, so the standard of what has been done is something you have seen, not something you have been told.

Vintage Mortise Lock Service

In the van

  • Latch and hub springs
  • Dry graphite or PTFE lubricant
  • Light lock oil
  • Hub followers and lever packs
  • Cylinder set screw

What affects the quote

Same fees day, night or weekend

  1. 1Replacement cylinder

    When a pin-tumbler cylinder is past rekeying, a new mortise cylinder of the right thread and cam is fitted. A standard cylinder and a high-security one are different hardware and are quoted as such.

  2. 2Condition 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.

  3. 3Strike and hinge work

    Where the door has dropped or swelled, adjusting or moving the strike and tightening or packing hinges is part of the fix. It is small work but it is listed, so you see what was done to the door.

What to have ready

0 of 3 ready

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Vintage Mortise Lock Service: questions

Does a rented home need the landlord involved for this work?

Repairing a lock so it works as before is ordinary maintenance, but anything that changes who can open the door, such as a rekeyed cylinder or new keys, is something a tenant and landlord are expected to agree on and share keys for. The locksmith asks up front who should receive keys and can leave a note of what was done for the property manager, so both sides know what is on the door.

Is it safe to keep a deadbolt that is keyed on both sides of the entry door?

It is better not to. A bolt that needs a key from inside can trap the household when a key is not to hand, and a door people leave the home through works better opening without keys or special knowledge. During service the locksmith fits a thumb-turn to the bolt tail or otherwise makes the inside release without a key, keeping the vintage lock and the clear way out.

Which parts usually need replacing?

Springs, first and foremost: the latch spring, the hub spring that returns the knob, and the small springs on the deadbolt levers. After that, the spindle and knob set screws, a hub whose square has worn round, a worn deadbolt lever or follower, and on later locks the cylinder set screw or the cylinder itself. Bolts, cases and trim are almost always kept, cleaned and refitted rather than replaced.

Change or Rekey Locks

Vintage Mortise Lock Service near you

The services offered in St. Clements answer the questions a door eventually asks. Who else has a key? Why does the bolt drag? Would a stronger cylinder be worth it? Can staff leave without a key? How do I open the safe my father left? Each answer is on the pages below.

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