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Person holding a long door handle and rectangular lock case beside an open wooden door with exposed hardware recesses. — Vintage Mortise Lock Service, Aurora
A silver-colored deadbolt set in clear packaging with two keys resting on the countertop in front. — Lock Rekeying, Aurora

Change or rekey · Aurora

Vintage Mortise Lock Service

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.

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In plain words

Vintage mortise lock service is the repair of the original lock in an older door rather than its removal. The lock is a rectangular steel case that lives inside a pocket in the door edge, and nearly everything that goes wrong with it, a tired spring, dried grease, a worn hub, a lost key, can be put right on the bench. The locksmith confirms you own or occupy the home, takes the case out through the door edge, rebuilds it, sorts out the keys and puts it back in the same pocket. The door keeps its knobs, escutcheons and history, and it locks as it did when new.

Sound familiar?

The brass knob on the front door of your century home turns, but nothing happens on the other side. The latch stays tucked in, the door swings free, and the only thing holding it shut is the deadbolt and a bit key that has worn down to a nub.

How the visit goes

Vintage Mortise Lock Service

How the visit goes

White door with a lever handle and an empty round bore above it, beside a toolbox and a deadbolt on a towel.
Steel door lever on an oval plate with a key in the lock, beside a row of metal bolts on the edge.
  1. Who owns the door

    The first check has nothing to do with the lock. The locksmith confirms that the person asking for the work owns the home or lawfully lives in it, since a serviced lock and a freshly cut key are, in the end, a way into someone's house. Photo identification and something tying you to the address usually settles it in a moment. On a rental, the landlord and the tenant are expected to agree on lock changes and share keys, so the locksmith asks who should hold the new bit keys or cylinder keys and notes it. This small formality protects the household as much as anyone, and it is done before a screwdriver comes out.

  2. Taking the lock out without marking the door

    Removal is done in a set order so nothing is forced. The knob set screws are backed off and the knobs and spindle drawn out, then the escutcheons are lifted away, their screw positions photographed for reassembly. On a cylinder lock, the small set screw in the faceplate is released and the cylinder is unthreaded from the case. The faceplate screws come out, and the case is eased from its pocket with a gentle rock, never a pry bar, because the wood at the edge of an old door is thin. Everything that comes off is bagged and labelled, and the pocket is looked at while it is empty.

  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

  • Spindle and knob set screws

  • Hardwood dowel and wood glue

  • Deadbolt lever springs

  • Cylinder set screw

  • Bit key blanks

Disassembled brass and steel lock cylinder parts laid on a gray metal surface with small brass pins, springs and tweezers.

Vintage Mortise Lock Service

What affects the quote

  1. What is actually broken inside

    A clean and new springs is the lightest job. A worn hub, a cracked lever or a part that has to be fabricated to match the original adds bench time, and the assessment names which applies before any of it starts.

  2. Number 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.

  3. How many keys you want

    Bit keys are made individually by hand and cylinder keys are cut per copy, so the count you ask for is a line of its own. Decide who in the household needs one before the visit.

What to have ready

  • How many keys would you like to have afterwards?
  • Is the property designated as a heritage building?
  • Do you own the home or rent it, and who should receive the keys?
Call (289) 802-6512

Vintage Mortise Lock Service: questions

Questions
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.

Can my interior doors be serviced too, and can one key work all of them?

Usually yes to the first, and to the second once the locksmith checks the locks. Interior mortise latches with privacy turn buttons are lighter versions of the entry lock and respond to the same clean and re-spring. Interior locks in a house were sometimes supplied to one bit key, and where the key sections, warding and levers actually match, the locksmith can restore that arrangement so a single key opens several bedroom and bathroom doors. It is a practical thing to have when a child locks a bathroom from inside.

What if the case is too worn to repair?

Then a replacement case goes into the existing pocket. Reproduction mortise cases are made in the common vintage sizes and backsets, and a modern mortise case with a cylinder fits many old pockets with minor trimming. The locksmith measures the case height, depth, backset and trim spacing before ordering, aiming for the new case to drop in with the original knobs and plates going back on, though a small pocket trim or fixing change is sometimes needed. Cutting the door for a different kind of lock is the last choice.

Related services

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