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Closed mortise lock case with spindle opening, keyhole, latch and deadbolt on a wooden workbench. — Vintage Mortise Lock Service, Vinegar Hill

Change or rekey · Vinegar Hill

Vintage Mortise Lock Service in Vinegar Hill

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.

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In plain words

Occasionally a case really is finished, with a cracked body, a bolt worn to a sliver or a hub broken in two, and the answer is a replacement that respects the door. Reproduction mortise cases are made in common vintage sizes and backsets, and a modern case with a pin-tumbler cylinder can fit many old pockets with little woodwork once its faceplate and hub also line up. The locksmith measures the case, backset, faceplate and trim spacing before ordering, aiming for the new case to drop in with your original knobs and escutcheons going back on. From the hallway, the door looks untouched; it just works.

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 · Vinegar Hill

How the visit goes

Technician fitting a steel door knob into a door beside a deadbolt, with an open tool bag of screwdrivers nearby. — Vinegar Hill
  1. 1

    The door before the lock

    Before blaming a lock that may be perfectly sound, the locksmith looks at the door. With it open, the lock is cycled; with it closed, the latch and deadbolt are tried again. A lock that works open and fights when shut is telling you the door has moved. The gap around the door is checked top to bottom, the hinges are watched for a sag when the door is lifted, and the strike plate is inspected for bright wear marks where the bolt has been scraping past. In an older home with a solid wood door this is a routine finding, and correcting it is often most of the repair.

  2. 2

    Inside the case on the bench

    With the cover screws out, the case opens like a book: the latch bolt with its spring, the hub the spindle passes through, the deadbolt with its lever or tumblers, and the springs holding each in place. The locksmith notes what is broken, worn or merely stuck, then cleans the case with solvent and a brass brush until the old grease and rust are gone; old paint on the hardware is treated as a possible lead hazard and cleared with contained, lead-safe methods rather than dry brushing. Parts are cleaned individually, burrs are dressed off the bolts, and the hub square is checked against a fresh spindle to see whether it has rounded.

  3. 3

    Watching the door through the seasons

    The lock is aligned to the door as it hangs today, and a solid wood door in an older home will move again. Through a humid summer it swells, through the heating season it shrinks, and each year the hinges settle a fraction. Twice a year, close the door and try the latch and bolt; if either has started to scrape or needs the door lifted, the strike wants a small adjustment or the hinge screws want snugging, which is a five-minute job. Doing that early keeps the rebuilt case from being strained, and it is the single habit that makes a vintage lock last another few decades without fuss.

In the van

  • Mortise cylinder and cam
  • Bit key blanks
  • Light lock oil
  • Cylinder set screw
  • Dry graphite or PTFE lubricant

What affects the quote

  1. 1

    Extras you choose on the day

    A high-security cylinder, a lockbox for a spare bit key or a separate modern deadbolt above the original are optional additions. None is required to make the old lock work, and each is priced as its own line.

  2. 2

    Strike 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.

  3. 3

    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.

Same fees day, night or weekend.

Have it ready

Before you call · 0 / 3

(289) 306-0409

Vintage Mortise Lock Service: questions

Advice · (289) 306-0409

How should I look after the lock once it is serviced?

A drop of the right lock oil into the latch and bolt once a year is plenty. If the lock has a pin-tumbler cylinder, use whatever lubricant that cylinder's maker specifies, since some take a dry graphite or PTFE product and others a specified liquid one. Try the latch and deadbolt each spring and fall; if the bolt starts to scrape, the strike wants a small adjustment before anything is strained. Keep bit keys out of a pocket where they bend.

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 a modern cylinder be fitted to my old mortise lock?

Often, on cases that already take a threaded cylinder. Mortise cylinders are made in standard thread sizes and lengths with different cam shapes, and a new one is selected to match the case and the door thickness. That gives you keys cut on a machine and the option of keying the door alike with the rest of the house. A bit-key case has no cylinder to swap; its keys are made on the bench instead.

Vintage Mortise Lock Service near you

York, Ontario

Vinegar Hill information

Town
Vinegar Hill, York, Ontario
In business
33 years
Hours
Open 24/7 · nights, weekends and holidays, same fees
Visits
On-site assessment preferred. Request a visit or call.

What the census means at the door

19%

Newer homes. About 19% of homes in Markham were built in 1980 or earlier, according to the 2021 Census.

Households in newer homes are often keen on keypads, fobs and phone-controlled locks. Standard doors make installation straightforward, and the locksmith spends more of the visit setting codes and pairing devices than on carpentry.

56%

A mix of homes. Single-detached houses make up about 56% of homes in Markham (2021 Census).

In areas of mixed housing, landlords may own a house here and a few units there. A locksmith can put all of it under one master system so the owner carries one key while each tenant's key opens only their own door.

Source: Statistics Canada, 2021 Census of Population

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The key turns freely in the round cylinder on the door, all the way around and back, without the bolt shifting at all.

Call now · open 24/7(289) 306-0409
  • On-site assessment preferred
  • Same fees day, night or weekend
  • 33 years in business