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

Change or rekey · Mississauga

Vintage Mortise Lock Service in Mississauga

The knob flops loose on its spindle and never springs back to level. When you turn it the latch pulls in, but you have to push the knob back yourself, and lately the latch has started staying inside the door instead of catching.

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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 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

Vintage Mortise Lock Service · Mississauga

How the visit goes

Person leaning over a blue bench machine in a small shop with keys, padlocks and door hardware displayed on blue walls. — Mississauga
  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

    Cylinder work on a later mortise lock

    A pin-tumbler cylinder on a mortise lock is serviced the same way as a modern one. The plug is pushed out with a follower, the old bottom pins are replaced to a new combination, and keys are cut to match, so a lost key stops mattering. If the plug is worn past rekeying, a new mortise cylinder is selected with the same thread length, the same cam shape and a finish close to the trim, and threaded into the case to the correct depth so the cam swings the bolt without binding. The set screw is seated into the cylinder's groove, and the key is tested with the case in the door.

  3. 3

    Parts, records and the house file

    Anything that came out of the lock, a broken spring, a worn lever, the old cylinder, is offered to you rather than thrown away; some owners keep the originals with the house's papers. The locksmith leaves a short account of what was done: the case type and size, what was replaced, whether keys were made or a cylinder rekeyed, and how the strike was adjusted. For a designated heritage property this record shows the original hardware was retained. For everyone else it is simply the sheet you hand to the next locksmith, or the next owner, so nobody has to rediscover what is inside the door.

In the van

  • Dry graphite or PTFE lubricant
  • Spindle and knob set screws
  • Warding files
  • Reproduction mortise case
  • Cylinder set screw

What affects the quote

  1. 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. 2

    Replacement 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.

  3. 3

    Condition 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.

Same fees day, night or weekend.

Have it ready

Before you call · 0 / 3

(289) 805-7422

Vintage Mortise Lock Service: questions

Advice · (289) 805-7422

How long does servicing a mortise lock take?

A single entry lock that needs cleaning, springs and a strike adjustment is generally done in one visit of an hour or two. Filing a bit key adds bench time, and a set of interior latches is longer simply because there are more of them. A case that needs a part fabricated, or a replacement case that has to be ordered to size, may mean a second visit; the locksmith says so at the assessment.

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.

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.

Peel, Ontario

Mississauga information

Town
Mississauga, Peel, Ontario
In business
12 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

38%

Homes of every age. About 38% of homes in Mississauga were built in 1980 or earlier, according to the 2021 Census.

In an area of varied housing ages, rekeying is the one job that fits every door. Old cylinders and new ones both take fresh pins, so a household moving into either kind of home can start with keys that nobody else holds.

37%

Single-detached houses make up about 37% of homes in Mississauga (2021 Census).

Attached housing turns over more often than detached, so rekeying between tenants or owners is a constant. Because suite doors tend to be standard, the job is usually a straightforward pin change and a fresh set of keys cut on site.

Source: Statistics Canada, 2021 Census of Population

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The knob flops loose on its spindle and never springs back to level.

Call now · open 24/7(289) 805-7422
  • On-site assessment preferred
  • Same fees day, night or weekend
  • 12 years in business