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

Change or rekey · Oakville

Vintage Mortise Lock Service in Oakville

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

The trim on the door face is the other half of the lock. The knobs ride on a square spindle that passes through the hub of the case, held by small set screws, and the escutcheons cover the spindle and keyholes. Slack in a knob, a knob that pulls off in your hand, or a thumb-turn that spins without moving the bolt usually traces to a worn spindle, a stripped set screw or a hub whose square has rounded. The service replaces spindle and screws, matches a hub or lever from stock or makes one, and fits everything so there is no free play before the latch starts to move.

Sound familiar?

You bought a house with its original hardware and a bag of loose keys. Some open interior doors, some fit nothing, and the front door lock has a keyhole shaped for a key you do not have. You would like the original lock kept and made to work.

How the visit goes

Vintage Mortise Lock Service · Oakville

How the visit goes

Hands using a yellow-handled screwdriver at a steel deadbolt plate on a dark door, with a steel knob below. — Oakville
  1. 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. 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

    How to lubricate it, and how not to

    A serviced mortise case wants very little. Once a year, a single drop of light lock oil into the latch and the bolt from the door edge, with the faceplate screws briefly backed off if needed, keeps the levers gliding. If the lock has a pin-tumbler cylinder, that cylinder gets dry graphite or a PTFE lubricant in the keyway instead, because oil in a cylinder gathers grit and stiffens the pins. General-purpose spray lubricants belong nowhere on this hardware; they flush out the little oil that should stay and leave a film that dust settles into. The locksmith will show you where the drop goes so you are not guessing.

In the van

  • Spindle and knob set screws
  • Bit key blanks
  • Hub followers and lever packs
  • Cylinder set screw
  • Light lock oil

What affects the quote

  1. 1

    Missing or mismatched trim

    Sourcing a knob, escutcheon or thumb-turn to match the survivors, from salvage or reproduction stock, is quoted as parts plus the search. Reusing your own trim from another door avoids that line.

  2. 2

    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.

  3. 3

    Paint and seized parts

    Hardware buried under decades of paint takes time to free and clean without damage. A faceplate, strike and thumb-turn that have to be stripped back add to the visit and are noted in the quote.

Same fees day, night or weekend.

Have it ready

Before you call · 0 / 3

(289) 813-6380

Vintage Mortise Lock Service: questions

Advice · (289) 813-6380

Why does my knob turn without moving the latch?

Most often the square hole in the hub inside the case has rounded with age, or the spindle has worn, so the knob turns a good way before it grips. Loose knob set screws produce the same slack. Less often a latch spring has broken and the latch is simply sitting inside the door. All of these are corrected during service by replacing the spindle and screws, bushing or replacing the hub, or fitting a new spring.

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.

Why does the deadbolt scrape or need a shove to throw?

Two causes cover most cases. Either paint has built up on the faceplate, the bolt or the strike so the bolt drags across it, or the door has dropped so the bolt is entering the strike pocket at an angle and rubbing its edge. Occasionally a bent deadbolt lever inside the case adds friction. Cleaning the paint back, adjusting the strike and checking the lever all happen as part of the service.

Halton, Ontario

Oakville information

Town
Oakville, Halton, Ontario
In business
20 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

27%

Newer homes. About 27% of homes in Oakville were built in 1980 or earlier, according to the 2021 Census.

Where most homes are recent, the doors themselves are sound and the work is mostly about keys and control: who holds them, whether contractor keys were retired, and whether one key can open everything. The visit is often more conversation than drilling.

59%

A mix of homes. Single-detached houses make up about 59% of homes in Oakville (2021 Census).

Neighbourhoods of houses beside townhouses and low-rise buildings have a range of door constructions: solid wood, steel, fibreglass and metal-clad. A locksmith who works in such an area is used to fitting hardware to all of them without new holes.

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) 813-6380
  • On-site assessment preferred
  • Same fees day, night or weekend
  • 20 years in business