
Change or rekey · Port Perry
Vintage Mortise Lock Service in Port Perry
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.
Vintage Mortise Lock Service
In plain words
Keys are the part of the job people expect to be impossible, and they rarely are. A bit key, the skeleton key style used on older doors, is cut and filed on the bench to the wards and levers of your particular case, so a lost key can be replaced from the lock itself. A round cylinder on a later mortise lock is rekeyed like any modern cylinder, or exchanged for a new cylinder of matching thread and cam if it is worn out. Either way the service ends with keys in your hand that turn the original lock, and a spare made while the case is on the bench.
How the visit goesSomeone painted the door years ago without removing the hardware. The faceplate, the strike and the little thumb-turn are all under several coats, the deadbolt scrapes when it moves, and the knob is stiff enough to leave marks on your hand.
Port Perry
How the visit goes
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.
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.
Looking after the finish
The brass or bronze knobs and escutcheons on an old door have earned their patina, left alone unless you ask otherwise. Paint cleaned from a faceplate or strike leaves the bare metal as found, not polished bright. If you would rather see them shine, check the finish first: unlacquered brass takes a gentle polish well, kept off the keyhole and spindle; polishing a lacquered piece can scratch through it and start tarnish underneath. Lacquered reproduction parts resist tarnishing rather than darken to match; an unlacquered reproduction is built to age and blend in over a season or two. A light wipe when dusting is all the upkeep the trim needs; wet cleaners find their way into the case.
Vintage Mortise Lock Service
In the van
- Light lock oil
- Spindle and knob set screws
- Cylinder set screw
- Reproduction mortise case
- Bit key blanks
What affects the quote
Same fees day, night or weekend
1Bit key or cylinder lock
A bit-key case has keys filed by hand on the bench, while a cylinder lock is rekeyed or fitted with a new cylinder on a key machine. The two take different time and materials, and the quote follows.
2Extras 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.
3Making the inside key-free
Fitting a thumb-turn or interior release to a deadbolt that was keyed on both sides is its own small item, and one most owners of an entry door choose to include.
Vintage Mortise Lock Service: questions
What do I get at the end of the visit?
A lock you have tested yourself from both sides, keys counted into your hand with a spare, any parts that were removed if you want them, and a short written note of what was done: case type, parts replaced, keys made, strike adjusted. For a bit-key lock the locksmith keeps the details needed to cut further keys later. You also get shown where the yearly drop of oil goes.
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.
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.
Change or Rekey Locks

- Deadbolt InstallationSomeone tried the door last winter.
- Lock Replacement & UpgradeThe century home's original mortise lock takes a key the size of a spoon, sticks in humid weather…
- Smart Lock InstallationYour mother still lives on her own, and the personal support worker, the pharmacy delivery and two…
Vintage Mortise Lock Service near you
From the front door of a house to the back door of a warehouse, the work in Port Perry comes down to a few families of jobs: getting in, changing who can get in, making it harder for the wrong people to get in, and keeping the hardware turning smoothly year after year. Browse the list to find yours.