
Commercial · London
Commercial Rekeying
The drawer behind the counter holds a tangle of keys with tape labels: front old, side, Dave. Some open things, some open nothing, and the hardware-store copies mean the true count drifted long ago past anything written down.
Call now · open 24/7(226) 777-6122In plain words
For most business doors, rekeying is the sensible middle path between doing nothing and buying new hardware. Commercial cylinders are built to be repinned many times, and a lever set, mortise lock or storefront cylinder in decent condition has years left in it. Rekeying keeps the finish, the door preparation and the handles you already have and changes only the small brass pins inside. Where a cylinder is worn, corroded by winter salt or too light for the room behind it, the locksmith says so and offers a replacement for that door alone; the rest are rekeyed to the new plan.
How the visit goesYou have just signed the lease on a unit the previous tenant ran for a decade. The landlord handed over three keys, the back door wears a padlock nobody can open, and nobody can say how many front-door keys are still out there.
Commercial Rekeying · London
How the visit goes

- 1
The state of the cylinders and the doors
A cylinder about to be repinned is examined the way a mechanic looks over a part before rebuilding it. The plug should turn smoothly with the right key, the pins should spring back cleanly, and the face should be free of the green bloom that salt spray leaves on storefront hardware after a few winters. The locksmith also checks how the door closes: a strike that no longer lines up, a closer that slams, or a deadlatch that fails to catch will keep a freshly rekeyed door from locking properly. Most cylinders pass and are repinned; a worn or corroded one is pointed out so you can choose a replacement for that opening.
- 2
Swapping interchangeable cores
Where the business already runs on interchangeable cores, the door hardware never comes apart. The control key goes into the figure-eight core, turns a few degrees, and the whole core slides out of the lever or padlock in one piece. A freshly combinated core goes in the same way, the operating key is tried, and that door is done. The old cores travel back to the bench to be repinned for another opening or held as spares. This is what makes cores so well suited to businesses with steady turnover: a single control key, kept in the manager's safe rather than on a ring, is all it takes to change a lock.
- 3
A keying chart in plain language
You leave the visit with a one-page chart that lists every opening by name, the key group it belongs to, the code stamped on that group's keys and how many were cut. It is written for the manager, not the locksmith: the stockroom is called the stockroom, and a glance shows that key group B opens the office and the cash room and nothing else. The bitting details that a locksmith needs to add a cylinder later are kept separately and securely. Pin the chart inside the manager's cupboard, keep a copy off site, and it becomes the reference every future key question is answered from.
In the van
- Dry graphite or PTFE lubricant
- Mortise cylinder set screws and cams
- Master pins
- Key stamp set and tags
- Plug follower
What affects the quote
- 1
Cylinders that need replacing
Where a worn, corroded or low-grade cylinder is better replaced than repinned, the new part is added for that door alone, and the locksmith points it out before the work begins.
- 2
Several locations
Rekeying two or three sites onto one keying plan means travel between them and a chart that spans buildings, quoted per site plus the shared design work.
- 3
Restricted keyway
Moving to a patented, restricted keyway means new cylinders or cores rather than a repin of the old ones, and the blanks themselves carry a higher price than standard keys.
Same fees day, night or weekend.
Commercial Rekeying: questions
What is the difference between rekeying a business and replacing its locks?
Rekeying keeps every lock on the door and changes only the pins inside the cylinder, so a new key works and the old ones stop. Replacing swaps the hardware itself. Commercial cylinders are made to be repinned many times, so rekeying suits any lock in sound condition and leaves the levers, trim and door untouched. Replacement is chosen door by door for cylinders that are worn, corroded or too light for what they protect.
What information should I have ready before the locksmith arrives?
A list of the doors and other locks you want included, a copy of the lease or the property manager's contact, every existing key you can find, and a rough idea of who needs to open what. Note which doors, if any, are interchangeable cores and where the control key is. Knowing your quiet hours and who opens up in the morning helps the locksmith plan the order of work and the key handover.
What condition does a lock need to be in to be rekeyed?
It needs a plug that rotates without catching, pins that return under their springs, and a face free of heavy corrosion or cracks. Most commercial cylinders in daily use pass easily. Ones that are stiff, gritty or green with salt bloom can sometimes be cleaned and repinned, and the locksmith will say when a replacement for that door is the better value; the rest of the doors are rekeyed regardless.
Commercial Rekeying near you
Middlesex, Ontario
London information
- Town
- London, Middlesex, Ontario
- In business
- 23 years
- Hours
- Open 24/7 · nights, weekends and holidays, same fees
- Phone
- (226) 777-6122
- Visits
- On-site assessment preferred. Request a visit or call.
What the census means at the door
52%
Older homes. About 52% of homes in London were built in 1980 or earlier, according to the 2021 Census.
Period hardware on older homes deserves matching parts, not a mismatched modern set. A locksmith who works among such houses keeps finishes and styles that suit them, so a repaired or replaced lock still looks like it belongs to the door.
49%
A mix of homes. Single-detached houses make up about 49% of homes in London (2021 Census).
Mixed housing means a locksmith sees a bungalow in the morning and a condo tower in the afternoon. The stocked van has house-door deadbolts, suite-door cylinders and the finishes for each, so neither kind of customer waits for a second visit.
Open 24/7
Request a visit
The drawer behind the counter holds a tangle of keys with tape labels: front old, side, Dave.
Call now · open 24/7(226) 777-6122- On-site assessment preferred
- Same fees day, night or weekend
- 23 years in business



