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Person handling a lock cylinder at a workbench lined with cylinders, keys, small pin trays and blank key tags. — Commercial Rekeying, London

Commercial · London

Commercial Rekeying

The renovation is finished and the contractors have gone, along with the loaner keys they used for six weeks. Trades, delivery drivers and an inspector all came through, and the front door still answers to the key that was passed around the site.

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In plain words

A business hands out keys as people join and rarely gets every one back as people leave. Rekeying resets that count. Instead of guessing how many copies of the front-door key exist, the cylinders are repinned so only the newly cut set works, and those keys are numbered and signed for. Where turnover is steady, the locksmith can fit interchangeable cores, which let a manager swap a core with a control key in a couple of minutes when someone departs, so the reset becomes routine rather than an event. Either way you end up with a premises where the keyholder list matches the staff list.

Sound familiar?

The renovation is finished and the contractors have gone, along with the loaner keys they used for six weeks. Trades, delivery drivers and an inspector all came through, and the front door still answers to the key that was passed around the site.

How the visit goes

Commercial Rekeying · London

How the visit goes

Technician in a cap and glasses holding a small key fob beside the dashboard of a black motorcycle in a garage.
  1. 1

    Choosing the window and the order of doors

    The last part of the assessment is practical: when can the work happen, and in what order. A retail shop may prefer the hour after closing; a restaurant, the mid-morning lull; a warehouse, the gap between the last outbound truck and the night shift. The locksmith also asks about deliveries, the cleaning crew, the alarm monitoring company and anyone else who holds a key and needs a new one before their next visit. From this comes a sequence, typically the doors staff use least first and the main entrance last, so there is always a working, lockable way in and out while the cylinders are being changed.

  2. 2

    Door by door, never a gap

    The sequence agreed at the assessment is followed on the day. The locksmith finishes one opening entirely before beginning the next: cylinder out, repinned, refitted, tested with both the new key and the old, and locked again. Only then does the next door come apart. The main entrance is usually left for last and done while someone from the business is present, so there is never a moment when the premises has a door that will not lock. Staff who are working during the visit are handed their new key before the door they use is changed, and a short note goes to anyone off shift about where to collect theirs.

  3. 3

    Exits that still open the way they must

    Rekeying changes who can come in; it never changes how people get out. Every exit door and every door on the way to one is left opening from the inside with a single motion and no key. On a door with a panic bar, the outside cylinder simply controls entry, and the bar keeps working exactly as before. Once the locksmith has finished, walk the exit routes yourself, push each bar and turn each thumb-turn, and make that walk a habit at the start of every season so a new deadbolt or a helpful padlock never creeps onto an exit.

In the van

  • Master pins
  • Standard and restricted key blanks
  • Dry graphite or PTFE lubricant
  • Mortise cylinder set screws and cams
  • Key gauge and decoder

What affects the quote

  1. 1

    After-hours or split visits

    Work done after closing, before opening or split across two visits to suit trading hours costs the same amount as a single daytime block. The exact figure is confirmed on site once the number of cylinders and the keying plan are known.

  2. 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. 3

    Landlord and base-building coordination

    Suite doors that must accept both your key and the landlord's master, or work that needs the property manager on site, add coordination the quote allows for.

Same fees day, night or weekend.

Have it ready

Before you call · 0 / 3

(226) 785-2980

Commercial Rekeying: questions

Advice · (226) 785-2980

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.

We lost a master key. Does the whole building need doing?

Only the cylinders that master opened, which the keying chart identifies. If the lost key was the top master, that is every lock in the system; if it was a departmental master, it is that department's doors. Where no chart exists, the locksmith reads the cylinders first to establish what the key reached. The remaining doors, and any keys that never opened them, are left exactly as they are.

Does stamping keys 'do not duplicate' stop people copying them?

Not reliably. The stamp is a request, and any key on a standard blank can be copied by anyone with the blank and a machine. What does work is controlling the blank itself through a restricted keyway, or controlling access to the lock through interchangeable cores and a tight register. Stamping still has a place: a serial code on each key, instead of the business name, lets you track it without telling a finder where it fits.

Commercial Rekeying near you

Middlesex, Ontario

London information

Town
London, Middlesex, Ontario
In business
15 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

52%

Older homes. About 52% of homes in London were built in 1980 or earlier, according to the 2021 Census.

Layers of paint build up on older doors and frames, and a lock that seemed to fail is sometimes a latch glued shut by the last coat. Part of the visit in an older area is freeing hardware, cleaning the edges and checking the door swings true.

49%

A mix of homes. Single-detached houses make up about 49% of homes in London (2021 Census).

In mixed neighbourhoods, a family may move from an apartment to a house or the other way around. A locksmith who knows both kinds of door can rekey the old place for the next occupant and set up the new one on the same visit.

Source: Statistics Canada, 2021 Census of Population

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Request a visit

The renovation is finished and the contractors have gone, along with the loaner keys they used for six weeks.

Call now · open 24/7(226) 785-2980
  • On-site assessment preferred
  • Same fees day, night or weekend
  • 15 years in business