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Two rows of lock cylinders on a metal surface with keys and colored key tags in front. — Master Key System Design, Dunbarton

Plan ahead Commercial · Dunbarton

Master Key System Design in Dunbarton

The new wing was built with its own brand of cylinder, so the two-year-old keys from the original building do not open a single door in the addition. Staff are now carrying two separate key rings just to move around one workplace.

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In plain words

Master key system design is the work of turning a property's separate locks into one coherent hierarchy: a change key for an individual door, a sub-master over a department or floor, and one top-level master reserved for the few people who need it. The locksmith records who should open what, matches that list to the cylinders already installed or to new ones chosen for the job, and pins every lock so each key opens exactly its intended group. The finished system comes with a chart the owner controls, so access follows the organization instead of following whoever happened to be handed a spare key.

Sound familiar?

On the warehouse floor, a shift supervisor's key opens the loading dock, the tool crib and the manager's office, though only the dock is really part of the job. Nobody planned it that way; the key was simply copied from whichever one was closest at hand.

How the visit goes

Master Key System Design · Dunbarton

How the visit goes

Technician holding a key fob over a metal workbench with a rugged tablet and loose fobs, beside a gray SUV. — Dunbarton
  1. 1

    What the current keys can already tell you

    Before anything is redesigned, the locksmith reviews the keys already in circulation: how many exist for each door, which ones are stamped or coded in a way that identifies what they open, and which staff members currently hold more access than their role calls for. This review often surfaces the exact problem the new system needs to fix, whether that is a master key copied one time too many or a department that was folded into another without anyone updating who could get in.

  2. 2

    Building the hierarchy from the bottom up

    Design starts with the smallest unit, the individual change key, and works upward. Each door that stands alone gets its own combination; doors that should share access are grouped under a sub-master; and a single top-level master is reserved for the short list agreed earlier. Building in this order keeps the levels honest, since a sub-master or master is only created where a real group of doors justifies it, rather than being added because it seems useful in the abstract. The result is a hierarchy that matches the organization rather than one imposed on top of it.

  3. 3

    A building that finally matches its own org chart

    The most visible change is often the simplest one: the level of key someone carries now matches the role they actually hold, instead of matching whatever happened to be handed down or copied over the years. Walking the building afterward, each door answers to keys that were deliberately assigned to it, and the chart in the office explains every one of those decisions to anyone who asks about it.

In the van

  • Key cutting machine
  • Bench test fixture
  • Cylinder pinning kit
  • Plug follower and key gauge
  • Restricted or standard key blanks

What affects the quote

  1. 1

    Collecting and retiring old keys

    Gathering up old keys that are being replaced, confirming they no longer operate any cylinder, and retiring them from circulation is a small additional step some businesses want included, separate from the core design and cutting work.

  2. 2

    Number of doors and levels involved

    A single office with one change key and no sub-master is a simpler project than a multi-floor property with several departments and a top-level master. The quote reflects how many doors are assessed, how many levels are designed, and how many cylinders are pinned to match those levels.

  3. 3

    Documentation and chart detail requested

    A simple chart listing levels and holders is the baseline. Some businesses want a more detailed record, cross-referenced by department, room number or staff role, which takes additional time to prepare and is quoted as part of the documentation work.

Same fees day, night or weekend.

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Before you call · 0 / 3

(289) 275-9650

Master Key System Design: questions

Advice · (289) 275-9650

What is a restricted keyway and do I need one?

A restricted or patented keyway limits who can cut a copy of your keys to whoever holds the manufacturer's authorization record, rather than any hardware counter. It suits doors behind which cash, records or controlled supplies sit. A standard keyway is simpler to administer and works well for lower-risk doors where duplication control matters less.

Who should hold the top-level master key?

As few people as the business can genuinely operate with. Every additional holder is another way a full-access key can be lost, borrowed or copied without anyone deciding that should happen. A useful test during design is asking, for each proposed holder, whether they need to open every single door on the property or only a defined group; the second answer usually points to a sub-master instead.

What happens to the old keys once a new system is cut?

Once the new pinning is tested and confirmed working, the old keys no longer operate the cylinders they used to, whether or not they are physically collected back. Collecting them anyway is good practice, since it closes the loop on how many old copies were in circulation and lets the business retire them rather than wonder where they ended up.

Durham, Ontario

Dunbarton information

Town
Dunbarton, Durham, Ontario
In business
11 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

31%

Newer homes. About 31% of homes in Pickering were built in 1980 or earlier, according to the 2021 Census.

Builders often key an entire street to a small number of keyways, which is convenient for them and less so for owners afterwards. In newer areas a locksmith can move a household onto a keyway that is genuinely its own.

60%

A mix of homes. Single-detached houses make up about 60% of homes in Pickering (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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Request a visit

The new wing was built with its own brand of cylinder, so the two-year-old keys from the original building do not open a single door in the addition.

Call now · open 24/7(289) 275-9650
  • On-site assessment preferred
  • Same fees day, night or weekend
  • 11 years in business