

Commercial · Westmount
Commercial-Grade Lock Replacement in Westmount
An inspection report flagged the rear exit as needing hardware that opens with one motion and no key, and that door currently has an ordinary keyed knob on the inside.
In plain words
Fire separations and exit routes add a layer that a house entry door never has, and this service is where that layer gets handled properly. A door that forms part of a fire separation needs hardware listed for that door's rating, and a door on a required exit may need to open with a single motion and no key once the building's occupant load crosses a threshold. The locksmith checks whether either condition applies to this specific opening, selects hardware that satisfies it, and installs the new lock so the door still closes and latches the way a fire-rated or exit door is required to.
How the visit goesOvernight someone forced the back door, and the cylinder face is scarred, the metal around the strike has pulled loose from the frame, and the latch no longer sits flush.
Commercial-Grade Lock Replacement
How the visit goes


Assessing damage from a break-in or forced entry
When the reason for the call is a forced door, the locksmith treats the assessment a little differently: documenting a scarred cylinder, a bent strike or a cracked frame for the business's own records or insurance purposes before removing anything. The door and frame are checked for structural damage beyond the lock itself, since a replacement lock fitted into a damaged strike pocket or a split frame will not hold the way new hardware should. Anything beyond the lock itself is noted as its own repair.
Testing under real conditions before signing off
The finished hardware is cycled from both sides, under the door's normal swing and closing force, and by more than one person where staff are on site to try it, since a lock that operates cleanly for one hand may bind for another depending on height and grip. Any electric strike or reader tie-in is triggered several times to confirm consistent release. Only once the hardware performs the same way on repeated tries is the work considered finished rather than merely installed.
Confidence after a break-in or a security scare
Where the visit followed a forced door or a lost key that worried the business, the finished hardware answers that concern directly: the damaged cylinder or strike is gone, any compromised key no longer operates the cylinders that were rekeyed or replaced, and the new lock has been cycled and tested rather than simply swapped in and assumed to work. The business can tell staff, tenants or an insurer exactly what changed and why, with a working lock and a written record standing behind that answer rather than a guess about whether the problem was actually solved.
Commercial-Grade Lock Replacement
In the van
Restricted keyway cylinder
Hookbolt and deadlatch hardware
Strike plates and keepers
Narrow-stile storefront lock
Listed panic or exit hardware

Commercial-Grade Lock Replacement
What affects the quote
Timing relative to a lease or renovation
Work scheduled around a tenant turnover, a renovation, or a building-wide upgrade across several units can be planned and quoted as a coordinated project rather than a series of separate calls.
Number of keys cut and issued
Keys are counted individually into the quote. A small office needing a handful of keys is a smaller line item than a multi-shift operation issuing keys to a large staff roster.
Condition of the existing door and frame
A door and frame in good condition accept new hardware into the existing prep with little extra work. Damage from a break-in, a cracked frame or a previously mis-cut mortise pocket adds repair time the quote accounts for separately.
What to have ready
- Is there an electric strike, maglock or card reader already on this door?
- Do other doors on the property share a key with this one?
- Is this one door, or part of a wider multi-door or multi-branch project?
Commercial-Grade Lock Replacement: questions
QuestionsHow do you know if my door is part of a fire separation?
The door and frame usually carry a small metal label stating the assembly's rating, and the building's own fire safety plan or a previous inspection report will identify which doors are part of a fire separation. If a label is missing or unreadable, that is worth raising with your building's fire safety plan holder before hardware is chosen, since it changes what can legally go on the door.
What happens to keys held by former employees or contractors?
Once a cylinder is replaced or rekeyed, any key that was not reissued for the new combination simply stops working on that door. This is the direct answer to a key that walked out with someone who left the business, and it is worth doing across every door that key used to open, not only the one that prompted the call.
What is a grand-master key system, and does a small business need one?
A grand-master system adds a layer above a standard master key, useful for a business with several buildings or departments where one senior key should open everything and mid-level keys should open only their own area. A single-location business with a handful of doors usually only needs a straightforward master and change-key structure, without the extra layer.
Related services

- Master Key System DesignThe 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.
- Access Control InstallationThe keypad on the side door has started sticking on cold mornings, codes get shared instead of reset, and half the staff still remember a code you meant to retire two hires ago.
- Panic & Exit HardwareThe new access-control reader at the staff entrance works fine going in, but nobody has sorted out the door's exit side, and right now a card reader and a pushbar exist as two separate ideas.