Sound familiar?Cambridge
- The call
- Head office wants every branch keyed alike under one system, and half the locations are still running whatever lockset the original contractor happened to install years ago.

The kitchen delivery door gets shouldered open more than a hundred times a shift, and lately the latch slips past the strike plate instead of catching it on the first push.
Businesses often reach this service after something specific happens: a break-in, a departing employee holding a working key, a lease turnover, or an inspector's note about the rear exit. Whatever the trigger, the work itself follows the same order. The locksmith assesses the door and its current hardware, agrees with an authorized contact on the keying the new lock should follow, fits hardware rated for the opening's construction and use, and connects it to anything else already wired into that door, such as an alarm contact or an access-control reader, before testing and handing the keys over.
Sound familiar?Cambridge
Commercial-Grade Lock Replacement · Cambridge

Scene 1
Many commercial openings carry more than a mechanical lock: an electric strike, a maglock, a door position switch feeding an alarm panel, or a card reader tied to an access-control system. The locksmith identifies everything already connected to the opening before ordering replacement hardware, since a new lock has to coexist with that wiring rather than replace it by accident. Where the connected hardware is the actual source of the problem, that gets flagged separately rather than folded silently into a mechanical lock replacement.
Scene 2
With the assessment complete, the locksmith orders hardware to match: a mortise lock body for a mortise-prepped door, a heavy cylindrical lockset for a standard bored door, or a narrow-stile lock or hookbolt for an aluminum storefront. Where the door is part of a fire separation or a required exit, the hardware chosen is listed for that rating and function rather than a general-purpose substitute. Grade and finish are matched to the traffic the door takes, so a heavily used delivery door gets hardware built for that duty rather than the lightest option available.
Scene 3
The business is left with hardware sized to how the door is actually used: a mortise lock body or heavy cylindrical lockset that can take the traffic of a busy entrance, or a narrow-stile lock built for the aluminum frame it is mounted in rather than adapted to it. Staff can be shown how the new hardware feels different from the old one, whether that is a firmer latch, a smoother deadbolt throw, or a different key profile, so nobody is caught off guard by hardware that behaves differently from what they are used to.
What shapes the quotePreston Locksmith Co.
FeesSame any hour
In most cases, yes. Replacement hardware is chosen to fit the door's existing mortise pocket, bore pattern or narrow-stile prep, so the visit does not usually involve altering the door itself. Re-cutting only comes up when the business specifically wants to change hardware type, for example moving from a knob-and-deadbolt pair to a single mortise lock body.
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.
Yes, that is usually the first decision made. The locksmith checks whether your doors already run on a master or grand-master system, an interchangeable-core setup, or a restricted keyway, and orders replacement cylinders that slot into whichever structure you want to keep or move to. Bringing a new door onto an existing system is generally simpler than starting that door on its own.
WaterlooOntario
Every square is one home in a hundred.
On-site assessment
The kitchen delivery door gets shouldered open more than a hundred times a shift, and lately the latch slips past the strike plate instead of catching it on the first push.
(226) 807-5217, open 24/7.
On-site assessment preferred · (226) 807-5217, open 24/7