Sound familiar?Mississauga
- The call
- At closing time the hookbolt on the storefront door catches the keeper only on the second or third try, and one employee has started giving the door a shoulder to force it home.

The key to the office entrance turns with almost no resistance now, and some mornings the deadbolt does not fully retract until someone jiggles the handle and tries the key again.
Where a home lockout is mostly about getting one door open again, a commercial lock replacement is mostly a decision about a system: how this one door's hardware fits into every other lock the business already manages. The locksmith examines the existing keying, whether cylinders are standard, interchangeable-core or restricted, and whether other doors should be keyed the same way as this one. New hardware is chosen to match the door's fire rating and occupant load where those apply, installed without altering the door's existing prep, and finished with keys cut, tested and recorded in the business's own key-control log.
Sound familiar?Mississauga
Commercial-Grade Lock Replacement · Mississauga

Scene 1
The door tells the locksmith what kind of hardware it can even accept. A hollow-metal or solid wood door with a mortise pocket cut into the edge takes a mortise lock body; an aluminum storefront door with a narrow stile takes a purpose-built narrow-stile lock or hookbolt; a standard cylindrical bore takes a heavy-duty lockset sized to that hole pattern. Handing, swing, backset and existing strike location are measured so the replacement drops into the prep that is already there rather than requiring the door itself to be re-cut.
Scene 2
The new hardware is installed into the existing prep, with the lock body or lockset, strike and any reinforcing plate seated so the door closes without binding. On a narrow-stile storefront door, the hookbolt or deadlatch is aligned so it engages the keeper across its full travel rather than catching on one edge. On a mortise-prepped door, the case is fitted so the trim sits flush and the spindle and cylinder line up with the existing holes cut for them.
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 quoteErindale Lock Experts
FeesSame any hour
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.
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.
Yes. Exit devices and panic hardware are mechanical assemblies that see heavy use on a required exit, so periodic checking that the latch engages fully, the release bar moves freely, and any electrified or alarmed function still triggers correctly is worth building into the same schedule as other fire-safety equipment in the building.
PeelOntario
Commercial-Grade Lock Replacement · Erin Mills, Erindale, Erindale Woodlands, Sheridan Homelands, Sherwood Forrest
Every square is one home in a hundred.
On-site assessment
The key to the office entrance turns with almost no resistance now, and some mornings the deadbolt does not fully retract until someone jiggles the handle and tries the key again.
(289) 805-4851, open 24/7.
On-site assessment preferred · (289) 805-4851, open 24/7