Sound familiar?Mississauga
- The call
- A new tenant moved into the unit next door, and the property manager just found three different cylinders on three doors, none of them cut to the same key.

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.
Think of it as re-equipping a door for the job it actually does rather than swapping one lock for a similar one. A back door taking deliveries all shift needs different internals than a quiet office entrance, and a storefront's aluminum frame needs a narrow-stile lock a wood door was never built to accept. The locksmith matches lock body, cylinder and strike to the door's real prep and real use, decides with the business whether the new hardware joins an existing master key system or starts a new one, and leaves the opening cycling cleanly from both sides before the visit ends.
Sound familiar?Mississauga
Commercial-Grade Lock Replacement · Mississauga

Scene 1
A door's traffic shapes which hardware belongs on it. A staff entrance opened a handful of times a day tolerates lighter-duty hardware than a delivery door shouldered open on every shift, and a customer-facing storefront door needs a finish and function that hold up under public use. The locksmith asks how often the door opens, who uses it, and whether it is propped, wedged or held open in daily practice, since a door habitually held open needs hardware and a closer arrangement that account for that use rather than fighting it.
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
If the door carries an electric strike, a maglock or a card-reader tie-in, that hardware has been tested together with the new mechanical lock rather than left to be sorted out separately. The release button, the reader and the mechanical latch now agree with each other, so staff are not shouldering a door that is supposedly already unlocked. Anyone monitoring the door through an alarm panel or access-control software can confirm the contact reports correctly against the new hardware.
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