Sound familiar?Coverdale
- The call
- 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.

Overnight 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.
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?Coverdale
Commercial-Grade Lock Replacement · Coverdale

Scene 1
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.
Scene 2
Where the opening already carries an electric strike, a maglock, a door position switch or a card-reader tie-in, that wiring is reconnected to the new mechanical hardware and tested together rather than assumed to still line up. Voltage, fail-safe or fail-secure operation, and monitoring contacts are confirmed against what the access-control or alarm system expects, since electrified hardware that is almost, but not quite, matched to the mechanical lock is a common source of a door that buzzes open but still needs force.
Scene 3
Where the visit brought hardware onto a shared master or interchangeable-core system, the business now has one coherent structure instead of a different cylinder on every door. A master key opens what it is supposed to, sub-master and change keys are limited to their own doors, and the key-control log reflects exactly who was issued what. The next time a lock needs attention, whoever handles it can read that log rather than guessing at what system, if any, the previous hardware belonged to.
What shapes the quoteCobourg Lock & Key Co.
FeesSame any hour
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.
That is a decision for the business, not the locksmith, but the general practice is to limit master keys to the smallest number of people who genuinely need building-wide access, and to log who holds each one. Sub-master and change keys can then cover departments, shifts or single doors without every key holder carrying access to everything.
That is entirely your choice. Some businesses keep old hardware briefly in case a spare part is needed elsewhere on the same system, others prefer it removed from the site straightaway, particularly after a break-in where the damaged pieces are no longer wanted around. The locksmith can leave it with you or take it away, whichever you prefer.
NorthumberlandOntario
Commercial-Grade Lock Replacement · Cobourg, Alnwick/Haldimand, Brighton, Cramahe, Hamilton, Gosport, East Colborne, Norham, Codrington, Orland, Smithfield
Every square is one home in a hundred.
On-site assessment
Overnight 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.
(289) 677-1674, open 24/7.
On-site assessment preferred · (289) 677-1674, open 24/7