Sound familiar?Oshawa
- The call
- Your shop has had four employees leave in two years and each one had a key. Rekeying every time is getting old, and the hardware store will cut a copy for anyone who walks in with the original.

After the attempted break-in the police officer pointed at your door and said the strike plate was held by two short screws. Nobody got in, but you have looked at that door differently every evening since.
Upgrading to high security rarely means new doors or a big disruption. Many high security cylinders retrofit into the existing deadbolt or lever, so the door preparation stays as it is and only the cylinder and keys change. A heavier deadbolt uses the same bore as the old one in most cases. The strike and hinge screws are swapped for long ones that bite into the framing. The visible difference afterwards is small; the practical difference is that the door resists the tools and tricks that defeat ordinary hardware, and that nobody can copy your key without you knowing.
Sound familiar?Oshawa
High Security Locks · Oshawa

Scene 1
A door on a farmhouse porch, a condo corridor and a shop on a busy street each see different wear. The locksmith asks how the door behaves in cold weather, whether the key has ever frozen or stuck, how many times a day it is used and whether it slams behind people. High-security cylinders with sidebars and telescopic pins are precise mechanisms and appreciate a door that closes true and a keyway kept clean. The recommendation may include a weather cover for an exposed cylinder, a closer adjustment or a hinge repair so the new hardware lives a long life.
Scene 2
When more than one door is upgraded, the locksmith plans the keying before pinning anything. A home usually wants every exterior door on one key. A business often wants staff keys that open the front and their own area, and one manager key that opens everything, arranged as a small master system on the same patented keyway. Cylinders are pinned on the bench, labelled and fitted door by door, and each key is checked against the doors it should open and, just as carefully, the doors it should not. The written key schedule is part of the handover.
Scene 3
For a business, the handover includes a key schedule showing every cylinder, every key number and who holds it. When someone leaves, their key comes back and is struck off; if it does not come back, you know exactly which doors it opened and can decide whether one cylinder or several should be repinned. Because the keyway is restricted, a departed employee cannot quietly keep a copy. New hires are issued a numbered key against a signature. The plan lives in a folder or spreadsheet, and the locksmith keeps a matching record so the two can be reconciled whenever you like.
What shapes the quoteMount Carmel Locksmith Pros
FeesSame any hour
Start with the doors that matter and the ones that are weakest, which are often not the same. Front doors usually carry the sturdiest hardware already; the side door by the driveway, the door from the garage and the basement walkout often carry the lightest locks and get the least attention. The assessment walks the whole perimeter with you so the upgrade goes where entry is most likely, and the remaining doors can join the same key later.
A cylinder swap with new keys on one door is a short visit. A new deadbolt, reinforced strike and frame repair takes longer, and several doors keyed to a plan take longer again, mostly in bench time pinning cylinders. The locksmith gives you a realistic estimate once the doors have been looked at, because the frame condition and the door preparation matter more than the count of locks alone.
Three things working together. The cylinder has a second locking mechanism, usually a sidebar released by finger pins or rotating pins, plus hardened steel in the path of a drill, so picking, bumping and drilling take far longer than on an ordinary lock. The deadbolt and strike are heavier and fastened into the framing. And the key is cut on a patented or restricted blank that only an authorised person can have copied. Remove any one and the door is weaker than the label suggests.
DurhamOntario
High Security Locks · Columbus
Every square is one home in a hundred.
On-site assessment
After the attempted break-in the police officer pointed at your door and said the strike plate was held by two short screws.
(289) 367-6857, open 24/7.
On-site assessment preferred · (289) 367-6857, open 24/7