High Security Lock Installation in Mississauga

The phrase gets used loosely, so it helps to be precise. A cylinder earns the label by defending against three separate attacks, and a product that only handles one of them is not a high security lock, whatever the packaging says.

Two independent standards matter in Canada, and they measure different things. ANSI/BHMA grades durability and forced entry resistance. UL 437 tests specifically against picking, drilling and forcing. A cylinder carrying both tells you more than a marketing claim does.

High security cylinders cost several times a standard one, and putting them on every door in a building is usually the wrong allocation. The right approach is to identify the doors where a quiet, traceless entry would be genuinely damaging.

In practice that means the doors behind which the value sits rather than the doors at the perimeter: a stock room in a Dixie Road warehouse holding small high value goods, a cash office, a pharmacy or clinic storage room, a records room holding client files, a server or comms room, and the mechanical and roof access doors that a determined intruder uses to bypass the front of the building entirely.

The perimeter doors are often better served by a good Grade 1 lock plus a reinforced frame and an alarm, because a front door attack is loud and visible and the defence you want there is time and noise, not pick resistance.

The most common way a commercial key system fails has nothing to do with the lock. Someone who was issued a key had a copy cut at a mall kiosk before they returned the original, and now there is a working key in circulation that nobody knows about and no lock will ever notice.

A restricted keyway ends that. The blank is patent protected and not sold to the trade at large, so a copy can only be cut by the authorised dealer, only against a signature that is on file, and only with a record of who asked and when. When someone leaves, you know exactly how many keys existed and whether they all came back.

Patents expire, and this matters when you are choosing. A keyway whose patent lapses becomes a keyway anyone can make blanks for, at which point the key control benefit quietly disappears while the lock keeps looking identical. Ask what the patent expiry is before you commit a whole building to a system.

It is worth saying plainly, because it prevents an expensive mistake. A high security cylinder defends the cylinder. It does nothing for the rest of the door.

Fitting a Medeco or a Mul-T-Lock into a hollow aluminium storefront frame with a single glazed panel beside it protects a lock that nobody was going to attack, on a door that opens with a brick. The same is true of a superb cylinder in a jamb held by two inch screws into pine trim.

Spend in order. Frame and strike reinforcement first, because that is where forced entries actually happen. Glazing next, if there is glass beside or in the door. Then the cylinder. A Grade 1 standard lock in a reinforced frame beats a high security cylinder in a weak one every time, and it costs less.