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FrasersCorners Lock Services
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Technician in a cap and glasses holding a small key fob beside the dashboard of a black motorcycle in a garage.
Hands holding a round metal component against the exposed mechanism inside an open safe door. — Safe Opening & Combination Change, Brampton

High security · Brampton

High Security Locks

You run a home office with client files and equipment, and your insurer has asked what kind of lock is on the door.

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In plain words

For a business, high security locks are as much about paperwork as metal. A restricted or patented key system registers the premises with the locksmith, names who may order keys, and numbers every key cut. That is what turns a lost staff key from a mystery into a line in a log. The hardware backs it up: cylinders with sidebars and hardened inserts, heavy-duty deadbolts or mortise locks, and strikes set into the structure. Where several doors are involved the keys can be arranged so a manager carries one key and staff carry keys that open only their own areas.

Sound familiar?

You run a home office with client files and equipment, and your insurer has asked what kind of lock is on the door. The honest answer is the builder's knob lock and a light deadbolt from when the house was new.

How the visit goes

High Security Locks

How the visit goes

Technician in a green jacket pointing a pen at an open notebook while a seated person listens at a wooden table.
Technician in a cap using a yellow drill at the round bore of a dark door, with a black knob below it.
  1. Who holds keys and who should

    For a business or a rental, the locksmith asks to see the key list, or helps you start one. Which keys exist, who carries them, which doors they open, and what happens when someone leaves. This is where the case for a patented or restricted key system becomes clear, because the system replaces guesswork with a register: every key numbered, every order authorised by a named person, and no blanks available outside the locksmith who manages it. The locksmith also asks how many people need to reach each area so the keying plan reflects the way the building actually runs.

  2. Retiring the old keys and closing gaps

    Part of the visit is making the old keys meaningless. Once the new cylinders are in, every previous key is tried to confirm it no longer operates anything, and any remaining door on the old keyway is either upgraded or at least rekeyed so an unknown copy has nowhere to go. The locksmith also closes small gaps found during the assessment: replacing hinge screws with long ones, adjusting a closer, adding a cylinder guard, or moving a thumb-turn away from glass. The door leaves the visit as one coherent assembly rather than one strong part among weak ones.

  3. Proof for insurers, landlords and tenants

    You leave with a written record of what was fitted: the cylinder type and its rating, the deadbolt grade, the strike and screws installed, and the key system registration. Insurers sometimes ask for this when a policy specifies stronger hardware, landlords keep it in the property file, and tenants have something to hand back at move-out. It also helps the next locksmith, who can see at a glance what keyway and format the doors carry. Keep the invoice and the key control documents together; they are the paperwork side of a physical upgrade.

High Security Locks

In the van

  • Graded deadbolt with hardened bolt

  • Patented key blanks

  • Hardened cylinder guard ring

  • Pinning kit and plug follower

  • Commercial mortise lock body

Technician in a cap and hooded sweatshirt using a small screwdriver on the lever handle and lock case of a glass door.

High Security Locks

What affects the quote

  1. Condition of the door itself

    A solid door that hangs true takes hardware straight away. A dropped, swollen or hollow door may need hinge work, shimming or a recommendation to replace the slab before the lock is worth fitting.

  2. Glass near the lock

    Sidelights or glazed panels beside the deadbolt may call for a different function or extra hardware to keep the inside turn out of reach, always keeping easy exit in view.

  3. Cylinder only or full deadbolt

    Swapping the cylinder inside a sound deadbolt is a smaller job than fitting a new graded deadbolt through the door, and a knob-only door that needs a fresh bore is bigger again.

What to have ready

  • Which locks are on the door now: knob only, knob and deadbolt, a mortise lock or a lever?
  • Does the door have a closer, push bar, alarm contact or keypad on it already?
  • How many exterior doors do you want included?
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High Security Locks: questions

Questions
Can a hardware store or kiosk copy my new key?

No. The blank for a patented keyway is distributed only through the manufacturer's network to locksmiths who hold the system, and the side milling or angled cuts need a machine set up for that line. A kiosk would have neither the blank nor the cut. Extra keys come through your locksmith, cut from code, once an authorised person has approved the order. That routine is a small inconvenience compared with never knowing who has a copy.

What is the difference between restricted and patented keys?

A restricted keyway is one the manufacturer supplies to a limited set of dealers, so blanks are harder to obtain but not legally protected. A patented key design is protected by a patent for a fixed term, and making or selling the blank without permission is unlawful during that time. Patented systems give the firmer control; restricted ones give a useful step up. The locksmith explains which your chosen line uses and when any patent expires.

Can a high security cylinder be rekeyed later?

Yes. Like any pin tumbler it can be repinned to a new combination by a locksmith who holds the system, so a departed employee's key can be retired without replacing hardware. Some lines use interchangeable cores that swap in moments with a control key, which suits businesses with frequent turnover. Rekeying stays within your registered keyway, so the key control you paid for continues after the change.

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