Handheld diagnostic unit with a screen and buttons lying on a dirty car floor mat, cabled to a port under the dash. — Cavan Monaghan

High security · Cavan Monaghan

High Security Locks

Open 24/7

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.

Request a visit

In plain words

This service suits anyone who wants to stop wondering. Homeowners who have inherited unknown keys with a house, landlords who want one controlled key system across units, and businesses protecting stock, records or medication all ask for it. The locksmith explains the choices in plain terms, from a graded deadbolt with a patented cylinder up to laboratory-rated cylinders and heavy commercial lock bodies, and helps you decide which doors deserve which level. Then the work is done cleanly, every key is tested in every lock, and you leave with the documents that let you control future keys.

Sound familiar?Cavan Monaghan

The call: 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.

NextHow the visit goes

High Security Locks · Cavan Monaghan

How the visit goes

Person in an apron holding a car key fob beside a key-cutting machine, with rows of key blanks on the wall. — Cavan Monaghan

Scene 1
The bolt, the pocket and the strike
A deadbolt is only as good as how far it reaches and what it reaches into. The locksmith measures the throw of the bolt with the door closed, checks that it fully extends without the door being lifted or pushed, and looks at the pocket it enters in the jamb. A shallow pocket, a stamped strike plate and screws barely longer than a thumbnail are the usual finding on a builder-grade door. Then the frame is examined for splits, soft wood and gaps behind the jamb, since a kick lands on the strike, not on the cylinder.
Scene 2
Fitting a heavier deadbolt
When the existing deadbolt is light or worn, the locksmith fits a graded deadbolt through the same bore where possible. The bolt throws a full inch and carries a hardened steel pin that turns under a saw blade, and the housing keeps part of the bolt supported against a kick. The latch is set in the edge bore with the correct backset, the exterior housing and interior thumb-turn are joined through the door with the long screws, and the final tightening is done by hand so nothing strips. The bolt is then thrown with the door open and closed to confirm it extends completely.
Scene 3
Watching the patent calendar
Patented keyways protect you for as long as the patent lasts. When it expires, blanks may be sold openly and the copy-control layer weakens, though the mechanical resistance of the cylinder stays. The locksmith notes the patent term of your system at handover so the date is not a surprise. Many years before it arrives, the same hardware can usually be moved to a newer patented keyway by changing cylinders and keys while the lock bodies stay. Treat it like a roof: nothing needs doing for a long while, but the date is written down.

In the van

Wrap-around door reinforcer
Reinforced strike plate
Graded deadbolt with hardened bolt
Commercial mortise lock body
Hardened cylinder guard ring

What shapes the quoteAshburnham Lock Experts

Key control level: A patented keyway with authorisation cards covers most homes. Geographically exclusive keyways and signature-controlled systems for businesses carry registration and administration that show in the quote.
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.
Documentation and registration: Setting up the key register, recording signatories and providing a written schedule of cylinders and keys is real work on a business system and is listed rather than hidden.

FeesSame any hour

Have it ready

Before you call · 0 / 3

For a business, who should be allowed to authorise new keys?
Would you like all doors on one key, or different keys for different areas?
Is this a house, condo, rental unit or business premises, and do you own or manage it?

(249) 494-7410

Questions we hear most

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.

What should I do when a controlled key is lost?

Tell your locksmith so the register is updated, then decide together what the loss means. If the key was lost with nothing identifying your address, the practical risk is low and many people simply strike it off. If it went missing with identification or from a known person, the affected cylinders can be repinned so that key stops working while the rest of the system continues. Because the keyway is controlled, you know that no further copies exist.

What information helps before the visit?

A photo of each door's lock from inside and outside, the type of door, whether there is glass nearby and roughly how many keys are in circulation. For a business, a sketch of the doors and who needs to reach each area saves a great deal of time. Mention any door that sticks, has been forced or has a closer or push bar on it. With that, the locksmith arrives with the right formats and a plan to discuss.