Hands fitting a steel door knob into the bore of a dark door, with a yellow drill and tool bag behind. — Sherwood Forrest

High security · Sherwood Forrest

High Security Locks

Open 24/7

You jiggle the key a little and the old deadbolt opens even when the cut does not look quite right. If your worn key can do that, you wonder what a stranger with the right tools could do.

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In plain words

Most break-ins do not involve picking; they involve a boot, a pry bar or a key that should never have been copied. High security hardware answers all three. A deadbolt with a full one-inch throw and a hardened core resists sawing and kicking, a reinforced strike with three-inch screws keeps the jamb whole, and a patented keyway means a copy can only be made through the locksmith who holds your system. The pick, bump and drill resistance of the cylinder is the layer on top. The locksmith's job is to fit those layers to your particular door and your particular worries.

Sound familiar?Sherwood Forrest

The call: 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.

NextHow the visit goes

High Security Locks · Sherwood Forrest

How the visit goes

Technician holding a key fob over a metal workbench with a rugged tablet and loose fobs, beside a gray SUV. — Sherwood Forrest

Scene 1
Door, hinges and what surrounds them
The door itself is inspected as part of the lock. Hollow-core doors, thin panels beside the lock, and hinge screws that barely bite into the frame all undo the value of a strong cylinder. The locksmith checks how the door hangs, whether it drags or needs a shoulder to close, and whether the hinges are on the secure side. Glass close to the lock is noted, because a hand through a broken sidelight can reach an inside thumb-turn. None of this rules out an upgrade; it shows which supporting pieces belong in the plan so the whole opening is brought up together.
Scene 2
Heavy hardware for commercial doors
Storefront, warehouse and office doors take heavy-duty lock bodies rather than residential deadbolts. Depending on the door, that means a commercial deadbolt or mortise lock with a hardened cylinder guard, a free-spinning collar that defeats wrenches, and a laboratory-rated cylinder inside it. Narrow aluminium doors get a deadlock made for their stile. The locksmith fits the lock to the existing preparation where it is standard, adjusts the strike in the frame, and confirms that any exit device or closer on the same door still works exactly as before so people leave easily while the door holds from outside.
Scene 3
A door that shuts like a vault door, quietly
With a heavy bolt, a deep strike and long screws in the frame, the door feels different when you lock it: the bolt travels its full length and seats with a solid, quiet stop. That feel is your ongoing check. If the bolt ever starts to drag or you need to lift the door to lock it, the door or hinges have moved with the seasons and a small adjustment restores it. Wood doors swell in humid summers and shrink in dry winters; a glance at the hinge screws and the strike each spring and autumn keeps everything aligned.

In the van

Three-inch strike and hinge screws
Code key cutting machine
Box strike
Pinning kit and plug follower
High-security cylinder

What shapes the quoteErindale Lock Experts

Distance and access: A rural property, a high-rise with loading dock rules or a site that must be visited outside trading hours affects travel and scheduling, and the quote says so plainly.
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.
Number of doors: Each door gets its own cylinder or lock, strike work and testing. Several doors on one keyway share the setup cost of the key system but add hardware and time per opening.

FeesSame any hour

Have it ready

Before you call · 0 / 3

How many exterior doors do you want included?
Is there a window or sidelight within reach of the lock?
Would you like all doors on one key, or different keys for different areas?

(289) 805-4851

Let's clear a few things up

What is bumping, and does this stop it?

Bumping uses a specially cut key that is struck while under light turning pressure, bouncing the pins to the shear line for an instant so an ordinary cylinder opens. It works on many standard pin tumblers. A high security cylinder needs its sidebar released by separately positioned finger or rotating pins at the same moment, and a bump key cannot set those, so the plug stays locked. It is one of the clearest advantages of the upgrade.

Is a high security cylinder really pick proof?

Nothing is beyond a laboratory with unlimited time, so the honest measure is minutes, not absolutes. Rated cylinders are tested to resist skilled picking and impressioning for a set period, and drilling and forcing for another. In the real world that matters because someone at a door has seconds, not a workbench. The sidebar and false grooves in the pins give a picker nothing reliable to feel, and the hardened inserts stop a bit, which is why these attacks move on to easier doors.

What does key control mean in practice?

It means your key can only be copied through the locksmith who manages your system, after checking that the person asking is on your list of authorised names. Blanks for the keyway are not sold to hardware stores or kiosks while the patent lasts. Each key is numbered and recorded, so you know how many exist. For a home that ends the worry about old copies; for a business it turns a lost staff key into a known, manageable event.