Anti-drill · Anti-pick · Restricted keys
High Security Locks King City
Cylinders that resist drilling and picking, and keys that a hardware store cannot copy. Worth it on the right door — and we will tell you which doors those are.
What you are buying
Three Separate Things Wearing One Label
“High security” is not a standard. These three properties are.
Attack resistance. Hardened steel anti-drill pins and inserts inside the cylinder that destroy a drill bit before it reaches the shear line. Anti-pick pin shapes — spools, serrated and mushroom pins — that give false feedback and make picking dramatically harder. On a UPVC door, anti-snap construction that sacrifices the outer section of the cylinder without opening the lock.
Key control. A restricted keyway whose blanks are not sold to the public. Copies can only be cut by an authorised locksmith, against your written authority. This is the property most people underestimate and the one that most often matters.
Build quality. Tighter machining tolerances, more pin stacks, harder materials. It resists picking, it resists wear, and it lasts considerably longer on a high-use door.
You can buy any one of these without the others. A cylinder with anti-drill pins and an open keyway resists attack and does nothing about the copy of your key that a former contractor still has.
Where it earns its place
Doors That Deserve High Security
And, just as importantly, the ones that do not.
A front door with no other protection
Where the door and frame are already sound and the cylinder is the weakest remaining link. That is the correct order of spending.
Properties with a lot of key history
A house that has changed hands several times, or had extensive renovation work. A restricted keyway resets key control permanently.
Rural and unobserved properties
Long driveways, detached garages, no passing traffic. An attacker has time and privacy, which is exactly what attack-resistant hardware is designed to take away.
Businesses and rentals
Where an unauthorised copy would be a real problem. Key control is worth more here than attack resistance.
Tack rooms, feed stores and workshops
Outbuildings holding far more value than their hardware suggests, often with nobody nearby at night.
Not every interior door
A bedroom or office door does not need this, and fitting it there is money that would do far more on the back door or the frame.
The honest caveat
A High-Security Cylinder In A Weak Frame Is A Waste Of Money
This is the part that gets left out of the sales conversation, and it matters more than the cylinder itself.
Forced entries do not defeat the lock body. They break the frame beside it. A standard strike plate held by two short screws into the jamb trim will fail under a solid kick regardless of whether the cylinder behind it cost forty dollars or four hundred. The bolt stays locked; the wood does not.
So the order of spending is fixed: reinforce the frame first, then buy the grade the door genuinely needs. A box strike anchored with three-inch screws into the structural stud, long screws in the hinges, and solid backing where the framing is hollow.
Do that, and high-security hardware performs the way it should. Skip it, and you have bought a very well-made lock to protect a strip of trim.
Spend in this order
✓ 1. Box strike and 3-inch screws into the stud.
✓ 2. Long screws in the top hinge.
✓ 3. A deadbolt with a full one-inch throw.
✓ 4. Lighting and sightlines at rear entries.
✓ 5. Then the high-security cylinder.
✓ 6. Restricted keyway if copies matter.
Steps 1 to 3 cost less than dinner and do more than step 5 on its own.
Key control
The Part Almost Nobody Thinks About
Ask yourself how many copies of your house key exist. Not how many you have — how many exist. On a property that has had trades, tenants, cleaners or a previous owner, the honest answer is that you cannot know.
A restricted keyway solves it going forward. The blanks are not sold to the public and are not stocked by hardware stores or kiosks. A copy can only be cut by an authorised locksmith, and only on the written authority of whoever is registered as the holder.
That means the number of keys to your property becomes a number you actually control. You know how many exist because you authorised every one of them.
On a business it also means an employee cannot quietly cut a spare on their lunch break, and that a departing staff member returning “their key” is meaningful rather than symbolic.
What About Bump Keys And Picking?
Lock bumping gets a lot of attention online and very little in real break-ins. It requires the right blank, practice, and standing at the door doing something that looks exactly like what it is. Almost nobody bothers when a kick is faster and quieter to plan.
That said, security pins — spool, serrated and mushroom — defeat bumping and casual picking effectively, and they come as standard on high-security cylinders. If it is on your mind, this is the hardware that addresses it.
The realistic threat to a King Township home is still force, and the realistic defence is still the frame. But if the frame is already sound, this is a genuine and worthwhile next step.
Questions
Frequently Asked Questions
Are high-security locks worth the money?
On the right door, yes — especially the key-control side. On a door with a weak frame, the money is better spent on the frame first, and we will say so.
Can I still get spare keys cut?
Yes, by us, on your written authority. That is the point of a restricted keyway: copies exist only when you approve them.
Will it fit my existing door?
Usually. Most high-security cylinders come in standard formats that drop into existing prep. Mortise and multipoint doors need format-specific units, which we check first.
Do they resist drilling completely?
Nothing resists everything. Hardened anti-drill pins and inserts make it slow, loud and likely to fail — which in a real attempt is the same as stopping it.
Can my whole property use one high-security key?
Yes. House, garage, barn and outbuildings can be keyed alike on the same restricted keyway, which is usually the arrangement people want.
What happens if I lose a restricted key?
Tell us. Depending on the system we can rekey to a new combination on the same keyway, so the lost key is dead and your hardware stays.
Service area
We Come To You
We are a mobile service — there is no shop counter to drive to. King City is our base, and we cover King Township and northern York Region.
Not on the list? If you are anywhere in York Region, call and ask.
Locked Out? We Answer The Phone.
24/7 mobile locksmith service across King City, Nobleton, Schomberg and York Region. Real prices on the phone, a marked vehicle at your door, and a written invoice when we are done.