Upgrade Your Security with High-Security Lock Systems

Most residential deadbolts sold in the US are designed to stop an opportunist, not a determined attacker. That is a reasonable trade for many homes. But there are situations — a business, a building where too many keys are floating around, a property with a history of break-ins — where the standard lock is genuinely the weak point.

This guide covers what “high security” actually means, when the upgrade earns its cost, and when it does not.

What makes a lock “high security”?

The term is unregulated in marketing, so the meaningful measure is the ANSI/BHMA grade and the specific attack resistances built in.

• Pick resistance — security pins (spool, serrated, mushroom) that give false feedback and defeat straightforward picking.
• Drill resistance — hardened steel inserts at the points a drill would target.
• Bump resistance — design that defeats the bump key technique, which opens a great many ordinary pin-tumbler locks in seconds.
• Pull and pry resistance — reinforced housings and anti-pull features.
• Key control — a patented, restricted keyway. This is the feature people underrate most: blanks are not commercially available, so keys cannot be copied at a kiosk or hardware counter without your authorization.

On grading: Grade 1 is commercial-duty and the highest, Grade 2 is a solid residential-plus level, Grade 3 is basic residential. A Grade 1 deadbolt on a home exterior door is a meaningful upgrade over the Grade 3 that came with it.

Which brands are worth knowing?

• Medeco — long-standing US high-security name; keys use both cut depth and pin rotation, which makes picking genuinely difficult.
• Mul-T-Lock — telescopic pin-in-pin design, strong key control, widely used commercially.
• ASSA ABLOY — very broad range from residential to institutional grade.
• Schlage (Grade 1 lines) — accessible step up with good drill and pick resistance, less strict on key control.
• Corbin Russwin — common in commercial and institutional buildings.

Is key control the real reason to upgrade?

For many DC customers, yes — more than resistance to picking, which is a rarer attack than people imagine.

Consider a small office on K Street that has been through several staff turnovers, or a rowhouse that has been a rental for a decade. Nobody knows how many keys exist. Any one of them could have been copied at a hardware store for a couple of dollars, and there is no way to know.

A restricted keyway ends that. Copies require your authorization through the dealer, so the number of keys in existence is a number you actually know. For landlords, property managers, and any business with employee turnover, that is usually the whole value proposition.

When is a high-security lock not the right spend?

Being straight about this: a high-security cylinder in a weak door is money badly spent. Before upgrading the lock, check that:

• The door is solid core, not hollow
• The frame is sound and not split from previous forcing
• The strike plate is reinforced and fastened with 3-inch screws into the stud — the single cheapest, highest-impact security fix there is
• The hinges are secure and, on an outswing door, have non-removable pins
• Adjacent glass is not within arm’s reach of the thumbturn

Most residential break-ins are forced entries against the door and frame, not attacks on the cylinder. If the frame gives way with one kick, the lock’s grade is irrelevant. Fix the assembly first, then upgrade the cylinder.

It is also worth noting that if your concern is simply that old keys are floating around, rekeying your existing locks at $45+ each solves that far more cheaply than new hardware.

What about DC’s historic doors?

Georgetown, Capitol Hill, and much of Adams Morgan have original doors, often with mortise locks and sometimes under historic-district rules that limit visible exterior changes. High-security retrofits do exist for mortise cases — a high-security cylinder can frequently be fitted into an original lock body, preserving the door’s appearance while upgrading what protects it.

This is specialist work. Done badly it means irreversible damage to a door that cannot be replaced.

Frequently asked questions

Are high-security locks worth the extra cost?

For businesses, rental properties, and anywhere key control matters, generally yes. For a single-family home with a sound door and few keys in circulation, a Grade 1 deadbolt plus a reinforced strike usually delivers most of the benefit for much less.

Can high-security keys be copied?

Not at a hardware store or kiosk. The keyways are patented and blanks are restricted, so duplication runs through an authorized dealer and requires your authorization — which is exactly the point.

What is lock bumping?

A technique using a specially cut key and a sharp tap to momentarily jump a lock’s pins to the shear line, opening it in seconds. It works on many ordinary pin-tumbler locks. High-security cylinders are specifically designed to defeat it.

Can a high-security lock be picked open if I get locked out?

That is the trade-off — these locks resist entry by design, including ours. Non-destructive opening is sometimes possible, but a drill-and-replace is more likely than with a standard lock, and that is the cost of the protection.

Can I put high-security locks on my historic DC door?

Usually yes, via a cylinder retrofit into the existing mortise case, which keeps the original appearance. It requires someone who has done it before on doors like yours.

Upgrading security in DC

High-security locks start at $185+, smart locks and keyless entry at $195+, and master key systems at $95+. Mr. Locksmith DC supplies and installs all three across Washington, DC — for homes, offices along K Street and Downtown, and rental properties throughout the District. We will tell you honestly if a reinforced strike and a rekey would serve you better than new hardware.

Call (202) 630-4979 or see our commercial locksmith services.