High-security locks with keys that can't be copied
Medeco and Mul-T-Lock cylinders and deadbolts for apartments, homes and businesses. Pick and drill resistant, with restricted keys only an authorized dealer can duplicate.
- Medeco and Mul-T-Lock
- Restricted, key-control keyways
- Upgrade existing doors without replacing everything
Why upgrade to high-security?
Standard locks can be picked, bumped or copied at any key kiosk. High-security cylinders use patented keyways and extra locking elements that resist picking, bumping and drilling.
Just as important is key control: restricted keys can only be duplicated through an authorized locksmith with proof of authorization, so you always know how many keys exist. That's especially valuable for buildings, offices and anyone who has had keys go missing.
High-security options
Cylinder upgrades
Swap the cylinder in your existing mortise lock or deadbolt for a high-security one.
High-security deadbolts
Complete deadbolts built to resist forced entry.
Restricted key systems
Key control for buildings and businesses, with duplication only through us.
Master keyed systems
High-security master key systems for property managers.
Storefront cylinders
Upgrade aluminum storefront and commercial door cylinders.
Key duplication
Authorized duplicates for existing restricted systems.
How a high-security locks job goes
Choose the system
Medeco or Mul-T-Lock, matched to your door and existing hardware.
Register your keys
Restricted keys are recorded so only authorized copies are made.
Install the cylinder
Fitted into your existing lock or a new one, then tested.
High-Security Locks FAQ
Related services
What's the difference between Medeco and Mul-T-Lock?
Both are leading high-security brands with restricted keyways and strong pick and drill resistance. They use different key designs. We'll recommend one based on your door, existing hardware and budget.
Can I keep my existing lock?
Often, yes. Many mortise locks and deadbolts can take a high-security cylinder, which saves money.
Can high-security keys be copied?
Only through an authorized dealer with proper authorization, which is the point. That's how you keep control of who has keys.
Are high-security locks worth it for an apartment?
If your door gets a lot of traffic, you've had keys go missing, or you want peace of mind, yes. A cylinder upgrade is an affordable place to start.
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