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Phoenix High Security Locksmith

High Security Lock Installation

Pick-, bump-, and drill-resistant locks and keys you cannot copy at a hardware store.

Phoenix’s High Security Locksmith

ACME Locksmith handles high-security lock installation and service across the Phoenix metro, the same locks trusted by banks, schools, medical offices, and government facilities. We are a licensed, veteran-owned Phoenix company, open since 1997, with four shops and more than 170,000 completed jobs. We install Medeco, Mul-T-Lock, ASSA, and Marks cylinders that resist picking, bumping, and drilling, with patent-protected keys that cannot be copied at a hardware store. We serve Phoenix, Mesa, Scottsdale, Gilbert, and the Valley.

Why High-Security Locks

Standard locks have two weak points. These fix both.

Pick resistant mul-t-lock

Pick and bump resistant

Sidebars, ball bearings, and special keyways defeat the picking and bumping that open standard locks in seconds.

Drill resistant

Hardened plates and Grade 1 materials stop the drill, the fastest way through an ordinary lock.

Copy Restricted Keys

Keys you control

Patent-protected high-security keys need special equipment and a key card to duplicate, so no one copies your key without permission. These keys are not available in big-box stores.

Mul-t-lock’s Bolt and Strike Lock Together

Brands We Install, and Why

Mul-T-Lock is our favorite. Its double dimple-cut keyway resists bumping and picking, and the Hercular deadbolt’s retaining bearing locks the bolt into the frame so it cannot be pried apart. Medeco cylinders are in government buildings everywhere, with cross-cut keys that make bumping impossible.

ASSA and Marks round out the lineup. Marks offers Grade 1 and Grade 2 commercial cylinders at a lower price point. Not ready for a full upgrade? We can drop a high-security cylinder into a Grade 2 lock for better key control without the full cost.

Where High-Security Goes

Business doors

Offices, retail, and medical businesses that may hand keys to employees. Easy-to-copy keys are the weak point now that big box store kiosks will company any standard type of key, even those marked as “Do Not Duplicate”.

Deadbolts

High-security deadbolts from Mul-T-Lock Hercular and Medeco for homes that want serious protection.

Adding a half deadbolt will give you the highest level of security because there’s no keyhole on the outside of the door to attack.

Padlocks

High-security padlocks for gates, storage, and equipment. If you have a vehicle yard, high security padlocks are a must.

High security padlocks have at least 3/8 inch thick shackles and shackle guards to protect them from cutting, as well as restricted key ways to protect them from being picked or drilled.

Want to understand lock grades? Read our guides on ANSI lock grades and BHMA ratings.

Serving the Phoenix Valley

We serve the entire Phoenix Valley from four shops: Phoenix, Mesa, Scottsdale, and Gilbert, with mobile service across the metro.

What Customers Say

  • Avatar Dominic ★★★★★ a month ago
    I needed some Medeco keys cut and they were able to help. Willie did so in a friendly and efficient manner. I would recommend this place if you need some keys cutting. 👍👍
  • Avatar brianyee ★★★★★ 5 months ago
    Willie was a 100% joy to work with. Made the steps of duplicating my medeco lock key a breeze. Called not once, but TWICE to let me know my key arrived earlier than expected. I’ve done business with Acme for over twenty years for all my … More security needs and am not likely to change. Thanks again Willie!
  • Avatar LaTosha T ★★★★★ 9 months ago
    Brought in my 30 year old Medeco lock and needed some extra keys made. Not an easy job, but Willie was great and took the time to get me some spare keys made. So glad I found ACME! I won’t go anywhere else for locksmith issues/repairs. … More

High Security Locksmith FAQ

What makes a lock high-security?

Pick, bump, and drill resistance from sidebars, hardened plates, and Grade 1 materials, plus a patent-protected key that cannot be copied at a hardware store.

How do I know if I already have high-security keys?

They look unlike any normal key: dimples drilled into the face, side grooves milled down the middle, and often a patent number stamped on the key. Bring it by and we will confirm.

Do 'Do Not Duplicate' keys protect me?

No. DND keys are copied at hardware stores all the time. Real protection comes from a patented key that needs special equipment and a key card to duplicate.

Are high-security locks worth it for a home?

For most businesses, yes. For homes it depends. If your doors are solid, a high-security cylinder is a big upgrade, and we can also add one to a Grade 2 lock for better key control at lower cost.

Which brand is best?

We install Mul-T-Lock, Medeco, ASSA, and Marks. Mul-T-Lock is our favorite for its bump-resistant keyway and frame-locking deadbolt. We match the right one to your needs.

Upgrade to High-Security in Phoenix

Protect your doors and your keys. Call for a free recommendation.

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(602) 422-9879
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