Mul-T Lock High Security Locks Houston TX

High-security locks are the best defense against break-ins. Consumers' understanding of Mul-T-Lock high-security locks aids in understanding why Mul-T-Lock locks are a smart investment.

Mult-T-Lock Applications

For over 40 years, Mul-T-Lock has manufactured high-security locks for every application.

  • Commercial
  • Industrial
  • Institutional
  • Residential


For sales, installation, and service, Locksmith Profy is the Houston area's factory-certified Mul-T-Lock dealer.

The Mul-T-Lock Cylinder

Standard lock cylinders contain an upper and lower set of pins. Turning the key aligns the pins, so the lock opens. Lock picks and bump keys easily defeat a dual row pin arrangement. Mult-T-Lock uses a set of vertical and horizontal pins that make it nearly impossible to line-up all the pins using a lockpick or bump key. Steel bolsters in the cylinder render drilling to release a Mul-T-Lock pointless.

Mul-T-Lock Keys

Standard keys have a row of jagged teeth. Mul-T-Lock keys use grooves and dimples rather than teeth. The key's design makes key duplication apps useless for creating a Mul-T-Lock key.

The Mul-T-Lock Owner ID

Mul-T-Lock cylinders come with an owner ID to keep criminals from acquiring duplicate Mul-T-Lock keys. Only Mul-T-Lock approved companies like Locksmith Profy can reproduce Mul-T-Lock keys. When you contact us to replicate a Mul-T-Lock key, bring your proof of lock ownership. Without the ID, Locksmith Profy cannot cut the key.

The Mul-T-Lock Deadbolt

The knob that locks/unlocks a deadbolt is called a thumb turn. To bypass a traditional deadbolt, a thief only has to break a window to reach in and disengage the deadbolt. Mul-T-Lock thumb turns are removable, so even if they can touch it, a burglar can't release the deadbolt. Interlocking ball bearings make Mul-T-Lock Hercular deadbolts jimmy-proof.

The Mul-T-Lock key and cylinder design make Mul-T-Lock one of the best high-security locks on the market. Locksmith Profy sells, installs, and services Mul-T-Lock in the Houston area. Mul-T-Lock only produces lock cylinders, so we can convert any lock brand to a Mul-T-Lock. To learn more about the advantages of Mul-T-Lock, contact Locksmith Profy.

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