willo logo largeDetention Equipment Systems & Controls | Since 1945

Sliding Door Locks

We offer a full range of maximum security sliding door locking devices for cell and corridor doors. These devices have been in use for over 45 years in facilities across the United States and Puerto Rico. Learn more about our sliding door devices by downloading our Sliding Door flyer.

Willo can replace old sliding door locking devices with new four-point locking sliders or we can provide retrofits, a solution which keeps your cost down.

If you can answer “yes” to any of the following questions, you need a Willo solution:

  • Do your sliding door locking devices require daily repairs?
  • Do you need extra staff because some doors don't always lock securely?
  • Do you have old sliders that are worn out?
  • Are repair parts hard to find and expensive?

Our sliding door locking device upgrade kits provide you with new maximum security devices. We use the existing heavy steel components, such as the overhead steel housing, lock post, receiver, door guide, and door. This reduces your cost and drastically shortens the time the cells cannot be occupied. A retrofit will carry a full one-year warranty just as a completely new device does.

We can retrofit sliding door locking devices by manufactured by the following companies:

  • Folger Adam
  • Glitch
  • Roanoke Iron and Bridge
  • Southern Steel
  • Stewart Decatur
  • Fries
  • Willo

For more information about our sliding devices and retrofits, please contact us at This email address is being protected from spambots. You need JavaScript enabled to view it. or by calling 256-353-7161.