How to Reverse a Door Lock

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Switch a door lock to the other side of the door.
Switch a door lock to the other side of the door.

When installing a door lock, the keyhole should be positioned on the outside of the door so you can unlock the door with a key from the outside. However, the two sides of a lock assembly are a mirror image of one another, and any lock can be installed with the keyhole facing either direction. Any key-in-knob or deadbolt lock can be easily reversed if it has been installed improperly or you need to change the direction of the keyhole for any reason.

Things You'll Need

  • Philips screwdriver
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Instructions

    • 1

      Unscrew and remove the trim screws from around the lock with a Philips screwdriver. Remove the trim if possible at this point and set aside.

    • 2

      Unscrew and remove the edge plate screws from the trim around the bolt with a Philips screwdriver if reversing a deadbolt lock. Pull the trim and bolt from the door edge and set aside.

    • 3

      Pull the doorknobs or lock trim apart and out of the door panel. Replace the knobs or lock cylinder on the opposite sides of the door panel.

    • 4

      Replace the deadbolt and edge plate. Replace the lock trim and all screws. Test the lock.

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References

  • "Windows & Doors"; Ron Hazelton, et al.
  • Photo Credit Jupiterimages/BananaStock/Getty Images

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