Swapping a standard deadbolt for a new one of the same size is a 15-minute job with a screwdriver.
Step-by-step guide
- Remove the old lock Unscrew the two screws on the inside thumb-turn and pull both halves off the door.
- Take out the bolt Undo the two screws on the door edge and slide the bolt out.
- Fit the new bolt Set the new bolt to your backset, slide it in with the right side up and screw it to the edge.
- Mount the two halves Feed the tailpiece through the bolt, hold the outside cylinder in place and screw the inside half to it.
- Test before closing the door Lock and unlock with the key and thumb-turn with the door open, then closed. If it binds when closed, the strike needs adjusting.
When to call a locksmith
If the steps above do not solve it, or you would rather not do it yourself, see Lock Change & Installation or browse more how-to guides.
Rather have it done for you? Mobile Locksmith DC is open 24/7 with a 15–25 minute response anywhere in Washington, DC. Call (240) 202-2249.