Tools & materials
- New deadbolt (match the 2-3/8 or 2-3/4 inch backset)
- Screwdriver or drill
- Tape measure
- 3-inch screws for the strike plate
Step by step
- Step 1
Measure the backset (door edge to the center of the hole) so you buy a matching deadbolt.
- Step 2
Unscrew the interior thumb-turn, pull out both halves and remove the bolt from the door edge.
- Step 3
Set the new bolt to the correct backset, insert it in the edge with the bevel or arrow facing up, and screw it in.
- Step 4
Slide the exterior cylinder through the bolt, then attach the interior turn and screws.
- Step 5
Install the new strike plate using 3-inch screws so it anchors into the framing.
- Step 6
Test with the door open and closed. The bolt should throw fully without forcing.
When to stop and call ProFix
If you see any of these, stop and call us:
- The holes don't match and need re-boring
- The door edge or frame is split
- You want a smart lock with wiring or a keypad that needs power
- You manage rental units and need multiple locks rekeyed
Not in the mood to DIY? A ProFix pro can handle it for you in Chicago Metro and Dallas–Fort Worth, with a written price before work starts.
Related guides
These guides are general information for simple repairs. You're responsible for your own safety and for following local codes and your lease or HOA rules. When in doubt, stop and call a licensed professional. All DIY guides