When you get the keys to a new place, you have no idea how many copies exist: former owners, contractors, dog walkers, neighbors. Fixing that is the first security job in any new home.
Rekeying: the usual answer
A rekey changes the pins inside the lock so a new key works and old keys do not. It takes minutes per lock, costs less than new hardware, and lets you put every door on one key.
When to replace instead
- The lock is loose, sticky or visibly worn
- It is a low-grade builder lock on an exterior door
- A door has only a knob lock and no deadbolt
- You want a keypad or smart lock
See lock change and installation.
Rowhouse specifics
Older homes in Capitol Hill, Georgetown, Shaw and Bloomingdale often have mortise locks, which are set in a pocket inside a thick wood door. They can usually be rekeyed and serviced rather than replaced, and keeping them avoids cutting up a historic door. English-basement units should be keyed separately from the main house if they are rented.
Renters
Check your lease before changing anything. Many landlords will rekey between tenants if you ask.
Need help now? Mobile Locksmith DC is open 24/7 with a 15–25 minute response anywhere in Washington, DC. Call (240) 202-2249.