You just bought a house, a roommate moved out, or you lost a key ring. Either way, you want the old keys to stop working. You have two options: rekey your locks or replace them. Here’s how to decide.
What rekeying actually does
Inside every pin-tumbler lock cylinder is a set of small pins cut to match your key. Rekeying means a locksmith takes the cylinder apart and swaps those pins for a new set that matches a new key. The lock stays on your door, it looks exactly the same, and every old key stops working.
Rekeying is usually:
- Less expensive than buying new hardware
- Fast, typically 10–15 minutes per lock
- An easy way to make every door work with one key
When to replace the lock instead
Replacement makes more sense when:
- The lock is damaged from a break-in or forced entry.
- The lock is worn out, loose, sticky or hard to turn even with a good key.
- The hardware is low quality, like a builder-grade lockset with a short bolt.
- You want an upgrade, such as a smart lock, keypad, or a high-security, pick-resistant deadbolt.
- You want a different look for a remodel.
Quick decision guide
| Situation | Best option |
|---|---|
| Moved into a new home, locks work fine | Rekey |
| Lost keys | Rekey |
| Tenant or roommate moved out | Rekey |
| Break-in damaged the lock | Replace |
| Lock is old, loose or sticky | Replace |
| Want keyless or smart entry | Replace |
| Want one key for all doors | Rekey (if the keyways match) |
Don’t forget the strike plate
Whichever you choose, the most common weak point on a door isn’t the lock. It’s the strike plate and frame. A reinforced strike plate held in with 3-inch screws that reach the wall stud makes a door far harder to kick in. We check this on every lock job.
Get it done
We rekey and replace locks for homes and businesses throughout Oakland and Macomb County. See our lock rekeying and lock change & installation services, or call for an upfront quote.