Moving into a home is a natural time to review who may have keys. Prior owners, tenants, contractors, cleaners, neighbors, and guests can all have had access at different times. The decision is not simply “old lock versus new lock.” It is about key control, hardware condition, fit, function, and how the household wants to manage access.
Rekeying and replacement solve different problems
Rekeying changes the internal combination of a compatible lock so old keys stop operating it. The visible hardware can remain in place. Replacement removes the existing hardware and installs a different lock, which can address damage, poor fit, outdated function, or a desire for a new access method.
| Question | Rekey the existing lock | Replace the lock |
|---|---|---|
| Main goal | Make old keys stop working | Change the hardware, function, or fit |
| Best when | Lock is healthy and correctly installed | Lock is worn, damaged, loose, or mismatched |
| Appearance | Keeps the current finish and style | Allows a new finish or hardware style |
| Access plan | Can key compatible locks alike | Can add a different cylinder, keypad, or smart feature |
| Complexity | Often less hardware change | May require fit, strike, and door/frame adjustments |
A simple decision path
Choose rekeying when the hardware is sound
Rekeying is often a practical first step when the locks operate smoothly, the deadbolts fit the door, the strike plates line up, and your main concern is who can use the old keys. Ask which locks can be keyed alike and make an inventory that includes side doors, garage entries, patio doors, gates, and detached structures.
Choose replacement when the lock itself needs improvement
Replacement deserves consideration when the key sticks, the cylinder is loose, the door is difficult to align, the deadbolt does not extend fully, or the hardware does not match the door. It is also the time to discuss a keypad or smart lock if the household wants codes, temporary access, or app features.
The move-in lock checklist
- Walk the perimeter. List every entry, including garage-to-home doors, side gates, patio doors, and basement or storage access.
- Test existing keys. Note which key opens which lock, whether any key is worn, and whether the lock turns smoothly.
- Look at the door and frame. A new lock will not fix a split jamb, loose strike, or badly sagging door by itself.
- Decide who needs access. Household members, caregivers, contractors, and short-term guests may need different arrangements.
- Ask about key control. Decide where spares will be stored and when old or temporary access should end.
- Check rental or HOA requirements. A lease, property manager, or community rule may control hardware changes.
What can affect the quote
The number of doors, lock types, keyed-alike goals, door thickness, hardware condition, travel, and any needed parts can change the work involved. If you want a clear conversation before dispatch, tell us the approximate number of locks, what you want to keep, and what is not working.
For a Roseville home, start with our residential locksmith services or call Roseville Locksmith CA at (916) 740-7183.