Is It Cheaper to Replace Locks or Rekey Them?
Is it cheaper to replace locks or rekey them? If your lock works and you only need to change who can use a key, rekeying is usually the lower-cost choice because you keep the existing hardware. Replace the lock when it is damaged, unreliable, or you want a different lock.
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Is it cheaper to replace locks or rekey them?
When the lock is in good working order, rekeying is often the less expensive option. A locksmith changes the lock’s key configuration so the old keys no longer operate it, while keeping the existing lock hardware in place. You get a new working key without buying a whole new lock.
Replacement makes more sense when the lock itself is broken, worn, difficult to use, or no longer fits your needs. It can also be the right choice when you want a different style or function, such as changing the hardware as part of a door update. The best comparison is between the condition of your current lock and the total work each option requires.
A low price for one option is not the whole decision. Consider how many locks need attention, whether they can use the same key, and whether the door or frame has a separate problem. For a closer look at what rekeying involves, see our lock rekeying service.
When rekeying a working lock is the better fit
Rekeying is a strong option when you want to stop an old key from working but the lock still turns smoothly and secures the door. That can apply after a household change, a lost key, or a change in who should have access. You do not need a different-looking lock just to change which key operates it.
It may also suit you when several compatible locks should work with the same new key. Ask the locksmith to check whether the cylinders can be keyed alike; compatibility depends on the locks. Do not assume that different locks can all be changed to use one key without an inspection.
If you rent, coordinate with the property owner or manager before authorizing work. If you own or manage the property, make sure you have authority over every lock being changed. That helps avoid a mismatch between your security needs and the building’s access requirements.
When replacing a door lock is worth the added work
Choose replacement when the lock has a mechanical problem that rekeying will not fix. A key that catches, a bolt that will not extend fully, or a lock that feels loose may point to wear, damage, or a door alignment issue. Rekeying changes key access; it does not repair a faulty lock or correct a door that does not close properly.
Replacement is also appropriate if you want hardware with a different function or appearance, or if the existing lock is not suitable for the door. Have the lock and door checked together before choosing hardware. A new lock may not solve the problem if the bolt still misses the opening in the frame.
If the lock is damaged after an attempted break-in or you cannot secure the door, treat the issue as urgent. Avoid forcing the key or taking apart the lock. Call a locksmith to assess whether repair, rekeying, or replacement will restore dependable operation.
Need help now? (240) 366-2739
How rekeying and replacement differ for your door
Use the condition of the lock and the change you need as your starting point. These are the practical differences to weigh before asking for a quote.
Rekey the existing lock
Best when the hardware works and your main goal is to change which key operates it. The lock stays in place, but the old key should no longer operate it after the work is complete.
Replace the lock
Best when the lock is damaged, unreliable, unsuitable, or you want different hardware. The existing lock is removed and new hardware is fitted, so the door and frame should be checked as part of the decision.
What to check before choosing a lock solution
A few observations can help you describe the issue clearly. Do not force a key, remove the lock, or take apart the cylinder to make this assessment.
- How the key behaves — Notice whether the key turns smoothly, catches, or will not turn. Stop if it binds rather than applying extra force.
- How the door closes — Check whether the door closes normally and the bolt lines up with the opening in the strike plate. A misaligned door may need attention in addition to the lock.
- What you want to change — Decide whether you need to change access, fix a faulty lock, or install different hardware. That goal helps separate rekeying from replacement.
- Which keys should work — List the people who need access and whether you want compatible locks to use one key. Do not share sensitive key details with people who should not have access.
- The lock and door condition — Look for visible looseness or damage around the lock, bolt, door, and frame. A flashlight can help you inspect the area without removing any parts.
Eight owner-level steps to decide between rekeying and replacement
These checks help you explain the situation and choose what to ask a locksmith to inspect. They are not instructions for taking apart or changing a lock.
- Set the access goal — Decide whether you need old keys to stop working or need a lock that works differently. Check that you own or are authorized to manage the door.
- Gather the keys you currently use — Set aside the working keys for the lock and note which people need access. Check that you can identify the key for each door without labeling it with a full address.
- Test the lock gently — Use the regular key without forcing it. Check whether it turns smoothly and whether the bolt moves fully when the door is open.
- Inspect the door and frame — With a flashlight, look at the lock, bolt, and strike plate for visible damage or looseness. Check whether the door closes without lifting, pushing, or pulling it unusually.
- Decide whether the hardware should stay — If the lock works and its style and function still suit you, ask about rekeying. If it is damaged or you want different hardware, ask about replacement or repair.
- Identify any locks you want to share a key — Make a list of the doors you would like to operate with one key. Ask the locksmith to check compatibility instead of assuming every lock can be keyed alike.
- Request a clear comparison — Describe the lock’s symptoms, your access goal, and the number of locks involved. Ask what the quote includes for rekeying and, if needed, replacement before authorizing the work.
- Check the finished work — After the locksmith completes the authorized work, test the new key in each affected lock with the door open, then check that the door closes and secures normally. Confirm which old keys should no longer work.
Need help now? (240) 366-2739
Why rekeying alone may not solve the lock problem
A rekey can change key access, but it will not correct a worn mechanism, a bent or damaged key, or a door that is out of alignment. If the key sticks, the bolt drags, or the lock feels loose, explain those symptoms before work starts. The locksmith can assess whether repair or replacement should be considered instead.
Another common complication is assuming that all locks on a property can use the same key. Different lock types or cylinders may not be compatible. Ask for an inspection and a clear explanation of which locks can be included before deciding.
Do not try to force a stuck key or disassemble a lock to determine its type. That can make the problem harder to assess. If you cannot secure the door, or the lock has visible damage, contact a locksmith rather than relying on a lock that may not latch.
What to ask a locksmith before authorizing the work
Ask the locksmith to inspect the lock and explain whether rekeying will address your actual concern. If replacement is recommended, ask what condition makes it necessary and whether a repair is an option. A useful quote should make clear which locks are included and what work is proposed.
The locksmith cost to rekey a lock depends on details such as the lock and the scope of the job, so ask for the price for your specific situation before approving work. If you are comparing options, request a separate quote for rekeying and replacement where both are appropriate. That lets you compare the work itself instead of choosing based on a general estimate.
MD Locksmith offers mobile lock rekeying. Call (240) 366-2739 or contact us to discuss the lock and the access change you need.
Frequently asked questions
Can every door lock be rekeyed?
No. Rekeying depends on the lock and cylinder, and some locks may not be compatible with the work you want. Have a locksmith inspect the hardware before deciding that rekeying is the right fix.
Will the old key still work after a lock is rekeyed?
A successfully rekeyed lock is set to work with the new key rather than the old one. Ask the locksmith to identify which keys should operate each lock, then test the new key after the work is complete.
Should I rekey a lock if my key is sticking?
Not necessarily. A sticking key can point to a problem with the key, lock, or door alignment, and rekeying alone may not fix it. Stop forcing the key and ask a locksmith to assess the cause.
What affects the cost to rekey a lock with a locksmith?
The lock type, the number of locks, and whether you want compatible locks to use one key can affect the work involved. Describe each lock and ask for a quote for your specific job before authorizing service.
Choose the right fix for your lock
Call MD Locksmith to discuss rekeying or replacing your lock.