You can rekey or change locks, and both can enhance security and prevent unwanted access. Each one has its own benefits and use cases. You might wonder which one to choose when you lose your keys, move into a new house, or your locks are old and damaged. Here, we will help you decide whether to choose lock rekey or lock replacement based on the situation.
The Difference Between Lock Rekey and Changing Locks
Before you decide to rekey or change locks, let’s understand them better. Lock rekey is when you change the internal components of a lock so that the old key does not work anymore. You can change the old key to a new one without replacing the entire lock. Another option is to change the lock completely and replace it with new hardware which is changing locks.
Read more: “Real Cost of Changing Door Locks: 2025 Breakdown”
When to Choose Lock Rekey
Let’s take a look at situations where a lock rekey can be a good option.
1. You Lost Your Key or Had It Stolen
Did you just lose your keys? Did someone steal them? It’s important to act quickly and rekey your locks. The old keys will no longer work, so no one can use them to gain access to your property.
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2. You Move Into a New House
Never forget to rekey the locks right after you move into a new house. Previous owners or real estate agents may still have copies of the keys.
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3. You Don’t Want Previous Occupants to Have Access
If an ex-partner or roommate used to live with you, a lock rekey can be a great option to enhance security and prevent them from entering your house without permission.
4. You Want to Use One Key for All of the Locks
Are you tired of using multiple keys for different doors in your house? A residential locksmith can rekey the locks so you can use the same key for all of the doors.
5. You Want to Improve Security Without Changing the Locks
If your locks are in good condition and you want to enhance the security of your property anyway, you can rekey the locks. It’s also a more budget-friendly option compared to replacing a lock.
When to Choose Changing Locks
Here are some occasions where it’s better to replace your locks.
1. Your Locks Are Old or Damaged
Locks can degrade over time due to heavy use or lack of maintenance. When you see signs of wear or malfunction in your locks, it’s time to change them to improve security and prevent lockouts.
2. You Want the Lock to Match Your Home Design
You can change the locks if the current ones don’t match the decoration in your house. There are different styles, colors, and brands of locks available to give your property a fresh look.
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3. You Want to Upgrade to Smart or Keyless Locks
Smart locks or keypad entry systems can offer remote access and activity tracking. To install them, you need to replace the locks entirely because most older locks are not compatible with new systems.
4. Rekeying Is Not Possible
Sometimes, you can’t rekey your locks because the outdated lock type might not allow it. So, when you move to a new place, you can hire a residential or mobile locksmith to change the locks instead.
5. You Want to Reset Security Completely
You can have peace of mind and enjoy more security if you completely change your locks. In situations where you have handed out keys to others or lost your keys, full lock replacement can give you a higher level of safety.
Rekey or Change Locks: Pros & Cons
If you still can’t decide whether to rekey or change your locks, let’s take a look at their pros and cons.
Pros and cons of lock rekey:
| Pros | Cons |
| Cost-effective Quick & convenient Maintains aesthetics | No physical upgrade |
Pros and cons of replacing locks:
| Pros | Cons |
| Enhanced security Solves hardware issues | Higher cost Longer installation |
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Hire a Locksmith to Rekey or Change Locks
Now that you know when to rekey or change locks, you can easily decide which one fits your needs better. There are DIY methods you can use, but we recommend you hire a locksmith to save time and ensure better security. If you’re locked out of your house, 247 GTA Locksmith offers skilled emergency locksmiths in Toronto with 24/7 services.
FAQ
Is it better to rekey or change locks?
Rekey the locks if you lost your keys, moved to a new house, or want to use one key for all of the locks. Replace the locks if your locks are old and damaged, rekeying is not possible, or you want to upgrade to smart or keyless locks.
How much does it cost to rekey a lock and to replace a lock?
Replacing a lock can cost around $75-$200 based on the lock type. Rekeying usually costs $40-$90 or more if you want extra keys.
How often should I rekey my locks?
It depends on things such as lost keys or security concerns. But generally, it is recommended to rekey your locks every few years.
Can I rekey a lock myself?
Yes. Although there are DIY methods, which you can use to rekey a lock yourself, we recommend you hire a locksmith to ensure quality work and security.
Have you ever had to rekey or change locks in your home or business? Share your experience or ask your questions in the comments. We’re happy to help!