Should You Replace or Rekey Locks?

Looking to change or rekey? Learn how to keep your locks on lock.

A locksmith changes a door’s lock
Photo: Valentyn Semenov / EyeEm / EyeEm / Getty Images
A locksmith changes a door’s lock
Photo: Valentyn Semenov / EyeEm / EyeEm / Getty Images
Lawrence Bonk
Written by Lawrence Bonk
Contributing Writer
Updated October 16, 2023
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Your lock is your first line of defense when it comes to your home's security. Whether you just moved into a new house or have been in your home for a decade, it may be time for a professional locksmith to rekey or change your locks. But what’s the difference, and which route should you take?

When to Rekey Your Locks

Rekeying is a quick way to upgrade your current locks, depending on the type of deadbolt you have. If you have a quality lock that works well, rekeying it is your best option.

Some locksmiths may tell you that you should change your locks. But in many cases, you can just rekey them, which means changing the existing lock system so a new key operates it. A locksmith simply replaces the tumblers and pins to create a lock that can be opened with a brand-new key. The locksmith can also check on the lock’s condition and add lubrication to maintain your lock. Are you planning to rekey your locks? You’re likely stuck in one of the following situations.

Locks That Require Multiple Keys

Lighten the load on your keychain and eliminate confusion by rekeying every lock to the same key.  To do this, locks throughout your home need to be the same brand or have the same type of keyholes to rekey. Before calling your locksmith, you can test this out by trying your keys in the locks you want rekeyed to see if they have the same keyholes. If they slide right in, you’re good to rekey.

Moving

After moving into a new home, you don’t know who else has a key to your door. Ensure that only you and your family have access to your new home by having your doors rekeyed.

Lost Key

You lost a key, and you’re worried someone may find it and use it to access your home. If that’s the case, it’s best to start fresh with a new set of keys.

Concierge Services Change

You are changing concierge services, like housekeepers, babysitters, or pet sitters, who have a copy of your house key.

Rekeying Lock Cost

When rekeying your locks, you pay primarily for the labor, not the parts, which makes it more affordable than changing out the lock completely. The cost of rekeying can range from $50 to $100 on average.

Make sure you have the old key. The locksmith can always pick your lock, but that will cost extra.

Can You Rekey a Home Yourself?

If you’re in a pinch, it’s relatively easy to rekey your door locks on your own. The easiest method is to purchase a rekey kit, including pins, keys, and various other tools. Rekey kits typically cost $10 to $25 each.

However, don’t buy the first rekey kit you find on the hardware store shelf. Ensure that you buy a rekey kit from the same manufacturer as your home’s locks.

Changing Your Locks

A hand unlocks a door by using a key
Photo: inga / iStock / Getty Images Plus / Getty Images

When you change your locks, a local locksmith installs an entirely new lock with a new key. This service is pricier than having your locks rekeyed, as you are paying for not just the labor of the locksmith, but also the hardware of a whole new locking system. Changing your locks costs around $75 per hour.

Can You Change Locks by Yourself?

It’s possible to change locks on your own, but only under the right circumstances. If you live in an older home, it may be difficult to find replacements for aging locks. On the other hand, if you want to install a master key system, you’ll likely need the help of a pro to facilitate this whole-house system.

But if you need to change a standard lock in a modern home, you can likely make it a DIY project. You’ll need to remove and replace the deadbolt lock and hardware, ensuring that you test it before calling it a day.

Reasons You Should Change Your Locks

Considering whether to change your lock? Use this guide to determine whether it’s time to switch up your locks.

Changing the Look 

Your home’s locks are a relatively easy feature to change if you want to upgrade their look. For example, if you are changing up the metal hardware throughout your home and want a more cohesive look.

Switching to a Keyless Lock System

If you’re ready to upgrade your home security system to include a modern keyless lock system, you’ll need to change your locks. Follow the lock system’s guidelines for DIY installation or hire a pro to tackle the task.

Upgrading to a Master Key System

Your locks are different brands and types, and you want them all to work with the same key. You’ll need to hire a local locksmith to set up a master key system in your home.

Using a Low-Quality or Older Lock 

If your keys get stuck and lubricating the hardware doesn’t help, it’s time to upgrade to a new set. Major signs of keys in disrepair are rust spots or broken or chipped pieces. If you already have high-quality locks, opt for rekeying.

Frequently Asked Questions

Yes, you should change the locks as soon as you can after completing the purchase of a house. This is a matter of privacy and security, as you have no idea how many copies of the keys the previous owner made. You can change the locks yourself or hire a pro to replace or rekey the lock, which costs $50 to $100.

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Learn more about our contributor
Lawrence Bonk
Written by Lawrence Bonk
Contributing Writer
As a technology enthusiast with a professional focus on smart home appliances and accessories, Lawrence Bonk keeps a keen eye on the home improvement innovation space. He is constantly searching for new and convenient ways for homeowners and renters to make the most of their domiciles and has written for publications such as Huffington Post, Engadget, CBS, and many more.
As a technology enthusiast with a professional focus on smart home appliances and accessories, Lawrence Bonk keeps a keen eye on the home improvement innovation space. He is constantly searching for new and convenient ways for homeowners and renters to make the most of their domiciles and has written for publications such as Huffington Post, Engadget, CBS, and many more.
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