If you’ve recently moved into a new home, lost your keys, or want better security. Either way, you’re now asking the same question most homeowners eventually ask:
Should I rekey my locks or just replace them entirely?
Many homeowners comparing rekeying vs replacing locks in Kitchener services aren’t sure which option is better. The truth is, both improve security, but the right choice depends on your locks, your budget, and what you actually need.
The good news? In many cases, you don’t need to replace the entire lock system to regain security. But sometimes replacing the hardware is absolutely the better investment.
Here’s how to decide what works best for your home, budget, and peace of mind in 2026.
What Does Rekeying a Lock Actually Mean?
The process of rekeying a lock requires the replacement of internal pins inside your lock system, which renders all previous keys ineffective.
A locksmith develops a new key system that maintains all existing hardware on your door. Your previous key will stop working if someone possesses your old key.
Professional rekey locks Kitchener services are commonly used after:
- Moving into a new home
- Tenant turnover
- Lost or stolen keys
- Breakups or roommate changes
- Employee or contractor access changes
- Buying older homes in Waterloo or Cambridge
A locksmith can also handle rekeying multiple locks to one key, which Kitchener homeowners often request, which means one single key can operate several doors in your home.
That’s especially useful for front doors, garage entry doors, side gates, and basement entrances.
What Does Replacing Locks Mean?
The process of replacing locks involves removing all existing lock components to install entirely different locking systems.
The process requires installation of deadbolts and handlesets, smart locks, and electronic keypad systems, and high-security lock upgrades.
Homeowners usually choose to replace locks in Kitchener-Waterloo when:
- Locks are damaged or worn out
- They want upgraded security
- The lock brand is outdated
- The hardware no longer matches the home
- They’re switching to smart locks
- The existing locks cannot be rekeyed
The process of replacement creates new key systems together with new physical lock systems, while rekeying only transforms existing key systems.
Rekeying vs Replacing Locks Kitchener: The Biggest Difference
The simplest way to think about it is this:
Rekeying
- Keeps your existing lock hardware
- Changes the internal key pins only
- Usually more affordable
- Faster process
- Great if your locks are still in good condition
- Ideal after moving, losing keys, or tenant changes
Replacing Locks
- Removes and installs completely new locks
- Changes both the hardware and the key system
- Costs more than rekeying
- Best for damaged or outdated locks
- Allows upgrades to smart locks or high-security systems
- Good option if you want a new look or better security features
How Much Does Rekeying Cost in Kitchener, Waterloo & Cambridge?
This is one of the most searched questions and a reasonable one.
For rekeying in Kitchener and Waterloo, you’re typically looking at:
- $25–$50 per lock for the rekeying service itself
- Service/call-out fee of around $50–$85, depending on time of day
- Multiple locks are cheaper per lock when done in the same visit
So if you have 3 locks and want them all rekeyed to one key, you might pay $130–$200 total, including the call-out fee. That’s it.
Compare that to replacing 3 locks with mid-range deadbolts: you could easily spend $350–$600+ once you factor in hardware and labour.
Rekeying costs less sometimes by a significant amount and solves the same security problem in most cases.
Note: Prices vary based on lock brand, time of call (emergency after-hours rates apply), and whether you need new keys cut. Always ask for a clear estimate before work starts. MasterKey gives upfront pricing with no surprises.
Should You Rekey Your Locks After Moving to Waterloo?
Yes, and this applies to Kitchener, Cambridge, and Guelph too.
Whether you’re buying or renting, you should always rekey after moving in. It’s one of the most overlooked home security steps, and it costs very little compared to the peace of mind it gives you.
In Ontario, most locksmiths recommend doing it within the first week of moving in, before you settle in and forget about it.
Can You Rekey Your Own Locks in Ontario?
Technically, yes, rekey kits are available at hardware stores. But there are a few things to keep in mind.
Doing it yourself requires the right kit for your specific lock brand (Schlage, Kwikset, and others all use different pin sizes). If you mix up the pins, the lock can jam or fail to work correctly.
It’s also easy to accidentally damage the cylinder if you haven’t done it before. And if something goes wrong, you could end up locked out, which costs more to fix than just hiring a locksmith from the start.
For most homeowners in Kitchener and Waterloo, calling a professional is faster, cleaner, and not much more expensive than buying the kit and figuring it out yourself. A locksmith can rekey an entire house in under an hour.
Can Multiple Locks Be Rekeyed to One Key in Kitchener?
Yes, and it’s one of the most requested services MasterKey handles. It’s called keying alike. A locksmith adjusts multiple locks so they all respond to the same key. Front door, back door, side gate, and basement entry all with one key.
This works across most standard lock brands. If you have a mix of brands (say, a Schlage front door and a Kwikset back door), a locksmith can often still match them during the same visit.
Quick Answer: Rekey or Replace?
- If your locks are in good shape and your main concern is who has a key, rekey.
- If your locks are old, damaged, or you want a genuine security upgrade, replace them.
If you’re not sure, an expert locksmith like Masterkey Locksmith Glass & Doors can take a look and give you an honest recommendation. There’s no pressure to replace if rekeying will do the job.
Book a Rekeying or Lock Replacement in Kitchener & Waterloo
MasterKey Locksmith Glass & Doors provides fast, professional lock rekeying and replacement across Kitchener, Waterloo, Cambridge, and Guelph. Same-day service available. Upfront pricing, no hidden fees.
