When to Rekey vs. Replace Your Home Locks
- Jeff Starr
- Apr 21
- 4 min read
Getting the keys to a new home should feel like a fresh start—not a source of stress. Yet one of the first security decisions a homeowner or renter faces is often overlooked: Should you rekey the locks or replace them altogether?
At City Lock and Key, we’ve helped countless families and property owners across Niagara Falls, Buffalo, and the greater Western New York area navigate this choice. In this guide, we’ll break down when rekeying is the smarter move, when full replacement makes more sense, and how to make the right call based on your situation.
What Does It Mean to Rekey a Lock?
Rekeying doesn’t change the lock itself—it changes the key that operates it.
During a rekeying service, we:
Disassemble the existing lock
Replace the internal pins to match a new key
Test everything for smooth operation
The lock stays in place, but the old keys will no longer work. It’s fast, secure, and often much more affordable than full replacement.
What Does It Mean to Replace a Lock?
Replacing a lock involves:
Removing the entire existing lock or deadbolt
Installing a brand-new lockset
Issuing new keys for the new hardware
Lock replacement is a bigger investment but allows for a hardware upgrade—such as switching to a higher-security lock or changing the style of hardware to match a remodel.
When Rekeying Your Locks Is the Best Option
In many cases, rekeying offers all the security you need without the cost of full replacement. Consider rekeying if:
You’ve just moved into a new home.
You never know who might still have copies of the old keys—former owners, contractors, real estate agents.
You’ve lost your keys.
Lost keys are a security risk. Rekeying ensures that the missing keys are useless, even if found.
You want to use a single key for multiple locks.
If the locks are compatible, we can rekey multiple entry points (front door, side door, garage) to work with one key.
You’ve experienced a roommate or tenant change.
Whether it’s an apartment, rental home, or a shared living situation, it’s smart to rekey after someone moves out.
Your keys were stolen.
If theft is suspected, we highly recommend immediate rekeying to maintain your home's security.
Your current locks are still in good condition.
Rekeying works best when the lock hardware is still strong, functional, and reliable.
When Replacing Your Locks Is the Smarter Move
Sometimes, it’s not just about who has a copy of your key—it’s about the health and security of the lock itself. Full replacement is often the better choice if:
The locks are old, worn, or damaged.
Difficulty turning the key, sticking deadbolts, or visible wear are signs that new hardware is needed.
You want to upgrade security.
Switching to a high-security lock—like Grade 1 deadbolts, drill-resistant cylinders, or reinforced strike plates—often requires new installation.
You want to change the style or finish.
If you’re remodeling, painting, or updating curb appeal, new locks can modernize the look of your entryways.
The existing locks don’t match or aren’t compatible.
In some cases, older locks can’t be rekeyed to match each other easily. Replacing ensures uniformity and convenience.
There’s been a break-in attempt.
If your door or frame was compromised, even if no entry was gained, it’s best to replace the locks entirely.
Still not sure? Here’s a quick side-by-side comparison to help you decide.
Rekeying | Replacing | |
Pros | More affordable, Fast service, Retains existing hardware, Great for key control | Full upgrade to stronger locks, New hardware warranties, Improve aesthetics or match remodels, Ideal after break-ins |
Cons | No physical upgrade to lock strength, Only possible if locks are in good condition | Higher cost, Takes more time for installation, May require door modifications |
Still Haven't Decided: Rekey or Replace?
When in doubt, let experience guide you. At City Lock and Key, we assess each situation individually. During a home visit, we’ll:
Inspect the current lock condition
Evaluate the age and type of the locks
Discuss your security goals
Offer honest, professional advice based on what’s best for your home
Whether you’re in a single-family home in Niagara Falls, a downtown Buffalo apartment, or a rental in Western NY, we’re here to help you choose the most cost-effective, secure solution.
Our Rekeying and Lock Replacement Services Cover:
Homes
Apartments
Condos
Rental properties
Interior rooms (bedrooms, home offices)
We bring the right tools, replacement parts, and keys right to your doorstep. Many services can be completed the same day, and our work is always backed by craftsmanship and professionalism.
Why Homeowners in Niagara Falls, Buffalo, and WNY Trust City Lock and Key
We know you have options when it comes to locksmiths. That’s why we focus on what truly matters:
Fast Response Times: We’re local and know the area well.
Transparent Pricing: No hidden fees, no unnecessary upsells.
Respect for Your Home: We work cleanly, efficiently, and with great care.
Security-Focused Solutions: We prioritize your long-term safety, not just quick fixes.
Our goal is to earn your trust—and your call—anytime you need locksmith services in Niagara Falls, Buffalo, or anywhere in Western New York.
📞 Call 716-344-7800 for expert locksmith services in Niagara Falls, Buffalo, and WNY.
Let’s make sure your home stays safe, secure, and worry-free.
