A relationship ending is already stressful. Adding home security questions on top of it can feel overwhelming. But this is one situation where acting fast matters more than most people realize — and the decision is simpler than you might think.
Bowles Locksmith Service Louisville has handled hundreds of these calls from homeowners and renters across Louisville over more than 31 years in business. The pattern is consistent: people who act quickly feel safer. People who wait usually regret it.
Should I Change the Locks After a Breakup or Roommate Moves Out in Louisville?
Yes — and you should do it sooner than feels necessary. If someone had a key to your home and that relationship has ended, you have no reliable way to know whether they made a copy of that key, who else they may have given access to, or whether they’ll use it again. Most people assume their ex or former roommate “wouldn’t do that.” That assumption is what keeps locksmiths busy.
This applies whether you owned the home together, rented separately, or just handed someone a spare key for convenience. The key is out there. You didn’t get it back. That’s enough reason to act.
In Kentucky, landlord-tenant law adds another layer for renters. If you have a lease and your name is on it, you generally have the right to request a lock change when a co-tenant moves out — though you should check your specific lease language and consult your landlord before making changes to the property. Kentucky does not have a statewide statute that automatically requires landlords to rekey between tenants, so that coordination falls to you.
The practical answer: don’t wait for something to happen. Rekeying your locks is fast, affordable, and gives you immediate peace of mind.
Rekeying vs. Full Lock Replacement After a Split
These are two different services, and the right choice depends on your situation.
Rekeying changes the internal pin configuration of your existing lock so that the old key no longer works. A new key is cut to match the new configuration. The hardware stays on the door. This is the right call in most breakup or roommate situations — your locks are probably fine mechanically, and rekeying is faster than a full replacement.
Full lock replacement makes sense when the hardware itself is worn, damaged, or you want to upgrade to a higher-security option at the same time. The ANSI/BHMA grading system rates residential locks from Grade 1 (commercial-strength) down to Grade 3 (basic residential). If your current locks are older Grade 3 hardware and you’ve been meaning to upgrade, a split is a natural moment to do it right.
One thing worth knowing from experience: apartment doors in older Louisville neighborhoods — Germantown, Highlands, Clifton — often have interior cylinders that have been rekeyed multiple times already. The pins can get worn. When we open one of those locks and see heavy wear, a full replacement usually serves the homeowner better long-term. A qualified locksmith can assess that on the spot.
Don’t Forget These Other Entry Points
Front door locks get all the attention, but they’re rarely the only way into a home. Before you call it done, think through every point of entry that the former occupant had access to.
Back door. Side garage entry. Detached garage with a keyed lock. Storage unit on the property. Mailbox, if it uses a keyed lock they might have cared about. And if you have a smart lock or keypad system, change the access codes immediately — not just the physical key situation. App-connected locks often store entry logs, so you can also check whether anyone has entered recently.
If you shared a garage door opener with your ex or former roommate, reprogram it. Most modern openers have a “delete all” function in the settings panel that wipes all paired remotes. Your opener’s manual will walk you through it, or a qualified technician can do it quickly.
What About Shared Smart Locks or Digital Access?
Smart locks have become common in Louisville rentals and newer construction. They’re convenient right up until a relationship ends — then they become a problem.
Bluetooth and Wi-Fi connected locks (August, Schlage Encode, Yale Access) tie access to user accounts. If your former partner is still in the app as an authorized user, they may still have digital entry. Removing them from the app is step one, but it’s not always enough — some devices cache credentials locally. The safest move is to factory reset the lock itself, then set it up fresh with only your credentials.
If you’re unsure how your smart lock handles access removal, the ALOA Security Professionals Association publishes consumer guidance on residential security that can help you understand your specific device’s vulnerabilities. Or call a professional who works with these systems regularly.
How Long Does a Rekey Actually Take?
For a standard residential property with two or three keyed entry points, a rekey typically takes under an hour on-site. A locksmith will match the new key cuts across all cylinders so one key works every door — that’s called a master key setup for residential use, and it’s worth asking for specifically. Nothing is more annoying than sorting through three keys just to get into your own house.
Bowles Locksmith Service Louisville offers mobile service, so a technician comes to your home rather than you having to haul hardware anywhere. The work gets done at your door, and you walk away with new keys the same visit.
A Few Things Louisville Renters Should Know
If you’re renting and your roommate’s name is also on the lease, the legal situation is more nuanced. Technically, a co-tenant may have a legal right to access the property under the lease agreement, even after the relationship deteriorates. Changing the locks unilaterally in that scenario could expose you to legal issues depending on the circumstances.
The cleaner path: work with your landlord to formalize the roommate’s move-out, have them removed from the lease, and then request or arrange a rekey. Louisville’s Jefferson County court system handles eviction and tenant disputes if the situation escalates — but most roommate splits don’t reach that point when handled promptly and in writing.
If you owned the home together and there’s a legal dispute involved, consult a Kentucky attorney before changing locks. That’s beyond a locksmith’s scope, and the right sequence of steps matters legally.
Security After a Breakup: What Actually Works
A rekey handles the immediate key risk. But if you want a fuller picture of your home’s security posture, a residential security assessment is worth considering. A qualified locksmith can walk your property, check door frame integrity (a weak frame matters more than a strong lock), evaluate window entry points, and flag anything obvious.
According to the Bureau of Justice Statistics, most residential burglaries happen through a door. That doesn’t mean you need to panic — it means your door hardware, frame condition, and strike plate installation matter. A single long-screw strike plate upgrade can make a meaningful difference on an otherwise solid door.
Check out what our Louisville clients say about the work we’ve done — the pattern you’ll see in those reviews is people who called, got it handled quickly, and felt immediately better.
Ready to Get This Done?
If you’re ready to move forward, the process is straightforward. Call (502) 935-2614 to schedule a rekey or discuss what your specific situation calls for. You can also get in touch through the website to describe your setup in advance.
Visit our Louisville office at 5320 Valley Station Rd, Louisville, KY 40272, or let us come to you. In 2026, there’s no reason to feel uncertain about who has access to your home. One call fixes that.