Commercial Lock Change After Tenant Turnover: What Every South Jersey Business Owner Should Do

Tenant turnover happens. Someone moves out of your Marlton strip mall suite, your Haddonfield office, or your Pennsauken warehouse unit — and suddenly you’re sitting there wondering: how many copies of that key are floating around out there? If the honest answer is “I have no idea,” then a Commercial Lock Change isn’t just a good idea. It’s the only responsible move. I’m Ben, and I’ve been doing this since 1995. I’ve seen every variation of this story, and it almost never ends well when a landlord skips this step.

Why Tenant Turnover Is a Security Blind Spot

Think about everything that happened during that tenancy. Employees came and went. A manager probably had a key. Maybe a cleaning crew did too. Possibly a vendor. Each of those people could have had a copy made — legally, without your knowledge — at any hardware store near the Cherry Hill Mall or the Moorestown Mall. You have zero way of knowing.

And the new tenant? They’re trusting you. They’re moving their inventory, their equipment, their livelihood into that space. Handing them the same key the previous tenant returned — without verifying it’s the only copy — is a liability you really don’t want. In South Jersey’s competitive commercial real estate market, protecting your tenants is protecting your reputation.

“I’ve rekeyed commercial properties in Cherry Hill, NJ where the previous tenant had nine copies of the key out in the world and didn’t even realize it. Nine. One was at a former employee’s house in Pennsauken. Think about that.”

— Ben, Licensed Locksmith since 1995

Commercial Lock Change vs. Commercial Rekey: Which One Do You Actually Need?

This is the question I get most often, and the answer depends on the condition of your hardware. Here’s a quick breakdown:

• Commercial rekey (commercial lock rekey): The lock body stays in place; we replace the internal pins so that all old keys stop working. Faster, more affordable — typically runs less than a full hardware swap. This works well when the locks are in solid condition and you’re just cutting off access from the previous tenant.
• Full commercial lock change: We remove and replace the entire lock hardware. Best when the locks are worn, damaged, builder-grade, or simply outdated. This also gives you the opportunity to upgrade to higher-security cylinders or a master key system that simplifies access across multiple units without sacrificing control.
• Access control upgrade: Skip physical keys entirely and move to keypad, fob, or smartphone entry. Ideal for multi-tenant buildings or high-traffic offices. We cover this in detail in our guide on why your business needs modern access control.

For most standard tenant turnovers in Cherry Hill, NJ and surrounding areas like Haddonfield, Moorestown, and Marlton, a commercial lock rekey is the smart, cost-effective solution — assuming the hardware is in decent shape. Costs typically range from around $75–$150 per lock for a rekey, while a full hardware replacement varies based on lock grade and quantity. We’ll give you a straight answer on pricing when we assess the job — no surprises.

Not sure which direction to go? Read our breakdown on commercial lock repair vs. replacement — it’ll help you make a confident call before we even arrive.

What a Commercial Lock Change Service Actually Looks Like

When we show up to a commercial property in Cherry Hill, NJ or anywhere across NJ after a tenant vacates, here’s how we work through it:

1. Audit every entry point. Front door, back door, suite doors, storage rooms — we check them all. A surprising number of landlords near the Route 70 corridor in Cherry Hill have secured the front and forgotten a rear service entrance entirely.
2. Assess hardware condition. We’re looking for wear, damage, misalignment, or anything that signals the door itself isn’t secure. If we spot office door repair problems you shouldn’t ignore, we’ll tell you straight.
3. Rekey or replace based on what we find. No upselling. If the hardware is fine, we rekey it. If it’s compromised, we recommend a replacement and explain exactly why.
4. Issue new keys and document everything. You know precisely how many keys exist and who has them. That’s the peace of mind your new tenant deserves — and frankly, so do you.

The Associated Locksmiths of America (ALOA) recommends rekeying or changing locks between every commercial tenancy as a baseline security standard — and after 30 years in this trade, I’d say that’s exactly right.

Don’t Wait Until Something Goes Wrong

Property managers in Marlton and Haddonfield call us after an incident. The ones in Moorestown and Pennsauken who call us before one — those are the stories that don’t make the police report. It’s that simple. Being proactive about your building’s security isn’t overcautious; it’s just good business.

Whether you manage a single commercial suite off Haddonfield Road in Cherry Hill or a multi-unit complex near the Pennsauken waterfront, the process is the same: don’t hand the next tenant an old key and hope for the best. Take 30 minutes, call a licensed business locksmith, and do it right.

Call Ben’s Lock & Key at (856) 685-0443 and we’ll schedule a walk-through at your convenience — often same-day or next-day for Cherry Hill, NJ and surrounding South Jersey locations. We make it easy, we make it fast, and we make it right the first time. That’s been the deal since 1995, and it’s not changing anytime soon.