If you own a duplex in Hammond, a handful of houses in Gary, or a small apartment building anywhere in Lake County, your rental property locks are one of the cheapest and most overlooked parts of protecting your investment. A tenant moves out, the keys get handed back, and it is tempting to assume everything is fine. The problem is that you never really know how many copies of that key are floating around.
Why Rental Property Locks Deserve More Attention
Every tenancy adds key copies you cannot track. Tenants make spares for partners, dog walkers, and relatives, and those copies rarely all come back at move-out. A returned key ring tells you nothing about the copies made at a hardware store two years ago. Treating the locks as a routine turnover item, just like painting and cleaning, closes that gap.
Between Tenants: Rekey Every Time
The simplest habit a Northwest Indiana landlord can build is rekeying between every tenancy. Rekeying keeps the existing hardware on the door but changes the internal pins so old keys no longer work. It is faster and less wasteful than swapping out hardware that is still in good shape, and a mobile locksmith can handle a whole unit in a single visit. Full replacement makes sense when the hardware itself is worn, damaged, or outdated.
What Indiana Law Says (and Doesn’t Say)
Indiana’s landlord-tenant statutes do not spell out a specific requirement to change or rekey locks between tenants the way some states do. That means the responsibility largely comes down to your lease and your own standards. Landlords do have a general duty to deliver a rental in a safe, habitable condition, and working, secure locks are a reasonable part of that. This is general information, not legal advice, so check your lease terms or talk to an attorney about your specific situation.
Mid-Lease Situations That Call for a Lock Change
Some events should trigger a call to a locksmith even in the middle of a lease: a tenant reports a lost or stolen key, a break-in or attempted break-in occurs, a roommate or ex-partner moves out on bad terms, or a contractor who held a key finishes a project. In these cases, act quickly and coordinate with your tenant so they have new keys the same day.
Keep a Simple Key Policy in Your Lease
A short key clause saves headaches later. Spell out how many keys are issued, whether tenants may copy them, what happens if keys are lost, and that all keys must be returned at move-out. Pairing that policy with routine rekeying gives you a clean, documented chain of who can open the door, which matters from Whiting down to Crown Point if a dispute ever comes up.
If you manage rentals anywhere in Northwest Indiana, Jacob’s Lock and Key can rekey units between tenants, handle mid-lease lock changes, and set up master key systems for multi-unit buildings. We are a licensed mobile locksmith serving Gary, Hammond, Merrillville, Crown Point, and the surrounding communities, open 7 AM to 11 PM, seven days a week. Call Jacob at (219) 342-5595 to get it scheduled.
Last updated: 07/27/2026