Top 10 Mistakes Homeowners Make with Their Locks

Preventive Tips to Keep Your Property Secure

Most homeowners assume that once a lock is installed, it’s “job done.” But lock security isn’t a set-it-and-forget-it affair. From wear-and-tear to usage habits, even the best lock can be compromised through simple mistakes. Here are 10 common lock-related missteps—and how to avoid them.

1. Not Changing Locks After Moving In

Previous owners, contractors, or even neighbors may still have key copies. Always rekey or replace locks when moving into a new home.

2. Using Standard Low-Security Locks

Many basic locks—especially Grade 3—can be easily bumped or picked. Upgrade to ANSI Grade 1 hardware or high-security cylinders.

3. Leaving Spare Keys in Obvious Spots

That fake rock or under-doormat trick isn’t fooling anyone. Burglars know where to look. Use a lockbox or trusted neighbor instead.

4. Ignoring Lock Maintenance

Locks need occasional lubrication and inspection. Rust, dirt buildup, and worn parts can compromise performance over time.

5. Relying Solely on Smart Locks Without Backup

If the batteries die or the app crashes, you could be locked out. Always have a physical key or manual override available.

6. Installing Locks Incorrectly

DIY installations sometimes skip crucial steps—misalignment, loose screws, or unsecured strike plates can weaken door security.

7. Neglecting Back and Side Doors

Focusing only on the front door leaves other entry points vulnerable. All exterior doors should have equally strong locking systems.

8. Not Rekeying After Lost Keys

If you misplace your keys—even temporarily—you risk unauthorized access. Rekeying is a fast and affordable way to restore control.

9. Sharing Keys Without Oversight

Loaning your key to cleaners, contractors, or guests should come with accountability. Use temporary access systems or smart locks with codes.

10. Skipping Security Audits

Your locks are only part of your security setup. Professional audits can reveal gaps in entry points, hardware integrity, and accessibility.