It seems like a good idea—stash a spare key somewhere outside just in case. But burglars are smarter (and faster) than most people think. In fact, they know exactly where to look. If you’re a homeowner or renter in Southern New Hampshire or the Seacoast NH area, this guide from a local area locksmith will help you avoid common security mistakes and protect your property. Here are 5 of the most common — and surprisingly risky — places people hide spare keys, plus safer alternatives to keep your home secure.
1. Under the Doormat
Classic, right? That’s the problem. It’s the first place a would-be intruder will check. Doormats offer zero concealment and are usually just a quick lift away from entry.
Don’t Do This. It’s predictable, and burglars know it.

2. Inside a Fake Rock

Fake rocks are better known now than they were in the ’90s—and they’re no longer fooling anyone. Most of them stick out like sore thumbs in landscaping.
Think you’re being clever? So does every thief who’s seen one before.
3. Under a Flower Pot
Pots are easy to lift and often placed conveniently near the door. Like the doormat, it’s a hiding spot that offers no real security.
Even if it’s “just temporary”, it’s not worth the risk.

4. On Top of the Door Frame

An old-school trick, especially for side or back doors. But it’s also easy for someone taller—or even just determined—to check and grab quickly.
If you can reach it, so can a stranger
5. Inside the Mailbox
It may seem hidden, but mailboxes are unsecured by design. Leaving a key inside or taped underneath invites trouble—and potential mail theft.
Plus, tampering with mailboxes can be a federal offense.

What Should You Do Instead?
Here are safer alternatives recommended by a trusted Southern NH locksmith:
- Give a spare to a trusted neighbor or nearby friend
- Use a smart lock with keypad access
- Install a secure lockbox hidden from plain view
- Rekey locks after major life changes (moving, breakups, etc.)
Final Word: Don’t Make It Easy
Burglars don’t need hours to search—just seconds. Leaving a key outside, even in a “clever” hiding place, could be the weakest link in your home’s security. Instead, invest in smart, professional solutions that keep your peace of mind intact.
Need Help Upgrading Your Locks?
If you’re located in Nottingham, Lee, Northwood, Raymond, Epping, Portsmouth, Dover, Rochester, or anywhere along Southern New Hampshire to the Seacoast, LockWorks offers fast, friendly, and professional mobile locksmith services. From lock rekeying and smart lock installation to cameras and deadbolt installations, We’re just a call away. Contact your Southern NH locksmith today.