Every day, locksmiths step into homes and apartments across the country and see the same avoidable security risks. These “red flags” often look harmless on the surface, but they leave homes far more vulnerable to break-ins, lockouts, and costly damage.

This guide breaks down the most common issues locksmiths notice, why they matter, and how to fix them to keep your home safe and secure.

Why Home Security Red Flags Matter

Small weaknesses in your home’s doors, locks, or access habits can create major security gaps.

“Most break-ins we see don’t involve advanced tools. They happen because of simple vulnerabilities, loose locks, weak deadbolts, or doors that never fully latch. Fixing these basics can dramatically improve your security.” - KeyMe Locksmiths

1. Old or Worn Locks

Locks wear down over time. Internal springs weaken, pins misalign, and cylinders loosen.

Why It’s a Red Flag

• Keys get harder to turn

• Locks become easier to pick or bump

• More likely to jam or break entirely

How to Fix It

• Rekey or replace aging locks

• Upgrade to modern deadbolts or smart locks

Explore residential lock repair: https://key.me/locksmiths 

2. Missing or Weak Deadbolts

Many homes rely only on a spring latch lock, the same type used on interior doors.

Why It’s a Red Flag

Spring latch locks can be forced open with a credit card or moderate pressure.

How Locksmiths Fix It

• Install a grade-1 or grade-2 deadbolt

• Reinforce the strike plate and frame

Learn more about deadbolt installation: https://key.me/locksmith-repair-install 

3. Doors That Don’t Fully Close or Latch

Even the best lock can’t secure a misaligned door.

Why It’s a Red Flag

• The latch doesn’t catch

• Weather stripping or shifting frames prevent the door from closing

• Break-ins become easier because the lock isn’t fully engaged

KeyMe Expert Tip
“We often see doors that ‘almost’ close. Almost isn’t secure. A lock needs full alignment to protect you.”

Fixes

• Adjust hinges

• Realign strike plates

• Repair warping or swelling frames

4. Visible Key Copies in Predictable Places

Fake rocks, outdoor magnets, or keys under mats are common—but predictable.

Why It’s a Red Flag

Burglars check all the classic hiding spots first.

Better Options

• Give spare keys to trusted neighbors

• Use a smart lock with keypad access

• Keep duplicate keys in a secure indoor location

Copy a spare key at a KeyMe kiosk: https://key.me/kiosks 

5. All Locks Use the Same Key

Convenient? Yes. Secure? Not always.

Why It’s a Red Flag

If one key is lost or stolen, every exterior door becomes vulnerable.

Fixes

• Rekey locks into separate key systems

• Or upgrade to a master key system for balanced convenience and control
  

Learn about rekeying: https://key.me/locksmiths 

6. Low-Quality or Builder-Grade Locks

Many new homes come with contractor-grade locks that offer minimal resistance to forced entry.

Why It’s a Red Flag

• Easy to pick

• Thin metal parts

• Weak strike plates that pull out under pressure
  

Better Options

• Grade-1 or grade-2 deadbolts

• High-security locks with stronger internal components

• Smart locks designed for exterior use

Explore high-security lock options: https://key.me/commercial-office-spaces 

7. Broken or Loose Door Hardware

Loose doorknobs, wiggling cylinders, and cracked strike plates are more than annoyances.

Why It’s a Red Flag

They reduce the lock's structural strength and make forced entry easier.

Fixes

• Tighten hardware

• Replace worn screws with longer security screws

• Replace damaged knobs or levers

8. Windows Near Entry Doors Without Reinforcement

Doors with nearby windows look great, but can create a security gap.

Why It’s a Red Flag

A burglar can break the glass and reach inside to unlock the door.

Fixes

• Add a double-cylinder deadbolt (key on both sides)

• Install reinforced or safety glass

• Add security film

Get professional recommendations: https://key.me/locksmiths 

9. No Spare Key or Backup Access

Surprisingly, many lockouts happen because homeowners have zero backup keys.

Why It’s a Red Flag

One lost key = emergency lockout, expensive urgent service, or a risky attempt at DIY entry.

Fixes

• Create duplicates

• Store securely indoors

• Upgrade to keypad or smart lock access

Find a KeyMe kiosk to make a spare: https://key.me/kiosks 

10. Ignoring Signs of Tampering

Scratches, bent latches, or loose cylinders can indicate attempted entry.

Why It’s a Red Flag

These small signs often mean someone tried (or succeeded) in manipulating the lock.

What to Do

• Replace or rekey immediately

• Upgrade to a stronger lock

• Consider a home security assessment

When to Call a Locksmith

If you see any of these red flags, a locksmith can:

• Inspect and repair worn locks

• Rekey locks for improved security

• Install deadbolts or high-security locks

• Fix alignment issues

• Install smart lock systems

• Provide spare keys or emergency access

Call KeyMe Locksmiths 24/7: 855-343-5776
Find a nearby KeyMe kiosk: https://key.me/kiosks 

Final Thoughts: Small Fixes Make a Big Difference

Many home security risks are easy to miss, but just as easy to fix. Addressing these common red flags is one of the simplest ways to protect your home, your family, and your peace of mind.