Working as a locksmith across Los Angeles means I get to see inside homes in every kind of neighborhood — from historic properties in Hollywood, modern apartments in Downtown LA, hillside homes in Silver Lake, large family houses in the Valley, quiet streets in Westchester, and beachside homes in Santa Monica and Venice. And no matter where I go, I see the same security mistakes repeated over and over again.

Some of these mistakes seem small, but they create gaps that burglars take advantage of. Others are major risks disguised as “normal,” especially in older Los Angeles homes or rental properties. Most importantly, every one of these mistakes is preventable with a little awareness and the right locksmith guidance.

As we move through December — one of the busiest times of year for break-ins, lost keys, and security issues — I want to share the most common home security mistakes I see throughout Los Angeles, and how to fix them before they become bigger problems.

1. Relying on Old or Original Locks That Are Way Past Their Prime

One of the biggest mistakes I see across Los Angeles — whether in Sherman Oaks, Pico-Union, Highland Park, North Hollywood, or Marina del Rey — is homeowners relying on old, worn, or flimsy locks.

Many LA homes, especially older ones, still use:

Original locks installed 15–25 years ago
Builder-grade locks that were cheap from day one
Locks with worn internal components
Latches that barely close
Keys that stick or grind

If your lock hasn’t been upgraded in over a decade — or ever — it’s not protecting your home the way you think.

Strong modern deadbolts and reinforced hardware make a huge difference in preventing break-ins. And December is the time to upgrade, because colder weather exposes weak mechanisms and makes doors harder to secure.

2. Forgetting to Strengthen the Door Frame — The Most Overlooked Weak Point

When I visit homes all over LA — from Glendale to El Segundo, Echo Park to Torrance, Brentwood to Valley Village — homeowners often assume the lock is the problem.

But more often than not, it’s the door frame.

A lock is only as strong as the wood it’s installed into. A powerful kick can break a weak frame even if the deadbolt itself is strong.

The most common problems I see include:

Short screws in the strike plate
Weak, shallow door jambs
Cracked or warped frames
Soft wood that splits easily
Cheap plates that bend under pressure

This is one of the main reasons break-ins happen in neighborhoods like West Adams, North Hills, Hawthorne, and Boyle Heights. The lock doesn’t fail — the frame does.

Strengthening the door frame with long screws and reinforced hardware is one of the best security steps you can take.

3. Using Only the Door Knob Lock Without Engaging a Deadbolt

Here’s a mistake I see all over Los Angeles — from Koreatown apartments to West Hollywood townhomes to Santa Clarita tract homes:

People lock only the handle lock and forget the deadbolt.

A knob lock alone is not enough. It can be bypassed quickly, and in most cases, it can be forced open with far less effort than homeowners realize.

A deadbolt provides:

Depth
Strength
Harder break-in resistance
True locking power

If your home has no deadbolt on a main entry, or if you’re not using it consistently, this is a major security gap — especially in December when break-ins spike.

4. Leaving Side or Rear Doors Neglected

Burglars rarely go through the front door unless it’s weak or unlocked. They head straight to:

Side entrances
Rear sliding doors
Garage access doors
Hidden alley-facing doors
Basement or lower-level entries

This is especially true in areas like Van Nuys, Mid-City, Hollywood, and East LA, where narrow passages between homes give cover to intruders.

Sadly, these doors often have the:

Cheapest locks
Weakest frames
Oldest hardware
Minimal reinforcement

I see this mistake constantly, even in high-value homes in Pacific Palisades, Encino, Beverly Grove, and Marina del Rey.

Your strongest locks should go on every exterior door, not just the front.

5. Not Rekeying After Moving In, Renting, or Giving Out Copies

This mistake happens in every age group, every neighborhood, and every income level across Los Angeles.

People forget to rekey after:

Moving into a new house
Changing tenants
Ending a relationship
Losing a key
Hiring contractors
Hosting long-term guests
Lending keys to friends or neighbors

I’ve rekeyed homes in Highland Park, Sherman Oaks, West LA, and Silver Lake where five or more old keys still worked — keys the homeowner had no idea about.

If you don’t know exactly who has keys to your home right now, it’s time to rekey — especially before the new year.

6. Overlooking Sliding Glass Doors — One of LA’s Biggest Risks

Sliding doors are everywhere in Los Angeles homes — from Venice beach apartments to Valley Village condos to suburban homes in Westchester and Lakewood.

The problem?

Sliding doors are one of the weakest entry points burglars target.

Most sliding door latches can be:

Forced open
Lifted off the track
Popped with basic tools

Without proper reinforcement, they’re not secure at all.

I see this mistake constantly when I service homes across the city, and it’s one of the first areas I strengthen during a home security inspection.

7. Assuming “Safe Neighborhoods” Don’t Need Stronger Locks

I hear this often in places like:

Sherman Oaks
Pasadena
Playa Vista
Woodland Hills
Marina del Rey
Manhattan Beach
Burbank

But burglars don’t choose homes based on neighborhood reputation — they choose based on opportunity.

I’ve responded to break-ins in some of the most peaceful and expensive areas of Los Angeles, simply because the home had:

Old locks
Weak frames
Sliding doors with no reinforcement
Rear entrances left unsecured
Predictable access patterns

Good neighborhoods deserve good protection too.

8. Leaving Spare Keys Outside (One of the Worst Mistakes)

I’ve found spare keys under:

Mats
Rocks
Planters
Lights
Fake rocks
Barbecues
Mailboxes

Burglars check these places first.

Leaving spare keys outside is a huge security risk — whether you live in Santa Monica, Glendale, Chatsworth, or Inglewood.

Use a lockbox if you must — but never leave loose keys accessible.

9. Not Upgrading Locks When Doors Start Showing Wear

Doors age with time. I see this in older homes across Los Angeles — especially in:

Echo Park
Highland Park
Angelino Heights
West Adams
Mid City
North Hollywood

Older doors begin to:

Warp
Crack
Become misaligned
Rub against frames
Create gaps

A misaligned door doesn’t just cause inconvenience — it weakens your security and makes locks fail faster.

Upgrading locks without checking door condition is a common mistake I address year-round.

10. Not Calling a Locksmith Until Something Goes Wrong

This is one of the biggest mistakes homeowners make everywhere from Torrance to Encino to Los Feliz:

Waiting until there’s a break-in, stuck lock, or emergency.

By the time I’m called, the damage is done — doors are broken, locks are destroyed, and repairs cost more than preventative upgrades.

Break-in prevention is always more affordable and less stressful than break-in recovery.

📞 Professional Call-To-Action

If you want to fix these security mistakes and protect your Los Angeles home before the year ends, I’m here to help.

At Moe Locksmith Services, I provide professional, reliable, and fast residential locksmith services across the entire Los Angeles area — from the Westside to the Valley, the Eastside, the South Bay, and everywhere in between.

🔐 Lock upgrades
🔐 Rekeying
🔐 Door and frame reinforcement
🔐 Smart lock installation
🔐 Full home security assessments
🔐 Emergency support

📞 Call me today: (424) 622-5625
📧 Email: moelocksmith@gmail.com
🌐 Website: moelocksmith.com

Let me secure your home the right way, with expertise, honesty, and a complete understanding of Los Angeles neighborhoods.