Door Security: How to Prevent Break-Ins [Advanced Guide]

Why Door Security Is Key to Home Safety

Published: 30-Nov-2024

I think we can all agree to this – the door is where it all begins.

Think about it — your door is the first barrier between you and the outside world. It’s what stands between your family and someone who might want to break in.

So, here’s a question: How secure is your front door?

If you’ve never thought about it, don’t worry — you’re not alone. A lot of people assume that as long as the door locks, it’s doing its job.

But, the truth is, most break-ins happen right through the front or back door.

Why?

Because many doors, even locked ones, are surprisingly easy to kick in, pry open, or bypass if they’re not reinforced properly.

Here’s the thing: door security isn’t just about having a strong lock (though that’s part of it). Or having a smart lock (which I also recommend).

It’s about the entire system — the door material, the frame, the hinges, the strike plate, and yes, even the lighting outside your door.

When all of these pieces work together, your door becomes a serious obstacle for anyone trying to get in.

We get something that we can call a security door.

Do you want to know how to upgrade your door security?

3,2,1… let’s go!

First, Ask Yourself – Is It Secure Enough?

So, let’s take a closer look at your current door.

You can’t fix what you don’t know is broken, right?

Grab a notepad — or just make a mental checklist — and go through these steps to figure out where your door stands in terms of security.

Step 1: Check the Door Material

First, what’s your door made of?

If it’s a hollow-core door (like the ones commonly used for interiors), that’s a big red flag.

Hollow-core doors are light and easy to kick through—they’re not meant for exterior use.

Solid wood, steel, or fiberglass are much better choices for security. Take a second to knock on the door; if it sounds hollow, it might be time for an upgrade.

Step 2: Inspect the Door Frame

The frame is just as important as the door itself. A strong door won’t do much good if the frame is weak or poorly secured.

Check for cracks, warping, or loose areas around the edges where the frame meets the wall. If your frame feels wobbly or looks damaged, it’s an easy target for a forced entry.

Step 3: Look at the Locks

How many locks does your door have, and what kind are they?

If you’re relying on just a standard knob lock, you’re leaving your door vulnerable. A high-quality deadbolt is essential, and ideally, you’ll want one that’s ANSI Grade 1 or Grade 2.

Bonus points if you’ve got a reinforced strike plate (we’ll talk more about that later).

Step 4: Examine the Hinges

Hinges are often overlooked, but they’re a critical part of door security. Are your hinges on the inside of the door or the outside?

If they’re on the outside, someone could remove the hinge pins and take the door right off.

Look for hinges that are strong and secure, preferably with non-removable pins.

Step 5: Test the Door’s Fit

Finally, how does your door fit within the frame?

If there are large gaps around the edges, that’s an opportunity for someone to pry the door open with a crowbar.

A properly secured door should sit snugly in the frame with minimal gaps—just enough to open and close smoothly.

Upgrade to a Stronger Door Material

Let’s face it: not all doors are built to withstand a determined intruder.

If your current door isn’t up to the task, upgrading to a stronger material is one of the best steps you can take to improve your home’s security.

So, how do you choose the right material?

I wrote a blog post about the anatomy of a security door, which contains a lot of details about the materials.

Let’s break down the most common options and their strengths.

Solid Wood Doors

Solid wood doors are a classic choice for a reason — they’re sturdy, heavy, and can provide decent security.

A high-quality solid wood door, especially one made from hardwoods like oak or mahogany, can withstand a good amount of force. However, they’re not invincible.

• Pros: Durable, aesthetically pleasing, and naturally insulating.
• Cons: Prone to warping or splitting over time, especially in extreme weather.

Now, let’s talk about the real deal.

Reinforced Steel Doors

When it comes to sheer strength, steel doors are hard to beat. These doors are built to resist kicking, prying, and even basic hand tools, making them a fantastic choice for front doors.

Many steel doors also come with internal reinforcements and insulated cores, so you don’t have to sacrifice comfort for security.

• Pros: Exceptional impact resistance, long-lasting, and often reinforced.
• Cons: Can dent with significant force and may rust if not properly maintained.

Fiberglass Doors

If you want a balance of style, durability, and low maintenance, fiberglass doors are a great option.

They can mimic the look of wood while offering better resistance to weather and wear. While not as strong as steel, they’re still a solid choice for moderate security needs.

• Pros: Lightweight, weather-resistant, and energy-efficient.
• Cons: Less impact-resistant than steel; mid-range security.

My recommendation?

If you’re prioritizing maximum security, go with a steel door. For those who want a balance between aesthetics and strength, consider a reinforced wood door with metal reinforcements. 

And if you’re in a milder climate or want something stylish with moderate security, a fiberglass door can be a smart choice.

Reinforce the Door Frame

A strong door is only as good as the frame that holds it.

Think about it — when someone tries to kick in a door, it’s usually the frame that gives way first, not the door itself.

That’s why reinforcing your door frame is a crucial step in preventing break-ins.

Why the Frame Matters

Most standard door frames are made of wood, which can splinter or crack under pressure.

A solid steel door with a weak frame is like having an armored car with a plastic chassis — it just doesn’t work.

Reinforcing the frame ensures that it can handle the force of an attempted break-in, whether it’s a crowbar, a shoulder, or even a battering ram.

How to Reinforce Your Frame

Here are some tips for you:

Tip #1 - Upgrade to a Reinforced Steel Frame

A reinforced steel frame is one of the best upgrades you can make. Steel frames are much tougher than wood and resist warping over time. 

They’re designed to anchor the door more securely to the walls, distributing any force applied to the door across the structure instead of letting it focus on one weak point.

Tip #2 - Install a Strike Plate Reinforcer

The strike plate is where the lock’s deadbolt enters the frame. A standard strike plate is often held in place with short screws, which can easily be ripped out. 

Replace it with a reinforced strike plate and secure it with 3-inch screws that anchor into the wall studs. This makes it much harder for an intruder to kick in the door.

Tip #3 - Use Door Frame Reinforcement Kits

If a full steel frame replacement isn’t in the cards, a frame reinforcement kit is a more affordable option. 

These kits usually include steel plates that fit over the door jamb and reinforce the strike area. They’re easy to install and provide a significant boost to your door’s strength.

Tip #4 - Add Metal Door Jamb Armor

Another great option is metal door jamb armor, which wraps around the door frame to protect it from splitting or cracking under force. 

These reinforcements are designed to absorb and distribute impact, preventing break-ins while keeping your frame intact.

Tip #5 - Don’t Forget About the Hinges!

If you’re reinforcing the frame, don’t forget about the hinges! Use security hinge screws that are long enough to reach the wall studs, just like with the strike plate. 

If your door swings outward, consider using non-removable hinge pins to prevent someone from popping the door off its hinges.

By reinforcing the frame, you’re turning a weak point into one of the strongest parts of your door system.

It’s a simple but highly effective way to keep intruders out and your home secure.

Install a Deadbolt Lock (and Choose the Right One)

A sturdy door and reinforced frame are great, but they won’t do much good without a high-quality deadbolt lock.

Deadbolts are the heart of door security, and choosing the right one can make all the difference when it comes to stopping a break-in attempt.

Why Deadbolts Matter

Unlike a standard lock, which only secures the door handle, a deadbolt extends deep into the door frame, creating a much stronger barrier against forced entry.

The key is to pick a deadbolt that’s designed for security — not just convenience.

Understanding Lock Grades

Locks are rated by the American National Standards Institute (ANSI), which tests them for strength and durability. Here’s a quick breakdown of the grades:

• Grade 1: The highest level of residential security. These deadbolts are tested to withstand 250,000 cycles, 10 strikes of 75 pounds of force, and additional tests for impact resistance. This is what you want for maximum security.
  
• Grade 2: Mid-level security, still suitable for most homes. They can withstand around 150,000 cycles and some forced entry attempts, but they’re not as robust as Grade 1.
  
• Grade 3: Basic security. These are usually the cheapest and least secure option. They meet minimum standards but are easier to bypass.

For your front door, always aim for Grade 1 deadbolts.

They’re more expensive, but worth every penny for the added protection.

However, sometimes you can use Grade 2 deadbolts, like this one, in case you want to increase the security level of some internal door.

Key Features to Look For

Here is the list of key features:

1. Solid Metal Construction
   Look for deadbolts made from hardened steel or brass. Avoid cheap materials like lightweight alloys, which can easily be compromised.
   
2. Anti-Pick and Anti-Bump Protection
   A good deadbolt will have built-in features to resist lock-picking and bumping (a common technique used by intruders).
   
3. Long Throw Bolts
   The “throw” is the part of the deadbolt that extends into the frame. Aim for a throw that’s at least 1 inch long—it’s much harder to force out of the frame.
   
4. Reinforced Strike Plate
   The deadbolt’s strength depends on its connection to the frame. Choose a lock that comes with a reinforced strike plate and secure it with long screws that reach the wall studs.

Installation Tips

Installing a deadbolt is a relatively simple DIY project if your door already has a pre-drilled hole.

If not, you might want to call in a pro to make sure the placement and alignment are spot-on.

Related blog post - Professional Installation vs. DIY Options 

When installing, take extra care to ensure:

• The deadbolt aligns perfectly with the strike plate.
• The strike plate is secured with 3-inch screws for maximum strength.
• You test the lock multiple times to ensure smooth operation.

Pro Tip:

For even better security, consider pairing your deadbolt with a smart lock add-on.

This gives you remote access and additional features like activity logs without sacrificing the physical strength of a traditional deadbolt.

Add a Strike Plate Reinforcer

We’ve already mentioned the strike plate a couple of times, and for good reason — it’s one of the most critical parts of your door’s security setup.

If you’re not familiar, the strike plate is the metal plate attached to your door frame where the deadbolt locks into place.

While it might seem like a small detail, it’s actually a major factor in how well your door can resist a kick-in attempt.

Why Reinforcing the Strike Plate Matters

Most standard strike plates are held in place with short screws that barely penetrate the door frame.

If someone kicks the door, the screws are likely to rip right out, leaving your frame shattered and the door swinging open.

A reinforced strike plate changes the game by adding extra strength where it’s needed most.

Reinforced strike plates are typically made of thicker steel and come with longer screws (usually 3 inches or more) that anchor deep into the wall studs behind the frame.

This ensures that the force of a kick or impact is distributed across the studs instead of just the frame, making it much harder to break through.

How to Install a Strike Plate Reinforcer

Adding a strike plate reinforcer is one of the simplest yet most effective DIY upgrades you can make. Here’s how to do it:

1. Remove the Old Strike Plate
   • Unscrew the existing strike plate from the frame. You’ll likely find short screws holding it in place.
     
2. Position the New Reinforced Strike Plate
   • Align the new strike plate with the hole in the frame where the deadbolt locks in. Many reinforced plates are slightly larger than standard ones, so you may need to chisel out a small section of the frame to make it fit snugly.
     
3. Secure with Long Screws
   • Use 3-inch screws to attach the strike plate to the frame. Make sure the screws are angled slightly toward the wall studs for maximum anchoring strength.
     
4. Test the Deadbolt
   • Lock and unlock the door a few times to ensure the deadbolt slides smoothly into the strike plate. Adjust as needed to ensure a perfect fit.
     
5. Double Down on Reinforcement
   • For even more security, consider using a door reinforcement kit, which includes both a strike plate reinforcer and a door jamb shield. These kits provide extra protection by strengthening not just the strike plate area but the entire frame.

When It All Comes Together

A reinforced strike plate may seem like a small upgrade, but it’s a critical piece of the puzzle.

Paired with a high-quality deadbolt and a solid frame, it turns your door into a serious obstacle for anyone trying to break in.

It’s a quick, affordable fix that dramatically improves your home’s security—and it’s a no-brainer for anyone serious about keeping their home safe.

Consider a Door Security Bar or Brace

Sometimes, a little extra reinforcement goes a long way, and that’s exactly what a door security bar or brace offers.

These devices are affordable, easy to install, and provide a powerful second line of defense against forced entry.

Here is one that you can check on Amazon.

If someone tries to kick or shove your door open, a security bar or brace makes it almost impossible to budge.

How Does a Door Security Bar Work?

A door security bar is essentially a physical barrier that you wedge between the floor and the door handle.

The idea is simple: the bar absorbs and redirects the force of an attempted entry, preventing the door from opening inward.

Most security bars are adjustable, so they can fit different door heights, and they’re designed to work on a variety of surfaces, from hardwood to carpet.

For sliding doors, some bars are horizontal and act as a lock, preventing the sliding panel from moving. These are perfect for patio or glass doors, which are often more vulnerable to break-ins.

Door Braces: Built for Heavy Duty

A door brace is a more permanent option that mounts directly to the floor. Unlike a security bar, which is removable, a brace is anchored into the ground and locks into place whenever you need it.

These are designed to withstand extreme force, making them ideal for doors in high-risk areas.

The best part?

A brace doesn’t rely on the door’s handle or frame, so even if those parts fail, the brace will hold strong.

Installing a Security Bar or Brace

Adding one of these devices is as easy as it gets:

• For a Security Bar: Simply adjust the length of the bar to fit snugly between the floor and the door handle. Place the rubberized base on the floor for grip, and make sure the top end is firmly in contact with the handle. For sliding doors, just lay the bar horizontally in the track.
• For a Brace: Follow the manufacturer’s instructions to mount the base plate to the floor. Once installed, you can lock the brace into position anytime you want extra protection.

My Take?

If you’re looking for something quick and temporary, go with a security bar—it’s portable and easy to use.

But, if you want serious, heavy-duty protection, invest in a brace. Either way, these devices add a valuable layer of security that stops brute force attacks in their tracks.

Install a Smart Door Lock

A smart lock can take your door security to the next level by combining convenience with cutting-edge technology.

These locks let you control access to your home through smartphone apps, PIN codes, or even fingerprint recognition — no physical keys required.

I have a longer blog post about smart locks, so here are just a couple of hints.

With a smart lock, you can:

• Lock or unlock remotely from anywhere, perfect for letting in guests or double-checking when you’re away.
• Receive real-time alerts if someone tries to tamper with your lock or when someone enters your home.
• Grant temporary access codes to visitors or service providers, which you can revoke anytime.

Most models integrate seamlessly with smart home systems like Alexa or Google Assistant, adding voice control to the mix.

Installing one is straightforward, especially if you’re replacing an existing deadbolt.

It’s a modern upgrade that doesn’t just make life easier — it adds an extra layer of security.

Use a Door Viewer or Video Doorbell

Knowing who’s at your door before you open it is a simple but crucial security step.

A peephole viewer lets you see who’s outside without unlocking the door, but for a modern upgrade, consider a video doorbell.

With a video doorbell, you can:

• See and speak to visitors in real-time through your smartphone.
• Get motion alerts and recordings, even when you’re not home.
• Deter potential intruders with the visibility of the camera.

It’s an easy way to add convenience and security, giving you control over who gets access to your door.

Add a Door Chain or Latch for Extra Safety

A door chain or latch provides an extra layer of protection when you need to crack the door open to speak to someone.

These simple devices prevent the door from opening fully, giving you more control over interactions with strangers.

Choose a reinforced chain or a modern swing latch for better durability and security.

For example, this one.

While not a primary defense, they’re a great addition to other door reinforcements, especially for day-to-day peace of mind.

Protect Sliding Doors

Sliding doors can be one of the most vulnerable entry points in a home.

Their large glass panels and simple locking mechanisms make them an easy target for intruders.

But, with the right reinforcements, you can turn this potential weak spot into a secure barrier.

Here’s how:

1. Add a Security Bar or Rod

A security bar or track rod is one of the simplest and most effective ways to secure a sliding door.

These devices fit snugly into the track, preventing the door from sliding open, even if the built-in lock is bypassed.

Adjustable and easy to install, security bars are a great first line of defense.

2. Use Shatterproof Window Film

Sliding doors are all about glass, which can be a problem if an intruder decides to smash their way in.

Applying a layer of shatterproof film strengthens the glass, making it resistant to impact. Even if the glass cracks, the film holds it together, preventing easy access.

It’s an inexpensive upgrade that also adds a layer of safety for accidents.

3. Upgrade the Locking Mechanism

The standard lock that comes with most sliding doors isn’t built for security—it’s more of a latch than a real lock.

Consider adding an auxiliary lock, which reinforces the door’s locking point, or go high-tech with a smart lock designed for sliding doors.

These upgrades make it much harder to force the door open.

4. Secure the Door from Being Lifted Off the Track

Many sliding doors can be lifted off their tracks with enough force. To prevent this, install anti-lift devices, such as screws or brackets, at the top of the frame.

These stop the door from being removed, even if someone tries to force it.

5. Install Security Sensors or Cameras

For added peace of mind, place a motion sensor or security camera near the sliding door.

Motion sensors can trigger alarms or lights, while cameras serve as a visible deterrent and let you monitor activity near the door.

Speaking about surveillance…

Use Security Cameras Around the Entrance

Ever notice how just seeing a security camera can make you think twice?

That same logic works for burglars, too.

Security cameras are one of the best ways to deter intruders and keep an eye on what’s happening around your door — even when you’re not home.

Where Should You Place Them?

The key to making security cameras effective is strategic placement.

I created this website in order to help people decide where to place security cameras. The Safety Plan is dedicated to this problem.

For doors, you’ll want a camera positioned so it clearly captures anyone approaching.

My go-to advice?

Mount it above the door, angled downward. This gives you a clear view of faces while still capturing the area immediately in front of the door.

If you have a front porch, consider adding a second camera further out to get a wider view of the approach — like your driveway or walkway.

The combination of a close-up and a wide-angle shot gives you complete coverage.

What Features Should You Look For?

When choosing a camera, focus on these features:

• High resolution (1080p, 2K or higher) for clear footage.
• Night vision, so you don’t miss anything after dark.
• Motion detection with alerts to your phone—this lets you respond quickly if someone’s lingering at your door.
• Two-way audio if you want to communicate with visitors or deter intruders.

A good security camera isn’t just a tool for catching intruders — it’s a powerful deterrent.

When people see a camera, they’re much less likely to try anything. Plus, it gives you peace of mind knowing that you can always check in on your home, no matter where you are.

It’s like having an extra set of eyes watching your entrance 24/7.

Install Outdoor Lighting Near Your Door

Let me ask you this: would you feel comfortable sneaking up to a house if a bright light suddenly lit you up like it’s showtime?

Exactly.

Outdoor lighting is one of the simplest yet most effective ways to deter intruders. Burglars don’t want to be seen, and a well-lit entrance makes your home far less inviting to them.

Why Lighting Matters

Dark corners and shadows around your front or back doors give intruders cover.

Adding motion-activated lights ensures that anyone approaching your door is instantly visible — not just to you but to neighbors or security cameras, too.

This sudden burst of light can scare off someone with bad intentions before they even try the handle.

Where to Place Outdoor Lights

The trick is placing the lights strategically. Here’s what I recommend:

• Install one directly above or beside your main entrance to illuminate the area fully.
• Add lights to walkways or driveways leading up to your home to catch movement earlier.
• Don’t forget side or back doors, which are often targeted because they’re less visible.

For extra coverage, pair the lights with motion sensors that trigger when someone enters the area.

Most models allow you to adjust the sensitivity, so you’re not constantly lighting up for passing cars or small animals.

What Type of Lights Should You Use?

Choose LED floodlights for maximum brightness and energy efficiency. If you want something that blends better with your home’s style, consider dusk-to-dawn lights that automatically turn on at sunset and off at sunrise.

Solar-powered options are also great for saving on energy bills and avoiding complicated wiring.

Weatherproof Your Security: Protect Against Tampering

Ever think about what your locks and door components go through? They’re exposed to rain, snow, heat, and everything in between.

Over time, weather can weaken your locks, while tampering attempts can leave them vulnerable. That’s why weatherproofing your security isn’t just smart — it’s essential.

Protecting Against the Elements

Start by choosing weather-resistant locks or covers designed for outdoor use. Look for materials like stainless steel or locks with rust-proof coatings, which can handle the elements better than standard locks.

If you already have a good lock, adding a protective cover can shield it from rain and snow, keeping the mechanisms from seizing up.

For doors, check the frame and seals to ensure water isn’t getting in and weakening the surrounding material.

Adding a door sweep or weatherstripping not only keeps out drafts but also prevents water damage that could compromise the frame’s strength over time.

Guarding Against Tampering

Intruders aren’t just looking for weak locks — they’re looking for exposed ones, too. To prevent tampering:

• Use tamper-resistant screws on hinges and strike plates to make them harder to remove.
• Add lock shields or collars to prevent tools like pliers from gripping the lock.
• Consider anti-drill plates, especially for smart locks, to protect the internal mechanisms.

Think of weatherproofing as giving your security system a longer life. A lock that’s tough against rain and rust is also tough against intruders.

Combine that with tamper-proof upgrades, and you’ve got a door that’s ready to take on both Mother Nature and anyone with bad intentions.

Wrapping It Up

So there you have it — everything you need to know to make your doors as secure as they can be.

From upgrading your locks and reinforcing the frame to adding lighting and smart tech, it’s all about turning weak spots into strongholds.

Start with the basics: a solid door, a strong deadbolt, and a reinforced strike plate.

Then, add the extras like cameras, motion lights, and even a security bar for that extra layer of protection.

Every little upgrade adds up, and before you know it, you’ve got a door that’s not just keeping the weather out but making intruders think twice.

Home security doesn’t have to be complicated, but it should be effective — and now, you’ve got the tools to make it happen.