Sliding glass doors are a beautiful feature in any home. They let in plenty of natural light, give easy access to gardens or patios, and add a modern touch to your space. But here's the catch—they're also one of the most vulnerable entry points for burglars.
As a locksmith, I've lost count of how many times I've been called to a home after a break-in, only to find that the burglars came straight through the sliding door. If you have one in your home, don't panic there are plenty of ways to reinforce it and make sure it's no longer an easy target.
In this guide, I’ll walk you through exactly why sliding doors are a weak point and how to make them as secure as your front door.
The article is written with the intention of providing useful information to our customers and visitors. The content provided is for general information purposes only and is not intended to be a substitute for professional on premise advice by locksmith. You should not rely on the information provided in this article for making decisions. If you need help with a specific issue, please contact us for advice.
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Many homeowners focus on locking the front door before leaving the house but completely forget about the sliding door at the back. The problem is that burglars know this—and they know that most sliding doors can be broken into within seconds.
I once had a client who went on holiday for two weeks. They double-locked the front door, installed a camera, and even left the lights on a timer. But when they returned, their home had been ransacked. How? The burglars had simply lifted the sliding door off the track and walked right in. No forced entry, no alarms—just an open invitation.
The good news? You can easily reinforce your sliding door with a few smart upgrades. Here’s what you need to do:
If your sliding door still has the factory-installed latch, it’s time to replace it.
➡️ Bonus tip: Most locksmiths can recommend British Standard (BS3621) locks, which meet high-security standards in the UK.
A simple but highly effective trick: place a solid rod (like a metal bar or a wooden dowel) in the track of your sliding door.
Why does this work? Even if someone manages to unlock the door, they can’t slide it open because the rod physically blocks it.
Older sliding doors can easily be lifted out of the frame, but there’s an easy fix:
Since sliding doors have large glass panels, you also need to think about shatter protection.
Burglars hate well-lit areas. Installing motion-activated lights near your sliding door can scare off potential intruders.
For even better protection, consider a CCTV camera positioned near your sliding door. Many smart security cameras send real-time alerts to your phone if they detect movement.
If you’re already using smart home devices, why not integrate your sliding door into your security system?
You’d be surprised how often burglars don’t even need to break in—homeowners simply forget to lock the door.
A good habit: Before bed or leaving the house, double-check that it’s locked.
A dirty or damaged sliding door track can prevent your lock from engaging properly. Keep it clean, and replace any worn-out rollers to keep the door secure in its frame.
A basic sliding door alarm is an inexpensive way to boost security. These devices sound a loud siren if the door is forced open, scaring off intruders.
If you haven’t upgraded your sliding door’s security yet, now is the time.
Even small improvements—like adding a security bar or reinforcing the glass—can make a huge difference in preventing break-ins.
If you’re not sure where to start, our professional locksmith can assess your door and recommend the best security upgrades.
At Swift Locksmiths we offer:
✅ Free security assessments for your home
✅ Sliding door lock upgrades
✅ Custom security solutions to fit your needs
🔑 Contact us today to make your home safer!
That’s it! Now your sliding door can be just as secure as your front door. Don’t wait until it’s too late—take action now and keep your home protected. 🚪🔐