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How to secure your sliding glass door

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Home | Home Security | Page 7

How to secure your sliding glass door

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By Georgia Dixon

Jul 21, 2023

5 min read

Sliding glass doors and French doors are a beautiful addition to any home, but they’re not without risk. Because they can be difficult to secure, they pose a safety problem, both when it comes to keeping intruders out and keeping little kids in. We’ve found the easiest and best ways to secure your patio doors without sacrificing aesthetics.

How to secure your sliding glass door

Cover your doors
Install a sliding glass door lock
Get a security bar
Get a door brace
Install smart sensors

Close-up of a secure lock on a sliding glass door.

1. Consider covering your doors

Window coverings

Sunscreen Panel Blinds

$330

Price is accurate as of post date. Read full disclaimer.

Most people love the natural light and views their sliding glass doors and French doors let in, but sometimes it’s those very views that make the doors unsafe. They offer a wide-ranging look into your home so anyone can see what you have and what might be worth taking. The problem is made worse by the fact that most sliding glass doors are in backyards where possible intruders can take their time casing out a house without anyone seeing.

A simple fix for this problem is covering your doors. Most people opt for long, vertical blinds because they can be easily opened and closed. However, these break easily—especially if you have pets or children. Other stylish options include sliding panels or shutters, which allow for opening and closing but aren’t as flimsy as vertical blinds.

Panels and shutters can get expensive pretty quickly, though. If you’re on a budget or have pets (or kids!) that can be destructive, consider using privacy window film. There are a million different varieties, but all of them will let in light while still obscuring an outsider’s view and protecting your home from unwanted eyes.

2. Install a sliding glass door lock

Sliding door lock

Sliding Door Lock

$34.23

Price is accurate as of post date. Read full disclaimer.

The strongest way to secure your sliding door is with a sliding door lock. These locks are installed at the top of your door where the stationary glass and the sliding glass door meet. These locks work in addition to the door locks and can only be opened by an adult or tall child. They make it impossible to jimmy the door open, from either the inside or the outside. Some of these locks come with two locking positions: one that will lock it completely closed and a second that will let you lock the door in place between 7 and 15 cm open to allow for ventilation.

Installing these locks is more complicated than the other items on our list, but not by much.

Close your door all the way
Clean out the upper track on your sliding glass door
Position the lock in place and mark holes
Drill pilot holes
Secure the lock in place

After you’ve installed the top piece in the upper track, you’ll need to follow a similar process for the locking piece on the door itself. You’ll position the lock, mark the spots you need to drill, then drill the holes and secure the lock in place. (For more detailed instructions, see the manufacturer’s guidelines.)

We'd also recommend other door locks, not just sliding door locks, as they can come with smart features like keyless entry.

Sliding door locks are both super secure and subtle. Guests will likely not even notice them, but your doors will be much safer and just as beautiful.

3. Get a security bar for sliding glass doors

Security bar

Securityman Door Security Bar

$53.41

Price is accurate as of post date. Read full disclaimer.

Remember going to your grandma’s house and always having to pick up the dowel or broomstick she had lying in the track of the sliding glass door? She was doing her best to keep her home safe, but as any enterprising kid can figure out, if you jiggle the door hard enough, you can get it to jump the track or make the stick move. It’s not the perfect plan to keep a home secure, but it can work in a pinch - especially if you're on a budget.

One of the best ways to secure a sliding glass door is to keep it from sliding, and there are many varieties of security bars available that do just that and are typically placed in the track of your sliding glass door.

After placing the security bar in the track of your sliding glass door, all you do is set it with a pressure mounting system (like some shower curtain rods). Many models have padded ends to make sure the pressure doesn’t damage your doors.

4. Get a security door brace for french doors

Security brace

XAXAILLO French Door Barricade

$29.99

Price is accurate as of post date. Read full disclaimer.

The beauty of French doors isn’t just that they let in light but that they open wide for unobstructed views. But they can also pose unique challenges when it comes to security. Like sliding glass doors, the locking mechanism isn’t always the strongest and the amount of glass surrounding the lock makes it easy for a burglar to work around.

The best way to secure French doors is to literally stop the doors from opening with a security brace. A brace can withstand a lot of force and pressure, and it will keep the doors from opening by simply holding them in place. Even if the glass is broken and the doors are unlocked, a brace will hold them in a closed position.

Door braces come with two main parts and are another easy install. One part screws into the floor at the base of the doors. It should be centred across where the doors open and lie flush with the architraves on the bottom of the door.

The second part slides in and out of place and actually pushes up against the middle where the French doors meet. It’s only about 8 cm high and 24 cm wide, but it gets the job done. When you need to open your doors, you simply slide the second piece out of place and set it on top of the door frame.

If you have a tile or stone floor, you might need a professional to install the brace because you’ll need special screws and drills bit to work through those materials. Most homeowners can install a security brace on wood or laminate floors without any problems.

5. Install smart sensors

Door and window sensors

HENDUN Remote Sensor

$31.01(5 pack)

Price is accurate as of post date. Read full disclaimer.

If you want to take things one step further, consider installing some form of electronic security. These options are usually less effective when it comes to stopping a break-in but are great at alerting you or the police to one.

Most of the electronic options are video doorbells so you can keep an eye on your place when you're not around, or sensors. You install them directly on the doors, or you can get door sensors that are part of a larger home security system. These monitors will alert you to intruders by sounding an alarm or by sending a notification to your phone.

You can buy independent monitors, or glass break detectors, for your sliding glass or French doors, too. Glass break sensors are easily installed directly on the door and will sound if the glass is smashed. They aren’t a good option for keeping your doors shut, but they’re great for letting you know when your doors are compromised.

Whatever route you decide to take to secure your sliding glass or French doors, you’ll be adding a greater level of safety to your home for a small cost and minimal effort. That sounds like a win-win to us!

FAQ

Door reinforcements (which are stronger versions of your hinges, door jambs, and shields) work best on French doors and traditional exterior doors. They aren’t recommended for sliding glass doors because the track system requires different parts.

There are plenty of ways to secure your home on a budget. Security bars are going to be your best option because they will keep the door securely closed and often require no anchoring screws.

You can replace your glass doors with impact-resistant glass doors, but it’s very expensive and you typically have to buy them through and have them installed by a window company. With price tags well over $1,000 per door, this isn’t practical for everyone. You can buy security window film that will make glass doors somewhat more shatterproof, but it can be tricky to install.

SafeWise methodology

The products recommended in this article were researched by scouring websites, manufacturers’ specs, user reviews, and interviews. To learn more, check out our full methodology.

Disclaimer

Product prices and availability are accurate as of the date/time of publish and are subject to change. Any price and availability information displayed on the retailer’s website at the time of purchase will apply to the purchase of this product. SafeWise Australia utilises paid affiliate links.

Written by

Georgia Dixon has 10 years of experience writing about all things tech, entertainment and lifestyle. She has bylines on Reviews.org, 7NEWS, Stuff.co.nz, in TechLife magazine and more. In 2023 she won Best News Writer at the Consensus IT Awards, and in 2024 she was a finalist for Best News Journalist at the Samsung IT Journalism Awards (The Lizzies). In her spare time, you'll find her playing games and daydreaming about good food, wine, and dogs.

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