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There are many reasons a homeowner might choose to install a set of French doors. They boast a classic, traditional style, let heaps of light into the house, and are designed to be as easy to operate as they are on the eyes. One area that might be of concern, however, is in security. Many believe that the more open nature of French doors means that they are more inviting to thieves than conventional external doors.
This is simply not true – particularly with modern French doors.
Let’s talk more about French doors and security. The security of your French doors will depend on the build quality of the doors themselves, the quality of the glazing, and the locks. The most secure French doors can be just as, if not more, secure than patio doors or sliding glass doors – you just need to know what to look for!

It goes without saying that a poorly built and/or poorly installed set of French doors will be easy to break into, so arguably the best way to secure French doors is with an installation from a good professional joiner or handyman. A high quality set of French doors which are professionally installed will offer good safety and security for your home.
Of course, if you’re an experienced DIYer it’s perfectly possibly to carry out the installation yourself. Just make sure you know what you’re doing and that, once the installation is complete, the doors are tight in their frame with no obvious space between the threshold and the doors themselves. You’ll also want to ensure the doors can be opened and closed with ease.
Another thing to consider are the security devices your French doors come with. These will vary between both brand and product ranges. All our external French doors are supplied with a secure multi-point locking system as standard.
French doors are generally constructed from either wood or uPVC. Both wood and uPVC come with pros and cons, so it’s up to the homeowner to make the choice that suits them best. Hardwood doors and typically more expensive and require more maintenance, while uPVC provides high-quality insulation and can last years without continuous maintenance.
Learn about the difference between engineered and solid doors here.
The vast majority of homeowners choose French doors as the bridge between their garden or patio, and their home. This maximises how much light those large glass panels can let inside.
That said, these same glass panels can put many prospective shoppers off, with many assuming they are the weakest part of the door. There really isn’t anything to be concerned about, however, so long as the doors are double glazed, and use toughened glass.
Mortice lock – traditionally, the most common lock you’d find on a set of French doors is the 5 lever mortic lock.
This operates in a similar manner to the locks found on most front doors, so is just as secure; however, the rear of the house is less exposed so break-ins from the rear are far more common. This means that your rear doors should be supplemented by a more secure locking system.
Multi-point lock – similar to the systems you’ll find in most bi-folding doors (and many modern front doors), a multi-point locking system works like a mortice lock, but it locks the door (as the name suggests) at multiple points, all operating at the same time with the turn of the key. This is arguably the best and most secure lock for French doors.
We recommend that this is what you should be looking for when buying French doors.
If you feel your home needs extra protection, there are a number of ways you can make your French doors even more secure – effectively turning them into high security French doors. For the very best French door security:
Of course, the best thing you can do to keep your French doors secure is to actually remember to lock them before you leave the house or go to bed at night. Before any burglar resorts to more extreme measures they will always check to see if the door has been left unlocked, so don’t make it easy for them!
Also, remember to check your French doors occasionally for signs of wear and tear. They are external doors after all, so they will be exposed to the elements. This is particularly important for wooden doors. While timber typically lasts many years longer than uPVC, this won’t be the case if the doors aren’t properly cared for. Keep up the maintenance on your French doors and they will last longer and offer better security.
Written by Josh Longville
4th December 2019
Written by Josh Longville
4th December 2019
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Unit 2, Hayleys Manor Farm, Upland Road, Epping Upland, Essex CM16 6PQ
External French doors are an incredible addition to any home. They provide natural light,
French doors are a great addition to homes; even better when they open out onto a
When you’re looking to install new, modern and secure doors in your home, at the top of
External French doors are a great option for your property, opening up the space between
Our family values mean honest advice, real conversations, and help when you need it.
All of our products are delivered safely and reliably to any Mainland UK postcode.
Our expert support team are always on hand to answer your questions. Drop us a line today.
You’ll need to trim mm off the left & right of each door
You’ll need to pack mm either side of the frame
You’ll need to trim mm off the top and bottom of each door
You’ll need to pack mm above
You’ll need to trim mm off the left & right of each door
You’ll need to pack mm either side of the frame
You’ll need to trim mm off the top and bottom of each door
You’ll need to pack mm above
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