The sound of a door handle rattling in the middle of the night is enough to stop your heart. Those double doors that provide such a lovely view of the garden can easily become the weakest point in your home.
Securing these glass panels requires a bit more care than a standard deadbolt. If you want to sleep soundly, these Best French Door Security Locks provide the necessary barrier against unwanted visitors.
Key Takeaways
- Prioritize heavy-duty steel construction that can withstand significant prying pressure from a crowbar.
- Check that the lock mechanism allows for easy emergency egress during a fire or other life-threatening event.
- Ensure the device is fully adjustable to accommodate the varying gap sizes between your specific door handles.
- Look for locks that require a physical key from the outside to ensure your entry remains truly secure.
- Verify that the installation process does not require permanent damage to your door frame or wood finish.
| Best Overall Security |  |
MOSECYOU Adjustable Double Door Barricade | Simple mechanical design | Adjustable width settings | Heavy duty steel construction | View on Amazon | Read Review |
| Top Professional Standard |  |
PATLOCK Police Approved Door Lock | High security certification | Fast visual deterrent | Snaps on securely | View on Amazon | Read Review |
| Reliable Keyed Security |  |
AST Adjustable French Door Lock | Includes three brass keys | Adjustable fit for doors | Sturdy metal construction | View on Amazon | Read Review |
| Best Spare Option |  |
AST Keyed French Door Security | Consistent keyed access | Adjustable frame attachment | Solid build quality | View on Amazon | Read Review |
| Versatile Door Brace |  |
FlyingAMZ Adjustable Door Security Brace | Telescoping length adjustment | Multi-door compatibility | Easy floor placement | View on Amazon | Read Review |
More Details on Our Top Picks
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MOSECYOU Adjustable Double Door Barricade
If you want a straightforward physical barrier for your French doors, this barricade style is your go-to. It sits firmly across the door handles to prevent the doors from being pried open, acting much like a sturdy steel seatbelt for your entryway.
The design relies on adjustable tension to ensure a tight fit across various handle widths. Just keep in mind that this type of lock is purely for internal use while you are home, as it does not provide any exterior access.
- Brand Name:MOSECYOU
- Product Type:Barricade lock
- Adjustability:Yes
- Material Type:Steel
- Additional Feature:Creates a physical barricade
- Additional Feature:Easy to install manually
- Additional Feature:Fits most double handles
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PATLOCK Police Approved Door Lock
This unit is designed specifically for French doors that feature two internal horizontal handles. It earns its reputation by acting as a highly visible deterrent that snaps over the handles to keep the locking mechanism immobilized.
Because it is police approved, you can feel confident in its ability to resist forced entry attempts. It is a bit bulkier than simple bars, so you will need a dedicated spot to store it when the doors are in active use.
- Brand Name:PATLOCK
- Product Type:Handle lock
- Material Type:Reinforced plastic and steel
- Additional Feature:Visible from outside
- Additional Feature:No drilling required
- Additional Feature:Fits standard horizontal handles
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AST Adjustable French Door Lock
If you prefer a traditional keyed lock over a physical bar, this AST model provides a classic solution. It attaches to the door frame or handles to ensure both sides remain locked together tightly when the house is empty.
The inclusion of three unique brass keys means you can keep spares in convenient locations throughout your home. Be aware that the installation requires a bit more precision and alignment compared to a simple slide-on barricade.
- Brand Name:AST
- Product Type:Keyed door lock
- Adjustability:Yes
- Key Requirement:Requires key to open
- Package Count:One lock set
- Additional Feature:Durable brass components
- Additional Feature:Prevents door separation
- Additional Feature:Reliable mechanical locking
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AST Keyed French Door Security
This is the same dependable mechanical lock found in the previous entry, making it a solid choice if you need to secure a second set of doors. It functions by creating a rigid connection between the two doors, preventing the handles from rotating.
It works exceptionally well for homeowners who prioritize physical key control over temporary bar locks. Since it is adjustable, you can modify the length to fit the specific gap between your door handles.
- Brand Name:AST
- Product Type:Keyed door lock
- Adjustability:Yes
- Key Requirement:Requires key to open
- Package Count:One lock set
- Additional Feature:Includes three spare keys
- Additional Feature:Locks both doors simultaneously
- Additional Feature:Corrosion resistant finish
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FlyingAMZ Adjustable Door Security Brace
Sometimes you need a flexible security solution that works on more than just standard French doors. This brace provides a telescoping design that can be braced against the floor or the door handle to stop unwanted entry in its tracks.
It is particularly useful for doors that have irregular handle configurations where standard locks might fail to grip. Just remember to check the floor surface before installing, as it needs a stable area to gain maximum leverage.
- Brand Name:FlyingAMZ
- Product Type:Security door brace
- Adjustability:Yes
- Material Type:Reinforced steel
- Additional Feature:Works on standard doors
- Additional Feature:Non-slip base pad
- Additional Feature:Quick release mechanism
