Updated for 2026
Are you looking for the best locks for your French doors? You are in the right place, as we have researched and tested several French door options. During our research with numerous options, we narrowed our list down to five locks.
The best five locks for French doors are the following:
| Lock Model | Best For | Installation Type | Primary Security Mechanism | Pricing |
|---|---|---|---|---|
| Patlock Security Lock | Overall Protection | Tool-Free Handle Lock | Sleeve-locked handles prevent latch retraction | Check Price |
| Master Lock 270EC Security Bar | Kick-In Resistance | Tool-Free Jammer | 20-Gauge steel floor-to-handle bracing | Check Price |
| Sumnacon Heavy-Duty Flush Bolts | Inactive Door Anchoring | Mortised into Door Edge | Solid steel top/bottom frame bolts | Check Price |
| Rulart Double-Cylinder Deadbolt | Glass Pane Defense | Replaces Standard Deadbolt | Keyed entry on both exterior and interior | Check Price |
| Alise Stainless Steel Flip Latch | Budget Secondary Latch | Surface-Mounted (Screws) | Heavy-gauge steel cross-door latch | Check Price |
If you want superior security for your property’s French doors, we recommend choosing one of the following options. Keep reading further to learn about the best French door locks and their features.
What Makes a French Door Secure?
Before choosing a locking system, evaluate how the hardware addresses the three primary structural vulnerabilities of double patio doors.
Unfortunately, French doors do not have a good reputation. Most stock French doors have weak locks that criminals often bypass. At Serious Home Security, we aim to help you upgrade your French doors to keep someone out who attempts to break in.
When shopping for a French door lock online, there are a few characteristics your product should have for the best results. As part of your buying process, you should look for the following things that counteract:
- Center Seam Weakness
- Glass Reach Through Vulnerability
- Handle Manipulation
These factors allow you to find the best French door lock for your unique preferences. In this product breakdown, we included French door lock options with varying characteristics and features.
5 Best Locks For French Doors
Patlock Security Lock for French Doors
Easy installation and superb security. The Patlock Security Lock is the top option when you want to secure your French doors. The lock is placed over the inside handles of the French doors and restricts their movement.
What makes this lock special is the easy adjustability that fits on most French doors and makes installation fast. The lock is designed to fit on door handles and can be removed easily by pressing two buttons on the device.
If you are concerned about fire safety, we can assure you that the lock can be removed in an emergency quickly. However, young children may have difficulty removing the device, so it’s best to have an alternative plan to exit the house.
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Pros
- Straightforward Installation
- Adjustable Handles
- Durable Design
- No Keys or Code Required
Cons
- Often Out of Stock
Master Lock 270EC Security Bar
Sometimes, you need heavy-duty physical bracing to prevent French doors from being kicked inward. An adjustable steel security bar wedges directly underneath the door handle and transfers force straight into the floor. This eliminates the strain placed on the center latches and deadbolt when someone attempts forced entry.
Utilizing a security bar is an excellent option for active French doors on tile, hardwood, or carpet. The non-slip rubberized base pivots to maintain direct floor contact, while the padded door handle holder protects the finish on your door hardware. However, this security solution requires manual placement every evening and must be removed before you can open the doors to exit.
If you have pets or small children who bump into doors, the bar keeps the door leaf firmly planted in place without budging. The telescoping design also lets you adjust the pin height to achieve the exact angle and tension required for your door handle height.
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Pros
- Heavy Duty 20-Gauge Steel Option
- Tool-Free and Easy Setup
- Pivoting Rubber Base that Doesn’t Scratch Floor
- Adjustable Length Fits Most Door Heights
Cons
- Must Be Manually Set Up and Removed
Sumnacon 2 Pcs Door Flush Bolt Lock
Do you want a lock that seamlessly integrates with your French doors? The Sumnacon 2 Pcs Door Lock is a great option that fits flush into the door. By attaching the two pieces to both doors, you can better secure your property.
Installation may seem complicated, but most people mentioned the ease of installation for this French door lock. The door locks also come with various color options that complement your doors.
The lock also comes with rust-resistant screws that prevent the door lock from losing its integrity in the future. Once installed, the flush bolt is smooth and comes with an internal spring that helps with operation.
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Pros
- Seamless Design
- Rust-Resistant Bolts
- Straightforward Installation
- Various Color Options
Cons
- Installation Needs to Be Accurate
Rulart Double Keyed Deadbolt Lock
One of the main security concerns of French doors is the glass that makes up the doors. If someone wants to enter your home, they can bypass your French door lock by breaking the glass and removing it.
The best solution we have found to securing French doors from this weakness is a double-cylinder deadbolt. A double-cylinder deadbolt requires a key to open and close the lock on the French door.
While this will enhance the security of your French doors, it comes with a fire safety risk. Most fire departments don’t recommend a double-cylinder deadbolt because it impedes your ability to escape unrestricted from a property.
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Pros
- Extra Security From Glass Breakage
- Easy Installation for French Doors
- Cost-Effective Pricing
- Low-Profile Design
Cons
- Not Recommended by Fire Departments
Alise Stainless Steel Flip Latch Gate Lock
If you want a cost-effective lock option with impressive durability, you need the Alise Stainless Steel Flip Latch Lock. Made of quality stainless steel, this French door lock can provide years of durability for your home.
While this lock is more challenging to install than the Patlock, you can still install it quickly by following the included instruction manual. You can attach this effective lock option by driving four wood screws into your French doors.
With an average price of less than $10, this is the perfect option for someone wanting a budget-friendly lock. The only downside to our option is the appearance may affect the look of your stylish French doors.
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Pros
- Constructed of Durable Stainless Steel
- Difficult For Children to Open
- Easy to Install on French Doors
- Affordable Lock Option
Cons
- Can Affect Door’s Style
Frequently Asked Questions
French doors typically don’t need specialized locks that you wouldn’t use for any double door option. However, if you want to install a lock on the surface of the French doors, you will need to purchase a special lock like the Patlock or a latch lock. These locks will give you the best security for your French doors.
If you want to burglar-proof French doors, your primary goal should be to improve the glass and locking system. A security screen or glass film will help to protect the glass if someone attempts to break it. For the locking mechanism, you can upgrade the deadbolt or add an exterior lock that boosts security.
Unfortunately, a set of French doors is one of the easiest entry points to break into a property. With large glass panes and a weak locking system, the standard French door will be a target of potential thieves. If you want to feel confident in the security of your home, you should upgrade the French doors.
Conclusion
We must admit that choosing a lock for French doors will be one of the more challenging tasks in securing your home. French doors are an easy target for criminals looking to enter your property.
Fortunately, you can boost security by choosing one of the lock options featured in this review by Serious Home Security. Research the French door locks we mentioned and determine which suits your requirements best.