6 Best Sliding Door Locks in 2020

Sliding doors are great, looks and functions wise. They are mostly a part of our patio installation and window systems. After front doors, patio doors and windows are the main target for intruders. This is why locking a sliding door is as important.

Having the best sliding door lock is important to not only prevent people from outside breaking in but also keeping kids, pets, and people with disabilities inside. It is a security necessity. I have rounded up 6 options that will work best for a lot of situations. So, let’s get started…

Table of Contents

  1. Our Pick
    1. Best Overall – Ideal Security BK110W Child-Lock Patio Door Security Bar
    2. Best Overall Runner-Up – Master Lock Security Bar
    3. Best Value – Cardinal Gates Patio Door Guardian
    4. Best Value Runner-Up – TOLEDO Sliding Door Patio Lock
    5. Best Budget – Lion Locks Aluminium Sliding Doors and Windows Lock
    6. Best Budget Runner-Up – OKEFAN Baby Safety Sliding Door Lock
  2. What is the Best Lock for a Sliding Glass Door?
  3. How Can I Make My Sliding Door More Secure?
  4. Are There Smart Locks for Sliding Doors?
  5. Conclusion

Best Sliding Door Locks

1. Ideal Security BK110W Child-Lock Patio Door Security Bar

Best Overall

The BK110W Patio Door Security Bar is ideal for patio doors. It is constructed using aluminum so that it doesn’t wear down easily and also doesn’t rust. The installation is easy and it only needs some screws. 

Once installed, all you have to do to use it is to move it up or down. The bar height is adjustable and ranges from 25.75 inches to 47.5 inches.

It comes with a child-proof lock to ensure that the door can’t be unlocked by a child. The mechanism of mounting this security bar makes it mount in the center of the door and not at the base like many others. So, you can reach the bar without bending and it will also be difficult for a child to try to push it.

Ideal Security BK110W Child-Lock Patio Door Security Bar is Suitable for:

It is a great option for patio doors as it is specifically designed for that. The child-proof lock makes it even more secure and gives you the option of keeping the door open a little for ventilation. 

Pros:

  • It is a great option for patio doors and large sliding windows.
  • It mounts at the middle of the door and makes it easier to access by adults and difficult to access by children.
  • It brings easy installation and maintenance.
  • It has a child-proof look to prevent the bar being moved by children.

Cons:

  • It is not ideal for some of the vinyl doors because it uses screws to be installed, which can cause possible damage.

2. Master Lock Security Bar

Best Overall Runner-Up

The Master Lock Security Bar is light on your pocket, but manages to provide you with an extra layer of reinforcement and security. The pivoting ball joint makes sure that the security bar makes secure contact with the floor, even if you are having problems lining it up.

It is made of 20-gauge steel but only weighs about 2.5 lbs due to the use of plastic components, making it a lightweight option that is easy to handle – and also store when not in use – by anyone.

The Y-shaped yoke can be removed from the Master Lock Security Bar without any tools and that will help it fit perfectly into the track of your sliding patio door. You can detach the top piece to use it with a sliding door. The padded foot makes sure to grip the floor without causing scratches, but if you lose the padding or don’t get it, then the hard plastic can cause some damage to your floors.

The metal spring-loaded pin is used to adjust the length of the bar. The security bar is designed to withstand up to 350 lbs of force. You can adjust its size from 27.5 inches to 42 inches for more flexibility with different door types. 

Master Lock Security Bar is Suitable for:

It is perfect for a variety of door types like a French door, hinged-door, sliding door, and your front entry door. So, it works well for apartments and nuclear family homes or even offices.

Pros:

  • It is adjustable to be used with sliding and swinging doors.
  • It is easy to use.
  • It works for a variety of doors, which makes it perfect for homes.
  • The long adjustability option allows it to fit most types of doors and even makes it compatible with doors that have a deadlock.
  • It is lightweight at 2.5 lbs.
  • It is inexpensive.

Cons:

  • The pin used to adjust the length of the bar may loosen over time with regular use and allow the bar to collapse and fail.
  • While the plastic used makes it lightweight, it also makes it prone to breaking and damage if it falls.

3. Cardinal Gates Patio Door Guardian

Best Value

Cardinal door lock is installed at the top track of your sliding door. It is a great option because of this feature because it also makes it child-proof as children can’t reach the top of the door.

The lock is a two part lock and receiver system. The lock is bolted into your door. Yes, you will need drilling for this one but as it comes with all the parts needed it shouldn’t be much of an issue. The receiver is screwed into the top track of your door. The locking mechanism that makes the lock work is a spring-loaded bolt sliding door lock.

This system lets you crack your door open at about 3 inches to allow air flow. It is white in color to fit in with most doors. You also get limited warranty with the lock purchase.

Cardinal Gates Patio Door Guardian is Suitable for:

Because this sliding glass door lock is mounted at a height it makes it a great option if you have children or pets. They cannot fiddle with the lock to unlock it by mistake. It attaches to the top of the door making it stay out of reach for the children.

Pros:

  • Mounts at the top of the door, making it child-proof.
  • It is easy to install if you are handy with a screwdriver.
  • It is durable.
  • It is more discreet than other options.
  • Allows air ventilation without having to compromise on security.
  • It works on vinyl, aluminum, or wood sliding doors on inside tracks only. (Doesn’t work on doors with outside tracks.)

Cons:

  • You have to be careful to disengage the lock when outside, or you can shut yourself outdoors.
  • You have to drill holes.
  • It is not suitable for thick doors.

4. TOLEDO Sliding Door Patio Lock

Best Value Runner-Up

The key difference that TOLEDO brings when compared to others is a key locking mechanism. It is good for swinging and sliding doors alike. It is a silver rectangular box that is a surface mounting device and yet doesn’t take away your aesthetics either.

It is constructed with hardened steel and the box has a pointed bolt driven through it. It has concealed screws that make it tamper resistant. The construction material is hacksaw and bolt cutter resistant. The design is made to be anti-theft, which is why it includes two hidden screws so that no one can tamper with it.

It comes with screws for easy assembly and two Yale keys. Keys are the only way to lock and unlock the lock so make sure to keep the keys safe.

How it works is that the bolt we talked about earlier inserts and pushes into place within a hole that is drilled into your door jamb during installation. After that, you manually lock it securely using the key and when you want to unlock it, you can just use the key again to unlock the patio lock.

The company also offers a 100% money-back guarantee which shows their confidence in the product. Once in place, it is difficult to tamper with and is also hidden enough if you want a stealthy system.

TOLEDO Sliding Door Patio Lock is Suitable for:

It is suitable for people who would like to have more control over the locking mechanism. This patio lock gives you the experience of the traditional lock and key method that has always represented security for many of us.

Pros:

  • The construction of this patio lock is durable and is designed to withstand force.
  • The installation is easy and easy to use.
  • The locking mechanism holds the door securely in place.
  • The keys are included.
  • The construction material is hacksaw and bolt cutter resistant. 
  • Antitheft design using concealed screws.
  • It can be used with swinging as well as sliding doors.
  • 100% money-back guarantee is included via the company.

Cons:

  • The disadvantage of having keys is the chance of losing them. If that happens, then you are in trouble.
  • Installation requires you to drill holes.
  • You cannot keep the door open just a tiny bit like some security bars allow.
  • Door can only be used in one position when the lock is in place.

5. Lion Locks Aluminium Sliding Doors and Windows Lock

Best Budget

Lion lock is one of the easiest installations you will see on this list. There is no need to drill holes, no tools needed, no parts to assemble, and you don’t even have to stick it. All you have to do is fix it to your door or window sliding tracks. 

How it works is that there are two thumbscrews and a rubber grip that will cling to the tracks and prevent your door from sliding more than you want to or at all if you choose to. It is efficient for blocking people from coming in from outside but it can be undone from inside so is not a great solution if you are looking for something that is child-proof.

It comes in a pack of 10 so one piece costs you around $1.50, which is very affordable and great for people who can’t afford expensive locks or move from place to place. It is not only suitable for doors but also for windows, or any kind of sliding glass that has a track you can attach it to.

Lion Locks Aluminium Sliding Doors and Windows Lock is Suitable for:

The Lion lock is a great option for renters or anyone who is a frequent traveler. It is inexpensive, easy to carry along, easy to install, and works efficiently in keeping people outside. You can add it to your sliding doors with locks for additional security.

Pros:

  • It is affordable at around $15 for a pack of 10, meaning $1.50 per piece.
  • The installation is pretty easy.
  • It is great for people renting or people who frequently travel.

Cons:

  • It is removable from inside, so it is not child-proof.
  • It is not suitable for heavy windows.

6. OKEFAN Baby Safety Sliding Door Lock

Best Budget Runner-Up

The OKEFAN baby safety lock is great for child-proofing your sliding glass doors. It is even easy to install as it uses the simple peel-and-stick application. All you have to do is stick it to the glass panel to stop the sliding door from opening. When you want to open the door, you can just press the pedal and access the door.

Sliding glass doors need to be secured when you have a baby. Toddlers and pets are curious and like getting in trouble while they explore so making sure you have a door slider lock that will keep your baby safe from venturing out in the balcony or in your backyard with a pool is a must.

It is made of high quality ABS plastic, stainless steel spring, and strong 3m adhesive tape so it is light-weight while being durable, and won’t be a problem installing. It is also easily viewable because of its size, warning any intruders of the safety locking mechanism in place.

OKEFAN Baby Safety Sliding Door Lock is Suitable for:

This device is great for people who want to child-proof their house. It not only works with sliding glass doors, but also can be used for sliding cabinets, windows, glass cupboards, and more.

Pros:

  • No drilling is required, which makes the installation easy.
  • It is easy to access for adults and difficult for kids.
  • It is available in multiple colors.

Cons:

  • It can be too big when it comes to some sliding doors

What is the Best Lock for a Sliding Glass Door?

I have mentioned 6 options that will work perfectly well with a sliding glass door. If you haven’t read the individual reviews, then here is a quick overview.

TL;DR

Best Sliding Door Locks

  • Best Overall – Ideal Security BK110W Child-Lock Patio Door Security Bar
  • Best Overall Runner-Up – Master Lock Security Bar
  • Best Value – Cardinal Gates Patio Door Guardian
  • Best Value Runner-Up – TOLEDO Sliding Door Patio Lock
  • Best Budget – Lion Locks Aluminium Sliding Doors and Windows Lock
  • Best Budget Runner-Up – OKEFAN Baby Safety Sliding Door Lock

How Can I Make My Sliding Door More Secure?

Adding a lock for sliding doors helps make it more secure, but here are some other ways to up your security game along with locking sliding doors:

  • Reinforce the sliding glass door
  • Replace the old lock
  • Add alarm sensors
  • Add shatterproof film
  • Add window films
  • Add a rod or security bars in the track
  • Add a deadbolt lock
  • Install a door brace
  • Install Security cameras
  • etc.

Are There Smart Locks for Sliding Doors?

Yes, there are smart locks for sliding doors but they are heavy on the pockets and also require expert maneuvering to install. There are options that are keyless, use a keypad that can be locked and unlocked using a passcode, etc. The minimum you would be spending for a smart lock would be around $200.

Conclusion

I have discussed six options for you to choose from based on different focus points. Out of them, the Ideal Security BK110W Child-Lock Patio Door Security Bar is my overall choice because it is strong, is child-proof, allows ventilation, and brings peace of mind. There are other value and budget options as well for you to choose from. Let me know what concerns you have, and I will bring the answers to you.