Menu

Best Sliding Window Locks

Candace Osmond

For optimal home security, you should make sure all possible points of entry are properly secured- especially the weaker points, such as sliding doors and windows. Due to their design, sliding windows and doors are much easier to pry open and allow intruders to enter your home than the standard designs, so particular attention is needed.

Sliding window locks are one of the easiest ways to keep your window (and your patio doors) secure and sealed. If you are worried about your kids getting into trouble, or if you live in a shady neighborhood, you can certainly benefit from having your sliding windows locked. The designs of these locks vary from brand to brand and come in many shapes and sizes. However, their ultimate goal is the same – lock the window in place and prevent forceful entry.

You may be interested in: Best Window Locks

1. Maxdot 4 Sets Sliding Window Door Locks – Editor's Choice

Check Price
  • Material: Aluminum Alloy

2. Ideal Security Window Lock Bar

Check Price
  • Material: Aluminum

3. Momentum Brands Sliding Window Locks

Check Price
  • Material: Aluminum

4. Defender Security Sliding Window Lock

Check Price
  • Material: Diecast

5. Supply Guru Sliding Door and Window Lock

Check Price
  • Material: Metal

6. OKEFAN Safety Slide Window Locks

Check Price
  • Material: ABS Plastic

You may want to check out: Best Window Bars

What are the Types of Sliding Window Locks?

When it comes to sliding windows and doors there are numerous ways you can lock them in place. In the case of windows, they can slide both vertically and horizontally, and that gave rise to all sorts of lock designs. However, although these designs are diverse, they all have the same purpose and function- so there’s not that much room for improvisation. Still, some seemingly small design changes can make a world of difference and make or break your decision. Knowing a bit more about different types of sliding window locks can help you make the choice and find one suited for your home.

— Deadbolt sliding window locks

The deadbolt mechanism is one of the oldest and most basic concepts for all types of locks. For sliding windows, it still serves as one of the most reliable designs as it can really withstand a lot of force and still not budge. However, they do require a bit of handiwork to be installed properly, and that means you will have to use tools and test your skills. For the deadbolt to work, it needs to be inserted into a hole. And that hole needs to be drilled into the frame of the window. Nevertheless, if you can manage this little bit of work, you can enjoy the benefits of the security it brings.

— Screw type sliding window locks

These are some of the simplest and basic designs. Screw-type locks are simple – but that does not mean they are inefficient. On the contrary, a screw-type lock can be one of the sturdiest and safest locks you can put on a sliding window. What is characteristic of these is just how simple they are to use. They require no tools and no effort to install – simply put them onto the frame and screw them in tightly. And if you doubt they will hold, just put two adjacent to one another. That will make for a lock that is impossible to force open!

— Clasp sliding window locks

In today’s day and age, sliding windows are often made with vinyl and PVC frames. While this is a very durable and efficient building material, it’s not always the best in combination with old-school steel and aluminum window locks. These can bend the vinyl frame out of shape and leave deep scratch marks after repeated use. To effectively combat this issue, designers came up with the clasp type of locks. These are usually made from durable materials that are an alternative to steel and require no tools and no tightening – simply place over the frame and secure the clasp tightly. They provide the same superb security without damaging the window frame in any way whatsoever.

— Security bar sliding window locks

When it comes to versatility and adjustment, the security bar design is the foremost concept in sliding door and window locks. Several aspects make them stand out from the other designs: they can be adjusted to virtually any size, they work well for both windows and doors, they can be mounted vertically and horizontally, and they can withstand a whole lot of force. And if that wasn’t enough, there is also the visual security: any would-be intruder that spots one of these secured to the sliding window will know that there’s no way they’re breaking in!

1. Maxdot 4 Sets Sliding Window Door Locks – Editor's Choice

Most windows come with standard locks. However, if you have small children at home or want to amp up your home security, secondary window locks are a wise investment.

Highlights

  • Material: Aluminum Alloy

Pros

  • Simple design
  • Durable aluminum alloy build
  • Easy to use
  • Quick setup
  • Multiple locks can be combined
  • Good package deals

Cons

  • Doesn’t fit every type of slider

Much like sliding doors, sliding windows are a popular choice in many households- they give an unobstructed view and are energy efficient. However, they can be much easier to open – both from inside and outside which recurs additional security measures to protect your home from intruders. This Maxdot sliding window lock is an ideal example of how you can keep everything safe and secure at all times.

Made from durable aluminum alloy, these locks follow a very simple but highly effective design. Simply place the bracket at a suitable spot on your sliding window and tighten it with the provided key. Once in place, it prevents sliding and can easily keep your young ones within, and the thieves without. This design boasts great adaptability – you can combine two locks in unison for extra safety, especially if the window in question is larger. Maxdot also offers several package deals, so you can easily outfit your whole house with a single purchase- convenient and efficient both!

Who Should Buy This Product?

Here is a suitable solution that requires minimal effort on your part. You can have your sliding windows secured in mere moments – and you won’t have to worry ever again about their misuse.

2. Ideal Security Window Lock Bar – Runner Up

Highlights

  • Material: Aluminum

Pros

  • Sturdy build
  • Adjustable
  • Various size choices
  • Easy to set up
  • Works on any type of windows and doors
  • Acts as a visual deterrent

Cons

  • Not a good choice for child safety

Sliding windows can be both vertical and horizontal. Depending on the version you own, it might be difficult to find a lock that is effective for both. Luckily, the security bar lock such as this one is the ideal design that keeps both versions secured. This versatility makes it suitable for almost any type of window or door. Very durable and modernly designed, this security bar is super easy to adjust and use on any type of sliding window.

Of course, to ensure a tailored fit, there are 3 different sizes to choose from- so you can have your security bar set up in a matter of minutes with minimum effort no matter what size window you have. One great aspect of this design is its appearance: it effectively acts as a visual deterrent for any would-be intruders – once they see it placed in position, they will quickly understand that their burglarizing efforts will be in vain.

Who Should Buy This Product?

Security bars are a great example of how a simple and sturdy design can be highly efficient. This product works well on any type of sliding window and will solve your issues with potential intruders.

3. Momentum Brands Sliding Window Locks – Customer’s Choice

Highlights

  • Material: Aluminum

Pros

  • 12 locks in one pack
  • Easy to use and install
  • Sturdy
  • Versatile uses
  • Can be combined for added strength

Cons

  • Screws can get loose over time
  • Only for certain window frame widths

If you are looking for an affordable, easy-to-use, and efficient security solution for your sliding windows, this simple but effective set of locks can be just the thing! This traditional, straightforward design works perfectly for both vertical and horizontal sliding windows and boasts exceptional durability and resistance. As such, it can deter even the most stubborn intruders, and also keep your young ones from meddling with the windows. This design is made to slide onto the window rail where it is fastened tightly with the help of the included screw.

Of course, the locks are made from a tough aluminum alloy that can really take a beating and remain firmly in place. What is more, you can always rely on pairing two locks on the same window, if you think you need that extra safety and strength. That’s just one of the charms of this super versatile design!

Who Should Buy This Product?

If you are on the lookout for something simple and affordable as just a basic safety measure, you can fully rely on this traditional window lock design. Great peace of mind with a lightweight price tag!

4. Defender Security Sliding Window Lock – Best Sliding Window Lock for Vinyl Windows

Highlights

  • Material: Diecast

Pros

  • Efficient vise grip design
  • No tools required
  • Durable
  • The color matches the window frame
  • Great adjustability
  • Affordable
  • Ideal for vinyl windows

Cons

  • Should be doubled for best results

Placing a standard steel window lock on a vinyl window can damage it, leaving scratch marks on the frame and bending it when tightened too much. However, that doesn’t mean that vinyl sliding windows can’t be locked and secured from burglars. This superb design is made for vinyl windows exclusively and still provides you with the same level of security as standard locks- just without damaging the frame. These locks are made with a sturdy diecast method and rely on an ingenious vise grip design. This means that they are adjustable and can fit on any window frame width and still clamp on tightly and securely.

One of the best features of this lock is the fact that this sliding window lock requires no setup – simply clamp it on wherever you want and you are set! The cam style lever requires no tools – and that is a welcome change for anyone that’s not handy with the toolbox. Better still, these locks are painted white, and that makes them fit inconspicuously with most vinyl window frames, keeping the look nice and tidy.

Who Should Buy This Product?

There is no need to mar the look of your valuable vinyl window frames. Say no to scratches and bends and opt for these diecast locks that will keep your vinyl windows both looking pristine and safely locked up.

5. Supply Guru Sliding Door and Window Lock – Best Sliding Window Lock With Key

Highlights

  • Material: Metal

Pros

  • Durable build
  • Classic design
  • Double keys provided
  • Extra security

Cons

  • Requires drilling and tools

Having a key that secures your window lock can contribute so much to overall security. It allows for more versatile placement and no worries that someone who shouldn’t open the lock and the sliding window- will. This classic deadbolt design is ideal in so many ways. One of those old-school, traditional designs, it still makes for one of the best solutions for locking your sliding windows. The secret here is in the simple design. Mount the lock wherever you need it and the spring-loaded deadbolt slides in – making for a virtually impenetrable lock.

The clear benefit here is the keylock. Once locked, the deadbolt stays in place and won’t budge whatsoever. This makes it ideal for anyone looking to up their home security a notch. Keep your young ones safe inside, and the “curious” ones outside. Another great aspect of the deadbolt design is durability – they are known to withstand extreme force and remain firmly in place.

Who Should Buy This Product?

Deadbolt locks are still one of the best designs when safety is considered. This offer however is further enhanced with the addition of a key lock, which adds much more to its versatility and your peace of mind.

6. OKEFAN Safety Slide Window Locks – Best sliding window lock for kids

Highlights

  • Material: ABS Plastic

Pros

  • Easy to use
  • No tools required
  • Surprisingly sturdy
  • A versatile design
  • Sleek design
  • White color
  • Affordable

Cons

  • Not efficient against intruders

Our youngest ones can be such crafty little explorers. Their curiosity is seemingly boundless, and sliding windows are a prized goal for them. However, this can lead to trouble, so it’s best to keep the windows tightly locked. These Okefan locks are the ideal solution: a simple and efficient design that requires no tools to mount is perfect for young parents with little spare time on their hands. The locks are made from high durability ABS plastic, and require just a few presses and push to be locked into position. Placed out of reach of children they make for a super-efficient lock and safety mechanism.

Who Should Buy This Product?

There is no need to always be on the edge of your seat and constantly observe your young ones in expectation of trouble. With these child-safe sliding window locks, you can ensure that peace of mind for yourself and top-notch safety for your kids.

Bottom Line

While sliding doors and windows are energy efficient, provide a clear view of the outside, and can be a lot more convenient to use than their standard counterparts, they can still be a vulnerable spot in terms of home security. Kids can get in trouble by opening the window and falling out, but the intruders too can exploit it as an ideal spot to enter the home. That is where sliding window locks come especially in handy – they can keep every sliding window in your home secure, and give you that much-needed peace of mind, whether it’s your toddlers worrying you or the possibility of a break-in.