When we began our research for sliding window lock, we realized that there are several different manufacturers offering almost similar kind of window locks. Hence, finding a high-quality lock won’t be that easy if you have very little knowledge about it. But with the help of your research you will be able to find the best sliding window lock for yourself. If you want our recommendation, then we believe Defender Security U 9809 outscored other locks during testing phase.
1. Defender Security U 9809 – Best For Vinyl Windows
- EACH PACK INCLUDES – (2) Adjustable jaw that fits all vinyl frame rail thicknesses from 1/16" up to 1/2 in. thick....
- SECURELY LOCK WINDOWS – These U 9809 sliding window locks for vinyl windows help keep them securely closed. The locks...
- ADD EXTRA SECURITY – Use these sliding window locks to prevent unwanted intruders and avoid falling accidents...
If you are looking for vinyl window security locks make sure to read the review of this window lock by Defender Security. It comes in all white color. This window lock can be easily installed into place without a marring frame. It has an adjustable jaw which can fit all vinyl frames. The thickness of vinyl frame rail can vary between 1/16” to ½”. So, you can also lock your windows in ventilating position. It has a cam style locking lever for efficient performance. Also, it comes in a pack of two.
The best part is that it can also be used as double hung window locks for ventilation. After closing the window with lock, opening it up is not a big deal. It is a smaller version, so we recommend to use it as a secondary lock. The advantage is that you need nit install window frames. However, you need to be gentle while turning the knob otherwise it will break off. This may happen due to the unstable structure, but if you handle it properly, it will last long.
Among all the sliding window security locks Defender Security U 9809 performed great. From installation to use, it scores good number during tests. That is why it gained first spot on our list.
2. Lion Locks – Best For Sliding Windows
- SLIDING TRACK LOCK: Secure your patio door, sliding glass door, and both horizontal & Vertical sliding windows. Ideal...
- DURABLE & SENSIBLE: Made of heavy-duty aluminum the lock includes a vinyl lining to prevent you from scratching your...
- NO TOOLS NEEDED: These window locks are easy to install with double door lock thumb screws securing sliding door &...
Lion Locks presents us with a pack of 10 sliding doors and windows locks. It has a different structure than other locks due to two turning knobs. You can use them for sliding glass doors, patio doors, and sliding windows. It can be installed without the use of any tool. The upper body is made up of heavy-duty aluminum, and the inner lining is built of vinyl. This inner lining helps to prevent from scratches and provides an additional grip to secure windows.
The advantages of having these sliding door/window locks are quantity, strong construction, and proper safety with two thumbscrews. Moreover, the price is very reasonable as compared to the above-given sliding lock. But, the screws need to tighten with force as they are not soft. This is where one of the cons lies. You will find it difficult to manage the lock if you have to open and close the window on daily basis.
We liked the built quality of the lock. Since it is made out of the aluminum it is perfect for the windows that are exposed to moisture. This lock will work perfectly during rainy season. Also we believe it is the best sash window locks.
3. Maxdot – Best for Budget Conscious Users
- Size: volume approx. 3 x 2.4 x 2.4 cm/ 1.18 x 0.94 x 0.94 inch(LWH), apply to track heights more than 1.5 cm/ 0.6...
- Easy to install: there is no need to install extra tools, it equips a hex key in each window locks, holding on the track...
- Durable material: it is strong, solid and sturdy, exquisite workmanship, aluminum alloy frame and stainless steel screws...
These are small sliding window locks by Maxdot. It comes in a package of 4 along with one thumbscrew in each lock. This lock is easily applicable to tracks of thickness between 1.6cm or 0.63 inches. So, it may not be possible to apply them on middle tracks of windows. The thumbscrews provided are key like structures for easy opening and closing. These are hex keys. The sliding window lock frame is made of aluminum alloy, and the key is made up of stainless steel.
Depending upon the thickness, it also works well on vinyl horizontal as well as double hung windows. The key knob is very handy as you can easily detach it. The price is considered to be very budget-friendly by our experts. And with regards to the quality of the material, it uses aluminum alloy which will work in wet conditions. But as you use it, you will find out that the key is too big unless the clearing from the rail is ¾” thick. Because of the small size, it may be difficult sometimes to secure them on metal frames. But after few tries you will get use to it.
Generally, products like this are bought in quantities because you need to cover all the windows at your property. Out of all the sliding window locks, we believe Maxdot has more reasonable price. That’s why we have placed it among the budget-friendly sliding window locks with key.
4. Defender Security U 9819 – Best Option with Knob
- Secondary Lock
- Fits up to 1/8 In. thick rails
- Allows window to lock in ventilating position
It is a sliding window lock by Defender Security that comes in a set of 4. You can easily fit this on rails of thickness up to 1/8″. It is also has a key insert like structure to secure it tightly. So, you can also lock your windows in ventilating position from further sliding. But unlike the above-given window lock, its key inserts are not detachable. However, the function is almost the same and provides satisfactory results after its testing.
We also tried to install them on sliding doors, but it poses a little difficult to install them over the doors. Maybe this happened because of the different shape. Thus, we recommend you to use it only sliding windows in quantity of more than one to have proper safety. Even if you greatly slammed the windows over them, they will stand still without damaging the doors.
Among all the window locks with the key knob, it is probably the best because the key has great design. We compared against the other similar locks, and even you slam the window hard, the lock stays which is not the case with other locks. And performs same in almost all types of frames.
5. 3M Adhesive –Best For Child Proofing
- Easy Install Child Safety Lock for Sliding Doors with Pre-applied Double-sided Adhesive. No Tools Or Drilling Needed
- One-hand Use Sliding Glass Door Lock, Simply Lift Both Side Wings To Lock And Simply Fold Down Again To Unlock
- No More Access To Your Clothes In The Wardrobe. Reliable Pet & Baby Proofing Child Safety Lock For Sliding Doors.
This is a transparent sliding window/door lock by Safetynex in a set of 4. There is no requirement of any tool as it can be easily installed with a 3M adhesive tape. Its unique style attracts everyone. However, we are also impressed by its performance after testing. It is made up of plastic material of ABS quality that easily sticks to the surfaces like wood, glass, aluminum, and plastic as well. The design is similar to a rocket and needs to slide the side wings for locking position. It is perfect if you want to baby proof your house.
To remove it, use any dental floss brand or a similar kind of thread and slide it behind the lock. Then, take off the frame. After that, clear the peel residue either with your hands or take some kind of cleaning material to remove leftover. As it is a plastic material, so the finish will not be that durable. There may be chances of breaking it off if you put a little bit more pressure over the locking wings. So, there is a need to handle it gently for long term use. The advantage of having this lock is multitasking ability to use it in different areas.
We recommend this window lock only if you want to use it as part of baby proofing. If you want something sturdier to protect against the intruder or any other purpose go for locks that use knobs and made of durable metal.
6. Burglabar 2 Pack – Best For Patio Door
- Door & window locks: The Burglabar is a unique self-locking hinge lock designed to offer additional home security from a...
- Safety at home: Our window and door latch lock provides additional safety while you are home and keeps your home safe...
- No tools needed: Our Burglabar installs quickly and easily without tools and its crystal-clear design blends in with...
It is a multipurpose lock that comes in a package of two and can be used for sliding patio doors, windows or normal doors. The material is plastic and made of LEXAN with a special 3M adhesive for easy installation. The design is crystal clear transparent and looks unique among other locks. Moreover, it was built in the USA with a self-locking hinge. With the help of adhesive, you can use it on different surfaces. The description says that it can easily fit in between the surface if your pinky finger fits in there.
As it is provided with a self-locking hinge, it won’t fall off easily. It is self-reliable and gives a stable solution. So, whenever you are not at home or want to secure your old ones, children or pet, then you can use this sliding lock on the windows or doors. However, the adhesive used may damage the surface. It also depends upon the type of surface you will use to apply it. Also, you need to handle them with care as the material is plastic.
If you have different types of windows at home, you want window lock that can fit any type of window or door. There is no other multipurpose lock that can compete with Burglabar sliding window lock.
7. Ofun – Best Adhesive Option
If you are somewhat more creative and looking for another unique style design, this sliding window lock may fit your needs. It comes in a set of 4 with two strong 35×55mm adhesives on each lock. As usual, it also does not require any tools for installation. Moreover, the product comes with 12 months warranty as well as 30-day money-back policy in case of any defect. The design is similar to a small rail and easily adjusted with adhesive.
It may have not been that durable as aluminum locks because of the material is plastic. So, there are chances of breakage if more pressure is applied over it. But the warranty assures us with its satisfactory quality service. You need a lot of force to break it off. Its unlocking is a bit different from other locks but is easy.
Ofun Sliding Glass Window Locks is a unique product which was suggested by our expert. If you are looking for an adhesive based sliding window lock, we suggest you go for it. But the price is little high compared to other adhesive sliding window locks.
Buyer’s Guide – What To Consider?
Windows or doors are favorite burglary entry or exit points. Even if you have properly secured your windows, having something portable will let you feel more secure. However, there is no such variety in sliding window locks and latches to choose from. So, the job is pretty easy to let you find out the best one. But before buying, have a look at the points given below to grab more info.
1. Material Quality
Material quality is a must to be considered a factor, even in any kind of purchase. If we talk about sliding window/door locks, they usually come in two types of materials i.e. plastic and aluminum. Any buyer would go for aluminum build quality but going for plastic is not bad if it’s strong plastic. This is because with applying lots of force, chances to break the lock is with both the materials. So, do not take them as your primary lock instead use them as a secondary lock for further safety. In our list, we recommend you Lion Locks Aluminum Sliding Door and Window Lock as it is one of the most durable security lock for windows.
2. Ease of use
Often, users complain about the complex usage of sliding window/door locks. This is why we have come up with the locks that are simplest to be used by a novice customer. So, what we have considered getting this feature? The answer is simple. It’s the design and opening/locking mechanism. They should be easy to understand and should also nit consume your lots of precious time.
Efficiency comes with the proper size. This is why you are asked to look for the size requirements of your window/door. For that, you can check the thickness of rails at top or bottom or in case of a door, you can see for the overlapping distance. It will help you to go for your right measurements. If the lock is not of the correct size, it will be either too tight or too loose and not provide any safety to your home. Most of the times, these small window locks are intended to be bought to prevent the pet or children from going outside. In this case, you must hide the installation process from kids as they may simply learn the technique.
The price range varies depending upon the type of lock, the material used in it or other top qualities that make it expensive. Also, there are a different number of locks you will get in each package which also impacts the price of the product. As per your budget and quality preferences, you can choose from the best price range given above. If the price is high, the reason is the quality behind it. So, make sure to consider that also while making a purchase decision. Maxdot is the most budget-friendly option on our list.
They work on the simple principle, which is to block the sliding of the window. The guide in which the window frames moves is blocked buying installing the locks.
Both works perfectly, but metal has advantage over the plastic. It is more durable and can withstand even wet weather. This plastic may break if some kind of heavy force is exerted on it.
If you ask which is better, then answer depends on the use. If you want to baby proof the windows at your home, adhesive locks may do the job. But you are more concerned about the intrusion, and then we would advise you to go for the metal knob locks.
Most of the sliding window locks lock almost same. Only thing differs is the material it is made up of. Since you will be buying several at once, make sure you buy packs rather than individual units. Because that way you will save money. Also before buying, make sure you know how you want to use the sliding window locks so that you can find the right kind of locks.