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The UK's bestWindow Vacs2022 Review

What To Look For in a Window Vacs

From researching different models, I’ve got a couple of tips for finding the best window vacs. Firstly, look for a window vac that has a battery life of at least 30 minutes. It might not sound like that long, but remember that you won’t be using the vacuum continuously. If you think you’ll need more time than this, there are some models that last up to 60 minutes, as you’ll see in the list below.

To help make jobs easier, choose a window vac with multiple head attachments. If they don’t come included, at least check whether there are compatible attachments that could be purchased later down the line if required. A 280mm suction head is the standard size, but a smaller head (around 170mm) will allow you to clean tighter spaces.

I would say that different head attachments are invaluable for cleaning different size windows – particularly useful for bathrooms and sash windows.

Now a note on maintenance – it’s easier to clean the window vac if it has a removable water tank. The water tanks collect the dirty, waste water from the windows, so they can get a little grimy over time. Many of the best window vacs will have a water tank that can be removed for emptying, making it easier to clean. 

Finally, you might want to look out for a window vac with some additional cleaning accessories included. Some models come with spray bottles and microfibre pads which can make it easier to achieve a streak-free finish. These generally offer better value for money as well. 

After comparing several window vacs, I’ve chosen the Bosch GlassVAC as my top choice. It has a rechargeable lithium-ion battery that has a battery life of approximately 30 minutes (enough to clean up to 35 windows). It comes with a standard cleaning head and a smaller option, as well as a spray bottle and Velcro-backed microfibre cloth.

For more details about this window vac, as well as some other options (including one with a 60-minute battery life), check out the reviews below!

What Are The UK's Best Window Vacs?

best-window-vac Bosch GlassVAC
  • Long battery life
  • Small and large heads included
  • Micro USB charger
best-window-vac Vileda WindoMatic Window Vacuum
  • Two suction levels
  • Long battery life
  • Perfect if you're on a budget
best-window-vac Beldray BEL0749 Cordless Window Vac
  • Compact design
  • Lightweight
  • Affordable window vac
best-window-vac Kärcher WV5 Window Vac Incl. Accessories
  • 100 ml waste water capacity
  • Small and large heads included
  • Streak-free shine
best-window-vac AEG Window Vac
  • 60 min battery life
  • Good value for money
  • Quiet to use

Read Our Window Vacuum Reviews

Long battery life, Small and large heads included, Micro USB charger,

Bosch GlassVAC

best-window-vac Bosch GlassVAC
  • Long battery life
  • Small and large heads included
  • Micro USB charger
Save 31% on Amazon

Bosch GlassVAC Review

Bosch is certainly a well-known company when it comes to making quality tools, and their GlassVAC cleaning system is another well-thought-out offering from the German corporation.

There are both positives and negatives to its overall design, but in terms of performance it is capable of producing a streak-free finish on glass surfaces, which is ultimately the main aim when using these vacuums.

Two differently-sized vacuum heads come included, which facilitate the cleaning of large and small windows, as well as a spray bottle with a Velcro-backed microfibre cloth attachment.

Using the vacuum effectively takes a bit of trial and error to begin with, but it is possible to avoid creating streaks. The appearance of streaks is greatly reduced by starting with a very wet window and overlapping by 10 cm on each stroke, as well as using more detergent than you might expect.

Overall, the quality of the whole unit seems robust, and the handle has an ergonomic shape. However, it’s perhaps not quite as well designed as the handle on the Kärcher Window Vac, as the Bosch doesn’t completely enclose your hand. This can lead to feeling like you might drop it when cleaning at more awkward angles, like the exterior of upstairs windows, although there is a wrist strap provided.

The vacuum’s water tank has a capacity of 100 ml, which is comparable with other window vacs in the same price bracket.

It has an integrated lithium-ion battery which is simple to charge using the included micro-USB charger. The battery lasts for approximately 30 minutes of continuous use, and has a battery indicator to warn when it needs to be plugged in.

Whilst the suction and power is relatively good, it doesn’t reach fully to the edges of the larger vacuum blade. For this reason, such a large overlap is necessary when drying the surface, as otherwise streaks can be created by the water residue.

Even so, a good finish can be produced one the technique is in place, and the Bosch is one of the best window vacs for cleaning windows of different sizes thanks to the attachments included.


  • Capable of creating a streak-free finish when used with the correct technique
  • Good build quality with a well-moulded plastic body
  • Different size attachments make it easier to clean both small and large windows
  • Reasonable battery life of 30 minutes


  • Spray attachment is very small so needs frequent refiling
  • Handle design does not always make it feel secure to use at awkward angles e.g. cleaning window exterior from inside
  • Suction does not reach the edge of larger blade so large overlap is required
  • Removing any final streaks may need to be done with a cloth after vacuuming
Two suction levels, Long battery life, Perfect if you're on a budget,

Vileda WindoMatic Window Vacuum

best-window-vac Vileda WindoMatic Window Vacuum
  • Two suction levels
  • Long battery life
  • Perfect if you're on a budget
Save 13% on Amazon

Vileda WindoMatic Window Vacuum Review

This Vileda WindoMatic Window Vacuum is particularly useful for cleaning up condensation in bathrooms. It can be also be used for window cleaning too, but there’s no spray bottle included for washing the windows first.

The construction is very lightweight, and it has an enclosed, ergonomic handle which makes it comfortable to use. As a unit, it’s sturdy, with no separate parts or components; the only bit that disconnects is the 100 ml water tank so that it can be emptied and cleaned.

It has a good battery life and won’t often need charging, especially if only being used for a few windows at a time. When it is time to charge, the WindoMatic simply hooks up to a mains charger.

Although it has two power modes, there isn’t much demand for the lesser of the two. Even the high-power mode can lack strength sometimes, although it will still get the water up eventually. Occasionally, it pushes moisture down the window instead of successfully vacuuming as it goes, so the water needs to be sucked up from the bottom of the pane – which it manages to do.

The flexible neck improves how well the WindoMatic can get into corners, but it still doesn’t get all the way to the edges. There’s only one blade included, and it’s 27 cm long, so it’s a better choice for people cleaning larger surfaces as opposed to smaller windows.

Overall, this is one of the best window vacs for removing condensation because it is light and not overly expensive. It can also be used to clean windows, even though it doesn’t come with any of the accessories of higher-end models, but the process may take longer.


  • Lightweight which makes it easy to use quickly every day
  • Good battery life - will last a long time if only used for a couple of windows daily
  • Works well to remove condensation from windows and shower screens
  • Robust construction without any small removeable components (except for the water tank)
  • Water tank can be cleaned in the dishwasher


  • Despite having two power modes, the low-power mode is unlikely to be used often
  • May push water to the bottom of the window instead of vacuuming as it goes
  • No smaller blade provided which would be useful for smaller windows and awkward areas
Compact design, Lightweight, Affordable window vac,

Beldray BEL0749 Cordless Window Vac

best-window-vac Beldray BEL0749 Cordless Window Vac
  • Compact design
  • Lightweight
  • Affordable window vac
Check Price on Amazon

Beldray BEL0749 Cordless Window Vac Review

If you’re after a window vacuum that will get the job done without being too expensive, the Beldray BEL0749 Cordless Window Vac offers a good middle ground. It works sufficiently well to be a worthwhile purchase, without leaving your bank balance in tears.

As a cheaper model, it has all the basic functions without any additional mod cons. There’s one 28 cm blade, an ergonomic handle with easy-reach power button, and a 60 ml water tank.

These features, and its reasonable performance combined with the price, make this one of the best window vacs in terms of value – it will clean off condensation, as well as dry off windows, but you may also need to have a cloth to hand as well.

It still reduces the amount of time spent drying windows/mirrors/tiled surfaces compared to using a cloth on its own, but the vacuum isn’t always able to clean to the bottom of the window as the sill gets in the way. This is where the cloth comes in, to collect the water at the bottom.

It also shouldn’t be turned horizontally, according to the instructions, so there’s no way to get around the previous issue.

Overall, it’s a good choice if you’re after a basic model. It’s capable of cleaning up condensation, and can be used to clean windows too. However, it may leave a few streaks that need to be buffed out with a cloth, and it also isn’t possible to remove the water tank entirely, so it’s hard to clean, which may cause problems over time.


  • Efficient at mopping up water marks and removing window condensation
  • Lasts around 30 minutes on one full charge
  • Doesn’t leave streaks or marks
  • Good value option with a simple and basic design


  • Water tank cannot be removed which makes it difficult to clean well
  • No smaller blade included so not suitable for cleaning small windows
  • Water reservoir is just 60 ml and fills up quickly so needs regular draining
  • If water pools at the bottom of the window, it is difficult to reach with this vac
  • Can't be used horizontally
100 ml waste water capacity, Small and large heads included, Streak-free shine,

Kärcher WV5 Window Vac Incl. Accessories

best-window-vac Kärcher WV5 Window Vac Incl. Accessories
  • 100 ml waste water capacity
  • Small and large heads included
  • Streak-free shine
Check Price on Amazon

Kärcher WV5 Window Vac Incl. Accessories Review

A lot of comparisons are often made between the Bosch GlassVAC and this Kärcher WV5 Window Vac. Whilst there are a lot of similarities, the two primary differences seem to be that the Kärcher has a slightly longer battery life, and offers the possibility of changing the battery when it finally bites the dust.

Whereas a lot of rechargeable lithium-ion batteries are encased inside the machine, meaning once they run down for good the tool has to be thrown away, the battery inside the WV5 can be swapped out for a new one.

One charge will last for approximately 35 minutes, which is generally enough time to clean all of the inside windows of a standard house. It also seems to approach the windows with relative vigour, powerful enough for the 100 ml water tank to visibly contain liquid after cleaning one pane of condensation.

A spray bottle with a microfibre cloth attachment comes included, along with two differently-sized vacuum blades. These measure 17 cm and 28 cm across, making them slightly larger than the blades supplied with Bosch’s machine.

Thanks to the enclosed handle, it is comfortable to use when cleaning exterior windows from inside the house, and light enough to manage as well. However, as with most window vacuums, some streaks are often left after use and require buffing out with a microfibre cloth to achieve a fully spotless finish.

Due to the inclusion of two blades, as well as the reasonable battery life and secure handle, this is one of the best window vacs in terms of versatility. The WV5’s blades are slightly larger than those of the Bosch GlassVAC, so it may not be as good for cleaning smaller windows, but otherwise it seems a comfortable and effective tool for both removing condensation and cleaning.

The enclosed handle makes it particularly good for cleaning exterior windows.


  • Two blades included for easily cleaning different-sized areas
  • Changing attachments and emptying water tank takes just a few seconds
  • Lasts around 35 minutes on one full charge
  • Handle feels comfortable and secure enough for cleaning exterior windows from inside
  • Comes with cleaning concentrate included so you can start cleaning straight away


  • Microfibre cloth may still be required to buff out some streaks
  • When reaching the bottom of the window, the body of the vacuum gets in the way and makes it hard to get all the water
  • Water may pool at the bottom of the windows so a small cloth is needed to mop this up
  • Charging to full capacity takes a relatively long time - around 190 minutes
60 min battery life, Good value for money, Quiet to use,

AEG Window Vac

best-window-vac AEG Window Vac
  • 60 min battery life
  • Good value for money
  • Quiet to use
Check Price on Amazon

AEG Window Vac Review

If you’re working across large surfaces like bathroom tiles, the battery capacity and blade size of this AEG Window Vac could work together to make the job easier.

With a run time of up to 60 minutes, this is one of the best window vacs featured here in terms of battery life. It’s powerful enough to remove condensation, and clean windows, as well as clear spills on hard-top surfaces.

However, it doesn’t seem to have as strong a suction as some of the higher-end models featured here, and may produce mixed results because of this. Whilst the AEG Window Vac can be used both for cleaning windows and removing condensation, it can lack the power to collect all of the water.

This can cause some water to be pushed around as though it was a normal squeegee, as opposed to a vacuum. For this reason, it’s a good idea to have a cloth nearby to catch any drips.

The water tank is the largest of all the window vacs on this page, with a capacity of 110 ml, so frequent emptying of the reservoir won’t be necessary. However, it is worth noting that some customers have commented on finding it difficult to remove the cleaning blade in order to access and empty the water tank.

One final thing offered by the AEG Window Vac, which is a little whimsical but still worth mentioning, is that it comes in a choice of colours. If a certain theme would go better with your bathroom, you can choose between ‘baltic blue’, ‘aqua spray’ or ‘vivid viola’, purely for aesthetic purposes.


  • Can run for up to 60 minutes from one charge
  • Relatively large blade is suitable for cleaning bigger surfaces
  • Rubber grip is soft and comfortable
  • Can sometimes deliver a streak-free finish


  • You will likely require a cloth to catch any water than isn't vacuumed up
  • Lower power can sometimes cause drips to fall down the window

How to Choose The Best Window Vac

Window vacuums make it easy to clean windows, mirrors, shower screens and remove condensation. Cleaning in this way can be a lot quicker and more efficient than using endless endless cloths or paper towels.

These fun tools work by hoovering up liquid and removing all the dirt from the windows, leaving a glistening, streak-free finish.

If this has piqued your interest, below you’ll find useful information about how to choose the best window vacuum and how to get the most out of it:

Window vacs can do so much more than just clean windows. Here are a variety of ways that a ‘window vacuum’ can come in handy around the home (and beyond!).

They can remove condensation from:

  • Tiles
  • Windows
  • The inside of tents (perfect for keeping dry on camping trips!)
  • Conservatory windows and doors
  • Caravan interiors

And can clean:

  • Mirrors
  • Windows
  • Kitchen worksurfaces
  • Fridges and ovens
  • Shower screens
  • Cars (you’ll be amazed how polished a finish you can achieve!)
  • Greenhouse glass windows
  • Spillages on kitchen worksurfaces or hard floors

Make sure that the blade of your window vac is clean and undamaged, especially when using it on glass surfaces or on more delicate painted materials like the body work of your car.

As mentioned, one of the primary uses for window vacuums is to remove condensation from windows. This can help reduce the damaging effects of damp, particularly in bathrooms, by removing moisture before it can be absorbed by wooden windowsills, shelves, cabinets or paintwork.

It’s also worth nothing that, whilst many window vacuums can be used to clean pretty much any hard, flat surface in the home, some don’t work well horizontally. For this reason it’s worth checking their product specifications carefully before making a purchase.

Most window vacs are powered by rechargeable lithium-ion batteries. In general, these give an average run time of around 35 minutes.

Some models, such as the AEG Window Vac can get around 60 mins of running time from one charge. This can be useful if you have several cleaning jobs to be doing in one day, although normally 30 minutes is more than enough for the majority of jobs.

Batteries with a longer run time will generally take longer to recharge – anywhere up to two hours.

Also worth being aware of is that there are two different styles of rechargeable battery in a window vac: batteries that can be removed, and ones that are integrated into the machine.

If the battery is integrated into the machine it will be charged via a micro-USB cable or mains adapter. Once the battery comes to the end of its life, you will have to buy a new window vac.

Some products, such as the Kärcher Premium Window Vac, have batteries that can be replaced. You can buy replacement lithium-ion batteries without having to replace the whole machine.

What’s more, if the battery is removable, you can even interchange it with another charged battery when the first one runs out of power. In this way, you can use the window vac for an extended period of time without having to stop to wait for the only battery to recharge.

It can take a bit of trial and error to work out how to most effectively use a window vacuum. Whilst all styles are a little different, there are some common steps to follow across the board. Once you get the hang of it, it’ll be easier to produce a streak-free finish on windows and mirrors.

  1. First you need to mix a cleaning solution. This might be a window-specific cleaning solution, or warm soapy water. Experiment with different cleaners to find which delivers the best results with your vacuum.
  2. Clean the surface using this solution in a spray bottle with a microfibre cloth – some window vacs come with these items provided. You can also use a sponge or other application method. Most importantly you should make sure the surface is wet, not just damp. This can make all the difference when looking to avoid streaks.
  3. Choose the correct vacuum head for the job. Some vacuums come with multiple heads so you’ll be able to choose between a smaller and larger blade. You may find that one of the blades produces better suction than the other, which will make it less likely to create streaks.
  4. Turn on the window vac and glide the vacuum smoothly over the wet surface in downwards motions, sucking up the water.
  5. To remove any streaks after using the vacuum, take a dry microfibre cloth and wipe it in a straight, downwards motion.

Tip: If you can hear a squeaking noise as you vacuum the surface, the surface isn’t wet enough. This can lead to streaks. You shouldn’t hear any squeaking when using the window vac.

Here are a couple of extra tips for achieving a streak-free finish on windows and mirrors.

Post-Clean Buffing

As mentioned above, buffing the surface with a dry microfibre cloth is the best way to ensure a perfectly streak free finish. Don’t go in circular motions, simply run the cloth over the surface in the direction that you used to vacuum.

Cleaning Solutions

When cleaning windows or surfaces you can use a variety of cleaners. The best ones to use with a window vacuum are:

  • A solution of water and washing up liquid
  • A diluted white vinegar solution
  • A glass cleaner made specifically for windows or the surface you are cleaning

Don’t feel that you have to go out and buy something special, washing up liquid and vinegar are extremely effective at cutting through grease.

How Often to Clean Your Windows

If you like using your window vac on your outside windows, to keep them clean and shiny, you’ll want to be cleaning them at least 2 – 3 times per year. Of course, you can clean them more often than this, but for typical residential properties which aren’t by a train line or main road, this should be sufficient.

Clean Condensation Every Time

If condensation is a big problem in your bathroom, it’s great to get into the habit of using a window vac after every shower or bath. Cleaning the condensation from the shower, bath, mirror and sink will dramatically help reduce how much water is left to evaporate into the room.

Window Vac FAQs

Some window vacs come with two heads, a small one and a larger one. This is handy if you want to use the vac for a variety of cleaning jobs or have small-paned windows. Window vacuums with one blade will work well on larger windows and large areas like shower screens and tiled walls. If you need to clean smaller areas, then it will likely be worth paying extra for a window vacuum with several blade heads.

Some window vacs also come with a spray bottle that has a microfibre cloth attachment. This makes it easy to apply cleaning product evenly and can help with lifting off stubborn stains and marks.

If your window vac doesn’t come with one of these, you will need to use a sponge or separate microfibre cloth to wash the window before using the window vacuum. Ensuring that detergent is applied evenly can be more difficult without the help of a spray bottle, but it’s not impossible.

Most window vac manufacturers sell a detergent to use with their products. These should be designed to produce a streak-free finish whilst using their specific machine.

However, there are other options. You can also use a solution of washing up liquid and water, a diluted vinegar solution, or a glass/mirror detergent (depending on the surface you are cleaning).

Make sure that the surface is sufficiently wet before starting to use the vacuum. If the vacuum is squeaking, the surface isn’t wet enough. Vacuum in straight, downwards motions. Once finished with the vacuum, take a dry microfibre cloth and wipe it in downwards strokes on the surface. When going over with the microfibre cloth, pay special attention to any lines left by the edge of the window vac.

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