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One Way Privacy Window Film

Exceptional Daylight Privacy


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Exceptional Daylight Privacy - Alternative To Net Curtains

What is oneway privacy window film?

Used as a great way to deter people from seeing inside your home, it's a perfect solution for external privacy, but it's not recommended as a solution for room-to-room privacy.

One way window film is often called mirrored film, daylight privacy film, and daytime privacy film. Many options are available, such as 3M Dichroic and Contravision privacy window film, which are both not mirrored.

WindowTreat is transforming privacy in homes across the UK with beautiful one way window films. Consider privacy window film as the true alternative to net curtains.

Night Vision 25 One-Way Privacy Window Film on Bi-Fold Doors

Frequent Questions We Get Asked:

How does one way privacy window film work?

When you have walked through customs at an airport then you have probably walked past mirrors on the walls. This is a one way window film. Another example is the line-up in the police station with a witness identifying the potential culprit to a crime.

The witness or customs officer is in a poorly lit room behind the window. The customs control or line-up area at the police station is significantly better lit.

The mirror finish on the film means that only a reflection is visible.


Does one way window film work during the day and night?

The short answer is no, one way window film does not provide any privacy at night, as it works on light balance, if it's lighter inside your home than it is outside, it will not provide privacy.

However, put up some external lighting and keep the lighting dimmed inside and it will work. Street lighting could be your source of external lighting. The key is that the external light level is higher than the inside.

Many customers install our electric blinds to achieve 24/7 privacy. Many of our electric blinds are so advanced that they can close automatically at dusk. Daylight privacy film and electric blinds give the impression that you are in, which is what we call ‘applied occupancy’. Protect your home.

Do electric blinds fit your requirements more? Visit our electric blinds page here.


Will one way privacy film for windows darken my room?

Yes. However, your eyes and brain are amazing. Your eyes dilate when space is darker enabling you to see more light. What this means the reduction in the light you see is much less than the reduction in measured light. Check out the privacy window film knowledge centre article. If you have small windows then you can go for a lighter film because the inside will be darker.

If you have large windows then you are getting a lot of natural light and will need to go for a darker film.


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one-way window film on bi-fold doors



What is the thermal compatibility test?

Window films absorb heat. Some films absorb more heat than others, which increases the thermal stress on the glass. We calculate the thermal stress to ensure that the recommended film stays below the break strengths of the glazing.

Therefore, we are likely to ask you about the type of glazing and kitemarks in the corners of the panes.

This due diligence is what you should expect from a very professional window film company. Book your call back with WindowTreat now, and a window treatment specialist will talk you through getting the right solution that is right for your glass.

Note that external films are unlikely to cause thermal stress on the glazing so there is always a way.


What are the different one way privacy window film solutions?

Here at WindowTreat, we believe that getting you the best privacy solutions is key to enjoying your home knowing that you are not overlooked.

Solargard Sentinel DX35 OSW

On the cusp of what is possible with an external one way privacy window film. Thermal stress is an important consideration on triple glazing, so the most viable option is going externally.

Solargard Sentinel DX35 OSW lets in more natural light and is less reflective than other options which is vital to preserving the precious view out towards the Isle of Wight.

About thirty films were analyzed for appearance, effectiveness and thermal stress before selecting Solargard Sentinel DX35 OSW.

The Velux window backlights the triangular architectural window, making it difficult to have perfect privacy in this room. However, the owner was delighted with the extent of the privacy available across the whole of the property.


privacy window film

Before 7 After of Solargard sentinel DX35 one-way privacy window film

3M Night Vision Privacy Window Film

The overwhelmingly popular choice is 3M Night Vision 25 because it is subtle and has no reflective finish internally. However, if the glazing is modern double or triple glazing then it needs to be toughened glass. If the room is a dual aspect then consider 3M Night Vision 15 due to the extra lighting within the room.

Silver 20 and Silver 35 reflective window film are budget solutions and provide wonderful daylight privacy. However, they are not subtle because of their highly reflective finish, with a mirror appearance, especially the darker Silver 20. At night, there is a strong internal reflection so it will look mirrored when you lookout. Ghost reflections can appear internally on dull days.

3M All Seasons 35 is a great choice if solar heat gain is an issue. Or go externally with 3M Silver 35 External.


Silver 20 mirrored one-way window film


Silver 35 External One Way Privacy Window Film

Silver 35 External Privacy One Way Window Film reflects the sky, the trees and the buildings surrounding your home. The effect can look stunning. WindowTreat knows what one way window film will work best for your home, get in touch with WindowTreat to learn about one way privacy films for windows.


Silver 35 One-Way Privacy Window Film


Contravision one way privacy window film

Contra Vision provides a solution that met several additional needs. The client had considered using reflective window film but that would not have been in keeping with the rustic nature of the property and would prove dangerous to the abundant birdlife in the area. Contra Vision offered the most aesthetic and environmentally friendly answer to these issues.

Contravision one way privacy window film


Solar Reflective Privacy Windows For Commercial Buildings

This beautiful commercial building does an excellent job at creating privacy for the staff on the inside of the building. Reflective windows help protect the privacy and dignity of the staff on the inside, and there is no reason we can get this same privacy and protection of dignity with our window films.

Talk to Steve, our window treatment specialist to learn more about privacy window film.

There are other products that could be used to create privacy, we have Dichroic. Dichroic window film is a beautiful addition to your windows, as it creates shadows and reflections of beautiful colours all over your home, whilst creating privacy from the residents of the home. Click here so that you can learn more about Dichroic window film.

There is also Frosted window film. Frosted window film creates amazing privacy on your windows, although you cannot see out of your windows if you have frosted privacy window film in your home. Click here to learn more about frosted window film.

privacy windows


Case Study


Traditional Cottage

This beautiful cottage has one way window film installed, ensuring the privacy of the occupants.

The privacy window film beautifully compliments the look of the home from the exterior also, so it looks good, whilst maintaining that sense of privacy and security that is desired by many. WindowTreat can help to ensure your privacy with one way privacy window film.


Tanners cottage


The Modern Alternative To Net Curtains

Our one-way privacy window film is the true alternative to net curtains, providing you and your family with the ultimate sense of security and privacy, without sacrificing the view out of your home. Because even with net curtains your view out is obscured, whereas, with privacy window film your view out is as clear as ever. WindowTreat offers only the best privacy window film and we find the perfect one for your needs and preferences. 

Get into contact with WindowTreat today and find the perfect privacy solution for your home.

one-way privacy window film the alternate to net curtains

The 'Safe Pair Of Hands' For Your Privacy Window Film

WindowTreat are your go-to window treatment specialist for all your window treatment needs - our installers will leave your home tidy and have your privacy window film looking great!

Trading Standards Approved For Electric Roof Lantern Blinds

The Buy With Confidence Scheme operated by Trading Standards sets the bar high for your electric roof lantern blind installation. Trading Standards conduct tests on our customer-facing processes to ensure that you can move ahead with the right supplier for your electric roof lantern blind.

WindowTreat are trading standars approved & part of the buy with confidence scheme

Impeccable Electric Roof Lantern Blind Installations

Our electric roof lantern blind installers are the elite in the industry, They take immense pride in their work. You will find your electric roof lantern blind installer polite and you will see Henry the Hoover helping keep your home clean throughout the electric roof lantern blind installation.

WindowTreat have been nominated for many different awards

5-Year Warranty On Electric 'Roller' Roof Lantern Blinds

This is the industry-leading warranty for roller versions of electric roof lantern blinds. We believe in the high quality of the WindowTreat Electric Roof Lantern Blind.

WindowTreat offer a 5 year warranty with our electric roof lantern blinds

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