Frequently Asked Questions
One-way privacy window films do not work at night. In particular, people will be able to see inside if the room is illuminated. If you are looking for a one-way window film that works at night, you could try Contra Vision® White 24/7 Concealed Vision™. This creates a similar one-way vision effect as net curtains during daytime. At night time, the window film is partially illuminated by the light from inside and this helps to obscure the view. However, the positioning of lighting inside is important. The more diffuse, the better. Curtains and blinds are still needed if you want strong privacy. If you need strong 24/7 privacy, you need a frosted or stained glass product which also block the view for people inside the room.
The objective is to have as much light as possible shining onto the window film from the inside. The window film is translucent and will glow slightly when light passes through it, which helps to obscure the view through the window. Ideally the light sources should not be directly behind the window to maximize the effect – e.g. light bulbs should be covered with shades to prevent point sources of light from being outside the field of vision. Night time privacy is improved by shining spot or flood lights from the side or below the window – see image below.
The sheets are available in standard sizes and we do not offer a “made to measure” service.
Most of the products can be applied to the inside of windows. Many of the products can also be applied to the outside of windows if you want the product to be more strongly visible from outside. One exception is the Mirror product which can only be applied to the inside surface of a window.
Perforated window films are very easy to install. Most people can do this. However, it is slightly more challenging to install non-perforated window films. With proper preparation, it is not difficult.
There are professional window film installers in most areas. Try looking on Google using a search term such as “window tinting near me”. Be warned – the cost to install the film is likely to be greater than the cost of the film itself!
Contra Vision perforated window films are very easy to remove for up to 3 years and shouldn’t leave any residue. After that, it depends on the extent to which the product has been exposed to bright light. Acetone (nail varnish remover) can be used to help the process.
The prices of each product and size are available via our online shop. Click on the size you need, and the price is updated above this.
We only accept orders online. We do not have the facilities to accept payments over the phone.
A good way to do this is to create a scale drawing of your window either on paper or on the computer. You can then create a scale “cut-out” of the window film sheet and test how many of these you need to cover the entire window area.
Customers in Europe: https://contra-vision.myshopify.com/collections/privacy-window-films
Customers in North America: https://cvna-ohio.contravision.com/collections/privacy-window-film
Customers in Europe: https://contra-vision.myshopify.com/pages/delivery
Customers in North America: https://cvna-ohio.contravision.com/pages/shipping-information
We offer a range of privacy window film products. Some of the one-way privacy window films are perforated (with holes) to allow good see-through. Contra Vision® Mirror™ is non-perforated if this is preferred.
Contra Vision perforated window films offer around 70% UV protection, which depends slightly on the time of the year and the positioning of the sun. Our non-perforated products offer over 99% UV reduction.
Yes, it will reduce the heat inside buildings on warm days and help to reduce air conditioning costs. On winter days it will also make the room cooler but not by much (the sun does not have as much impact during winter months).
Each product has a different expected lifetime. A perforated product on the outside of a window has a 3-year recommended lifetime. Products on the inside of the window will last longer.
One-way vision privacy window films can be used on side and rear windows of cars. A car wrap should never be done on front windows! If you plan to use the product on a car window then we advise you to state this when ordering so we can ensure you get the right product.