Based in Birmingham, Guardian has been designing, supplying and installing residential & commercial films across the UK for over 15 years. With Chas, Constructionline, Exor, Builder’s Profile & Safecontractor accreditations, Guardian Window Films are approved installers for all of the world’s leading window film manufacturers.

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Welcome to Guardian, one of the leading window film specialists in the UK. As accredited dealer/installers for all of the major window film manufacturers in the world, we have access to the widest range of quality tested and approved products and will help you find the very best solution to your particular need(s).
Nicola Enright, MD


What is it?

3M Thinsulate Window Film is a specially designed low emissivity insulating window film. Emissivity is the amount of thermal radiation naturally expended by an object; the lower the emissivity, the less heat an object radiates. By providing 3M Thinsulate Window Film we can provide residential & commercial properties with specialised insulation window film, which can help retain warmth in the winter, and cool air in the summer.

How does it work?

Thinsulate Window Film has a unique design and has the capacity to both reflect heat in warm weather and retain heat in the cooler months throughout the year. Thinsulate Window Film can increase the insulation performance of a standard single-glazed window and can replicate the insulation effect of a double-glazed windows, and even nearly the standard of triple glazing.

Need Help with Thinsulate Window Film?

Please call us on Freephone on 0800 077 8403 or contact us via email today!

Benefits of Thinsulate Window Film

There are many benefits of fitting 3M Thinsulate Window Film. All of the Thinsulate Films which we supply have a warranty of 15 years and are applied internally. This means we can carry out the installation of the Thinsulate film with minimum disruption. As these window films are virtually invisible, they don’t interfere with the clarity of incoming light into the property and do not compromise the aesthetics of the building itself.

For offices…

It is known throughout the industry that offices and other commercial properties lose around 40% of their heat through underperforming windows. Thinsulate window film can increase the insulation performance of commercial windows by around 40% – a clear contribution to reducing a property’s heating and air conditioning costs!

For listed buildings…

Thinsulate Window Film can be applied to both plain and patterned glass, without compromising aesthetics or efficiency for listed properties. The Thinsulate Window Film which we supply also provides UV protection for antique objects, carpeting and furnishings. This not only can help preserve historical items for listed properties, but it can also bolster modern energy efficiency to the building.

Is Thinsulate Window Film suitable for me?

Thinsulate Window Film is recommended for anyone looking for a convenient and cost-effective way to increase the insulation performance of their property.

For more information about Thinsulate Window Film, you can email us, call us on 0800 077 8403.

We only ever specify the highest quality commercial window film, tested and approved to British and European Standards.

  • We are accredited dealers and installers for all of the leading window film manufacturers.
  • We have Construction Line, Builder’s Profile and Safe Contractor accreditation.
  • If you are after a no obligation quote for your commercial window film installation please give us a call free on 0800 077 8403 or email us here.