Nothing lasts forever

Posted on - January 9, 2023

Well – except diamonds. Obviously.

But, in general most stuff does wear out…

At Durable we specify, supply and install some of the best performing, highest quality window films around.

The technical excellence and overall benefits are astounding.


Even the best has its limitations.

And there are always incidents, accidents, environmental changes and structural influences which can affect the efficiency of your window film.

With the best will in the world – eventually things begin to break down.

The health of your window film is very important.

To be effective and fit for purpose it needs to be performing as intended.

High Performing products

All of our film is top-quality, high-tech material — and, professionally installed, should provide excellent benefits for years.

Most films from Durable have a 12 year warranty and a 15+ year working life, however this is for the internally applied films the new external films have a 7 year warranty and a 10 year working life as they have to work harder against UV attack and the elements etc.

Pre 2014 the films would have had a 5 year warranty and a seven year life and should be checked.

External window film

Over the past 15 years many schools have had safety window film applied to the external face of glass.

Maybe the glass was not accessible from the inside or the double-glazed window risk is from the outside [playground/walkway] — and this, as we mentioned, does have a shorter working life than its internal stable mate.

Extremes of failure

This school had their windows treated with an external safety film in 2008.

You can clearly see the degradation of the film.



It’s very apparent.

It’s hard to see through for sure – but more importantly it will not be offering the same safety impact protection it once did.

This doesn’t just apply to schools of course.

Colleges, Universities, Hospitals, Council and Public Buildings, Offices, Warehouses, Factories — anywhere there is glass that has been treated with window film may need checking.

Get a full Glass Audit from Durable

Durable are the experts in window film.

We’ve been working with glass for over 50 years.

We are the oldest window film company in Europe.



Our advice

External safety film fitted before 2010 should be checked to see if there is a visible degradation.

Films on the South and West elevations of buildings are most vulnerable and therefore should be checked sooner.

If in doubt, please call Durable for a free evaluation.

We can offer a complete Glass Audit — to check the health of all your glass windows, doors and partitions.

This detailed survey gives you a full report providing you with all the information you need to make sure you are safe, compliant and legal.

Make sure your glass is safe.

Call us today

Durable — good with glass

0118 989 5201 |