Windows with UV sun-protection film on a building façade – Kastner GmbH
HomeServicesUV Sun-Protection Films

UV Sun-Protection
Window Films

Up to 3 °C cooler rooms, 99% less UV and discreet privacy – with no rebuilding and without darkening the room.

UV Sun-Protection Films

Cooler rooms. Without air conditioning.

When the summer sun beats down on your windows, every room heats up – and so do your cooling costs. Our UV sun-protection films are applied directly to your existing glass and reject much of the sun's energy before it even enters the room. The result: noticeably cooler rooms, protected furnishings and less glare – with daylight left almost unchanged. No rebuilding, no new windows, installed in just a few hours.

Up to 3 °C cooler

The film reflects and absorbs much of the solar heat before it builds up indoors. Less overheating in summer, noticeably more comfortable working and living – day after day.

99% UV protection

Blocks up to 99% of UV radiation. That protects not only your skin, but also keeps floors, furniture, textiles and merchandise from fading.

Privacy

During the day you look outside undisturbed – prying eyes stay out. A subtle, slightly grey tint is all it takes: no darkened room, no mirror effect.

Your benefits

What the film does for you

A small measure with a big effect – every square metre of window pays off here.

Less heat

Solar heat is rejected before it warms the room. No more stuffy afternoons under the skylight.

Fade protection

Wood floors, furniture, displays and textiles keep their colour – UV is the main cause of faded surfaces.

Less glare

No more squinting at your screen, no more closed blinds. Pleasant, even daylight stays.

Save on costs

Less heat gain means less cooling. The film pays for itself through lower energy bills – year after year.

Performance in numbers

Tangible results

up to 99%
of UV radiation blocked
up to 80%
of solar heat rejected
2–3 °C
measured drop in room temperature

50–70% of daylight is retained. Values vary by film type, window orientation and glazing – we'll recommend the right film for your situation in a personal consultation.

I've been using the film myself – the room is noticeably cooler, a good two to three degrees less. I can still see outside without obstruction, and thanks to the light grey tint, prying eyes stay out. For me it's the easiest upgrade with the biggest effect.
Tom · Kastner GmbH
Applications

Where the film pays off most

Office & home office

Cool heads and glare-free screens even in south-facing sun.

Conservatories & skylights

Where heat builds up the most.

Shops & display windows

Protect merchandise from fading, keep displays fresh.

Practices, law firms & waiting rooms

Discreet privacy in full daylight.

Living spaces with large glass fronts

Comfort without dark curtains.

Installing UV sun-protection film on a window – Kastner GmbH

Measure, produce, install

As with any wrapping job, we handle the entire process – you don't have to worry about a thing and you'll benefit from the very first sunny day.

1

Measure

We measure your windows on site and recommend the right film for orientation, glazing and use.

2

Produce

The film is cut to size for your panes – for a clean, edge-to-edge result.

3

Install

Our team applies the film cleanly and bubble-free – in a few hours, with no rebuilding and no mess.

Have your windows measured for free

Tell us which rooms are heating up – we'll advise you personally and provide a no-obligation quote. We respond within 24 hours.

Enquire now → +49 (0) 84 42 / 92 53 - 0