Europe’s leading window brand Internorm is dedicated to providing high quality, low energy window and door systems.


Triple glazing is becoming increasingly popular and there’s no reason why it shouldn’t be considered across all project types. Not all window companies have designed their windows to be triple glazed from the outset, so it pays to do your research when choosing windows.

open plan room with wooden table chairs kitchen island

Image: Internorm

A product for every project

Coming from a company with 90 years of experience, the award-winning Internorm triple-glazed products are made to specification and provide exceptional technical innovations combined with superior energy, acoustic and security performance.

Internorm’s extensive offering includes timber/aluminium, PVCu and PVCu/aluminium windows, ‘lift and slide’ as well as stylish entrance doors. In other words, no matter the project type, size or scope, they have a product to fit it, exclusively manufactured at their own Austrian facilities.

swimming pool in front of modern design house

Image: Internorm

No pane, no gain

Internorm’s premium PVCu and PVCu/aluminium range, which is available in a choice of modern designs and colours, has excellent thermal performance with U values as low as 0.62W/m2K and exceptional sound reduction of up to 47dB. As a result, specifiers can take advantage of a unique window specification that can be tailored to the performance and visual requirements of the project in hand.

The most popular timber/aluminium product range benefits from environmental credentials as well as the wonderful aesthetic qualities of the different timber options. This, combined with outstanding energy performance, makes timber/aluminium ideal for both traditional and contemporary projects across all architectural styles.

The performance of Internorm’s timber/aluminium windows is enhanced by the innovative I-core composite construction, providing additional strength and durability, allowing ‘lift and slide’ doors to be available up to an incredible 11m in width. That allows you the latitude to opt for a dramatic design and really open up your home.

large open plan room with sofa shelves tables and sliding glass doors

Image: Internorm

Beauty built to last

All Internorm windows include the premium ECLAZ® coating as standard. ECLAZ® allows up to 10% more daylight to enter through the glass. It helps to prevent heat loss through the window and maintain a comfortable and energy-efficient interior environment. That not only helps to reduce energy costs but also reduces your carbon footprint.

Additional features unique to Internorm include Fix-O-Round technology, where the glass unit is bonded into the sash, providing a continuous connection between the glazing and frame. The benefits are improved stability, thermal insulation and soundproofing, burglary protection and greater durability of the window unit for its entire lifespan.

long open plan room with seating tables kitchen and sliding doors

Image: Internorm

Shades of light

Choosing the right shading option for large glazing is important, especially on south-facing windows and doors. Internorm has a variety of internal and external options available, helping you control solar radiation whilst also allowing light to enter your home and providing privacy.

Internorm’s I-tec Shading, a uniquely integrated blind, can be solar-powered and operated without an external power source. This intelligent product features a modern automatic mode that allows the integrated blind to open and close automatically through day and night recognition, therefore keeping room temperature at optimum levels.

Until 26th June, triple glazing is available for the price of double.For further information on Internorm’s energy-efficient products and to find your local, approved Internorm Partner across the UK and Ireland, visit

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