Internorm uPVC Windows

Internorm’s award-winning uPVC windows are a popular choice with Berkshire, Hampshire, Surrey and Oxfordshire homeowners for home renovations or new builds.

All high-performance uPVC profiles are manufactured in Austria in state-of-the-art facilities, guaranteeing the highest quality UPVC windows.

Internorm, established over 90 years ago, is Europe’s leading manufacturer of energy-efficient triple-glazed uPVC windows with a focus on sustainable production methods.

All Internorm windows can significantly improve heat retention and reduce energy bills, making them suitable for low-energy and Passivhaus standards.

Internorm uPVC windows are named using the letters KF. The K stands for Kunststoff, the German word for plastic, and the F is for Fenster, the German word for window. Where there are integrated blinds, the F is replaced with a V for Venetian, which is Venezianisch in German.

Internorm uPVC windows offer excellent thermal insulation and sound reduction, and the I-tec glazing option. With low U-values of 0.62 W/(m²K).

With multiple profile options and design styles, they’re a thermal efficient, practical and cost-effective solution for contemporary living.

It is available in standard white, with a range of foil finishes, or the more recently introduced I-tec Décor print option.

If you are interested in windows with integrated blinds, view the options on uPVC aluminium windows.

KF 520

The sashless KF 520 window, with its innovative glass design and minimalist aesthetic, is a high-performance uPVC window system that offers excellent thermal Insulation and sound reduction.

KF 410

The KF 410 is a high-performing uPVC window with a classic and versatile design. It offers exceptional thermal Insulation, sound reduction, and interior customisation options.

KF 320

The KF 320 features a slim, square-edged frame that combines minimalist design and advanced technology in a high-performance uPVC window system with excellent thermal Insulation and sound reduction.

KF 310

The KF 310 is a cost-effective window system that combines a clean, traditional window design with modern 21st-century energy and security performance. Its rounded sash and frame edges create a soft, timeless look.

uPVC/Aluminium Lift And Slide Doors

KS430

The Internorm KS 430 uPVC Lift and Slide door offers superb thermal insulation of up to 0.64 W/m²K, making it suitable for any project, including passive house.

Internorm Window and Door Prices?

To enquire about window and door prices for the internorm range, you can request a free, no obligation quote

Want to know more?

You may also be interested in reading our blog, ‘Why Choose Internorm Windows and Doors?’