KF 520

Our Internorm KF 520 uPVC windows are available from Thames Valley Windows throughout Berkshire, Surrey, Hampshire, and the Southeast.

The sashless KF 520 uPVC window, with its innovative glass design and minimalist aesthetic, is a high-performance uPVC window system that offers outstanding energy efficiency and excellent thermal insulation and contributes to a more sustainable environment with its sound-reduction properties.

The modern, minimalist design of the window sash with slim frames makes it nearly invisible from the outside. Its uninterrupted, seamless glass aesthetic creates the illusion of fixed glazing that maximises natural light.

The KF 520 combines innovative design and advanced technology. It is made of high-performance, triple-glazed heat-insulating glass and a triple gasket seal, which enhances its weather resistance and thermal Insulation to offer outstanding performance in all conditions.

The sash features the revolutionary I-tec Secure locking system with integrated flaps as standard, an innovative security feature that is hard to rival and unmatched in the glazing industry.

The bespoke KF 520 uPVC window system is designed to be low maintenance and durable. It comes in various RAL colours and finishes, enhancing your property and matching your interior design choices internally and externally.

The KF 520 is also available as KF 520 uPVC/aluminium.

Sound Reduction: up to 46 dB
Security: up to RC3
Locking: Fully Integrated
Construction Depth 90mm
Design Styles: Home Pure, Home Soft, Ambiente
I-tec Glazing

KF 520 uPVC Window Prices

For more price information, complete our request a quote online form to discuss your project with one of our designers. You can upload your plans, ask questions, and receive more information on our design, supply and installation process. Using their extensive glazing knowledge, our designers will offer a bespoke collection of windows and doors tailored precisely to your project’s specification, design and budget considerations.

Please request an appointment to visit our Bracknell showroom and view the range of Internorm windows and lift and slide doors on display.

Recent Internorm Projects

Please take a moment to browse our recent Internorm projects. Our stunning window and door installations have transformed Berkshire, Surrey, and Hampshire properties. Each project is a testament to our exceptional installation quality and meticulous attention to detail.

Want to know more?

You may also be interested in reading our blog, ‘Why Choose Internorm Windows and Doors?’ or Thames Valley Windows Won Not One But Two Internorm Awards