IQ Glass are the leading architectural glass technology and minimal framed glazing company in the UK. Utilising years of experience with glass, IQ Glass are able to mix minimal aesthetics with innovative glass technology for a beautiful yet function glass structure. We strive to understand and fulfill the highest customer's quality expectations, of performance, durability and design.


Mondrian Windows

Our Mondrian Window system is a modern, thermally broken steel window suitable for modern projects in a traditional design

Modern Glass Technology by IQ Glass

Modern Steel Window

Mondrian Windows merge the beautiful designs of traditional 'Crittall' steel windows with modern performance requirements. Our steel windows are all fully thermally broken to provide you with unparalleled insulation from a steel frame.

Our standard Mondrian Window has a steel frame 47mm wide for an extremely slim and clean window design. These slim framed steel windows can be engineered into inward or outward opening windows up to 1m wide and 2.7m high. Our steel fabrication factory can engineer steel windows larger than this on request, please get in touch for more information.

Bespoke Design Engineering

IQ fabricate our steel windows in house at our specialist steel fabrication factory in order to achieve the highest levels of design and performance from these integral elements of architectural design.

As such these highly specialised architectural Crittall-esque steel windows can not only be manufactured from the traditional galvanised steel, but also Corten Steel, Patinated Bronze or Stainless Steel for a truly unique appearance to your steel windows.

A matching door system, Mondrian External Doors, is also available for a steel cohesive window and door design.

Mondrian Windows

Two configurations of Mondrian windows are on display at our showroom in Amersham, integrated into the Secco box. These windows are made with Corten Steel to match with the Belgium doors and are configured as a pivot and side hung window. Book a showroom visit to view our Mondrian windows in person.