Evolution Flush windows 

With its cool, sleek line, the new Evolution Flush-fitting casement window is a minimalist's dream. Having predominantly been used in older cottage style properties in the past, it is now a sought after aesthetic for more contemporary properties where a clean and simple outlook is desired.

Designed to create a stunning feature point, these virtually maintenance free windows are a wonderful alternative to timber flush windows, benefitting from the modern convenience and the traditional look.

Some of the key features at a glance:

  • Excellent energy efficiency - WER A+11
  • 1.3 U value as standard
  • Available with a 45mm deep, authentic cill
  • 28mm double glazing
  • Available with traditional Georgian bar, leaded glass or clear glass
  • Discreet trickle ventilation available
  • Available in a vast choice of colours and wood-effect finishes
  • Slimmest window available with greater glazed area
  • Beautiful timber styling throughout with hand-crafted joints
  • High quality range of handles and working peg-stays available, all designed & manufactured in Great Britain
  • Maco RAIL bi-directional high security lock
  • Off set locking push button handle
  • Run up blocks to all window casement openers
  • Centre casement locking with opposing locks


Door Handles

The Flush window can be customised with Georgian bars, lead lights, colours and much more making them suitable for both modern and traditional properties. The window hardware can also be customised with a range of different handles and peg stays to enable you to design the perfect window for your home. Below are some examples of the handles available for these stunning windows.

Glass & Glazing

All Evolution windows carry an A rated Window Energy Rating as standard. The glass units used in the manufacturing of the windows are low E float sealed units with a 20mm air gap manufactured to kite mark standard BS5713. If required toughened glass can be supplied to BS6262 Class A.

Double glazing is fitted as standard, triple glazing can also be supplied if required. Various types of patterned glass can be supplied if obscurity is required. Laminated, acoustic, solar, lead lights and coloured glass is all available on request.

Georgian bars available intern and externally in both 20 or 36mm configuration to achieve specific period looks. All Georgian bars are colour matched to the window with a wood grain finish where applicable.

Technical Drawing

Colour Options



The Evolution Storm 2 windows are available in a range of 10 standard timber-effect colours and 1 smooth gloss white finish as shown above. These colours have been specifically chosen to match those often used in period homes.

On top of this the range, Evolution windows is available in a Kolorbond system enabling a custom choice of over 200 RAL colours.

Flush Window Gallery

Take a look through some installation examples of the Evolution Flush window.