Traditional Window Features

Traditional on the outside, advanced design on the inside. Evolution may offer a traditional aesthetic, but every inch and contour uses the absolute latest in technology for exceptional performance while retaining traditional window features.


  • Sightlines: Equal and perfectly balanced sightlines and frame proportions to deliver a greater glazed area, allowing more light into your home.
  • Classic Georgian Bar: Our Evolution Georgian windows replicate the appearance and proportions of a traditional timber window with the authentic Georgian bar and ovolo finishing. 
  • Traditional Cill Details: Evolution cills have been developed to authentically replicate the depth of a traditional timber cill, seamlessly blending in with the window design. 
  • Authentic Butt Hinge: Traditional butt hinges help to create a truly authentic timber window aesthetic, reflecting original window design principles. 
  • Handles & Stays: Personalise your Evolution windows with our stunning selection of UK sourced standard , traditional and contemporary handles and peg stays. 
  • Handcrafted Joints: Traditionally crafted joints - each one passes through the hands of Evolution's teams of master craftsmen, giving all the authentic beauty of traditional timber joinery. 
  • Trickle Vent: Our windows do have trickle ventilation. It’s easy to miss. Our unique design means you’ll be free of unsightly bulges, with a seamless integration that keeps air circulating without compromising aesthetics. 
  • Timber Aesthetics: For character and beauty, very little beats the timber aesthetic. Evolution's unique technology marries traditional wooden aesthetics with the highest performing technology. It’s not timber. It’s something better. 
  • Colour Finishes: Whatever your requirements, we have a colour for you. We have a range of authentic wood grain finishes as standard, and can paint your windows to one of over 200 RAL colours.

Timber effect joint:

Evolution has carved a position for itself as true pioneers in the design and manufacture of traditional, timber replica windows and doors. Innovation and customer feedback has informed every step of our journey and through this relentless passion for detail we have developed our unique corner joint. Available across the Evolution Collection, the patented timber-look joint has been designed to allow all sashes to closely replicate the classic joinery methods used in the production of traditional windows. Timber-look corner joints are the epitome of elegance produce a truly authentic and beautiful window frame. This unique joint has all the beauty of natural timber, but all the strength of a modern weld. All the style of timber without any of the compromise.

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