Storm 1 Casement

The Storm 1 window is truly unique; its ground-breaking design means that it carries exquisite styling and features that are usually found on a traditional window. Storm1 also exceeds customer expectation by offering a host of additional benefits, yet none of the drawbacks that come with more traditional windows.

The Evolution Storm 1 timber alternative window range is the pinnacle of stormproof window design and technology.  The design has taken inspiration from timber, giving it a robust yet beautiful styling as well as ensuring that the window follows true timber aesthetics throughout including timber style joints and detailed finishing touches.  The window is also highly energy efficient and comes with A+ 1.3 rating as standard.  It can also be upgraded to triple glazing or be upgraded to include acoustic glass if soundproofing is important to you.

Storm 1 is also has a host of practical features such as egress/easy clean hinges for easy cleaning, and easy fire escape.  It has multi-point shoot bolt security locks and security bolts and claws fitted to the hinge side of all locking window sashes.  We know nothing is more important than protecting your family’s safety.


Key features of the Storm 1 window include:

  • Beautiful timber styling throughout with hand-crafted joints
  • New timber look joints are available on all storm 1 windows (optional extra)
  • Exquisite wood effect detailing across all of the frame
  • 70mm Frame Depth with Storm Proof Casement Sash
  • Exceptional energy performance with A+13, 1.3u as standard
  • Exceptionally low maintenance
  • Greater glazed area allows more light into your home
  • Over 200 colour options available in addition to Evolutions standard wood effect finishes
  • Solid looking cill proportions are similar to traditional timber windows (optional extra)
  • High quality range of handles and working peg-stays available, all designed and manufactured in Great Britain
  • Discreet trickle ventilation via Evolutions unique weather bar (optional extra) 
  • Multipoint shoot bolt locking
  • Centre casement locking with opposing locks
  • Lockable night vent facility

Please find technical drawings shown above.*

Storm 2 Evolution Window

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