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Windows, redefined.

The Next Generation Stormproof Window

Quite simply, our next generation Storm windows provide the beauty of timber but without the drawbacks. No expensive maintenance, no laborious sanding and painting. Our beautiful, energy efficient, timber-alternative windows come with a 1.4 U rating or better as standard, and the excellent security features means your home is always safe, warm and secure.

Storm is truly a unique window unlike any other. Its ground-breaking design fuses exquisite traditional timber aesthetics with modern technology and performance, to produce a truly sensational, stylish window that requires little or no maintenance and has the look and feel of real wood.

Innovative TechnologyTraditional Aesthetics

Every aspect of Storm has been meticulously designed to authentically emulate traditional timber windows. Taking inspiration from classical cottage windows, Storm blends intricate period detailing and authentic colour options with advanced material technology and innovative design to create a unique window, which offers unrivalled aesthetics and a virtually maintenance free solution.

This stunning window can be customised to your exact requirements with stylish Georgian bars, intricate leading or even stained glass. In addition you can choose from a range of standard painted and natural wood colours. Alternatively our colour matching system allows us to custom paint your windows in a choice of over 200 RAL colours.

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Stormproof Windows

Advanced PerformanceEnergy Efficiency

Not only is Storm beautiful to look at, it also offers exceptional energy performance, keeping your home warm in winter and helping to reduce heating costs. Storm provides remarkable noise reduction and thermal performance with an impressive U value of 1.4 or better as standard.

Storm can also be upgraded to incorporate triple glazing for further energy saving, or to feature our innovative acoustic glass where noise reduction is of the essence.

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stormproof windows

Committed to QualitySuperior Security

Security is taken very seriously and is an integral part of the innovative design of our windows. Evolution products are independently tested by a third party accredited test centre to current British and European Standards. Storm windows feature the latest easy escape egress hinges as well as a host of innovative security features, incorporating high security multi-point shootbolt locking systems.

Each and every one of our windows are designed to not only look beautiful but also to keep your home safe and highly secure for years to come through the use of solid, sturdy, tested and reliable locking mechanisms.

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stormproof windows

Breath-taking Natural LightInvisiline

All Evolution Storm & Flush windows are available as an Invisiline option. Invisiline windows are constructed with a 127mm sightline across mullions, which compared to the standard 162mm, creates an incredibly sleek window design. The thinner frame and larger glazing area really deliver when it comes to improving the natural light inside your home.

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stormproof windows

The Finest MaterialsCRAFTED TO DELIGHT

We have a dedicated team of experienced craftsmen who are passionate and highly skilled with years of experience. Each and every window is individually handcrafted to your exact specification, whether it is a bay window with Georgian bars in a specialist colour or a leaded window with stained glass in a wood grain finish, each of our windows and doors has its own unique journey.

Evolution Stormproof Windows Technical Features





Item Specification
  • 70mm or 82mm system
  • Stormproof sash
  • Internally glazed
  • Fully integrated dual weather seals
  • Galvanised steel reinforcing built in where necessary
  • A range of deep, timber look cills available
  • Timber style mechanical transom and mullion joints
  • Low E float glass sealed units including 20mm air gap all manufactured to kite mark standard BS5713 Fire Exit/Easy Clean hinge Toughened glass to BS6262 Class A
Glass Options:
  • Double or triple glazing available
  • Various patterned glass for varying degrees of obscurity
  • Laminated glass, acoustic glass and solar control glass options
  • Square and diamond leads and coloured glass options
Window Finish Options:
  • Natural Wood
  • Rosewood
  • Black
  • Anthracite Grey
  • Olive Grey
  • Agate Grey
  • Natural Oak
  • White Grain
  • Cream
  • Smooth White
  • Ability to colour match to any colour
Locking and Hardware:
  • Multipoint locking with shoot bolts
  • Key locking push button handle
  • Night vent positions available
  • Traditional wrought iron handles and peg stays (working and decorative), standard cranked handles and contemporary Ventiss handles and
  • peg stay (working and decorative) range available
  • Traditional range colours – Black and Pewter
  • Standard range colours – White, Black, Bright Chrome, Satin Chrome, Bronze, Gold
  • Ventiss range colours – White, Black, Gold, Gunmetal, Chrome, Satin Chrome
  • Ventiss Designer range colours - Chrome & White, Chrome & Black, Chrome & Gold, Chrome & Gunmetal, Chrome & Satin Chrome
Hinge Options:
  • Fire Exit/Easy Clean Hinge
  • Security claws
  • Child Restrictors
Internal Bead Finish:
  • Ovolo beads
Georgian Bar Detail Options:
  • Putty outside, Ovolo inside
  • 20mm Bar and 36mm Cottage style bar internal and external available
  • All Georgian bars match the colour of the window, with a wood grain finish
Internal Bead Finish:
  • Ovolo beads
Energy Rated Options:
  • High ratings as standard









Committed To Quality10 Year Guarantee

Renowned for exceptional service at every stage of the design, manufacture and installation process; our customer care team ensure each customer receives the very best experience. We’re so confident of the enduring quality of the windows and doors we produce, we give a 10 Year guarantee on all Evolution products, providing each customer with the ultimate peace of mind.

Like to know more? Get in Touch

To request your free brochure, free no-obligation quotation, or to request a call back from one of our advisors, please complete your details below. Alternatively call us 01767 821548.


Installer Locator Find your nearest showroom

Your next steps

Request a brochure

If you can’t visit your local Evolution showroom but still want to find out more about our beautiful handcrafted windows and doors then simply order a brochure today and be inspired.


Request a quotation

Speak to one of our friendly, experienced designers to discuss your requirements and individual project needs. We will provide you with advice and a detailed, no-obligation quotation.

Get a quote

Visit a showroom

To truly explore Evolution, why not visit your local showroom where you can see the Evolution difference for yourself. We are also always happy to welcome visitors to our Bedfordshire head office.

Visit today

The UK's finest timber alternative windows and doors.