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Windows, redefined.

Sleek In Design. Exceptional In Performance.

For every style of property there’s a perfect style of window; a window that will enhance architecture, improve natural lighting, and deliver on thermal performance. Our new line of Invisiline windows make for an outstanding choice for every property where a spacious feel and plenty of light are top priorities.

Uniquely designed with modern technology to incorporate the best of traditional appeal without compromising on style or performance, our Invisiline windows are constructed to a superior quality and finished with elegance.

If you’re searching for that classic timber window look, with all the ease of a modern window designed to excel, then Evolution’s range of Invisiline windows could be the solution that you’ve been looking for.

Innovative ConstructionBreath-Taking Natural Light

What sets our Invisiline window apart from other traditional wood-effect windows, is the sleekness of the design which allows for an amazing quantity of natural light to flood your rooms.

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.


Superb FinishesTailored Appearance

You don’t need to compromise on appearance by choosing a thinner window frame. Invisiline windows are the perfect choice for a customisable window that is tailored to work with the uniqueness of your home.

All of the popular foil colours that we have available at Evolution can be applied to the Invisiline window, as well as a spectacular range of additional customisable options that will turn an Invisiline window into the perfect window for your property.

Enhanced PerformanceEnergy Efficiency

The A-rated construction of Invisiline windows will also help you to combat rising energy bills. Thermally efficient and crafted with excellence, these windows will allow to you achieve a sleek and clean finish without having to worry about increased energy loss.

Evolution are known for attention to performance as well as aesthetics, so you can relax knowing that your home will be warmer, cosier, and less expensive to heat with an Invisiline window.

Dedicated to DesignTraditional Finish

The thin design of the mullions in an Invisiline window makes it the ideal option for properties in conservation areas where style, finish, and design are of the upmost importance to preserve the look of a property and neighbourhood.

With a finish that replicates the look of traditional timber and blends seamlessly into the architecture of your property, Invisiline windows will preserve and enhance the look of your home for optimum aesthetic appeal.


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




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.