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Casement Windows

PRICE THAW  |  up to 40% OFF windows + 0% FINANCE*

Casement Windows

  • Choice of uPVC, timber & aluminium
  • Super thermally efficient
  • Security exceeds British Standards
  • Conservation area designs & styles
  • Long lasting & lifetime guarantees
An Everest flush casement window in anthracite grey

Find the best casement window style for your home

Casement is the most popular choice in window design. At Everest we offer a simple range but with all the options to help you create the perfect window for your home - from maintenance free uPVC to elegant timber, available in a choice of colours, that will give your home a mark of distinction.

Compare Everest casement windows ❯

Gallery of our casement windows

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The benefits of Everest casement windows

Close up of Everest GrabLock, developed with Yale and fitted on a white uPVC casement window

Significantly exceeds British Security Standards

Our casement windows are amongst the most secure on the market and significantly exceed the level of security demanded by British Standards. We have increased this standard even further by introducing GrabLock, developed with leading lock manufacturers Yale. GrabLock has three times the surface area of a standard, multi-point window lock which makes it our most secure lock ever.

Energy efficient with A++ rated glazing

Our triple glazed casement windows are rated a market leading A++, which is the warmest and safest available. We also use advanced technology for all of our casement windows to keep your home warm in the winter, glass technology reflects heat back into the room, an argon filed gap between the window panes, double draft resistant seals and a unique multi-chamber profile ensures your home stays warm.

Inside view of a casement window in a warm cosy room benefiting from Everest energy efficient windows
Everest windows are available in a choice of colour including anthracite grey woodgrain seen here

Great choice of materials and styles

In addition to making your home secure and warm an Everest window can also add style to your home. Our casement windows are available in Upvc, aluminium and timber, we also offer a range of colours to make your windows unique to your home. All of our windows are made to measure for a perfect fit so your new windows will fit seamlessly to your home. We also have a great choice of options including smoothweld technology which makes the frames of your windows almost invisible which gives your windows some extra style.

Make your home safer with new GrabLock

GrabLock is our new window lock, developed exclusively with leading lock manufacturer Yale. It has 3 times the locking surface area of a standard, multi-point or shoot-bolt lock, making it our most innovative and secure lock ever.

Find out more
Craig Doyle introducing Everest Windows GrabLock from lock experts Yale

Explore casement windows by material

A white upvc sash window
uPVC Casement ❯
Timber sliding sash window
Timber Casement ❯
Timber sliding sash window
Aluminium Casement ❯

Popular Everest casement window options

A white Everest uPVC window with energy efficient triple glazing

Triple glazing

Everest triple glazing has been awarded A++, the highest energy rating possible. The extra pane of glass doesn’t just make your home more secure, warmer and quieter, it can also help you save on your energy bills by keeping in the heat you are paying for.

View triple glazing ❯
Close up of an Everest uPVC window in chartwell green with woodgrain effect

uPVC woodgrain colours

Our uPVC casement windows are available in a range of foil colours, which is a form of laminate finish. Foils replicate the colour, and most importantly, the texture of wood, making them look as good as timber windows but without any of the maintenance.

View colour options ❯
Everest Smoothweld technology with invisible joints on a grey cedar uPVC flush casement window

Smoothweld technology

Opt for our new smoothweld technology to ensure near invisible joints in the corners of your windows, helping complement our beautiful window designs.

Traditional and contemporary window framing options available on Everest casement windows

Equal vs unequal sightlines

When choosing your framing options, it is important to consider the sightlines of the design. Sightlines are the horizontal and vertical edges of the glazing area. When the sightlines are equal it means that the edges of the glazing line up both horizontally and vertically.

A white uPVC Georgian window with external Georgian bars

Georgian bars

Create a distinctive look by opting for Georgian bars, which can either sit between your glass panes for easy cleaning or externally for a touch of authenticity.

Guaranteed for peace of mind


Our casement windows have a range of comprehensive guarantees including lifetime against fog, condensation and discolouration. Plus, our guarantees are transferrable should you sell your property.

Everest's latest customer window reviews

5 star review for garage doors
We were completely satisfied with Everest Windows from the ordering to the installation.We have now ordered Everest Windows for the rest of the bungalow. Alex C Downie 4/8/18

Windows advice and inspiration

Read our expert advice from inspiring ideas and useful information to maintenance and tips for caring for your windows.

View the Everest Blog

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All our products are bespoke, so to provide an accurate quote an appointment is required. Simply fill in the form below and let us know a time that suits you. Partial or full completion of the form will stimulate a follow up to confirm the appointment.

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Get a FREE quote


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If you require a date that's unavailable, please call us on 01707 830 275 and we will happily book this for you.

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