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Casement windows are our most popular and versatile window style with hundreds of configurations and options to create the perfect window to suit your house. Everest casement windows are available in classic uPVC, in wood for a traditional style window and aluminium for modern window frames. You can choose from a wide variety of colours and window fittings. Casement windows can be fitted with double glazing or triple glazing for exceptional energy efficiency.
A casement window is hinged at the side and is usually fitted in single or double panels. Casement windows can include single, double, triple (or more) panels. Depending on the size of the aperture. Different variations of casement windows will suit most properties and are our best selling window style at Everest.
Openers can be added to one side, both sides, top or full frame to offer different degrees of ventilation and the openers will shut with a tight seal for superior insulation and energy efficiency. The material and colours can create a traditional window or a contemporary style. uPVC (the most popular), timber for traditional or aluminium for a contemporary building.
Our bestselling windows are highly secure, energy-efficient and virtually maintenance free as uPVC will never rot, rust or flake. With A++ rated triple glazing, you get our most thermally efficient and secure window ever.
Crafted to perfection from sustainably sourced hardwood or softwood and laminated for extra strength. The micro-porous paint and stain finishes help keep timber windows protected from the elements, so they look their best for years to come.
Add a contemporary style to any property, with our slimmest profile and range of modern colours. The slim frame and large glass area let more light flood into your home, while aluminium is so strong and robust, it requires very little maintenance.
With the introduction of our new casement windows, we are offering superior energy efficiency, market-leading U-values and a drive towards sustainability not widely available in the UK.
As the Future Homes Standards are introduced, the energy efficiency of a home and U-values for windows will become more important. Everest double glazed and triple glazed casement windows have an ultra-low U-value. The frame is made with recycled uPVC and the window can be recycled at the end of life to reduce the impact on the environment.
By choosing Everest casement windows now, we will help you to future-proof your home with the best products for energy efficiency and the environment:
Our windows are available in a beautiful range of colours including uPVC woodgrain finishes, which look like real wood, but without any of the maintenance issues. The single colour frames are the same colour inside and outside. On dual colour options the frame is white inside with a second shade on the exterior, in keeping with both the character of your property and inside décor.
White Woodgrain / White
Cream / White
Agate Grey / White
Silver Grey / White
Slate Grey / White
Anthracite Grey / White
Black / White
Golden Oak / White
Rosewood / White
Chartwell Green / White
Black & White
We offer a range of window handles and colours to match the style of your home, all offering flawless operation and outstanding quality. Plus, a new expanded range of premium anti-corrosion designs, which is proven to withstand the harshest conditions.
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Take a look at some of our recent casement window installations.
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A casement window is simply a side-hinged window but it’s Britain's most popular window so we offer it in all kinds of sizes and other options. Here we helped the customer select a range of white, double-glazed casement windows with Georgian bars and both top and side opening for ventilation. Beautiful – and practical.
Project: Briar CottageStyled by: Ann BroadPhotographer: Colin Poole
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Here we fitted a top hung sash, allowing for safe ventilation but maintaining the perfect symmetry of the window. The handle was selected by the customer to be at the bottom of the window rather than side mounted to make it easier to reach across a work surface.
This picture is a great example of how a modern window can fit sympathetically into a Victorian Cottage. It fades seamlessly into the background and doesn’t detract from the character of a lovely period home.
It's the little things that make a big difference. For example, the Georgian bars have a white gasket that blends invisibly into the bar itself. Our window handles are all made of metal to give a wonderful solid feel in the hand and along with all our hardware come in a range of finishes to complement your home.
Project: Carters HouseStyled by: Ann BroadPhotographer: Colin Poole
Everest uPVC casement windows are fitted with a multi-point locking system, which securely fastens the window to the frame at multiple points. This provides superior security compared to standard locking systems giving you the confidence of feeling safe in your home.
Project: Chase HouseStyled by: Ann BroadPhotographer: Colin Poole
Everest uPVC casement windows not only look great, but with a multi-point locking system, you can rest assured your home is offered the highest level of protection, tested to meet the latest British Security Standards and accredited with Secured by Design and PAS 24.
Sometimes, there’s simply nothing to match the natural beauty of wood. Everest offer a wide variety of casement windows in both Softwood (European Redwood) and Hardwood (Red Grandis) that bring a unique elegance and natural warmth to your home.
Project: Woodside HouseStyled by: Ann BroadPhotographer: Colin Poole
Wood is a natural retainer of heat, which gives our timber casement windows a head start. But we give a further boost, thanks to our A rated double glazing. It comes complete with Low E internal glass, 20mm gaps and advanced weather-resistant seals which always return to their original position for a tight fit.
Aluminium casement windows give you a wonderful modern look and slim profile thanks to the great strength of the metal. Regular sight lines are built in as standard, so each window looks the same, regardless of whether it opens or is fixed. They also offer low maintenance and a wide choice of colours and glazing.
Project: Tenterden House
Up close, the elegance of the slim profile and the even sight lines becomes evident. Yet the narrowness of the design still allows for the 20mm gap between the glazing, and the multi-point locking system is designed to exceed British Standards.
There are several types of casement windows that generally differ in how the window opens:
Read more: Different types of windows...
Read more: What is a casement window...
A flush casement window is the same as a casement window except for how the window opener sits on the outside frame.
A standard casement window opener sits proud from the frame when closed.
A flush casement window opener sits flush into the frame when closed.
The benefit of a flush casement is the enhanced weatherproofing and draughtproofing. But the flush casement gives a sleek appearance and is becoming very popular as a contemporary style when combined with a slim aluminium frame.
Casement windows are incredibly versatile with so many different configurations. They can be styled traditionally, or contemporary with different materials, so they suit any type of property.
The only limitation of a casement window is the size of the opening panel. Due to the weight of the glass, an opening panel hinge has to support the window so it can only be a certain size. This is why casement windows are configured with different-sized panels.
Casement windows are versatile and can be configured and styled to suit almost all architectural styles and property ages.
Cottages and traditional properties suit a timber framed casement window, sometimes with Georgian bars.
Modern builds suit flush casement windows with aluminium frames.
00s, 90s new builds and 60s, 70s, 80s properties all suit uPVC casement windows.
Casement windows in different materials look completely different and can be adapted to suit any style of property. A flush casement window with a slim aluminium frame is contemporary and suits modern houses.
Casement windows will not go out of style as they are so versatile and can look ultra modern or traditional.
Casement windows are the cheapest window style and a white uPVC casement window is the most economical option, costing between £600 to £1,800 depending on size, glazing design and how many are being replaced in the property.
The average price for new windows is anything between £600 to £3,600 per window, depending on options.
Read more: How much new windows cost...
You may be surprised by the number of glass options for your new windows, and it is important to understand which would be best suited for your requirements. Standard glass is called ‘Low E’ and is a great all round option for energy efficiency. Low Iron glass offers high clarity and energy efficiency. Toughened glass is five times stronger than regular glass and laminated glass, contains a plastic interlayer offering better insulation and resistance against damage.
Read more: Glass options for windows...
Get in touch with our team today for a free, no-obligation quote.
When you choose Everest, not only do you make your home warmer and reduce your energy bills, but you also reduce your CO₂ emissions by consuming less energy to heat your home. We strive for an environmentally friendly manufacturing process and our new windows can be recycled at end of life to reduce the impact on the environment. We are committed to superior energy efficiency, market-leading U-values and a drive towards sustainability that has not been widely-available in the UK.
We source the best components and pay attention to the details that make the difference. Our window frames have almost invisible corner welds and superior weather tight seals. An extreme multi-point locking system for enhanced security that meets PAS 24:2022 and Secured By Design standards. And a trickle vent which has been acoustically tested to show an improvement of noise reduction from our previous vent.
*Only available on Exclusives uPVC Casement windows.
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I'm so impressed with how warm the house is now in the winter with the triple glazing, there is a definite difference from before. Mr G, Lincolnshire
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When replacing windows, always choose a style and material that is in keeping with the architectural style and age of your house. Read our buying guides that will help you to choose the right windows for your home.
Our guide to the cost of new windows to help you budget.
Choose windows based on the age and architectural style of your house.
Everything you need to know about buying new windows for your home.
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Made in Britain is an initiative set up to highlight the importance of products being manufactured in Britain.
Certified to ISO 9001, the most recognised quality management standard from The British Standards Institute.
Quiet Mark encourages companies to prioritise noise reduction and find solutions.
Secured by Design is a UK police initiative promoting products that help reduce crime.
FENSA have accredited Everest's installation of replacement windows, doors and rooflights in existing dwellings.
The BFRC is the premier UK authority for independently verified ratings of energy efficient windows and doors.