uPVC Casement Windows

Bespoke uPVC Casement Windows

Market-leading energy efficiency
Choice of double or triple glazing
British Standards enhanced security
Built to last with long-lasting guarantees

uPVC Casement Windows from Everest

uPVC Casement Windows are virtually maintenance free, and will never peel, flake, fade, rust or rot. Our uPVC windows are made-to-measure and expertly installed for a millimetre tight fit, giving you a strong, secure and energy-efficient window.

Everest triple glazing and double glazing are the highest performing windows on the market with industry-leading U-values making it ultra energy efficient. Choosing energy-efficient Everest windows can help lower your energy bills and reduce your carbon footprint.

Energy Efficiency

With Everest uPVC windows, we offer energy efficient products with a range of solutions that provide the right products for your home.

As the Future Homes Standards are introduced, the energy efficiency of a home and U-values for windows will become more important. At Everest, we believe that triple glazed windows will become more important and that triple glazed windows will become a requirement in all new build houses as the standards for the fabric of buildings keep increasing.

By choosing Everest uPVC windows now, we will help you to future-proof your home with the best products for energy efficiency and the environment.

uPVC Casement Window Options

Everest conservatory window section view showing panes and frame

Double or Triple Glazing

Our uPVC casement windows are available with either A+ rated double glazing or industry leading A++ triple glazing, and include internal low-e glass that reflects heat back into your room, to keep your home warmer and help reduce your energy bills.

Silver Everest window handle with decorative spiral

Window Furniture

A wide range of window furniture is available to match the style of your home. Our standard window handles come in black, gold, silver, chrome or white, whilst the premium 'Monkey Tail' and 'Tear Drop' handle ranges are available in black, gold, graphite and chrome.

Georgian Bars

Georgian bars are a popular addition and a classic choice for conservation areas. They can either be internal bars between the glass panes for easy cleaning, or external bars on the outside. We believe it's all in the detail so we also add a white gasket to the Georgian bars that blends invisibly into the bar itself.

White Everest conservatory window frame detail

Smoothweld

Our uPVC casement windows have the option of our Smoothweld technology, which gives you an almost invisible corner joint, with clean, seam-free lines, no deep grooves that might harbour dirt and a beautiful, flawless aesthetic.

White Everest conservatory window with plants

Window Framing

We offer 2 types of window framing - traditional and contemporary. Traditional makes your frames match on both sides, giving it a symmetrical design, and contemporary allows the glass panes and window openings to vary in size.

Glass

It doesn't stop at double or triple glazing - there's also a range of glass types to suit your needs. Everything from obscure glass, which is perfect for bathrooms and offices, to decorative glass with a range of coloured, leaded and bevelled designs.

A wide array of colour combinations to choose from on uPVC casement windows

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. Whereas on dual colour options, the frame is either white or white woodgrain inside with a second shade on the exterior, in keeping with both the character of your property and inside décor.

White

Golden Oak

Dark Woodgrain

White Woodgrain

Dark navy blue and white material sample

Dual Anthracite Grey

Cream colored patterned material with a diagonal stripe

Dual Cream

Dark brown wood laminate with white trim

Dual Dark Woodgrain

Brown and white wood effect conservatory finish sample

Dual Golden Oak

Light sage green textured Everest conservatory material sample

Dual Sage Green

Casement Window Furniture

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.

Chrome window handle for Everest conservatory

Off Set

Brushed nickel window handle for Everest conservatory

Tear Drop*

Monkey Tail*

Explore our coloured uPVC windows

A simple change of colour can make a refreshing change to a property's style. Click below to see how a simple colour change could alter the look of your home.

White

White Woodgrain

Cream

Anthracite Grey

Golden Oak

Dark Woodgrain

Sage Green

What does uPVC stand for?

uPVC stands for Unplasticised Poly Vinyl Chloride. Also known as vinyl, it is rigid, durable and long lasting material used in the construction industry. Typically, uPVC is used for making pipes and windows, due to its maintenance free properties.

How long do uPVC windows last?

You should expect uPVC windows to last a minimum of 20 years, but with maintenance and varying factors, some windows can have a much longer life than expected.

Window type	How long they last	Everest guarantee
Double glazed units	25 years	Lifetime for condensation and fog
uPVC windows	20-25 years	Lifetime for discolouration (white uPVC)
Aluminium windows	45 years	25 years for the profile
Hardwood timber windows	50 years	30 years against rot of the profile

The quality of window frame products varies dramatically between manufacturers and installers. Cheap uPVC will warp and discolour long before a quality uPVC frame would. If frames are not fitted properly, they can be prone to water ingress, damp and draughts that will speed up deterioration.

Are grey uPVC windows available?

Everest uPVC windows are available in a range of colours, from the traditional white uPVC finish, through to Chartwell Green and ultra-contemporary anthracite grey or black.

At Everest we offer a beautiful range of colours and natural woodgrain finishes, so there is a perfect colour to suit every property.

Add a modern twist to your windows, with dual colours, complementing the inside and outside of your home.

How secure are uPVC windows?

Everest uPVC windows are PAS24 and Secured By Design accredited.

Everest casement windows are fitted with a multi-point locking system, which securely fastens the window to the frame at multiple points, providing superior security compared to standard locking systems.

What makes a uPVC window secure? infographic

Read more: uPVC window security...

Can shutters be fitted to uPVC windows?

Shutters can be fitted to uPVC windows in the same way as that for timber frames as these are normally fitted to the internal fabric of the building rather than directly to the window frames. We'd advise a specialist company to ensure that correct clearances from handles and to hinges to enable easy opening of the windows for ventilation.

Can I fit uPVC windows in a conservation area?

If you live in a conservation area, you need to check with your local planning office about limitations for window replacement. There may be a note in your Deeds about any restrictions.

Usually, in a conservation area, any changes to the fabric of the building have to be made like-for-like. And that will include materials.

If you currently have timber sash windows, you have to replace with timber sash windows.

Not all local planning offices follow the same rule, so always check to find out what you can and can't do.

How much do uPVC windows cost?

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. However, these are average guide price ranges and not a definitive cost to replace windows in your home.

Read more: How much new windows cost...

Why Choose Everest uPVC Windows?

Energy Efficiency & Sustainability

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.

Quality Is in The Details

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.

Everest Window Reviews

BSI ISO 9001 quality management systems certified