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Double Glazed Windows

Double glazing windows

Double Glazed Windows

Warmth, Security and Comfort, Guaranteed

  • Designed, manufactured & installed
  • Made-to-measure, with a range of options
  • Energy-efficient & secure
  • Built to last with long-lasting guarantees
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Double Glazed Windows by Everest

Everest manufactures and installs double glazing across the UK in a wide range of options suitable for all types of houses such as modern, traditional and period properties.


We use the best components to make quality windows that look good with attention to detail. At the core of everything we do, we're committed to developing the most energy efficient windows on the market with the lowest U-values in the UK.


Everest double glazing is available across our full range of window frame materials including uPVC windows, wooden windows and aluminium windows. We also offer a variety of designs, including the popular casement window, Tilt and Turn, bay window and sash window.

uPVC Windows →

Our bestselling windows are highly secure, energy-efficient and virtually maintenance free as uPVC will never rot, rust or flake. With A+ rated double glazing, you get a highly thermally efficient and secure window.

Timber Windows →

Crafted to perfection from sustainable 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.

Aluminium Windows →

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.

Casement Windows →

The most popular window choice. Available in uPVC, wood or aluminium, all with a range of colours and options.

Tilt & Turn Windows →

Tilt turn windows open inwards for easy cleaning and tilt for ventilation without compromising security.

Bay Windows →

Bay windows can be crafted from uPVC, timber or aluminium double glazing to fit with the style of any property.

Sash Windows →

The classic window for a traditional house. Available in beautifully crafted timber or low-maintenance uPVC.

How Double Glazed Windows Are Made For Energy Efficiency

Everest double glazed windows are constructed from a frame and a glazed unit featuring an insulating layer of Argon gas sandwiched between two panes of glass. The primary benefit of double glazing is thermal insulation – to retain heat in a room whilst stopping cold air entering from outside to make the room more energy efficient. The deeper the unit, the more insulating the glazed unit is, Everest double glazed units have a unit depth of 24mm.


Thermal transmittance measures how good a window is at preventing heat from escaping from inside a building. The lower the transmittance value, often referred to as the U-value, the better the product is at preventing heat loss. Choosing energy-efficient Everest windows can help lower your energy bills and reduce your carbon footprint.


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 the efficiency of windows will become more important and that ultra-efficient windows will become a requirement in all new build houses as the standards for the fabric of buildings keep increasing.


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

Commonly Asked Questions About Double Glazing

  • +
    Does double glazing reduce noise?

    Specialist double glazing may help to reduce external noise and noise pollution when combined with other noise reducing solutions around the home.

  • +
    Does double glazing reduce condensation?

    The air contains microscopic water molecules that move closer together as they get colder. When molecules reach a cold surface they clump to form a dew point where visible drops of water appear on cold surfaces. Glass is susceptible to condensation when water droplets collect on the cold surface.


    Double glazing helps to reduce condensation through insulation where the glass is not as cold as single glazed. Double glazing can’t eliminate condensation entirely, so following a combined approach of windows, ventilation and reduced moisture is the only way to completely get rid of condensation.

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    How long do double glazed windows last?

    The lifespan of your windows is dependent on the environment, the quality of the windows and the quality of the installation.


    The material and quality of the frame is important, but if your sealed double glazing unit fails then you lose all your double glazing insulation properties for the window.


    At Everest, we offer a 15 year guarantee against fog and condensation inside the sealed units used in our windows.


    Read more: How long does double glazing last...

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    How much does double glazing cost?

    The cost of new windows is dependent on so many factors such as style and materials. Many websites do offer lists of prices of their double glazed windows, but these are usually the cost for a basic off-the-shelf window and often without the cost of installation. At Everest, our products are made-to-measure and customised to your taste and home, which is why you won't find a price online as there are too many contributing factors.


    Read more: How much does double glazing cost...

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    What window colours are available?

    At Everest we offer a beautiful range of colours and natural woodgrain finishes, so there is a perfect colour to suit every property. Colours range from the traditional white uPVC finish, through to Sage Green and ultra-contemporary anthracite grey or black. Add a modern twist to your windows, with dual colours, complementing the inside and outside of your home.


    Read more: Everest window colours...

Windows Fully Bespoke to Your Home

With hundreds of options to choose from, Everest windows are designed to meet your needs.

Everest coloured window frames

Colours

7 stunning colour options including woodgrain finishes on uPVC which look like real timber.


View Window Colours

Glazing on an Everest window

Glazing

Customise your windows with a choice of glass and glazing, including obscure, decorative, double glazing or triple glazing.


View Glass Options

Everest window furniture

Furniture & Hardware

Our window handles and furniture are available in a choice of colours, so you can create the perfect look for your property.


View Window Furniture

A white casement window in a kitchen with white handle multi-point locks

Why Choose Everest 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 windows can be recycled at end of life to reduce the impact on the environment. We are committed to superior energy efficiency, low U-values and a drive towards sustainability.

Quality Is in The Details

We source the best components and pay attention to the details that make the difference. As a vertically integrated company, we manufacture double glazed windows from scratch, extruding the uPVC for the frames including recycled uPVC for improved sustainability and minimal waste in our production processes, as well as manufacturing the glazing units before assembling the windows using the latest technology on our production line.

Light shining through a anthracite grey casement window onto a desk with a laptop

Case Study

uPVC Double Glazed Flush Casement Windows

4 star rating 4 out of 5 on TrustPilot

The windows look fantastic, so good in fact, that a neighbour knocked on the door to ask us which company fitted them. Mr & Mrs S, Kent

VIEW CASE STUDIES

Everest Window Reviews

Start Your Project Today...

Book your free quotation appointment with one of our local expert consultants who will:


  • Provide an accurate, no-obligation quote
  • Offer ideas and practical solutions
  • Show you samples of our products
  • Take all necessary measurements

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