Chris Farrington, Cameron Gunn and Lee Manning of ReSolve Advisory Limited were appointed as Joint Administrators of Everest 2020 Limited (“Everest”) on 24 April 2024.

If you have any queries in relation to the business and/or administration, please contact

Chris, Cameron and Lee are licensed to act as Insolvency Practitioners in the United Kingdom by the Institute of Chartered Accountants in England and Wales and, along with their staff, act without personal liability at all times.

Licenced Insolvency Practitioners who are appointed as Administrators, and their staff, act as agents of the company over which they are appointed. A list of ReSolve’s licensed Insolvency Practitioners can be found on our website.

Double glazing windows

Everest Windows

Windows to Suit Any House

  • Designed, manufactured & installed in the UK
  • Made-to-measure, with a range of options
  • Market-leading energy-efficiency & security
  • Industry-leading low 0.80 U-value

Everest Windows

We supply and install uPVC, aluminium and wooden windows in casement, sash, tilt and turn and bay window styles. We also offer secondary glazing for anyone in a listed building that can't install double glazing or triple glazing windows.

Everest triple glazing is one of the highest performing glazing units on the market with a 0.80 U-value making it ultra energy efficient. Our double glazed windows also have a low U-value. Choosing energy-efficient Everest windows can help lower your energy bills and reduce your carbon footprint.

We only use the best components to make superior quality windows and pay attention to all the details of our frames. Almost invisible corner welds, superior weather tight seals, an extreme multi-point locking system for enhanced security and a trickle vent which has noticeable noise reduction on previous vents. All Everest windows are tested to the latest British Security Standards with Secured by Design and PAS 24 accreditations.

We make replacing your windows as easy as possible. We can help you choose the right style and fittings in a design appointment and take care of everything from start to installation finish. All Everest windows are bespoke, made to order in the UK and installed by our team for a perfect fit and finish.

Double Glazing →

Our high-quality double glazed windows will keep your home warm, safe and quiet.

Triple Glazing →

Our triple glazed windows are our most energy-efficient, with an A++ energy rating.

Secondary Glazing →

Secondary glazing is perfect for listed buildings to improve energy efficiency and reduce noise.

Everest Window Styles

Casement Windows →

  • Highly thermally efficient
  • An array of colour options
  • Smooth or woodgrain
  • Highly secure locking

Tilt & Turn Windows →

  • Opens in for easy cleaning
  • Tilts for secure ventilation
  • An array of colour options
  • Smooth or woodgrain

Bay Windows →

  • A sense of space and light
  • Panoramic views
  • Four different configurations
  • uPVC, timber or aluminium

Sash Windows →

  • Replica traditional design
  • Smooth running mechanisms
  • Smooth or woodgrain
  • Traditional sash furniture

Market-Leading Energy Efficiency

With the introduction of our new window range, we are offering a product that has superior energy efficiency, market-leading U-values and a drive towards sustainability that has not been 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. At Everest, we believe that triple glazed windows will become a requirement in all new build houses as the standards for the fabric structure of buildings keep increasing.

Everest uPVC triple glazed windows and double glazing windows have a low U-value with triple glazing achieving a market-leading 0.80. The frame is made with recycled uPVC and most of the window can be recycled to reduce the impact on the environment.

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

  • 0.80 U-value achieving the proposed Future Homes Standard
  • PAS 24:2022 highest security standards
  • Excellent acoustic standards with new low noise vent
  • Recycled uPVC used in frames, a more sustainable choice than virgin uPVC
  • The uPVC window can be recycled, meaning less impact on the environment

Everest Windows Gallery

Take a look at some of our window installations. Click an image below to open the gallery.

Everest Window Materials

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 triple glazing, you get our most thermally efficient and secure window ever.

  • Our highest-rated energy-efficient window
  • Our most secure window
  • Virtually maintenance free
  • Wide range of colours and woodgrain finishes

Timber Windows →

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.

  • Perfect for period and listed homes
  • Laminated for extra strength and rigidity
  • Micro-porous finish for protection
  • Choice of paint or stain

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.

  • Our slimmest frames
  • Strong and durable material
  • Low maintenance
  • Modern colour range

Compare Everest Windows Range

Unsure what windows to choose? Let us help you find the perfect window style for your home.







Dual colour option
Woodgrain finish

Dual colour option
Woodgrain finish

Dual colour option
Woodgrain finish

Dual colour option
Woodgrain finish
ENERGY RATINGA++ Triple Glazing
A+ Double Glazing
AA Triple Glazed
B Double Glazed

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 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.

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

Windows Fully Bespoke to Your Home

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

Everest coloured window frames


Over 20 stunning colours including woodgrain finishes on uPVC which look like real timber.

View Window Colours

Glazing on an Everest window


Customise your windows with a choice of glass and glazing, including obscure, decorative, noise-reducing, 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

Commonly Asked Questions

  • +
    How much do new windows 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 do new windows cost...
  • +
    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 Chartwell 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...
  • +
    How long do windows last?
    There is no reason why quality windows can’t last for the lifetime of the property if well maintained. However, not all windows are created equally, for example timber windows will require some maintenance to maintain paintwork. Invariably this comes down to personal preference lower quality windows for example may have no gas between the panes limiting their effectiveness at reducing warmth in a room. Others may use poor quality seals which perish and result in draughts after around 10 years.

    Read more: How long does double glazing last...
  • +
    What types of glass are available for windows?
    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...
Case Study

uPVC Triple Glazed Casement Windows

5 star rating 5 out of 5 on TrustPilot

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


Everest Window Reviews

Everest Buying Guides

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.

How much do new windows cost

How much do windows cost?

Our guide to the cost of new windows to help you budget.


Different types of houses

Different Types of British Houses

Choose windows based on the age and architectural style of your house.


How to choose windows

How to choose windows

Everything you need to know about buying new windows for your home.


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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