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Everest went into administration on 24 April 2024.
Everest is one of the largest and most popular double glazing windows installers in the UK, with over 3% of the total market share. The company designs, manufactures, retails and installs its own products in the UK, which allows them to offer a premium service.
Everest offers a range of customisable replacement windows, including uPVC, timber and aluminium frames in a number of styles: sliding sash, bay, tilt and turn and casement. The company also offers a range of opening styles, glass finishes (including double and triple glazing), colour options and decorative glass finishes, and each unit incorporates locks accredited by Secured by Design, the police security initiative that provides a recognised standard for security products.
Everest is willing to back the quality of its products with comprehensive warranties, including a lifetime warranty that comes at an extra cost. Everest’s warranties cover many possible issues, including discolouration, condensation, rot and fungus.
Unlike some of the companies we’ve reviewed, Everest serves most of the UK, including Jersey.
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Everest is one of the most popular double glazing windows companies in the UK. The company offers a choice between uPVC, sustainably sourced timber and aluminium windows, all designed and manufactured in-house. In addition to double glazing, frosted glass, noise-reducing glass and safety glass, Everest also enables you to upgrade to triple-glazed glass for maximum energy efficiency. Secondary glazing is another option which provides discreet insulation.
How does double glazing work? (Image credit: Everest)
There are pros and cons to consider with every company, even one as acclaimed as Everest. Here are some of the advantages of buying Everest replacement windows:
Also consider Everest’s disadvantages:
Wood effect uPVC double glazing offers a stylishly sleek alternative to the more usual white uPVC (Image credit: Everest)
You kickstart your window project with a design visit with a consultant visiting your home, talking through your options and providing an obligation-free quote. Next, a surveyor will check that all the measurements are correct and confirm if the installation can go ahead safely. Your order will then be placed, with your windows being manufactured in the UK. Once this is completed, Everest will contact you to book an installation date.
After installation, you’ll receive a guarantee pack and FENSA certificate.
Everest is an excellent window provider. It produces high-quality replacement windows and frames to customer specifications, but the company’s high window costs may put some buyers off.
If you are looking for something equally reliable but a little cheaper, you should consider Anglian. The company’s warranties aren’t as attractive as Everest, but they do offer a standard 10-year warranty on all parts and labour and a 15-year guarantee on gas-filled windows. They also offer a range of designs and colours, and all uPVC windows are A++ energy efficient.
Sliding sash double glazing windows offer a traditional look to period homes (Image credit: Everest)
Everest doesn’t publish the cost of its windows online as they are made to measure. Pricing is affected by material, size, accessories and glazing options. According to comparison sites, you can expect to pay the following:
| Style | Cost per window (excluding installation and labour) |
|---|---|
| Casement | From £250 to £570 |
| Sash | From £500 to £1,050 |
| Tilt and turn | From £400 to £675 |
| Bay | From £400 per section |
Everest advises that windows should be cleaned twice a year in normal conditions. If you live in a coastal area or near a construction site, clean your windows more regularly. To clean your windows, use a commercial cleaning solution and soft cloth, taking care to avoid contact with the frames. Harsh steel wool and abrasive cleaners can scratch the window frames.
Wooden frames require extra care. They need to be sanded and repainted periodically, and you should avoid getting them too wet during cleaning. Any exposed wood should be treated with an appropriate product, such as wood oil, to preserve its integrity, and interior woodwork can be polished with beeswax and a soft cloth.
“Everest offers some of the most popular window styles, all in a range of materials – if you’re investing in double-glazed windows for a more energy-efficient home, then look no further. Everest’s double-glazed windows are A+ rated for uPVC windows, while triple glazing is A++ for all windows.”
“Everest is the second-largest double glazing installer in the UK with over 3% of the total double glazing market share. The company is one of the only UK double glazing installers to control every step of their production process from manufacture to retail and installation, and the only to maintain a product development team, design team, installation team, and sales team rather than contracting out labour. This gives Everest much more control over the total quality of its products, enabling the company to offer a premium experience. This is typically reflected in the price, which can be significantly higher than some other brands.”
“We are repeat customers with Everest, based on our experience of product quality and the friendliness of all members of the team. The ability of the company to make windows etc. that match the appearance of originals in a house built in the early 1900s is a distinct advantage. The fitting crews are careful, professional and tidy. Aftercare is responsive and deals with any problems that are reported – we had some minor ones that were fixed with simple adjustments to fittings. Overall, we are happy customers.”
“A great service from start to finish by staff and very happy with the installation of new windows and doors. Would highly recommend Everest.”
“The whole process was very professional, and the delivery was prompt. I was very pleased with the smooth progression of the whole process, and they fitted superb windows.”
Give your home a stunning new makeover with coloured double glazing windows (Image credit: Everest)
Everest is a leading window supplier in the UK, offering impressive guarantees, excellent energy efficiency ratings and highly secure Yale GrabLock systems. Despite a period of difficulty in 2020 when the company went into administration, it still has a high Trustpilot rating and various industry accreditations.
Everest’s generous warranties are a standout feature of this brand. Other window companies offer much shorter guarantees. You might even choose to pay an extra fee for the lifetime warranty, which can be transferred should you sell your house.
The price of Everest windows is high compared to other window companies in the UK, and its choice of finance options is limited. However, it’s a good choice if you have a considerable budget and flexible finance, as its quality is second to none.
Although there are huge advantages to double glazed windows, there are a couple of negatives to think about:
Generally, double glazing units are viable for between 25 and 30 years; however, this is dependent on the product’s quality and how well they are installed.
Known as secondary glazing, by adding an unobtrusive, independent layer of glass to the inside of your existing window, you can achieve the beneficial effects of double glazing.
The space between the two layers of glass, however, is not sealed and therefore can develop condensation, while the extra width of the additional frame may negatively impact the size of the window sill.
One of the many benefits of double glazing is that it adds to the security of your property. The gas sandwiched between the glass panels acts as a shock absorber, negating the effect of anything heavy hitting the glass, while the sealed units make it almost impossible to open the window and gain access from the outside. Many installers add high security locking systems to their double glazing, and offer security glass as an optional extra.
The colour you choose for your double glazing is a matter of personal choice, and many double glazing companies produce frames in a variety of colours, catering for changing tastes in property appearances and period homes. However, it is possible to paint uPVC windows, too.
Before beginning, it’s important to note that painting your windows can void their warranty, so we recommend checking this with your double glazing supplier. But if your warranty has expired, or you just fancy a quick makeover before updating your double glazing, painting the frames can be a good option.
According to Bespoke UPVC, you should only use a solvent-based paint that’s designed for use on hard plastics, and before you apply the first coat of primer, the frames should be sanded down. This not only removes any grease, but also provides a key for the paint to stick to.
To compile this Everest windows review objectively, we read professional and customer testimonials, technical documentation, brochures and forums. We then assessed the brand using a 100-point scoring system designed to evaluate the performance of window companies against the factors customers care about most.
These factors and their weightings included: