Best Double Glazing Companies UK: Who To Trust In 2025

Having double glazed windows installed in your home is now standard practice for most homes across the UK, thanks to leading double glazing companies making the installation affordable and straightforward. It’s one of the best ways to improve your home’s energy efficiency.

The thermal efficiency achieved helps modern UK homes become energy efficient in line with the government regulations that have been implemented to achieve net-zero by 2050. By opting for thermally efficient installations from a reputable double glazing company, the heat produced by your internal heating systems will work to a much greater effect. It keeps your home warmer for longer, so that you don’t have to spend inordinate amounts of money on your energy.

The government is making a massive push for this to become the norm for houses around the UK because of the potential dangers of climate change and to save British households money on their energy because of the spikes globally in the cost of oil.

For those still thinking about having double glazing installed in their homes, or those who are looking to update their installations, we wanted to take some time today to look over the top companies out there at the moment who are providing double glazing installations and break down the pros and cons of each!

Here at Double Glazing on the Web, we want to make sure that our customers are as informed as we are when purchasing home renovations. We’re double glazing experts, and we believe sharing our expertise is important so customers can get the best deal available to them.

The main contenders we’ll be going through today are Safestyle, Everest and Anglian. We’ll be using each double glazing company’s Trustpilot rating at the time of writing, and identifying the main strength of each.

Safestyle

Safestyle produces a variety of uPVC window styles and uPVC and composite doors, all fitted with modern double glazing. Don’t let the busy nature of the website put you off, it’s full of important info and competitive prices. This double glazing company is a reputable and well respected double glazing installer and has provided its services nationwide for over 25 years.

Safestyle is FENSA approved for its double glazing services and has a high customer satisfaction rating considering the sheer volume of customers they serve. Here is what one reviewer said:

What are the main positives?

Many of the reviews echo the statement that Safestyle offers a brilliant service, and it can take a while perusing their Trustpilot before you find a wholly negative review. They do exist however, with every double glazing company, but they are in the vast minority when compared to the sheer amount of positive reviews.

Safestyle’s main positive is their price matching service in which they will match any like for like quote that you get from any other double glazing company for your services including sales prices. Here’s what they’re site says on the topic:

“At Safestyle we know all about providing our customers with exceptional value – we’ve been doing it for years. To ensure this and so there’s never any doubt you’re getting the very best deal, we even promise to match any genuine quote.”

There’s very little to say against Safestyle on this matter. They offer the best price, so long as you provide them with the price offer from their competitor, and they’re local capabilities are excellent. They have Safestyle installers stationed all over the country in all major cities. As a national pick, Safestyle is an excellent choice.

Anglian

Anglian provides an extensive range of double glazing products, from windows, doors, conservatories, and more outside of double glazing. The website is well designed and offers a selection of pages that provide various pieces of information about double glazing and the other products that Anglian provides.

Anglian windows offer an energy efficiency rating across the board of A to A++, which is higher than most other companies’ B average. With this extra level of energy efficiency comes Anglian’s higher price point than the other major double glazing installers, however.

The Trustpilot reviews for Anglian are similar to Safestyle.

Things to consider about Anglian double glazing services

Wait times are sometimes an issue with Anglian, which can be seen as both a positive and a negative. After all, if they’re busy then it must mean they’re doing something right, but lengthy wait times can mean you’re losing money with inefficient windows and doors. If you’re still using single pane windows with single glazing, then any time you have to wait for an upgrade to triple and double glazing options is money wasted on energy bills. Local installers will likely have shorter wait times, and competitive prices to boot.

Everest

Like Anglian, Everest provides a wide variety of windows and doors fitted with double glazing and triple glazing from casement windows and sash windows to bay windows with aluminium frames and more. It is also fair to say that Everest is likely the most recognisable brand name of double glazing company for fitters in the United Kingdom. They have a wide network of local installers who take over the projects early in the planning stage so that customers feel that they are getting a local builder backed by a nationwide business.

All their products are made in Britain, and they claim to be at the forefront of double glazing products in the UK. There is little evidence to suggest that that claim is unfounded. They have many years of history and have become a household name.

Everest does, however have the lowest Trustpilot score from our options today. Of course, different customers have different experiences, but a more negative Trustpilot score is definitely a concern.

Everest reviews

As a nationwide provider of double glazing services, Everest do have an impressive reputation for consistency of service. However, their most impressive strength is their warranty period which can be extended for up to 20 years, but they offer 10 years as standard. They also offer a premium service lifetime guarantee, which protects your new double glazing installation for life.

With Everest you can be certain that your new windows and doors are exceptional and are built to last.

Double Glazing On The Web: Who Is The Best Double Glazing Company?

Here at Double Glazing on the Web, we consider ourselves experts in the UK’s vast network of double glazing installers. We can provide you with the best prices from around the industry for your projects with our expertise, and we also include both national and local installers to help you find the best possible price for your installation.

And don’t worry price isn’t all we’re concerned about. We look at your project and find the installers with the best reputation. Our entire network of installers are vetted by us and we ensure they have appropriate guarantees and accreditations to protect you.

Remember, whilst the three big names we’ve discussed today can offer a great service, they might not be the very best double glazing company for you. We can help you there.

If you would like to start a quote with us today, please feel free to use our quick and easy online pricing tool! We’re able to provide you with a comparison of accurate prices from around the nation so that you can skip all of the tedious research and get down to planning your double glazing installation!

We look forward to hearing from you!

Conclusion

Each double glazing company has its own strengths, but don’t think just because they’re big names, they’re your only options. Smaller, local installers may have greater availability for a faster installation and be able to provide you with a more competitive price as they try to make an honest living without having to satisfy shareholders as some of the bigger companies will.

While all 3 companies normally have tremendous critiques on Trustpilot, it’s important to consider your specific wishes and budget whilst making a decision. By operating with an informed aid like Double Glazing at the Web, you could effortlessly compare fees and discover the best installer for your double glazing project.

FAQs

What are the main benefits of installing double glazing in my home? 

Double glazing offers numerous benefits, along with stepped forward power efficiency, reduced noise pollutants, expanded domestic safety, and higher temperature management. By putting in double glazing, you can save money on your energy bills and maker your home more comfortable too.

How do I know which double glazing installer to pick out for my mission? 

When selecting a double glazing installer, don’t forget elements including the corporation’s popularity, client critiques, product quality, guarantee alternatives, and pricing.

It’s additionally useful to use a useful resource like Double Glazing at the Web, which could see you bag significant savings of up to 40% compared to comparing installers on your own.

Are there any incentives available for putting in double glazing? 

While there are presently no direct incentives for installing double glazing, having an energy-green domestic home will save you money and prepare your home for a greener future. Additionally, through enhancing your property’s energy performance, you’ll be contributing to the UK’s goal of reaching net-zero emissions by 2050.

How long does it commonly take to install double glazing? 

The installation time for double glazing can vary depending on the dimensions and complexity of your task. However, even the most complex installations may be completed inside a few days. Your chosen installer will provide you with a more accurate timeline when they know more about the project requirements.

What upkeep is needed for double glazing? 

Double glazing typically calls for minimum preservation, consisting of occasional cleansing with mild cleaning soap and water. The lifespan of double glazing can range from 20 to 35 years, depending on the materials and location of the windows and doors and what it’s exposed to, so they’re very low maintenance and require little input.