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Windows provide natural light and ventilation, making them an essential part of your property. Thanks to the advanced insulation properties of double glazing, your windows can also reduce your heating bills by up to £260. But finding the right installer can be time consuming, especially when there are over 12,000 double glazing companies to choose from.
Instead of spending hours searching online for the “best double glazing companies near me”, read our reviews for help to make the right choice. Our experts have thoroughly researched the UK’s largest window companies, comparing double glazing prices, available materials, product quality, warranties, brand reputations, and customer satisfaction.
Our top pick is Anglian for its high-quality, durable windows. It also provides a wide range of designs and a recycling scheme that can save you up to £1,000.
Looking for a quick quote? Fill in your details below, and we’ll connect you with double glazing installers near you. Installers will need access to your property for accurate quotes.
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Our unbiased comparisons focus on finding you the best value for your investment. We conduct rigorous market analysis, evaluating double glazing companies based on their product quality, prices, customer service, warranties and honest customer feedback. Experts meticulously research and verify our information, helping you to make informed decisions about the best double glazing company for your needs.
| Provider | Price per window | Finance options | Guarantee | Trustpilot score | Range of materials | Energy rating Supported |
|---|---|---|---|---|---|---|
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£500 – £910 | 12 – 180 months at 12.9% APR representative | 10-year guarantee for all parts and labour; 10 – 15 years for gas-filled windows | 3.9 stars | uPVC, aluminium, wood | A or A+ for double glazing uPVC; A++ for triple glazing |
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£600 – £1,800 | 12.9% over 36 months | 10-year guarantee for parts and materials; 15-year warranty against condensation for aluminium and uPVC casement, flush, tilt and turn and triple glazed windows. 30-year guarantee for timber | 4.0 stars | uPVC, aluminium, wood | Up to A++ for double and triple glazing |
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£250 – £910 | 36 – 96 months at 12.9% APR representative | 15-year guarantee on all clear double glazed units; 10 years on all other parts and decorative glazing | 4.0 stars | uPVC | A |
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£250 – £1,050 | Buy now, pay later in nine months at 16.9% APR and monthly payments at 12.9% APR | 10-year guarantee | 4.8 stars | uPVC | A+ |
With deep roots in British manufacturing, Anglian Home Improvements is a leading double glazing company that offers its services throughout England, Scotland and Wales. The company’s durable, well-made products include double and triple glazed windows, doors and conservatories.
With Anglian’s double glazed windows, you can improve your home’s security, insulation and energy efficiency. The installer’s impressive range of window styles and finishes caters to varied tastes and needs, and its robust recycling scheme could save you up to £1,000 on your new windows.
Anglian has a Trustpilot rating of 3.9 with over 33,000 customer reviews. As well as providing low-rate financing options, the company has a 10-year guarantee for all parts and labour and a 10- to 15-year guarantee for all sealed glass units.
Read our full Anglian windows review.
Serving England, Scotland and Wales, Everest is one of the UK’s top double glazing installers. With a Trustpilot rating of 4.0, the company has a reputation for excellent craftsmanship. It provides an extensive range of windows, doors and conservatories, including energy-efficient and noise-reducing options. As part of its commitment to quality and innovation, Everest offers triple glazing as the standard for new installations.
As of May 2024, Anglian Home Improvements acquired Everest’s customer order book, brand, intellectual property and other select assets.
As a result, the guarantees and warranties that earned Everest its rating for “Best Warranties” remain valid. They are insurance-backed and administered by Home Improvement Protection, which is authorised and regulated by the Financial Conduct Authority.
Everest provides a 10- or 20-year warranty for uPVC and aluminium windows and 30 years for timber windows. You can also get lifetime cover (for an additional cost), which provides protection against faulty products or installations. Low-rate finance options are also available, although this excludes properties on the Isle of Man.
Read our full Everest windows review.
Now owned by Anglian Home Improvements, Safestyle has a reputation for excellent customer service and competitive pricing, resulting in a Trustpilot score of 4.0. The company offers a broad range of windows and doors to improve your home’s energy efficiency, and its like-for-like price promise ensures no other supplier will provide the same quality of product and service at a lower cost. The installer’s comprehensive sustainability scheme also recycles as much material as possible from its customers’ old windows.
Safestyle operates throughout England, Scotland and Wales, and its clear double glazing units come with a 15-year warranty. A 10-year guarantee covers all other window parts and decorative glazing.
Read our full Safestyle windows review.
A family-owned business, Crystal Windows has an extensive range of products, including uPVC windows, doors and conservatories that are aesthetically pleasing and energy efficient. The company prides itself on its personalised, customer-focused service that doesn’t stop at installation but continues into aftercare, which is reflected in its Trustpilot rating of 4.8.
As well as providing a 10-year, no-quibble guarantee for parts and labour, Crystal Windows offers a monthly payment plan and a “buy now, pay later” finance option.
While based in Essex, this company also serves Hertfordshire and the surrounding areas.
The following double glazing installers also provide good service and are worth considering.
Britelite
Founded in 1970, Britelite Windows is an accredited window provider that focuses on security and energy efficiency. The company offers double or triple glazed glass in uPVC frames and provides a choice of several styles of window, including casement, sliding sash, traditional Residence 7 and Residence 9.
Britelite provides a 10-year transferable warranty and serves customers in London, Kent, Sussex, Essex and Surrey.
Britannia
Britannia was founded in 1982 and has since established a good reputation for reliability. It offers flexible payment and financing options, including a “buy now, pay later” plan, and there’s no APR for purchases over £3,000. The company’s double glazed windows come in uPVC or aluminium, have an energy-efficiency rating of A+ and are available in various styles.
Britannia serves customers in the southeast and southwest of England.
The Window Energy Rating grades the energy performance of windows in the UK. These ratings range from A++ (most efficient) to E (least efficient).
Individual expectations and experiences usually influence the best double glazing company for customer service. However, by researching the company’s professionalism, response times, communication quality and after-sales service, you can get a general idea of the installer’s typical approach to customer service.
Double glazing companies with reputations for good customer service (such as Crystal Windows) are often praised for their professional installation teams, responsive customer support and reliable aftercare. However, before making a decision, be sure to check the most recent customer reviews and ratings, as a company’s customer service quality can change over time.
Check out our map below to get up to four no-obligation quotes from high-quality trusted installers.
When considering a particular double glazing provider, check that the company has a good reputation. Look at local business directories and listings, which may provide customer testimonials and basic information about companies operating in specific regions. Such reviews can provide vital information about each provider, such as its reputation, product quality, pricing, warranties, finance options and customer service.
Ask your friends, family members and neighbours to share their experiences with double glazing window companies. While online reviews may offer a broad perspective, you can’t always rely on their accuracy. Personal recommendations, meanwhile, often provide more valuable insights, helping you to learn more about the quality of a company’s services.
People you know are also more likely to provide details about what they experienced during an installation, such as the level of disruption, the punctuality of the workers and the cleanliness of the work site. They can also tell you whether a company stuck to the agreed budget and completed its project on time.
You can also ask your local DIY store for help in finding a reputable double glazing company, as such stores can be great sources of information. As hardware suppliers share quality, reliability and customer satisfaction values with local service providers, they often develop a professional relationship.
Several members of the Independent Advisor team have experience with choosing double glazing companies and having new windows installed in their homes. To help you choose the provider that best meets your needs, here are some of our key tips.
Our house is in a Conservation Area, so we had to apply for planning permission to install replacement timber windows. We chose a local supplier who knew the preferred style for the region, as this helped us to deal quickly with any amendments from the planning officers. The company also offered a very competitive price for bespoke work, and our neighbours provided great recommendations.
I chose Anglian Home Improvements to swap my patio doors for French doors and replace my kitchen window, as the company had a good offer on its windows and provided remote appointments. The process was straightforward: a technician came out to measure my windows, and the installation followed soon after, with minimal disruption and little mess afterwards. When I had an issue with the door alignment allowing in cold air, Anglian fixed it free of charge. Overall, I’m very happy with Anglian. My one small gripe is that I was only given one key for the window, whereas Britannia provides multiple copies.
Remember to consider local companies as well as national brands when searching for a double glazing provider.
Opting for local installers could mean lower travel costs and shorter wait times, and these companies often have the same products as national providers. If you live in a remote area, local companies are your best option, as some larger companies may not operate there.
Any reputable local provider should be able to provide made-to-measure and bespoke windows in various styles. Local companies may even have a wider range of materials – such as wood and aluminium – than some of the bigger providers. It’s also possible that your neighbours, friends and family members may have experience with local double glazing companies, allowing them to share helpful insights into their product quality and customer service.
Most companies have several ways to contact them, so you can choose the one that works best for you.
For nearly 20 years, ADM Improvements has been installing double glazing across the South East. The company’s director, Antony Matthews, spoke to our experts.
With up to five installations a day being carried out, Antony says the company is busier than ever, and his industry contacts report the same trend across the country, with an increase in residential installations.
Many customers are only replacing specific windows, usually the front-facing ones, allowing them to save money while still improving their home’s appearance and energy efficiency. This means they can afford coloured options or different styles, such as sash or bay windows.
Local double glazing installers provide more personalised customer service, and customers often feel more involved in the project when they can contact the installer directly instead of dealing with a help desk. As any questions or issues are resolved much quicker, this improves the overall experience.
To receive up to four double glazing quotes from local installers, fill out our form, following these four steps:
Contact a double glazing company to get more energy-efficient windows if your old ones are draughty, leaking or letting in noise. Check to see if there are government grants that could save on costs, and try to plan the installation for a time when it will be least disruptive.
Installing new windows is a complex process that requires technical skills, so it’s best to hire a professional double glazing company. Professionals have specialised equipment and can offer expertise, quality assurance with guarantees and compliance with building regulations. They are also trained in safety procedures.
To determine a double glazing company’s reliability, look for credentials (FENSA or Certass). Check the installer’s online reviews and make sure it has valid insurance coverage, provides detailed quotes and offers clear contract terms.
Anglian Home Improvements is now the largest double glazing company, having taken over Everest and Safestyle. With its extensive range of products, country-wide operations and good customer service, Anglian is a leader in the double glazing market.
On average, uPVC double glazing windows last between 20 and 25 years. Aluminium can last up to 30 years and timber will endure for 50 years or more. However, with proper care and maintenance (such as cleaning regularly and checking for any signs of wear), you can extend the typical lifespan of your windows. A long warranty indicates that a double glazing company has confidence in its products.
To thoroughly examine and evaluate products, we use 34 distinct criteria to ensure that our window reviews are as comprehensive as possible. The final rating influences our ultimate recommendation and is determined by each window’s performance across these data points.
Some of the most important features we consider when reviewing windows include:
Each criterion is categorised as follows:
To ensure our content is as accurate and current as possible, our team of in-house fact-checkers verifies the details in all our window articles. Read our article on how we cover windows if you wish to learn more about our process.
