Compare Double Glazing Prices & Save up to 47%
» Enter your location and requirement » Top 38+ trusted companies compete » Best 4 custom quotes delivered within 1 hour » 100% Free & NO obligation Aluminium Window Handle
Installing double glazing is one of the largest investments you can make in your home. For this reason, it is crucial to carefully research your options and choose the company that can offer you the best value for your money.
While there are thousands of double glazing installers across the UK, including small local installers, the following include the best and biggest glazing companies.
In this guide you will find:
While some companies are better than others, your choice should depend on which company offers the most value to you. It’s important to get and compare direct quotes to see what each company offers in your area for your specific home before you decide.
Everest is the second largest double glazing installer in the UK with over 3% of the total market share. The company is one of the only UK double glazing installers to control every step of their production process, from manufacturing to retail and installation. They are also the only company that maintains an in-house 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 their 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.
Double Glazing Range – Everest maintains the largest range of double glazing windows in the UK. Their store includes a range of customisable windows, which you can choose based on individual features, for a total of over 700,000 different combinations. These include uPVC, timber, and aluminium frames in casement, sash, dual-turn, and tilt & turn styles. Their product selection includes:
Guarantee – Everest offers the most comprehensive warranty in the industry. In addition to the standard 10-year guarantee on all windows, Everest offers:
Quality – Everest designs, manufactures, and instals all their own windows to a very high quality standard – as you might expect from one of the best double glazing brands in the UK. While more expensive than some of their competitors, Everest offers leading products in terms of security, energy efficiency, and construction.
Location: HQ in Cuffley, Hertfordshire. Manufacturing plants are located in Kent, Sittingbourne, and Treherbert, Wales.
Area: Most of Great Britain including Scotland, Wales, East Anglia, London, Midlands, North East England, North West England, South England, South West England and Yorkshire.
Everest’s latest window products:
Anglian is one of the largest window installation companies in the UK, with almost 60 years of experience and more than 31,000 reviews in Trustpilot. Anglian holds accreditations such as Made in Britain and Secured by Design, and they are active members in trade associations like FENSA and TrustMark.
Double Glazing Range – Anglian offers casement, cottage, bay, sash, and tilt & turn windows in wood, uPVC, or aluminium. Windows typically feature an A to AAA+ energy rating with double or triple glazing available, as well as secondary glazing. Anglian also offers a wide variety of glass options, including designer collections like Laura Ashley, giving you a broad product selection to choose from.
Guarantee – Anglian offers a 10-year guarantee on all parts and labour for windows, plus a 15-year guarantee on gas sealed units.
Quality – Anglian offers very high quality doors and windows, and they manage the entire manufacturing and sales process. Their Made in Britain guarantee ensures that all products are produced ethically, ensures that jobs benefit the local economy, and ensures more quality control than international manufacturing. Anglian is the only double glazing installer in the UK to offer 14 Energy Savings Trust endorsed windows.
Area: Most of the United Kingdom, except for Ireland. Their service area includes Scotland, North East, North West, Yorkshire and the Humber, London, South West, South East, East, Midlands and Wales.
Anglian’s latest window products:
First Home Improvements was founded as Debbage & Tubby in 1971. The company was restructured in 2008: Debbage & Tubby focused on manufacturing while First Home Improvement was created as a new business unit dedicated to sales and marketing.
You can order windows from First Home Improvements with a £100 deposit and they offer interest-free financing options.
Double Glazing Range – First Home Improvements offers a wide selection of double-glazed window types:
Double-glazed windows from First Home Improvements have an A+ energy efficiency rating. They are available in solid colours and with wood grain finishes.
Guarantee – First Home Improvements offer a 12-year warranty for their entire selection of windows.
Quality – UPVC windows from First Home Improvements are compliant with the BS7950 standard and tested for more than 30,000 opening cycles. They are corrosion resistant and designed to withstand harsh weather conditions. Although their warranty coverage is 12 years, these windows are designed for 42 years of use.
Service Area: Their showrooms are located in Bournemouth, Braintree, Bury St Edmunds, Coventry, Diss, King’s Lynn, Leicester, Lenwade, Margate, Milton Keynes, Newhaven, Norwich, Newbury, Portsmouth, Rayleigh, Southampton, St Neots and Surbiton.
First Home Improvement latest window products:
CR Smith is a Scottish home improvement company with more than 100 years of experience and over 350 employees. CR Smith have their own manufacturing plant, which has been recently expanded with investments of over £3 million. They make their own UPVC window brand, called Lorimer.
CR Smith offers multiple financing options, which include 4-year loans at 0% interest rate and 3.9% APR loans with zero payments for 12 months.
Double Glazing Range – The Lorimer windows manufactured by CR Smith are available in four different types:
All Lorimer windows have an energy efficiency rating of A, which exceeds the requirements of Scottish building regulations. Lorimer windows are made of UPVC with timber sills, and there are multiple design options:
Guarantee – Lorimer windows are covered by a 10-year product and installation guarantee, which can be transferred to another owner in case you sell your home.
Quality – All Lorimer windows are made-to-measure, making sure they fit properly on your walls. They meet the energy efficiency requirements of Scottish building regulations.
CR Smith designed the Lorimer windows to mimic the appearance of traditional timber windows. They are made of UPVC, but their sills are made of real timber.
Service Area: Offices in Glasgow, Inverness, Aberdeen and Cowdenbeath.
CR Smith latest window products:
Evander offers a wide range of services for homeowners, commercial properties and insurance companies. They specialise in glazing and locksmith services, and they work with over 120,000 residential and commercial properties each year. Since 2016, Evander has been owned by VPS Group, a leading provider of property security services.
Double Glazing Range – Evander provides a wide range of customisable windows with UPVC, timber or aluminium frames. They offer both double and triple glazing, and their windows are approved by insurance companies.
Evander offers windows with B-rated energy efficiency as their standard option, but you can request an upgrade to A-rated glazing.
Guarantee – Evander offers a 10-year guarantee for UPVC and aluminium windows, and a 5-year guarantee for timber windows. Evander also offers a 1-year repairs and workmanship warranty for all home improvement services.
Quality – All the windows installed by Evander are approved by the insurance industry, and they have experience working with the top 20 insurers in the UK. Evander has a dedicated manufacturing plant, and your windows can be customised to fit openings of different sizes.
Service Area: All locations in the United Kingdom.
There are also companies that only manufacture the windows, which means you must look for your own installer. You can either buy directly or ask your installer to buy the windows from these companies and then install them. Some of these companies have a recommended installer database that you can peruse.
In some cases, choosing your double glazing installer will come down to which company offers the lowest price.
Everest focuses on premium windows with higher prices. This makes them a good option if you are more concerned about quality, longevity and warranty coverage.
Anglian is characterised by their broad product selection, offering both affordable and premium window options.
While small double glazing companies can sometimes offer a better price, it’s often in your best interest to choose a larger company anyway. Why? Larger companies can afford better warranties and guarantees, and many of them are insurance backed. This means that even if your installer goes out of business, your guarantee will still be honoured.
Larger companies can also afford faster installation, offer better sales and discounts, and can install in more areas. If price is your absolute biggest priority, you should compare quotes and try to find the lowest-priced installer with a quality guarantee.
There are also companies that only manufacture the windows. For the installation, you have to contact one yourself. You can either buy direct or ask your installer to buy the windows from these companies and then install them. Some of these companies have a recommended installer database that you can peruse.
In some cases, choosing your double glazing installer will come down to which company offers the lowest price. In this case, companies like Anglian and Safestyle will typically stand out. However, if you are concerned about quality, longevity, warranty, or having more options, Anglian will stand out as well.
When picking the best double glazed windows for your home, you have to consider four important factors.
The most popular material for double glazing is uPVC. Timber/wood frames are also a good option since they are the most stylish and the best looking, perfect for more traditional homes. Aluminium frames are also available, they are modern looking and can be had in multiple colours.
If you’re ready to install double glazing in your home, use our free tool to find and compare quotes from the top installers in your area. We’ll request quotes for you, so that you can save up to 37% and get a better idea of which companies offer the most for your money. It’s completely free and there’s no obligation.
Ollie is the director of Ecopreneurist, with a string of successful publishing brands under his belt, he aims to make the world a better place by showcasing only the best, unbiased and reliable content on the web!
Leonardo David is an electromechanical engineer, MBA, energy consultant and technical writer. He has also been writing articles about energy and engineering topics since 2015.
1000’s of people like you got cheaper windows & doors with Ecopreneurist®
Compare in your own time
Get fresh content from Ecopreneurist
Who Else Wants Cheap Double Glazing?
Aluminium Section Window ecopreneurist.com Capital house 61 Amhurst Road London E8 1LL