Triple glazing is a window that has three panes of glass housed within a frame, usually uPVC. Like double glazing, the spaces between the three panes are filled with insulating argon gas. Triple glazing is used in rooms that don’t get much sunlight to help with heat retention.
Our triple glazing has an energy rating of up to A++ with uPVC flush windows, helping reduce heat loss. This means your home feels more comfortable in colder months, meaning you use the heating less. This in turn means you use less overall energy, helping lower your energy bills.
Upgrading to triple glazed windows can add value to your home in two main ways. It can help increase your home's Energy Performance Certificate score, which can boost its appeal to buyers. New windows with a desirable colour or a sought-after style like flush windows can improve the look of your property, further increasing its appeal for would-be buyers.
Installing triple glazing can increase the security of your home too, with three panes of glass providing an additional barrier against intruders. Furthermore, modern triple glazed windows come with shootbolt locks or multipoint locking as standard. Our triple glazing options achieve the highest window security standards, carrying the police-backed Secured By Design accreditation.
Triple glazing stops warmth escaping your room while also keeping out the cold. Three panes of glass, two cavities filled with inert gas and warm-edge spacer bars dramatically reduce thermal transfer between inside and outside. This is perfect for colder rooms, but not ideal for rooms that get lots of sun, so we advise mixing and matching with double glazing for year-round comfort throughout the home.
The brilliant insulation properties of triple glazing means the inner pane of glass is warmer than with double glazing. This further lowers the chances of condensation forming on windows when humid air meets cold glass. Condensation on the inside of your windows can damage the frames and seals over time, so it's important to keep on top of it.
You can combine our triple glazing with your choice of window frame colour, with lots of options across our uPVC windows ranges.
White Knight
Golden Oak
Dark Woodgrain
White Woodgrain
Dual Anthracite Grey
Dual Cream
Dual Dark Woodgrain
Dual Golden Oak
Dual Sage GreenCreate a unique look or add extra privacy with our triple glazed glass options. Choose from a range of obscure glass designs or opt for one of our silver mist designs.
Add a unique look to your home with an etched design on your triple glazing. This decorative touch brings something different to a property, and we can create almost any design to complement and enhance your decor.
Give your room added privacy with obscured triple glazing. Whether for a bathroom, around a front door or a room on a busy road, choose from a wide range of Obscure glass options. Our obscured glass options offer different looks and designs to add a decorative touch as well as privacy.
Take a look at our different triple glazed window styles and how their energy ratings compare. All our triple glazed windows have at least an A BFRC energy rating, showcasing their excellent warmth-retaining abilities.
Modern triple and double glazing are both good choices for your home, but which is better?
Triple glazing is better than double for colder rooms because it retains more heat and blocks more cold air. However, double glazing works better in rooms that get a lot of sunlight, because triple glazing locks in more heat, making warm rooms too hot in summer.
That’s why we recommend mixing and matching double and triple glazed windows throughout your home, to keep it as comfortable as possible all year. Find out more about choosing double or triple glazing in our handy guide.
The British Board of Agreement provides independent accreditations for the construction industry. BBA-certified products are synonymous with quality. This accreditation covers our White Knight uPVC casement and tilt and turn windows.
The British Fenestration Rating Council (BFRC) verifies the energy performance of windows and doors in the UK. Installing BFRC rated energy-efficient windows will help save money on your energy bills.
The BSI Kitemark™ is one of the most recognised symbols of high quality products and safety standards. Anglian has 10 Kitemark accreditations, with six for windows alone.
The Fenestration Self-Assessment Scheme (FENSA) ensures replacement window and door installations comply with building regulations for England and Wales. You receive a FENSA certificate to keep as proof of compliance.
Anglian is a leading member of the Glass and Glazing Federation (GGF). The GGF is the most influential Trade Federation in the industry, recognised by government for their in-house technical expertise, which helps influence key legislation within our sector.
The ‘Made in Britain’ marque on all our products means they are made from start to finish in a British factory by British craftspeople.
Recovinyl is an initiative advancing the sustainable development of the European PVC industry by improving production processes, minimise emissions, develop recycling technology and boost the collection and recycling of waste.
TrustMark is a not-for-profit organisation operating a quality mark framework in the repair, maintenance and improvement sector. Registration with Trustmark demonstrates commitment to customer service, high standards and continual improvement.
A 10-year parts and labour guarantee is included in your Anglian double glazing price.
Our products are made from start to finish in a British factory by skilled craftspeople.
If you find cheaper like for like uPVC windows elsewhere, we'll match the price.
Live chat with our friendly British based experts, or book an appointment, 24hrs a day.
Find out more about the different types of glazing and how they keep your home warmer and more secure.
Learn why it’s worth considering new double or triple-glazed windows to attract homebuyers.
Find out about the benefits of both double and triple glazed windows and which one is right for you.
our questions about Triple Glazing, answered by us.
The cost of triple glazing will depend on a number of factors, including the size and style of the window, as well as how many you’re installing. Naturally, they tend to cost more than double glazing as they feature two gas-filled chambers and three layers of glass rather than one chamber between two layers of glass.
Yes, installing triple glazing also means installing new frames. The triple glazing, along with the frame, forms a sealed unit, creating the strength and thermal efficiency needed to function. Triple glazing is also thicker and heavier than double glazing, requiring slightly deeper frames to accommodate the glass.
Triple glazed windows are good in summer, but it depends on where they are in the home. Triple glazing lets in less of the sun’s heat, retains more warmth and reflects it back into your room more than double glazing. So, installing it in rooms that get a lot of sunlight would make them hotter than if you had double glazing, even though they let in less of the sun’s heat. Triple glazed windows are better suited to rooms that get little to no sunshine throughout the day.
You can still get condensation with triple glazing, but they are better at reducing it compared to double glazing. The extra insulation and thermal efficiency of triple glazing keep the pane of glass inside your room warmer, reducing the chance of condensation forming. It’s always best to wipe away any condensation to reduce the risk of damage occurring from the moisture.
On average, triple glazed windows cost about 15% more than double-glazed windows. This is due to the extra materials required to make triple glazing. That said, triple glazed windows have higher energy efficiency ratings than double glazed, further reducing heat loss. This, in turn, reduces the amount of energy you use to heat a room. The savings can make the higher cost of triple glazed windows more worthwhile in the long run.
Triple glazing is definitely worth it in cold rooms where you will feel great benefit in colder months. Triple glazing provides the best insulation, helping to retain warmth and help reduce your energy bills in winter. Triple glazing makes the most difference in north-facing rooms or any part of your home that’s persistently cold. Triple glazing can also add value to your property, helping increase its EPC rating.
