Triple Glazing - Triple Glazed Windows Range From Anglian

Our A+ rated triple-glazed windows are the perfect choice for a warm and energy-efficient home. The third pane of glass improves heat retention, helping to save on your energy bills.

Triple glazing is ideal for north-facing windows or those where there isn’t much natural sunlight. Here, it provides the best insulation properties compared to double glazing. This means a triple-glazed window isn’t always needed in every room. Mix and match your windows to suit the aspect and elevation of your home.

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What is Triple Glazing?

Triple-glazed windows have three panes of glass, one more than double-glazed. The space between the glass is filled with an extra layer of insulating inert gas, like argon. Together with the third pane of glass, triple glazing often has a higher energy rating than double glazing. It helps to keep your home warmer, quieter and safer.

Explore our Triple Glazing Styles

Casement Windows, available from Anglian Home Improvements

uPVC Casement

Up to A+ energy rated
UK’s most popular
Cost-effective choice

uPVC Flush

Up to A++ energy rated
Modern, premium look
BBA Accredited

Tilt and Turn

Up to A-rated for energy efficiency
BBA Accredited
Two-way inward opening

Bay Windows

Made-to-measure
Bow, square and splay designs available
Choice of configuration and decorative glazing

Reasons to Choose Triple Glazed Windows

Increase Energy Efficiency

Our triple glazing is A+ rated as standard, but can reach up to A++ with uPVC flush windows. Increased efficiency means you use less energy to heat your home, lowering your bills.
Add Value to Your Home

Triple glazing improves overall energy efficiency of your home, increasing your Energy Performance Certificate score. Getting a higher rating will add value to your home.
Decrease Outside Noise

The three glass panes reduce external noise penetrating your windows. Perfect for city homes and those on main roads.
Enjoy a Warmer Home

Triple glazing stops warmth escaping your room, while at the same time keeping the cold out. This makes them perfect for colder rooms that don’t get much sunlight.
Reduces Condensation

The extra insulation in triple glazing means a warmer inner glass pane. This lowers the chances of condensation forming when humid air meets cold glass.

Triple glazed UPVC windows and French doors finished in white on large family home from the Anglian windows and doors range

Working with the Best Industry Bodies to Install the Best Triple Glazing

BBA Certificate for uPVC windows

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.
BFRC

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.
BSI Kitemark

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.
FENSA

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.
GGF

Anglian is a leading member of the Glass and Glazing Federation (GGF). The GGF monitors the performance of member companies, ensuring the standard of products and their installation remains consistently high.
Made in Britain

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 Plus

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

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.

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Compare Triple Glazing Styles

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A energy rating

A+ energy rating

A++ energy rating

Casement Windows

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Flush windows

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Tilt & Turn windows

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Bay windows

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Triple Glazed Windows Gallery

White triple glazed UPVC casement windows with white window handles and central mullion from Anglian Home Improvements

Triple glazed UPVC windows and French doors finished in white on a shaped porch from Anglian Home Improvements

White UPVC triple glazed casement windows and French doors with matching white handles from the Anglian windows and doors range

Triple glazed UPVC casement windows finished in White on porch from Anglian Home Improvements

Exterior view of open white uPVC window with triple glazing from Anglian Home Improvements

Interior view of white uPVC triple glazed window from Anglian Home Improvements

Choose Anglian for a National Company Local to you

10-year Guarantee

A 10-year parts and labour guarantee is included in your Anglian double glazing price.

Made in Britain

Our products are made from start to finish in a British factory by skilled craftspeople.

Price Match

If you find cheaper like for like uPVC windows elsewhere, we'll match the price.

Decide if Triple Glazed Windows are right for Your Home

How do Double and Triple Glazed Windows Work?

Find out more about the different types of glazing and how they keep your home warmer and more secure.

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Double glazed timber casement window finished in white with cottage bars from the Anglian timber window range

Do new Windows add Value to Your Home?

Learn why it’s worth considering new double or triple-glazed windows to attract homebuyers.

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White timber casement living room window with Georgian bars from the Anglian casement window range

Should you get Double or Triple-Glazing?

Find out about the benefits of both double and triple-glazed windows and which one is right for you.

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White wooden cottage style bathroom window with shutters from the Anglian cottage window range

Window Energy Efficiency

Find out the difference between an A++ and an E rated window and why Anglian install A-rated as standard.

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See what New Windows look like on your Home

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Design your doors and windows online

Style
Colour
Hardware

Your Questions Answered by Us

Is triple glazing worth it?

Triple glazing is definitely worth having. Triple glazing provides the best insulation for your home, helping reduce your energy bills in winter. Triple glazing makes the most difference in north facing rooms or rooms more exposed to the weather. Triple glazing can also add value to your property, helping increase its EPC rating.

Is triple glazing better than double-glazing?

Triple glazing is better than double for colder rooms because of its insulation qualities. It stops heat escaping the rooms that need it most. However, double glazing works better in south-facing rooms because it lets in more of the sun’s heat, but doesn’t lock it in like triple glazing does.

How long do triple-glazed windows last?

How long triple-glazed windows last depends on their frame material and where they are placed, but they can last for from 20 years upwards. With proper care and maintenance, this can be even longer. Our White Knight uPVC in our triple-glazed casement and tilt and turn windows hold the BBA accreditation, which means they can last more than 35 years.

Does triple glazing cost more than double glazing?

On average, triple-glazed windows cost about a third more than double-glazed. This is due to the extra materials required to make triple glazing. Typically this means you are paying for a higher energy rating than double glazing, to keep rooms warmer for longer and reduce the amount of heating you use. There is usually a bigger saving over time versus double glazing.

Is triple glazing good in summer?

Triple-glazed windows are good in summer, but it depends 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.

Explore similar products

Casement Windows

Cream flush casement window product tile from Anglian Home Improvements

Flush Windows

Tilt and Turn

Made in Britain

10-year guarantee

UK's Number 1<br /> Home Improvement Provider

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Our Accreditations and Licenses

The British Board of Agrement provides certification on the quality of our products.
Anglian’s PVC-U Casement and Tilt & Turn windows have enhanced security performance.
The British Fenestration Ratings Council is the UK’s national system for rating energy efficient windows.
The Fenestration Self-Assessment Scheme ensures window installers comply with buildings regulations in England & Wales.
Anglian is a leading member of the Glass and Glazing Federation (GGF).
PVC Industry initiative to improve manufacturing, minimise emissions and develop recycling practices
TrustMark is a government endorsed not-for-profit organisation that operates through more than 30 scheme operators.