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Triple Glazing

Triple Glazing

Ensuring the best levels of thermal efficiency for your home, we offer triple glazing options for the homeowner. We manufacture most of our home improvements from our Clevedon based factory. Visit our showrooms in Bristol and throughout the South of England. Start your quote for triple glazing online today!

Energy Efficient Triple Glazing

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Triple glazing uses the same technology as double glazing, which works by trapping dense gas between glass panes to limit heat transfer. However, it uses an extra pane of glass and an extra pocket of trapped gas.

This enhances heat retention even more than double glazing and makes sure none of the outside cold enters your home. Enjoy a consistent temperature all year round. We are proud to be at the forefront of the industry, providing the most innovative products and bringing them into your home, such as triple glazing. Whether it is heat generated by the sun or heat that has been created indoors, the extra pane in our windows helps to maintain that heat and maximise energy efficiency. You could even see a reduction in your energy bills!

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Select your favourite designs, input your specifications, and we’ll send you a FREE window quote based on your design preferences.

Available Online, In-Store or At Home

Experience the freedom of obtaining the products you desire, tailored to your preferences. Our dedicated team is always available to assist you whenever you require assistance. Your satisfaction is our priority.

Made to Measure

We don’t believe in a one size fits all process here at Britannia Windows. Instead, we manufacture our triple glazing to your exact specifications from our Clevedon based factory. This ensures a perfect fit for your home, as well as the very best performance.

10 Year Guarantee

You can rest with total peace of mind when you choose Britannia for your home improvements. We are so confident in the quality of our triple glazing installations that we include a 10 year guarantee with all of our fittings. However, you’re more likely to have decades of performance.

Range of Designs

While performance is a key attribute of triple glazing, style can't be overlooked either. There is a huge range of designs on offer for homeowners looking to capture a distinct look for their homes. Because we manufacture our designs here in Clevedon, we can work with you for bespoke glass.

Finance Options

We know that upgrading your home’s windows and doors can be a big commitment. That’s why we have ways of making this easier for you. Our triple glazed windows and doors are available through our finance options to help you spread the cost of payment over a timeframe that suits you.

40 Years’ Experience

When entrusting your home to installers and fitters, you want to be sure that they’ll take the best level of care and dedication with your property. Here at Britannia Windows, we have over 40 years’ worth of experience. We’ll deliver a professional and considerate triple glazing fitting every time.

Accredited Products

You can buy with confidence when you choose Britannia windows for your home. With a range of accreditation, including CERTASS and Secured by Design, we deliver the most secure and high quality products for your home. Our triple glazing will meet all your performance expectations.

Customisation Options



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Suited to Your Home

Thanks to our bespoke manufacturing from our Clevedon based, we can ensure that our triple glazing is suited to your home. Instead of utilising a one size fits all process, we will manufacture our glass units to match your unique measurements. This ensures a smooth installation as there are no issues with the fitting. It will also ensure a fantastic performance from your new units.

While there is a practical reason for using a made to measure manufacturing process, it also opens the doors for customisations too. By making our designs to suit your style, we can offer a huge selection of decorative options for homeowners to choose from. Make your triple glazing stand out from the rest by working with your team to develop a truly bespoke design.

Frequently Asked Questions

Does triple glazing make a difference?

Triple glazing does make a difference as it is much more insulative than single or double glazing. To help us illustrate, we can look at the U-value of different materials. The U-value tells us how much heat is lost; the lower the U-value, the better insulation it provides. A brick wall has a U-value of 2.0, a double glazed window is around 1.2 and triple glazing is half that at 0.6.

What is the difference between double and triple glazing?

Double glazing insulates against heat and noise because it consists of two layers of glass separated by an air gap which is filled with argon. Argon is a dense gas that inhibits cold from travelling between the two panes of glass and is a great way insulating your home. Triple glazing uses exactly the same principle, but it adds yet another pane of glass and another air gap filled with argon. This provides more insulation because of the added pane of glass.

Is it worth replacing double glazing for triple glazing?

Triple glazing is more insulative than double glazing, and it is often used as standard in Scandinavian countries where the winters are much more bitter than those we experience in the UK. Making the switch from double glazing to triple glazing is most likely worth it if your double glazing is getting old and you live in a rural area where the temperatures drop sharply during the winter nights.

Happy Customers

Lady drinks coffee and watching through windows and doors

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Credit is subject to status and affordability. Terms and conditions apply. Authorised and regulated by the Financial Conduct Authority. Network Britannia Windows Limited FCA Register no. 738269 trading as Britannia Windows Bognor, Britannia Windows Bristol, Britannia Windows Eastleigh is an appointed representative of Ffenestri Limited FCA Register no. 716352 Kimberley Road, Clevedon, Somerset, BS21 6QJ is a credit broker, not the lender. Credit is provided by Novuna Personal Finance, a trading style of Mitsubishi HC Capital UK PLC. Authorised and Regulated by the Financial Conduct Authority.