Triple glazing is a hot topic at the moment – with energy bills sky-high, many homeowners are prioritising the energy efficiency of their home.

While triple glazing used to be a niche product, offered in extreme climates in other countries, UK businesses are starting to catch onto the idea.

What was once thought of as an extreme solution not needed for the UK climate is gradually becoming a more popular option, with homeowners looking to reduce their carbon footprint and lower their energy bills.

But is triple really better than double glazing? Which is best for your home?

Close Up Sliding Sash

Double glazing vs triple glazing – what’s the difference?

The easy (and quick!) answer is that double glazing contains two panes of glass, whereas triple contains three. But there’s a little bit more to it than that.

Another pane of glass also means that there is another small gap between the panes filled with gas for insulation.  Because of this, a triple glazed window will be thicker than a double glazed window.

Triple glazed windows also tend to be slightly heavier (due to the weight of the additional materials), meaning that they may not be suitable for every home.

Double glazing vs triple glazing – which offers more thermal insulation?

Because the third pane of glass increases the ability of the window to retain solar heat, triple glazed windows are more thermally efficient. This means they will keep your home warmer in the colder months and less energy will be needed. This will reduce your carbon emissions – and your bills! Our uPVC windows can reach U-values as low as 0.8W/m2.K with 44mm triple glazing.

The extra pane of glass also helps with noise reduction as well as energy savings!

uPVC Windows

Double glazing vs triple glazing – which is more expensive?

One of the main disadvantages of triple glazing is that it is more expensive than double. This is because it is made using more materials, and is also more complex to manufacture.

Triple glazing costs will vary slightly based on the types of glass used, the type of inert gas used to fill the gap, the window’s overall energy performance and the number of new windows being installed.

What are the benefits of choosing double glazing over triple glazing?

Some benefits of choosing double glazing over triple glazing include lower cost, easier installation, and more flexibility in terms of design options. Double glazing still provides significant energy efficiency improvements compared to single glazing, making it a popular choice for many homeowners.

Which is best for my home?

Whether double or triple glazing is best for you and your home will depend on your individual circumstances, the existing thermal efficiency of your property, the type and number of windows in your home, your budget and your home’s current condition.

While triple glazing does offer improved thermal efficiency and can help you save on energy bills in the long run, it is more expensive from the outset.

Brown Flush Sash

Not sure whether to opt for double or triple?

At The Nottingham Window Company, we know that it may not always be easy to decide on the best solution for your home. That’s why our expert team is on hand to answer any questions you may have, and help you make the right choice for you.

If you have any questions about double glazing vs triple glazing, or would like to know more about the window options we offer, please get in touch. You can contact us online, call us on 0115 866 00 66, or book an appointment at our showroom in Nottingham.