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Last updated: 13 March 2024

Triple Glazed Windows: Pros, Cons & Costs In The UK (2024)

Triple glazed windows
  • The advantages of triple glazing include better insulation, noise reduction, and adding value to a home.
  • Triple glazed window costs range between £390 to £3,350.
  • Installing triple glazed windows for heating is worth the cost if you live in a cold enough region otherwise, you may pay extra for minimal advantage.

In some instances, double glazing is not enough to stave off the cold or keep the energy bills down. This is why triple glazing has proved popular in Scandinavian countries, providing better insulation. However, will it be right for your home? We’ll go through the advantages of triple glazing along with the disadvantages and its costs to see if you’re a pane of glass away from a more efficient home.

However, if you’re interested in getting triple glazing for your home, you’ll need a reliable installer to help you out. At GreenMatch we have a wide network of UK-based, vetted window installers that are right for the job.

Using our free service will save you days of your time, as you don’t have to do the tedious task of researching installers yourself. It also enables you to directly compare installers’ rates from verified sources, so you can choose the best deal and be certain that you’re not overspending. Click the button below to get your free, non-binding quotes now.

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What is triple glazing?

Triple glazing diagram

So, what is a triple glazed window? As the name suggests, it involves taking double glazing to the next level by adding a third pane of glass. Between the 3 panes are 2 pockets of gas, which most of the time is either argon, xenon, or krypton.

The extra pane can improve energy performance by up to 50%. Aside from the additional layer, triple glazed windows tend to have stronger frames to handle the extra weight and can cost about 30% to 50% more than double glazed windows.

Triple glazed windows pros and cons

Triple glazed windows can be beneficial but they also come with some downsides. In some cases, double glazing may be the better option so it’s important to assess the benefits and problems with triple glazing.

Triple glazed window benefits

Here are just some of the ways your home could benefit from triple glazing:

Advantages of triple glazed windows
  • Noise reduction: Triple glazing thickness ensures that it can deflect sound waves trying to invade the home, making it ideal for noisy regions.
  • Better temperature control: The temperature coefficient of resistance for triple glazing is higher than that of double glazing or single-paned windows. Compared to double glazing, heat conservation increases by about 20%.
  • Increased efficiency: The extra window pane offers more durability, insulation, and toughness than other types of windows.
  • Better security: This extra-thick glass will last for years without any damage. It is also capable of withstanding strong winds and harsh weather.

It’s best to find a reliable installer so that they can properly assess your home and see if you can leverage the advantages of triple glazed windows in the UK. Usually, researching window installers can take days if done on your own. Our service can be far quicker and we have a wide network of vetted, reliable window installers you can choose from.

It can take as little as 30 seconds to fill out a form and find one in your area. Click the button below and we’ll provide you with up to 4 free, non-binding quotes from window installers near you.

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Disadvantages of triple glazing

Triple glazing isn’t without its downsides or drawbacks. Let’s take a look at some of the problems with triple glazing.

Disadvantages of triple glazing
  • Expensive: Adding an extra window pane to a window installation will certainly incur some extra cost. Triple glazed windows can cost about 30-50% more than double glazed windows.
  • Region-dependent effectiveness: The extra pane of glass may end up being an unnecessary addition in regions of the UK that aren’t extremely cold. Before installation, properly research or ask an installer whether it will benefit your home.
  • Less sunlight: Along with the cold, triple glazing may also keep out more sunlight, while double glazed windows can let in more.
  • Heavy weight: Triple glazing tends to be heavier than double. Consequently, your frame will need to be refitted to support the extra glazing, otherwise, there could be structural issues.

Needless to say, your windows will have to be closed for you to enjoy reduced levels of noise.

If you wish to benefit from the above-mentioned advantages, then we can help you get your new triple glazed windows installed as soon as possible. Usually, researching window installers on your own can be tedious and take up hours of your free time. At GreenMatch, we have a wide network of vetted window installers who we can easily connect you with so you can spend your free time however you like!

Click the button below and we’ll provide you with up to 4 free, non-binding quotes from window installers near you.

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Triple glazing cost in the UK

Triple vs double glazed window costs

Generally, a good rule of thumb for triple glazed window costs is to add 30% to 40% on top of the price of the average double glazed window.

How much are triple glazed windows in the UK?
MaterialCost of window
uPVC£390 – £2,025
Aluminium£950 – £3,525
Wood£585 – £3,350

These triple glazing window cost estimates do not include the cost of installation which will vary depending on the installer carrying out the work.

Triple glazing vs double glazing

The multiple triple glazed windows benefits can seem enticing but how do they stack up against double glazing?

Double GlazingTriple Glazing
CheaperMore energy efficient
LighterLower U-value
Harness more energy from the sunStronger and more durable

Double glazing can be lighter since triple glazed windows require a strong fitting to handle the weight. Triple glazed wooden windows can be especially heavy. Double glazing can also be cheaper, especially due to grants for windows and doors from government programs that do not apply to triple glazing.

Another difference is the u-value, which is used to measure the energy efficiency of windows. The lower the u-value, the better the window performs to help keep your home nice and warm.

Window TypePotential U-valuePossible Difference in Temperature Near Window
Double Glazing2.816°C
Triple Glazing0.8 to 0.618°C

The cost of double or triple glazing also depends on the style of window you choose. For example, sash double glazed windows will typically cost more than other styles because of their complex design.

In heritage properties or listed buildings, double or triple glazing may not be permitted. The best option then becomes secondary glazing, since it is far less disruptive. Check with your local authority to understand what rules are in place.

Is triple glazing worth it?

Yes, triple glazing is worth it if:

  • You live in an area cold enough to benefit from the extra layer
  • Want superior noise reduction
  • Want to reduce carbon emissions
  • Save on heating costs

While triple glazing costs are 30% to 40% more expensive than new double-glazed windows, it’s also five times more effective than older double glazing. For homes in cold regions, switching from double glazed windows to triple glazed can result in a remarkable 40% to 60% increase in energy efficiency with 20% more heat conservation.

You can make back the money in savings but it would probably take many, many years to earn the full amount back. However, if you’re looking to increase the value of your home, then triple glazing is a great way of appealing to potential buyers.

Even though the initial costs can be high, you can save money on installation by finding a reliable installer. However, this can take days of strenuous research and price comparisons. Luckily, we offer a better way that does away with all this hassle.

Whether you’re looking for replacement windows in Scotland, England, or anywhere in the UK, we’re here to help. We can connect you with up to 4 vetted window installers near you, whose quotes you can then compare to select the best deal, saving you time and money. Click the button below to get your free, no-obligation quotes now.

FAQ

Rawal Ahmed
Written by Rawal Ahmed , Writer

Rawal Ahmed is a writer at GreenMatch with an interest in sustainability and a background in background in tech journalism and digital marketing.

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