myjobquote

Home Cost Guides Triple Glazed Windows CostArticle

Triple Glazed Windows Cost

By Sam

Last updated 11th October 2024 - Reading time: 11 mins

At a Glance

The average cost of triple glazed windows fitting is around £4,000 in the UK.
Installing triple glazed windows typically takes 3 days to complete.

In this guide, you'll find the following:

A breakdown of how much triple glazed windows cost in 2024, including the cost of triple glazed windows for different-sized houses in the UK.
How long it takes to install triple glazing, what's involved in fitting new windows, and things you may need to consider.
How to find and hire a window fitter near you.

Are you considering installing triple glazed windows?

In this guide, we breakdown the prices of triple glazing windows for different house sizes and types.

This makes it simple and easy for anyone to calculate how much triple glazed windows cost to install in their home.

We'll also discuss the advantages and disadvantages of triple glazing and is triple glazing worth it?

Looking for an idea of the cost of triple glazing? On average, triple glazing costs anywhere between £2,000 – £5,000 in the UK. However, the price is dependent on various factors (which we'll cover in this guide).

Just need a quote?

We have a range of local window fitters ready to offer you a free, no obligation quote!

For all the information you need about the cost of triple glazed window - check out the guide below...

an open triple glazed window installation in the UK

Average Triple Glazed Windows Cost:

Depending on the complexity of the job, it usually takes 3 days.

£4,400

How Much Does Triple Glazing Cost?
- Triple Glazed Window Prices
Things to Consider About Triple Glazing
Doing it Yourself
Triple Glazing Checklist
FAQs
Sources

How Much Does Triple Glazing Cost?

The cost of triple glazing can vary based on several factors. For insights into how the broader construction industry impacts these costs, you might want to take a look at recent construction stats.

Triple glazing simply uses three panes of glass within a sealed frame instead of the more traditional two panes. Between the three panes are small gaps which are filled with air or a gas such as Argon.

So, although glass conducts heat fairly well, double and triple-glazed windows reduce this heat loss using the layers of air/gas in between the panes, making it a lot harder for heat to escape.

Triple glazing is expensive but obviously even better when it comes to heat insulation, so it is most popular in Scandinavian countries and other regions with very cold winters.

In the UK right now, double glazing is still more popular, but triple glazing is rapidly catching on. Triple glazing can help to combat heat loss during the cold winter months, and it does the same job as double glazing, but better!

Triple glazing is, however, more expensive than double glazing, costing roughly 33% – 50% more for exactly the same style of window. Fitting triple glazing is beyond most DIY enthusiasts, so local joiners or window fitters will be required.

Often, the company selling the windows will also provide an installation team. However, there is nothing to stop you from shopping around for windows directly from the manufacturer online and then hiring a fitter to install them for you.

It's crucial that triple glazed windows are fitted correctly. Poorly fitted triple glazing will simply be a waste of money!

With MyJobQuote, you can easily and quickly find a local window fitter to install triple glazing for you.

And it's simple: Just fill in a few details about the job, along with your contact information, then sit back and let window fitters get in touch with you to provide quotes.

Is triple glazing always better than double? Just wondering before I start upgrading my windows.

"Triple glazing is more energy efficient and blocks out road noise more than double glazing"

Safeview Home Improvements Ltd

Triple Glazed Window Prices

So, how much is triple glazing for different-sized houses in the UK?

The table below shows the cost of triple glazing for a 3 bed house with a different number of windows, a 4 bed detached house, and a typical 2 bedroom flat in the UK.

Job Description	Duration	Material Cost	Labour Cost
Triple glazing supplied and fitted to typical 2 bedroom flat with 4 windows	1 – 2 days	£1,600	£375
Triple glazing supplied and fitted to an average semi-detached 3 bedroom house with 9 windows	2 – 3 days	£3,550	£700
Triple glazing supplied and fitted to a detached house with 3 bedrooms and 12 Windows	3 – 4 days	£4,800	£900
Triple glazing supplied and fitted to 4 bedroom detached house with 15 windows	4 – 5 days	£5,800	£1,200

Want a custom price?

Post your job

Things to Consider About Triple Glazing

Triple glazing remains less popular in the UK compared to Scandinavian countries such as Sweden, Denmark, and Norway. Their colder climates mean the extra insulation against heat loss provided by triple glazing is needed. Triple glazing is installed as standard in most Scandinavian homes for this reason.

But in the UK it is not as straightforward.

Double glazing and triple glazing both do the same job — triple glazing just does it slightly better.

However, when comparing triple vs double glazing, few triple glazing companies take into account the frame of the windows. uPVC is a poor insulator but is still the most commonly used frame material for double and triple-glazed window units in the UK.

So, if you are considering triple glazing, get timber-framed windows with triple glazing if you want to improve the thermal efficiency of your home as much as possible.

How long might it take to have four triple-glazed windows installed in various rooms in my home?

"It depends on the sizes and the type of windows you are installing. Typically single casement replacement would’ve not been more than 1.5 days. Or box type maybe 2 days. It all depends on the space available, sizes, how many fitters doing the job, and type of window."

Tunnel Glazing

Triple glazing will definitely make your home energy efficient, but the benefits will be minimal if other parts of the building are losing heat.

In such cases, triple glazing may not be the best investment, and you should look at other simpler and cheaper options. This might include cavity wall insulation, loft insulation, draught excluders, and curtains — despite what pushy glazing salesmen will try and tell you!

But if the rest of your home is already well insulated and money is not tight? In this case, triple glazing will make your home slightly warmer and quieter, but energy bill savings will be minimal.

But for those without double glazing? The benefits of fitting triple glazing are huge, including improved energy efficiency, lower heating bills, a warmer and cosier home, extra security, and noise reduction.

The front of our house is exposed to a lot of wind, so we could do with some recommendations for windows and doors that perform well at blocking wind out?

"Most new windows nowadays are capable and should indeed block out noise from wind and keep your home thermally efficient. When choosing your windows and doors you want to make sure the glass is A rated. This should come as standard but worth checking. Another great example of blocking out external noise and cold is to make sure fitters are correctly sealing your new windows. We use a method called triple seal but not all installers do this.

If you are wanting extra noise cancelation you could look at triple glazing, although more expensive it does work well, and we usually suggest installing triple glazing near buy main roads, airports or train stations."

Harris & Sons Windows Ltd

Doing it Yourself

DIY triple glazing is not a realistic solution for most people, but if you have some carpenter skills along with the right approach, there are significant possible savings to be made.

Today, you can buy quality triple glazing windows online at fantastic trade prices direct from the manufacturers — often with free delivery! This could mean saving thousands of pounds on your replacement windows by cutting out all the middlemen and buying directly from the manufacturer, then fitting them yourself.

Most manufacturers' websites will have instructions on how you should measure the windows before ordering. It is absolutely crucial that you follow these instructions exactly as if you get the sizes wrong, you are left with two options:

You make the windows fit, leaving a messy, unprofessional job, which will likely wipe out any potential energy savings due to the bad fit.
Bite the bullet and order the right-sized windows, this time paying twice as much as you needed to and probably wiping out any potential savings you may have made by fitting the windows yourself!

So unless you have lots of experience and are very confident fitting windows, do not try this yourself, get a professional in to do the job right the first time! On the other hand, if you have the right skills and experience, you could save a lot of money, perhaps £500 – £1000 depending on the size of your property and the number of windows.

My windows are almost 15 years old but they're double glazed and work ok. Is there any point in replacing them?

"As energy bills rise, it is a good idea to have an expert take a look at your windows to assess how they are holding up after fifteen year.

It may be a case of having some seals replaced that may have perished but if you haven't noticed any real issues, they should be okay!"

Revive Windows & Doors

Triple Glazing Checklist

The windows contribute about 20% of heat lost from houses with old double glazing.
Triple glazing reduces heat loss and noise through the windows.
Triple glazing makes a house more comfortable to lie in, but is expensive.
Make sure your home is already well insulated before investing in triple glazing.

Ask a Trade

Got a question that only a tradesperson can answer? We have thousands of trades ready to answer any question you may have.

Ask your question

FAQs

Is triple glazing worth it?

If you already have a well-insulated house, triple glazing might be a good option for you, as it will make your home even warmer, safer and more energy efficient.

If you live near a noisy road or have rowdy neighbours, triple glazing will also help make your home quieter. But otherwise, triple glazing only really makes financial sense if you are replacing single glazing or old inefficient double glazing.

How much will I save if I fit triple glazing?

Changing all windows from single to triple glazing could save a lot of money every year, as much as £175, which could work out to be around 50% of your annual energy bill. However, the savings made by replacing modern double glazing with triple glazing are minimal.

How much does triple glazing reduce noise?

The extra layer of glass and the additional insulating gap will improve your home’s sound insulation and reduce the amount of noise entering your home.

So, even if not a good idea on a purely financial basis, triple glazing is worth considering if you live in a noisy area. But if you live in a pretty quiet area, you will probably hardly notice the difference between double and triple glazing.

What are the pros and cons of triple glazing?

Triple glazing will reduce heat loss and further lower your energy bills, and it is less prone to condensation. It also offers slightly increased security and better noise insulation. But it is very expensive and may even slightly reduce light levels. In certain conditions, triple glazing is also prone to condensation on the outer layer of glass.

Will triple glazed windows add value to my home?

UK Government reports indicate that improving the thermal efficiency of your home can positively impact its market value — by up to 14% for the average home in the country.

Beyond this, triple glazing tends to be a desirable feature for potential buyers if the property is located somewhere that's affected by noise pollution — as it helps to block out external sounds. This might be especially valuable if the property is near an airport or railway, on a flight path, or located near a main road.

Are triple glazed windows popular in the UK?

Triple glazed windows aren't as popular as double glazed windows — which more than 85% of UK homes have installed. However, compliance with the Future Homes Standard (set to be introduced in 2025), means that new house builds may begin to install triple glazing as standard to comply with U-value requirements in the new regulations.