Triple Glazing Prices

Compare Triple Glazing Prices Near You

Home > Windows Projects > Triple glazing

Average Triple glazing cost

The average cost of triple glazed windows is around £400-600 per window, so you're looking at about £2,000 to install 4 triple glazing in a flat, and up to and exceeding £5,000 for replacing all the windows in a standard-sized home.

Average price per Triple glazing job in 2025

Avg. price low

Avg. price low
£1,211

Avg. price

Avg. price
£3,462

Avg. price high

Avg. price high
£5,921

£6500

£4875

£3250

£1625

£0

Prices based on actual Triple glazing costs for your area, as reported by local LeadsDoWork members.

Triple glazing installation cost in your area 2025

Labour cost £1,400
Material cost £500
Waste removal £100
Time frame: 1-2 days

Advantages for Triple glazing

  • Low cost vs other materials such as wood and aluminium
  • Triple-glazed windows are extra energy effective with a lower U-value
  • They maintain noise out, and also can for that reason include value to your property
  • High security to make your home more secure

Disadvantages for Triple glazing

  • Does not use natural materials so not as environmentally friendly
  • They cost more to install than double glazing

Triple glazing Manufacturers

Triple glazing FAQs

How to fit a double glazed window?

Did you just purchase a double glazed window and confused about how to have it installed? Fitting the window yourself can be quite easy with the help of this step by step guide. However, if you lack proper training or experience, we’d recommend you reach out to a trustworthy professional who can guarantee the best results for help. That said, now let’s take a look at the process.

• Remove the old windows by detaching the old beading and glass window safely. Then make some interval cuts using a hand saw before using a crowbar to pry it out.

• Cut the external double glazed window seal. Once done, take a measurement of the window area’s width once empty. Then transfer the measurement to the window sil to face outside and cut using a handsaw.

• Seal the window sil. Add a bead of clear silicone along both inside lip as well as the centre to seal the sil.

• Screw the double glazed window to the sil. Position the window on the top of the lipped section that was siliconed. Then pre-drill them together and screw in three places. You should make sure the screws do not go totally to the sil’s bottom.

• Install the double glazed window. After successfully screwing the double glazed window to the sil, you can now fit in the double glazing. Make use of packers to make sure it’s even in the slot.

• Screw the uPVC window to the wall. If you’re happy and satisfied with the position of the window, you can then pre-drill through the frame of the window and the brick wall. Once done, simply screw it in place using masonry screws or Spax screw as they do not require crawl plugs in bricks.

• Seal around the window. To do this, simply fill any gaps with expanding foam, wipe out the excess and seal with silicone.

How long does double glazing last?

Just like every other thing in your house, your double glazed windows have an expected lifespan attached to it as it gradually becomes less functional and less efficient over time. Although there are actually top quality windows which are able to last a very long time, but the fact still remains that nothing can stand the test of time or last forever. Even the best quality double glazed windows will eventually need to be replaced at some point. So exactly how long do double glazing windows last before need a replacement?

To make it brief, most double glazing window units are typically expected to last an average of 20 years. This number of years can, however, vary within the range of 10 to 35 years based on the several factors such as the type, quality of materials as well as installation and where the windows are located.

The reason for the depreciation in double glazing windows is, over time, the windows may be subjected to some wear, tear as well as all kinds of minor damages which includes gas filled insulated glazing unit slowly and gradually leaking. According to the Centre for Sustainable Energy, the evaporation of 25 percent of gas will ultimately minimize the windows’ thermal performance. And when this occurs, fitting a secondary glazing measure or replacing the windows should be put into consideration.

Another factor leading to the gradual depreciation in double glazing windows over time has to do with condensation. When the window collects between the layers of glass due to the failure of the seal of the perimeter and the saturation of the desiccant, can only be solved by IGU replacement.

And finally, the ravages of time also has a way of taking its toll on double glazing windows. This can happen in so many ways such that the window becomes a lot less efficient and later needing to be replaced.

What happens to my old windows?

After fitting your new windows, your installer should take away and dispose of your old windows. If you want to keep them, just let your installer know before they start work. The UPVC frames are melted down and used on the unseen parts of new windows. Aluminium frames are re-smelted and wooden are broken down and used as chipboard.

How can I find out how energy efficient my new windows will be?

All new windows come with an energy efficiency rating from A to G. A is best, while G is the lowest rating. Anything above C is considered good, but these days most companies will be able to supply you with A-rated windows to maximise your energy efficiency.

What happens if I have problems with my new windows?

Ultimately the double glazing company you use is responsible for the quality of work and to ensure your windows are of an excellent standard. This is why it’s important to get a warranty and use a Fensa registered installer. If problems emerge within a couple of years then it’s likely the installation was of a poor standard.Contact the double glazing company and have the issue repaired or new windows replaced. This doesn’t matter if you received a discount of free windows as part of the deal. As long as you entered into a contract the company is obliged to restore the windows.

What is uPVC?

uPVC is unplasticised polyvinyl chloride. It is a favourite amongst homeowners and manufacturers for its cheap production cost and excellent benefits. uPVC is used for window frames, conservatories and doors. In fact, uPVC can be three times cheaper than wooden frames and is also the most energy efficient option.As well as this, uPVC is now available in a range of colours other than the typically seen bright white finish. It can also be recycled, is durable and resistant to changing weather conditions.

How much does double glazed windows cost?

Are you looking to replace your old window for a new double glazed window and wondering what it’s going to be the cost? Well, the double glazed windows market is a very competitive one in the UK with varying prices across the country. Therefore, if you shop around you’re most likely to find something that’ll fit your budget both products and quality wise.

As you would have expected, the more windows you required the more money you are going to spend. However, the cost per window is likely going to be lower depending on the number of windows you purchase. Several double glazed windows come with a 10 year warranty but it’s advisable to also obtain a solid workmanship warranty which provides coverage for any potential problems for a good period of time upon installation.

To determine the cost of double glazed windows, there are so many things to put into consideration that just the primary dimensions of the window itself. Other factors that works to decrease or increase the cost of the project includes the frames’ quality as well as the material used. For example hardwood can be quite high priced when compared to uPVC.

The number of opening windows within the frame can also play a huge role in the cost of the windows as well as the type of the glass. The cost of a double glazing window usually ranges between £100 to £3,200 per window, depending on the available options.

To have a more accurate estimate of the cost of a double glazing window, you’ll need a obtain a survey from a double glazing installer who can take into account any possible complications that may arise when installing your windows while also giving an advise on the most suitable window style for your property.

What are the other double glazing options?

Double glazing frames don’t just have to come in uPVC and are available in other materials including aluminium and wood too. Wooden or timber windows are more suited to properties with a traditional look and are often the frame of choice for listed buildings and homes in conservation areas. When properly maintained wooden windows can last well for years but can be up to three times more expensive than uPVC.Aluminium is the strongest and most durable option. As a metal it is highly resistant to the UK’s changing weather conditions and won’t rust, warp, crack or peel. Aluminium offers a modern appeal and is available in a range of colours.

UPVC Double Glazing Window Installation

Our reviews

Average

Would highly recommend

Would highly recommend, they found me a firm which I was happy with a quote they give me and went ahead and had my job done within 2 days of enquiring.

Good easy way to find a selection of…

Good easy way to find a selection of trades you need all in one place.

Love LeadsDoWork it's a big part of my …

Love LeadsDoWork it's a big part of my Business I would recommend to anyone

GCB Windows

Based: in Newry, BT34

Bell Windows was brought together in 2008 by Gordon Bell. Even though it is a relatively young compa...

Latest review

Fiona R., BT22
5th April 2025

Windows | uPVC in Newtownards

Excellent, will go with Bell, just awaiting budget release.

WFS ANGLIA

Based: in Peterborough, PE2

Here at WFS Anglia Ltd, we have built ourselves a fantastic reputation throughout Cambridge, Northam...

Latest review

Colin S., PE14
8th December 2024

Windows | uPVC in Wisbech

Straight forward no pressure quotation took 1/2 hour. Fitted within a few weeks.very...

ECO WARM HOMES SW

Based: in Rotherham, EX17

We are a Home improvements company specialising in replacement windows doors and conservatory instal...

Latest review

Vaughan N., EX39
18th June 2024

Windows | uPVC in Bideford

Very polite, no pressure

Secured homes

Based: in Doncaster, DN8

Secured homes is based in Doncaster and have 11 positive reviews

Latest review

Nigel L., BD10
27th January 2024

Windows | uPVC in Bradford

Started at a high price then came down to a middle price then came down to a low pric...

The Window Company

Based: in Nottingham, NG14

The Window Company have been trading since 2001 in the East Midlands area, offering a bespoke servic...

Latest review

Denise M., S80
6th April 2024

Windows | uPVC in Worksop

John came to give a quote he was honest and friendly with no bullshit, he came measur...

A Rated Home Improvements

Based: in Swansea, SA4

Founded in 2010 in Port Talbot, but now based in Gorseinon, A-Rated Home Improvements install double...

Latest review

Lesley H., CF36
14th March 2024

Windows | uPVC in Porthcawl

Excellent presentation with all questions answered .. and a great product .. larger c...

Affordable Quality Windows

Based: in Neath, SA10

Affordable Quality Windows is based in Neath and have 7 positive reviews

Latest review

Lesley H., CF36
14th March 2024

Windows | uPVC in Porthcawl

Already had three engagements so declined appointment .

A One Home Improvements South West

Based: in Swansea, SA5

Over 35 years’ experience, we offer the complete package from design to installation & 10 years be...

Latest review

Lesley H., CF36
14th March 2024

Windows | uPVC in Porthcawl

Really positive appointment fully explained everything and the products .. seemed to...

Barriertherm UK

Based: in Middlesbrough, TS1

We are a family run company run on family values we provide a personal professional service offering...

Latest review

Shane W., NE9
20th February 2024

Windows | uPVC in Gateshead

So far so good , Non of the sales pitch just exactly what we wanted to see and hear, ...

C R Smith Glaziers Dunfermline

Based: in Dunfermline, KY12

With over 50 years of experience in the windows and doors industry, CR Smith is firmly established a...

Latest review

Becky S., AB31
22nd December 2023

Windows | uPVC in Banchory

Good quality and great installation completed speedily. Excellent workmen

Rated Local window installers

Britelite Windows Ltd

156 review(s)
Based: in Maidstone, ME15 9XY

We fit high quality double glazing and the next generation triple glazing, using only the best materials. Fully guaranteed for 10 years, Britelite products will save you money by reducing your energy consumption and require little to no maintenance a...

Conservatories & Windows Direct

2 review(s)
Based: in Cannock, WS11 0BW

Conservatories & Windows Direct are suppliers and installers of high quality energy efficient Conservatories, Orangeries, Windows & doors. Unique to our company is OPTITHERM, a combination of the market leading products to enable us to provide our...

WFS ANGLIA LTD

60 review(s)
Based: in Peterborough, PE2 8bg

Here at WFS Anglia Ltd, we have built ourselves a fantastic reputation throughout Cambridge, Northamptonshire, Peterborough, Milton Keynes, Buckinghamshire and surrounding areas. This is based upon our perfect harmony between high quality workmanship...

Crystal Windows and Doors Ltd

64 review(s)
Based: in Romford, RM7 7PN

Crystal is a uPVC Windows and Double Glazing manufacturer and installer. We have built a strong reputation in London and the South East for great value and exceptional service in the design, production and installation of quality uPVC Windows, Doors,...

A Rated Home Improvements Limited

26 review(s)
Based: in Swansea, SA4 9WN

Founded in 2010 in Port Talbot, but now based in Gorseinon, A-Rated Home Improvements install double glazing, uPVC and Aluminium windows, doors and conservatories to a professional and very high standard. With almost 10 years’ experience operating ...

The Window Company

13 review(s)
Based: in Nottingham, NG14 5FP

The Window Company have been trading since 2001 in the East Midlands area, offering a bespoke service for windows, conservatories and roofline. As a company we strive for quality of product, excellence of installation and unequalled customer service....

C R Smith Glaziers Dunfermline Ltd

20 review(s)
Based: in Dunfermline, KY12 0RN

With over 50 years of experience in the windows and doors industry, CR Smith is firmly established as Scotland’s leading home improvement manufacturer and supplier. We have designed, constructed and installed more windows and doors in Scotland th...

Kent Glazing Limited

43 review(s)
Based: in Gillingham, ME7 3NE

KENT GLAZING - number one installer throughout the Kent area. Family business - with over 30 years experience - specialising in Double Glazing, Windows, Doors & Conservatories.

GCB Windows Ltd

26 review(s)
Based: in Newry, BT34 4TY

Bell Windows was brought together in 2008 by Gordon Bell. Even though it is a relatively young company, Gordon himself has worked with uPVC products for over 30 years and also in the Building trade for a further 12 years before that

A One Home Improvements South West Ltd

1 review(s)
Based: in Swansea, SA5 4JB

Over 35 years’ experience, we offer the complete package from design to installation & 10 years beyond. We offer start to finish project management where as well as our 1st class window fitters and carpenters, we can take care of any building work ...

Similar Customer Enquiries for Triple glazing

11 Jun

Windows | uPVC

Northampton - NN3

Enquiry from: Har-Iqubal S

Start Date: Immediate

What best describes your living situation? - Homeowner - Joint. How many windows are you considering replacing? - -. What material do you require, UPVC? - UPVC. What colour do you want them to be? - W...

Post a similar request >

11 Jun

Windows | uPVC

Westcliff-on-Sea - SS0

Enquiry from: Taylan H

Start Date: Immediate

what best describes your living situation? - homeowner - sole. how many windows are you considering replacing? - 4. what material do you require, upvc? - upvc. what colour do you want them to be? - wh...

Post a similar request >

11 Jun

Windows | uPVC

Sunderland - SR4

Enquiry from: Gafar M

Start Date: Immediate

Owner Terraced 5+ windows 2 doors Upvc white 1-3 Months

Post a similar request >

11 Jun

Windows | uPVC

Leicester - LE5

Enquiry from: Salma M

Start Date: Immediate

Owner Terraced 4 windows Upvc white 1-3 Months

Post a similar request >

11 Jun

Windows | uPVC

Portrush - BT56

Enquiry from: Karl A

Start Date: Immediate

What best describes your living situation? - -. How many windows are you considering replacing? - -. What material do you require, UPVC? - -. What colour do you want them to be? - -. Do you require do...

Post a similar request >

11 Jun

Windows | uPVC

Coventry - CV6

Enquiry from: Sucha S

Start Date: Immediate

Owner Detached 1 window 1 door Upvc white 1-3 Months

Post a similar request >

11 Jun

Windows | uPVC

Bradford - BD9

Enquiry from: Allah D

Start Date: Immediate

Customer made an enquiry for replacement double glazing via one of our websites. Looking at various options Confirmed interest 2+ windows Supply and install Please call to discuss options and arrange ...

Post a similar request >

11 Jun

Windows | uPVC

Isle of Lewis - HS2

Enquiry from: Kenny M

Start Date: Immediate

What best describes your living situation? - Homeowner - Sole. How many windows are you considering replacing? - -. What material do you require, UPVC? - -. What colour do you want them to be? - --. D...

Post a similar request >

11 Jun

Windows | uPVC

Coleraine - BT51

Enquiry from: Carol H

Start Date: Immediate

What best describes your living situation? - -. How many windows are you considering replacing? - -. What material do you require, UPVC? - -. What colour do you want them to be? - -. Do you require do...

Post a similar request >

11 Jun

Windows | uPVC

London - SW4

Enquiry from: Jane P

Start Date: Immediate

Customer living in London area made an enquiry for double glazing quotes via one of our websites. Customer confirmed interest via Homeowner needs advice on options 2+ windows Supply and install Pleas...

Post a similar request >

11 Jun

Windows | uPVC

Walsall - WS9

Enquiry from: Ali C

Start Date: Immediate

Customer made an online enquiry for replacement windows via one of our websites. Confirmed via . 2+ windows Supply and install Please call to arrange an appointment to quote.

Post a similar request >

11 Jun

Windows | uPVC

London - SW9

Enquiry from: Chloe N

Start Date: Immediate

Customer made an enquiry for replacement double glazing via one of our websites. Looking at various options Confirmed interest 2+ windows Supply and install Please call to discuss options and arrange ...

Post a similar request >

11 Jun

Windows | uPVC

Leicester - LE5

Enquiry from: Z

Start Date: Immediate

Customer is looking to replace their windows. They are still considering options so please call to discuss what would be best for their home. Homeowner lives in Leicester area 2+ windows Supply and in...

Post a similar request >

11 Jun

Windows | uPVC

Southall - UB2

Enquiry from: Maryam A

Start Date: Immediate

Customer made an enquiry for replacement double glazing via one of our websites. Looking at various options Confirmed interest 2+ windows Supply and install Please call to discuss options and arrange ...

Post a similar request >

11 Jun

Windows | uPVC

London - SE11

Enquiry from: Mas N

Start Date: Immediate

Customer is looking to replace their windows. They are still considering options so please call to discuss what would be best for their home. Homeowner lives in London area 2+ windows Supply and insta...

Post a similar request >

11 Jun

Windows | uPVC

Wolverhampton - WV3

Enquiry from: Palwinder S

Start Date: Immediate

Customer made an online enquiry for new double glazing. Homeowner confirmed interest via SMS/ Considering a range of options Homeowner lives in Wolverhampton area 2+ windows Supply and install Please ...

Post a similar request >

11 Jun

Windows | uPVC

Harrow - HA2

Enquiry from: Suresh K

Start Date: Immediate

Customer is looking to have windows installed. They are unsure what options to go for so would like to discuss directly multiple windows to be Supplied and installed Please call to quote.

Post a similar request >

11 Jun

Windows | uPVC

Blackburn - BB1

Enquiry from: Aiyub C

Start Date: Immediate

Customer living in Blackburn area made an enquiry for double glazing quotes via one of our websites. Customer confirmed interest via Homeowner needs advice on options 2+ windows Supply and install Pl...

Post a similar request >

11 Jun

Windows | uPVC

London - E2

Enquiry from: Mustafa B

Start Date: Immediate

Customer made an online enquiry for replacement windows via one of our websites. Confirmed via email/SMS/. 2+ windows Supply and install Please call to arrange an appointment to quote.

Post a similar request >

11 Jun

Windows | uPVC

Dungannon - BT71

Enquiry from: Sarah T

Start Date: Immediate

Call back anytime. Number of windows: 7 Number of doors: 2 Quote requested on windows and doors, in PVCu, to be supplied and fitted.

Post a similar request >

Local & reliable window installers near me

Tell us about your triple glazing project

Answer a few quick questions, so we can match you with local window installers who can help.

Find up to 4 window installers in your area

Get free, no-obligation local triple glazing quotes from 4 verified window installers working in your area.

Hire with confidence

Compare customer reviews, services and prices, and choose the right tradesperson for you.