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Double Glazed Windows

Double glazing is ubiquitous throughout the UK these days, for good reason! Cheap, efficient, easy to install and readily available, this will be a great choice for people who have been living with single glazed windows. Read our article for price points and all the information you need!

How much does it cost?

The number one concern people have about installing double glazing concerns the costs. You will certainly be wondering how much installing new double glazed windows will cost you. Thankfully we have scoured the internet and will provide you with a concise but comprehensive overview of how much it should cost you to install double glazing. We break them down by material used and give you specific price points for the most common types of windows people choose.

uPVC windows

Pricing is for Standard A rated Windows, cost of materials and installation only.

Cost of uPVC Windows (materials + installation)

Type of homeNumber of BedroomsWindows neededExpected cost of Casement style uPVC WindowsExpected cost of Sash style uPVC Windows
Flat24 windows£1,450 - £1,700£2,400 - £3,200
Terraced25 windows£1,800 - £2,250£3,000 - £4,350
Semi-detached27 windows£2,500 - £2,800£3,700 - £5,200
Semi-detached39 windows£3,200 - £3,500£4,400 - £6,600
Detached312 windows£4,200 - £4,700£6,200 - £7,550
Detached415 windows£5,300 - £5,800£7,200 - £9,400

Wooden windows

Pricing is for wooden style double glazing windows, cost of materials and installation only.

Cost of Wooden Windows (material + installation)

Type of homeNumber of BedroomsWindows neededExpected cost of Casement style Wooden WindowsExpected cost of Sash style Wooden Windows
Flat24 windows£2,400 - £2,800£4,100 - £5,500
Terraced25 windows£2,800 – £3,050£5,150 - £5,700
Semi-detached27 windows£4,200 - £4,500£6,500 - £8,000
Semi-detached39 windows£5,500 - £6,200£7,700 - £11,500
Detached312 windows£7,850 - £8,650£9,500 – £13,600
Detached415 windows£9,350 - £10,100£12,300 - £16,000

Aluminium windows

Pricing is for aluminium style double glazing windows, cost of materials and installation only. Sash aluminium windows are uncommon and we could not find average price points for these.

Cost of Aluminium Windows (materials + installation)

Type of homeNumber of BedroomsWindows neededExpected cost of Casement style* Wooden Windows
Flat24 windows£2,400 - £2,800
Terraced25 windows£2,800 – £3,050
Semi-detached27 windows£4,200 - £4,500
Semi-detached39 windows£5,500 - £6,200
Detached312 windows£7,850 - £8,650
Detached415 windows£9,350 - £10,100

Save money on the price of double glazed windows

Why spend more money than necessary on your double glazing? Now you don’t need to waste time contacting different companies when comparing quotes, because we do the legwork for you. Fill out our quick online form and receive up to 4 quotes by trusted local professionals in under 2 working days. Your free, no-obligation quote request will ensure you get the best possible price. Take 2 minutes to fill out some basic information and save up to 40% on your newly double glazed windows.

What are double glazed windows?

Double glazing means that you fit a window space with two panes of glass instead of the traditional one. The gap between the two panes will contain either air or an inert gas such as argon to ensure a more reliable barrier against temperature fluctuations outside.

Double glazing works much the same way as a wool jumper.

Your body generates heat and as it makes its way through the jumper, the fibres of the wool are hollow and traps heat in this small air cavity which keeps you warm and cosy.

The same goes for windows. Heat escapes through single pane windows as glass is an excellent conductor of heat, and with nothing to keep the heat in, it escapes fairly easily…

double glazed windows

Why are double glazed windows so popular?

With double glazing, the air cavity traps heat between the two panels of glass. The most common type of double glazing is for thermal insulation. This is low-emissivity otherwise known as Low E glass. If the glass is also Low E glass it will reflect even more heat back into the house. Having double glazed windows installed with Low E glass also traps the heat generated from the sun better. This will let in the warmer UV rays without losing the majority of the heat at night.

Double glazing is widely used in both old and new houses. It provides the homeowner with many benefits including better insulation, noise reduction and decreased energy costs. There are many features to consider when looking at installing double glazing with varying styles such as uPVC, wooden and aluminium. There are also many other types of double glazing for specific applications in the home.

These include:

  • Acoustic glass – for reducing noise
  • Safety glass – for use in sky lights and bathroom areas
  • Fire glass – for use in fireproofing requirements
  • Security glass – for added safety and security

What is secondary glazing?

Secondary glazing takes the basic principles of double glazing and applies it to homes where replacing the exterior window fitting is not an option, such as in heritage listed homes.

By adding a second layer of interior glass you are able to create an air cavity between the two panes reducing overall heat loss and noise.

Although secondary glazing is around half as effective as double glazing, it is considerably cheaper. This is because it is easy to install and does not require the strict weatherproofing requirements needed for the outside pane. So secondary glazing costs will be lower than installing brand new double glazing.

Replacing secondary glazed windows is also easy with no specialty tools or knowledge needed.

double glazed windows

What are the benefits of double glazing?

  • Saving money

Heating and cooling your home has become increasingly more expensive as energy prices for gas and electricty steadily rise. An average household fuel bill in 2014 was over £1,150. Your energy bills will fall due to improved insulation when you install double glazing in the home.

You will increase the resell value of homes when you fit double glazed windows, with buyers demanding better insulation in new and old buildings.

  • Better for the environment

Consumers are becoming more environmentally focused nowadays. We pay much more attention to renewable energy sources and products that waste less power. Double glazing makes your home more energy efficient, heating your home in the winter and cooling it down in the summer. Reducing your home’s carbon footprint can make a huge difference to the push for a better environment.

  • Healthier living

It is common knowledge that prolonged exposure to a cold and damp environment leads to health complications in the future, especially for the very young and the elderly. With double glazing installed, homes are warmer, healthier environments to live in.

  • Heritage home? No problem

Many homeowners living in heritage listed homes will know that you either cannot make changes to the existing facade or is very complicated and costly. Secondary glazing, which is similar to double glazing is an option. You can install secondary glazing on the inside of the building without disturbing the outward appearance. Secondary glazing is half as effective as double glazing according to many people. However, they can still provide many of the added benefits as mentioned in our dedicated section on secondary glazing.

  • Security

Windows are a home’s weak spot when it comes to security. One of the added byproducts to double glazing is the improved security it gives to your home. By adding two panes of glass the chances of an unauthorised entry are reduced. There are also further options available for enhanced security measures. For example, you can use a safety or laminated glass that includes a built in layer of resin. This makes it difficult to break but also does not compromise on the clarity of the window.

Compare quotes from up to 4 local and trusted professionals

With major home improvements, you want someone you can trust to do the job. This can be tricky! You will make sure the job is done properly at the right price when you compare quotes from certified companies near you. Fill out our e-form and in under 2 working days you will receive up to 4 quotes from reliable local companies. This way you can compare quotes quickly and easily to make sure you don’t pay more than you need for your double glazed windows. Start by filling out your postcode and get started today!

Double Glazed Windows
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