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Last updated: 14 May 2024

How Much Do New Windows Cost? Replacement Window Prices

How Much Do New Windows Cost
  • The cost of new windows can range from £160 to £2,000.
  • The style, material, size, labour costs, and type of glazing all affect the cost of new windows.
  • There are grants that can offset the cost of replacement windows in the UK.

Windows are considered to be an essential part of a household given their enormous impact on energy bills, insulation and overall quality of life. A single window can cost between £160 and £2,000 but this can vary based on numerous factors. For instance, installing double glazing with uPVC frames throughout an average 3 bedroom house (8-10 windows) could cost between £1,200 to £12,400.

Window supply costs are mainly decided by the size, style, and material of your windows and installation rates also vary based on the company you choose to work with. One of the best ways to keep the overall new windows costs down is by receiving multiple installer quotes before deciding on a company.

Finding companies can take days of research when done alone but if you, like many others, don’t have time for that, we can help out. Simply by filling in our form, we’ll provide you with up to 4 of the best installers operating in your region. All of the installers in our wide network are FENSA-qualified and thoroughly vetted by us.

Our service is completely free and you’re under no obligation to accept any of the quotes you receive. Get started today by clicking the button below.

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Quickly compare 4 FREE quotes
  • Quotes from local engineers
  • Payment by finance available
  • Save up to £150 per year*
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*£150 savings figure is based on yearly savings made from installing new A++ rated double glazed windows in place of an entirely single-glazed semi-detached gas heated property (Energy Savings Trust).

How much does window replacement cost?

The rough cost for new windows in the UK ranges from £160 to £2,000 per window. Casement windows tend to cost between £160 to £1,240, sash windows cost from £240 to £1,860, and tilt and turn windows cost between £200 to £1,550.

Cost to replace windows in the UK
Window Frame600 x 900mm900 x 1200mm1400 x 1400mm
uPVC£160 - £990£200 - £1,065£230 - £1,240
Aluminium£210 - £1,290£260 - £1,390£300 - £1,615
Timber£240 - £1,485£300 - £1,600£345 - £1,860

These costs are averages. Get a local installer to QUOTE now!

Finding prices for a window replacement can also be difficult due to variables like size and materials. The table below shows the average cost per double glazed window depending on the type of frame material you choose and the size of the window.

Installing double glazing with uPVC frames throughout an average 3 bedroom house could cost between £1,200 to £12,400. Triple glazing will add around 40% to the cost and opting for aluminium or timber frames will be more expensive again adding between 30-50% to the price.

So, how much are new windows? This can depend on style, material, labour costs, size, and type of glazing.

Factors that affect window costs

uPVC window frames are generally the lowest-cost option. Composite window frames (a combination of timber and aluminium or steel) are often the most expensive type of frame to install. Picture window costs are usually lower, whereas sash windows are often the most expensive to install.

Are there any window grants available

There are numerous incentives and window grants available that help improve your home. Among these ECO4, Warmer Homes Scotland, and Home Upgrade Grant are the most popular. Most of these are means-tested to help out the homes that need them the most.

They can potentially offset your installation and reduce how much new windows cost for your home. Grants like ECO4 and the Affordable Warmth Scheme can cover the entire cost of new windows if you are on benefits or meet the income threshold set by the government.

Similarly, Home Energy Scotland Grant & Loan can replace single glazed windows but does not offer loans for improving existing double or triple glazing. It’s best to check with your local installers and authorities to see if you can qualify for any grants.

Which are the cheapest window frames?

The material you choose for your window frames will have a significant impact on the cost. We’ve put together some average prices for the supply and installation of windows by material to give you an indication of the difference in price you are looking at.

New window prices

uPVC window prices

uPVC windows are generally the lowest cost option but this doesn’t necessarily mean they’re the lesser option.

High-quality uPVC frames are highly thermally efficient and long-lasting. They are also easy to maintain requiring only an occasional wipe down. However, poor quality uPVC can warp over time so cheaper models may not be the best long-term investment for your home.

Here are the average supply costs of uPVC framed double glazing.

uPVC window prices
Window style Price range
Casement £160 – £825
Sash£240 – £1,240
Tilt & Turn £200 – £1,030
Bay (3 panels)£1,190 – £1,800

These costs are averages. Get a local installer to QUOTE now!

Aluminium window prices

Aluminium windows are more expensive than uPVC but will provide your home with long-lasting, durable and sleek-looking windows. They offer more thermal efficiency than uPVC with modern thermal break technology. They also have slimmer frames and require less maintenance than timber.

Here are the average costs for the supply of aluminium framed double glazing.

Aluminium window prices
Window style Price range
Casement £210 — £1,615
Sash£315 –£1,615
Tilt & Turn £265 – £1,345
Bay (3 panels)£1,550 – £2,340

These costs are averages. Get a local installer to QUOTE now!

Timber window prices

Timber windows are the most costly option but can add real value to your home, especially if you are conscious about the overall aesthetics. Timber windows provide a classic and elegant finish and are perfect if your home is of a particular period. It is possible to find cheap wooden window prices online, although the quality will vary.

It’s worth remembering that, in addition to their higher cost, they also require more ongoing maintenance than uPVC or aluminium. On the other hand, wooden windows can last literally a lifetime, so they can be worth more than how much it can cost to replace windows in the UK.

Here are the average supply costs of timber framed double glazing.

Timber window prices
Window style Price range
Casement £240 – £1,240
Sash£360 – £1,860
Tilt & Turn £300 – £1,550
Bay (3 panels)£1,785 – £2,700 

*Please note that these figures are based on average costs across our extensive market research and are intended as a guide price only. Get a local installer to QUOTE now!

If you have a particular material in mind, then it’s good to find companies in your area that specialise in what you’re looking for. This could take hours of comparing prices if done on your own, but we offer a better way. Simply by filling in our form, you can receive up to 4 tailored quotes within 48 hours.

We have a whole network of trusted installers that we can match to you based on your requirements. No hassle, no costs, and no obligations. Just the best quotes from the top-rated installers in your area. Get started today by clicking the button below.

Get your best deal
Quickly compare 4 FREE quotes
  • Quotes from local engineers
  • Payment by finance available
  • Save up to £150 per year*
GET QUOTES NOW

It only takes 30 seconds

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Optimise your home and save the planet
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Call us to get quotes
We will get you the best deal

*£150 savings figure is based on yearly savings made from installing new A++ rated double glazed windows in place of an entirely single-glazed semi-detached gas heated property (Energy Savings Trust).

Which is the cheapest style of window?

The price of your windows will also depend on the style that you choose. Here are the average costs for a range of window styles in white uPVC frames with double glazing to give you a point of comparison to start from.

Types of window styles

Casement windows prices

Casement windows are one the most commonly found in homes because they offer a great deal of versatility. They can be fixed or can open from either the top, side or bottom and are available in sizes, materials and finishes to suit almost any purpose.

Window replacement cost: (single + double casement windows)
Window Frame600 x 900mm900 x 1200mm1400 x 1400mm
uPVC£160 - £660£200 - £710£230 - £825
Aluminium£210 - £860£260 - £925£300 - £1,075
Timber£240 - £990£300 - £1,065£345 - £1,240

These costs are averages. Get a local installer to QUOTE now!

Sash window prices

Sash windows are most commonly found in Georgian and Victorian homes and add a really distinctive, traditional look to your property. They are essentially two window units which open either horizontally or vertically and are typically fitted with timber frames. Within the panes of glass, there are also distinctive glazing bars.

Sash windows
Window Frame600 x 900mm900 x 1200mm1400 x 1400mm
uPVC£240 - £990£300 - £1,065£345 - £1,240
Aluminium£315 - £1,290£390 - £1,390£450 - £1,615
Timber£360 - £1,485£450 - £1,600£520 - £1,860

These costs are averages. Get a local installer to QUOTE now!

Tilt & turn window prices

Tilt & Turn windows are a more modern solution as, unlike other types, they open inwards into the room so it’s easier to maintain them and ventilation is improved. The tilting feature also means that you have a great deal of flexibility when it comes to how widely you open them.

Tilt and turn windows
Window Frame600 x 900mm900 x 1200mm1400 x 1400mm
uPVC£200 - £825£250 - £890£290 - £1,030
Aluminium£265 - £1,075£325 - £1,155£375 - £1,345
Timber£300 - £1,240£375 - £1,330£430 - £1,550

These costs are averages. Get a local installer to QUOTE now!

Bay window prices

A bay window protrudes out from the flat wall of a home and creates a bay area within the room. Today this type of window can be found in homes of all kinds and includes various design options such as box windows, circle bay windows, or oriel windows. Check the table below for the average cost of bay windows.

Bay windows (3 panels)
Window Frame2,400mm x 1,200mm2,400mm x 1,500mm
uPVC£1,190 – £1,725£1,240 – £1,800
Aluminium£1,550 - £2,250£1,615 - £2,340
Timber£1,785 - £2,590£1,860 - £2,700

These costs are averages. Get a local installer to QUOTE now!

Bow window prices

Bow windows are a type of bay window that curves and adds a rounded aesthetic to the exterior of your home. A bow window is a great option if maximising light in your home is a priority. Bow windows are generally more expensive than bay windows since they typically include more sections to create a rounded effect.

These costs are averages. Get a local installer to QUOTE now!

If you’re still unsure about what style of replacement windows you’d like, then it’s best to consult a professional installer for expert advice. Our service will only match you with the best installers in your local area. A local installer can offer a faster, more personalised service, for far less.

Finding one on your own can be a hassle that could take days of strenuous research. However, with us, you can obtain up to 4 free and fast quotes with no obligations. Get started today by clicking the button below.

Get your best deal
Quickly compare 4 FREE quotes
  • Quotes from local engineers
  • Payment by finance available
  • Save up to £150 per year*
GET QUOTES NOW

It only takes 30 seconds

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Optimise your home and save the planet
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Call us to get quotes
We will get you the best deal

*£150 savings figure is based on yearly savings made from installing new A++ rated double glazed windows in place of an entirely single-glazed semi-detached gas heated property (Energy Savings Trust).

How to measure your windows

Where possible you will need to measure the aperture or brickwork opening on the outside of your property. You should also take measurements of the height and width from three different places- the left side, right side, and centre. Then use the smallest measurement for both dimensions to account for any natural expansion from hot weather.

Any windows above the ground floor will cost more to replace as the window fitter will need to use scaffolding to access them. It’s possible that a company may offer a discount if you need more than 5 windows. Not sure how to measure your windows correctly? Take a look at our step-by-step guide to measuring your old windows for replacement.

101.6cm x 91.44cm | 320cm x 198.12cm 

The table below shows standard sizes for windows in the UK. 

Standard window sizes (widths & heights)
Standard window widthsStandard window heights
488mm (19 inches)488mm (18 inches)
630mm (25 inches)600mm (24 inches)
915mm (36 inches)1,050mm (42 inches)
1,200mm (48 inches)1,200mm (48 inches)
1,770mm (70 inches)1,350mm (54 inches)

Comparison: Double glazing vs secondary glazing

Double glazing vs secondary glazing

Double glazing prices sit at around £160 – £1,860 per window. However, double glazing prices will vary from installation to installation.

As an effective insulator, double glazing will help keep your home warmer and reduce outdoor noise, double glazing is well worth the investment. The Energy Saving Trust found that gas heated homes across England, Scotland and Wales could save up to £180 a year.

If the cost of double glazing isn’t a realistic option for you, perhaps because of the costs or because you live in a protected property, then secondary glazing could be the solution. 

This involves adding a second pane of glass to single glazing which is fitted on the inside of the window. It’s a cheaper choice and will reduce the heat loss and noise pollution associated with single glazing. However, ultimately it’s not as effective as double glazing.

Comparing window quotes and prices

Before you begin inviting tradespeople or salespeople into your home it’s a very good idea to do your own research. Traders that pressure you to agree to a quote based on ‘today only prices’ should be viewed with scepticism. The same can also be said for low installation rates. That’s another reason why comparing quotes is preferable; you’ll get a sense of what the most accurate installation rates are.

A reputable company will provide their best quote and leave you to consider it. They should also be registered with FENSA or the GGF. You can also assess their professionalism by how many years of experience they have, as well as by checking out customer reviews and testimonials.

What should a quote for new windows include?

When getting quotes for your new windows, the total price quoted by each installer should include:

  • A full survey of your home
  • The window frames & external cill
  • Evidence of Energy Efficiency Rating
  • Any security features
  • Glass panes (standard, toughened, obscured)
  • Handles
  • All installation/labour costs
  • Trims, fixings, silicones and sealants
  • Registration with industry bodies such as FENSA or Certass and relevant certification
  • Removal and disposal of your old windows

To learn more about the best double glazing companies operating in your home country, check out our local windows pages:

We have a wide network of installers from up and down the country, meaning we can match you with those based in your region. All of the installers we work with are vetted by us and FENSA certified, or equivalent.

Do away with the need for days of research and price comparisons while contacting companies on your own. Tell us what you need by completing our short enquiry form and we can provide you with competitive quotes from up to 4 reputable window fitters. There’s no obligation to use any of the quotes you receive.

Get your best deal
Quickly compare 4 FREE quotes
  • Quotes from local engineers
  • Payment by finance available
  • Save up to £150 per year*
GET QUOTES NOW

It only takes 30 seconds

Earth globe icon
Optimise your home and save the planet
Earth globe icon
Call us to get quotes
We will get you the best deal

*£150 savings figure is based on yearly savings made from installing new A++ rated double glazed windows in place of an entirely single-glazed semi-detached gas heated property (Energy Savings Trust).

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