How Much Do New Windows Cost in the UK? Replacement Window Prices

Windows are considered 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 such as size, material, glazing type, style, and installation complexity.

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. The window type can also affect the cost, along with the frame material and glazing. If you are not familiar with the most common window styles in the UK, you can watch our short video summary below:

To ensure you get the best value for your window installation project, it's crucial to understand that costs are primarily determined by the size, style, and material of your chosen windows, as well as the installation rates of different companies.

One effective strategy to manage your budget is to obtain multiple quotes from various installers before making a decision. To simplify this process and save you time, we offer a free service that connects you with up to four top-rated, FENSA-qualified installers in your area. Simply get started by clicking the button below:

The rough cost for new windows in the UK typically ranges from £250 to £1,500 per window, including installation. This broad range depends on several key factors:

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.

Find out how much to double glaze a 3 bed house.

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. The more complicated and security-enhanced the window opening is, the more expensive the window becomes.

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. At the same time, as of August 2024, applicants must live in an already existing building, as the scheme is no longer available to homeowners building their own homes.

It’s best to check with your local installers and authorities to see if you can qualify for any grants.

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.

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.

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

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.

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

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.

*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.

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.

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.

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

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.

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

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.

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

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.

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

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.

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. 

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.

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.

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

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.