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How Much Do New Windows Cost? Replacement Window Prices
Windows are considered to be an essential part of a household given their enormous impact on energy bills, insulation and overall quality of life. For this reason, it is also important to consider purchasing a new set of windows or perhaps a window replacement.
For instance, installing double glazing with uPVC frames throughout an average 3 bedroom house could cost between £3,000 to £5,000. In this guide, we’ll take you through the most important cost-related factors you’ll need to consider whenever it becomes time to replace your windows.
Window supply costs are mainly decided by the size, style, and material of your windows. Whereas, installation costs include the costs of removing your old window, and then fitting the new frame and the new glass. In general, this will likely cost an additional £300, but this will increase the more windows you’re working on.
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 one company to work for. This way, you can compare offers and choose the one that offers a good deal.
It’s important that you only compare quotes from the most reputable companies that will offer quality products and services. To avoid spending too much time looking into the background of lots of different companies, why not leave it to us at GreenMatch?
Simply by filling in our form, we can find up to 4 of the best installers operating in your region. They will then offer you their tailored quotes, which you can compare and choose between. All of the installers in our wide network are vetted by us and FENSA qualified.
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.
How much does it cost to replace windows?
Finding window prices for a window replacement can be a difficult business. There are so many factors that can affect the price of the materials and labour involved that it’s almost impossible for a window installer to estimate without visiting your home. Having said that, we’ve done some research around the average cost of window replacements in today’s market to help you to at least make a start on a budget.
This table shows the average cost per double glazed window depending on the type of frame material you choose and the size of the window. It is important to note that these price ranges are provided to give an indication of price and actual window installation quotes may vary.
| Window replacement cost | |||
|---|---|---|---|
| Window Frame | 600 x 900mm | 900 x 1200mm | 1200 x 1200mm |
| uPVC | £250-£400 | £400-£600 | £650-£900 |
| Aluminium | £550-£700 | £650-£800 | £750-£1,000 |
| Timber | £850-£1,000 | £1,200-£1,400 | £1,350-£1,500 |
These costs are averages. Get a local installer to QUOTE now!
Installing double glazing with uPVC frames throughout an average 3 bedroom house could cost between £3,000 to £5,000. It’s always best to consult a professional installer who will consider the style, size and type of windows you’re looking for. Triple glazing will add around 30% to the cost and opting for aluminium or timber frames will be more expensive again adding between 30-50% to the price.
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.
In terms of design, casement style windows are usually the most affordable option ventilation option. Picture window costs are usually lower but they are static windows that can’t be opened so they can lack functionality. Whereas, sash windows are often the most expensive to install.
Additional costs might include speciality glazing (low-E, self-cleaning, toughened) or any extra security features.
The company you choose to install your new windows, its size, and its location (relative to yours) will also have considerable bearings over final total costs. This is why we recommend comparing multiple quotes from at least 2 or 3 companies so you can find out where the best value for money is. Get free window quotes from local and national installers now.
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.
uPVC window prices
uPVC windows are generally the lowest cost option but this doesn’t necessarily mean they’re not the right choice for your home.
High-quality uPVC frames are highly thermally efficient and long lasting. They are also easy to maintain with an occasional wipe down being all that’s needed to keep them looking their best. However, poor quality uPVC can warp over time so the absolute cheapest you can find 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 | ||
|---|---|---|
| Size of Window (mm) | Price per uPVC Casement Window – Ground floor | Price per uPVC Casement Window – Second floor |
| 600 x 900 | £250 – £350 | £300 – £400 |
| 900 x 1200 | £400 – £550 | £450 – £600 |
| 1200 x 1200 | £650 – £750 | £800 – £900 |
These costs are averages. Get a local installer to QUOTE now!
Aluminium window prices
Aluminium frames 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. Aluminium frames can also be supplied in a range of colours so they remain consistent with the look and style of your home.
Here are the average costs* for the supply of aluminium framed double glazing.
| Aluminium window prices | ||
|---|---|---|
| Size of Window (mm) | Price per Aluminium Casement Window – Ground floor | Price per Aluminium Casement Window – Second floor |
| 600 x 900 | £550 – £600 | £600 – £700 |
| 900 x 1200 | £650 – £750 | £700 – £800 |
| 1200 x 1200 | £750 – £850 | £900 – £1,000 |
These costs are averages. Get a local installer to QUOTE now!
Timber window prices
Timber frames 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 you should ensure you are buying quality windows from a reputable installer.
Timber frames are available in either hardwood or softwood and in a range of finishes. It’s worth remembering that, in addition to their higher cost, they also require more ongoing maintenance than uPVC or aluminium.
Here are the average supply costs* of timber framed double glazing.
| Timber window prices | ||
|---|---|---|
| Size of Window (mm) | Price per Timber Casement Window – Ground floor | Price per Timber Casement Window – Second floor |
| 600 x 900 | £850 – £950 | £900 – £1,000 |
| 900 x 1200 | £1,200 – £1,300 | £1,300 – £1,400 |
| 1200 x 1200 | £1,350 – £1,450 | £1,400 – £1,500 |
*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!
Whichever material frames you go for, it’s always a good idea to shop around for local quotes to find the best possible deal for your new window installation. 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 ensures that you’ll receive the best quality products and services.
It could take you several hours to find the best possible company to work with. Not great if you’re in need of an urgent window replacement, or simply don’t have the time. This is where GreenMatch’s exclusive quotes service can help you.
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.
- Quotes from local engineers
- Payment by finance available
- Save up to £180 per year
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.
Casement windows prices
Casement windows are one the most commonly found on 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.
| Casement windows prices | ||
|---|---|---|
| Size of Window (mm) | Style | Price per window (not including installation) |
| 600 x 900mm | Fixed | £150 – £200 |
| 900 x 1200mm | Fixed | £200 – £250 |
| 1200 x 1200mm | Fixed | £250 – £300 |
| 600 x 900mm | 1 Opener | £250-£400 |
| 900 x 1200mm | 1 Opener | £400-£600 |
| 1200 x 1200mm | 1 Opener | £650-£900 |
| 600 x 900mm | French | £450 – £500 |
| 900 x 1200mm | French | £500 – £700 |
| 1200 x 1200mm | French | £750 – £1,000 |
These costs are averages. Get a local installer to QUOTE now!
Sash window prices
Sash windows are most commonly found on Georgian and Victorian homes and add a really distinctive, traditional look for 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 window prices | |
|---|---|
| Size of Window (mm) | Price per window (not including installation) |
| 600 x 900mm | £550 – £650 |
| 900 x 1200mm | £675 – £825 |
| 1200 x 1200mm | £850 – £1,100 |
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 which is perfect for homes where safety of children is a concern.
| Tilt & turn window prices | |
|---|---|
| Size of Window (mm) | Price per window (not including installation) |
| 600 x 900mm | £350 – £500 |
| 900 x 1200mm | £550 – £750 |
| 1200 x 1200mm | £800 – £1,050 |
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 window prices | ||
|---|---|---|
| Size of Window (mm) | Style | Price per window (not including installation) |
| 2400 x 1200 | 3 section | £1,590 – £1,725 |
| 3000 x 1200 | 3 section | £1,750 – £1,860 |
| 3000 x 1500 | 3 section | £2,200 – £2,300 |
| 3000 x 1200 | 4 section | £1,775 – £1,875 |
| 3600 x 1200 | 4 section | £1,920 – £2,020 |
| 3600 x 1500 | 4 section | £2,070 – £2,170 |
| 3600 x 1200 | 5 section | £2,200 – £2,500 |
| 4000 x 1200 | 5 section | £2,405 – £2,705 |
| 4000 x 1500 | 5 section | £2,600 – £2,900 |
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 will typically include more sections to create a rounded effect.
| Bow window prices | ||
|---|---|---|
| Size of Window (mm) | Style | Price per window (not including installation) |
| 2400 x 1200 | 3 section | £1,800 – £1,950 |
| 3000 x 1200 | 3 section | £1,950 – £2,150 |
| 3000 x 1500 | 3 section | £2,400 – £2,500 |
| 3000 x 1200 | 4 section | £1,975 – £2,175 |
| 3600 x 1200 | 4 section | £2,190 – £2,220 |
| 3600 x 1500 | 4 section | £2,370 – £2,470 |
| 3600 x 1200 | 5 section | £2,400 – £2,600 |
| 4000 x 1200 | 5 section | £2,605 – £2,805 |
| 4000 x 1500 | 5 section | £2,800 – £3,000 |
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 their expert advice. To be matched with up to 4 professional windows installers in your area, without having to spend hours on end contacting different installers one by one, you can use our free quotes service!
We will only match you with the best installers in your local area. With a nationwide company, you will likely pay far more for the delivery of parts and labour, as well as the overhead costs. Whereas a local company can offer a faster, more personalised service, for far less.
With us, all of your quotes come free, fast, and with no obligations. Get started today by clicking the button below.
- Quotes from local engineers
- Payment by finance available
- Save up to £180 per year
How to measure your windows
When taking the measurements for your new windows remember to do so in millimetres (mm). 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 so if you’re having a total overhaul remember to ask the question!
Not sure how to measure your windows correctly? Take a look at our step by step guide to measuring your old windows for replacement.
The average size of windows
The average sizes of different window types are as follows (width x height):
- Casement windows:
635mm x 890mm | 736mm x 1,194mm
- Sash windows:
914mm x 609mm | 1,219mm x 914mm | 1,524mm x 1,219mm | 1,829mm x 1,524mm
- Bay windows
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 widths | Standard 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) |
Double glazing vs secondary glazing
Double glazing prices sit at around £350 – £600 per window. However, double glazing prices will vary from installation to installation and will depend on:
- Size of the window
- Frame material
- Style
- Type of glass
- Rates charged by the installer – compare quotes to find the most competitive price
Thanks to being an effective insulator, double glazing will help to keep your home warmer and reduce outdoor noise, double glazing is well worth the investment. The Energy Saving Trust found that typical gas heated homes across England, Scotland and Wales could be saving up to £195 a year – just by having A+ double glazing installed.
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. Take a look around at the options on the market, ask friends and family for recommendations and possibly even neighbours with similar homes if they’ve had new windows installed recently. This will give you a great foundation so that you can give them a clear steer from the start as to what you’re looking for in terms of frame materials and style of windows.
To provide accurate quotes for your new windows the sales representative or tradesperson will need to visit your home. Don’t let any trader pressure you to agree to a quote based on ‘today only prices’. Hard sell tactics are usually an indication of poor quality products and services.
The same can also be said for especially low installation rates. As a rule of thumb, if their rates seem too good to be true, they probably are! That’s another reason why comparing quotes is preferable since you’ll get a sense for 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 experience they have, as well as 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 body such as FENSA or Certass and relevant certification
- Removal and disposal of your old windows
We advise you to get as many quotes as you can but it’s really important that you compare more than a single quote to be sure you’re getting a competitive price. A very good tactic is to consider quotes from both a leading installer like Everest, Anglian or Safestyle against a local, independent window fitter. Remember to compare a like for like service so you can see the difference in window prices and ask specific questions.
To learn more about the best double glazing companies operating in your home country, check out our local windows pages:
If all this time and research seems like a lot to you- you’re not alone. That’s why we provide our free and fast quotes service that allows you to receive up to 4 tailored quotes from top-rated professionals in your area.
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.
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.
- Quotes from local engineers
- Payment by finance available
- Save up to £180 per year
Frequently asked questions
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