Getting new windows for your house might seem like a daunting task, but getting the average price for new windows is a good place to start. It helps you get an estimate of what you might be expected to spend.

What’s more, just the act of getting the information to get you the average price for new windows gets you thinking about the important details!

Now, you may be wondering, “What important details?”

Here’s the thing:

The average price for new windows depends on a number of factors, including how many windows you want!


average price of windows


At a very superficial level, simply the size of the house and the number of windows gives you a very basic idea of the average price for new windows. For a small flat with 4 windows, the average price for new windows would start around £2,140. This figure is based on the cost of double glazed uPVC casement windows and their installation.

Similarly, for a house with 8 windows, the average price for new windows would start around £4,500, including installation. A house with 10 windows could start at an average price for new windows of about £5,450, and a 15-window house would be £8,450.

These figures are very basic, and don’t take into consideration anything other than a standard number of windows with a uPVC frame, and the installation costs. The problem with going by these figures is that you might end up with an average price for new windows that is nowhere close to this.

Why is that?

Simply because there is much more that needs to be factored in before you can get a more accurate quote. Let’s take a look at some of the factors that would affect the average price for new windows.

Do You Want The Average Price for New Windows or are You Replacing Old Windows?


Double Glazing Installation

The average price for new windows installation in a brand new house is completely different from the price of replacing old windows.

For one thing, you may or may not want to replace all windows. The price will depend on how many windows you want to replace and what you want to replace them with.

For another, the average price for new windows installation does not have to include dismantling and disposal of old windows.

When replacing windows, the average price for new windows installation may also vary from installer to installer. A small local establishment run by one man might do it for around £50 per window, while the same might cost you around £75 if you got a large national installer to do it.

What Is The Average Price For New Windows Of Different Styles?

We discussed a very basic average price for new windows based on the cost of casement windows. Casement windows are the most basic window style, and are the most popular in the UK. These are single or double-door windows that swing open outwards on hinges attached to the side of the frame.

Since these are the most basic design, they are also the cheapest.

The average price for new windows of 100cm x 100cm uPVC casement starts from £325 and goes up to £420, complete with installation.

The sash window, on the other hand, is more expensive. Sash windows are windows that slide upwards or downwards to open. For a double glazed sash window of the same size, 100cm x 100cm, and same material, uPVC, the average price for a new window would start from £640 and go up to £820.

A tilt and turn window, while not as expensive as sash, is costlier than casement. These windows that are tilted to open are good for places where you need to control the amount of ventilation. A 100cm x 100cm double glazed tilt and turn window made of uPVC would start from £490 and could go up to £625.

A 100cm x 100cm dual turn window has a higher average price for new windows than a tilt and turn but lower than a sash. A double glazed dual turn window of that size starts at £525 and goes up to £670.

The average price for new windows is also dependent on their size. A casement window of 100cm x 100cm is more expensive than that of 50cm x 50cm. The smaller size starts at £275 and goes up to £360.

The rule of the thumb is, the larger the size of the window, the higher the average price for new windows of that size.

What Is The Average Price for New Windows With Frames of Different Materials?


uPVC window frame


The window style and size are not the only consideration when you are looking for double glazed windows. Another very important factor when calculating the average price for new windows is the material of the frame. Since frames can determine the appearance of your windows, and your house, they are quite important!

Frames for double glazed windows come in three materials in the UK. These are Wooden, Aluminium, and uPVC. Of the three, uPVC is the most commonly used. Its popularity can be attributed to its multiple advantages over the other two.

What Features do the Three Materials Offer?

  • Lightweight: Both aluminium and uPVC are light materials. Wood, on the other hand, is heavy.
  • Maintenance: uPVC requires little by way of maintenance as does aluminium. Wood requires the most effort in upkeep.
  • Durability: All three materials are very durable. However, wooden frames need a lot of work in order to make them last long. The cost and effort of upkeep should be added to the average price for new windows to get a better idea of the expenses.
  • Energy-efficiency: uPVC and wood are highly energy-efficient. Aluminium, on the other hand, has very poor energy-efficiency.
  • Appearance: Of the three types, wooden frames look the best. They look natural and give the house an everlasting appeal. In comparison, uPVC and aluminium don’t give that same appearance.

However, since both materials come in many different colours, it is possible to customise the appearance of both to suit your sense of aesthetics. When calculating the average price for new windows, you should know that wood and aluminium cost about 30% and 50% more than uPVC.

So, if you’re doing at a small flat with 4 windows, the average price for new windows with uPVC frames would be about £2,140, complete with installation costs. The same set-up but with aluminium frames would cost £2,288 with installation. With wooden frames, however, the average price for new windows would be as high as £3,508.

These prices are for frames with basic finishes. If you are looking for custom colours and finishes, that would increase the average price for new windows. You can buy aluminium and uPVC frames in wood finishes, but these would be dearer than basic white frames.

How Does The Location Affect The Average Price For New Windows?


installing new windows

When getting a quote for the average price for new windows, you also need to include the location of the windows.

Why is that?

Quite simply, the location of the windows makes a difference in the price of installation. If the windows are not on the ground floor, or not accessible easily from the ground, the installation would require scaffolding. The scaffolding and setting it up would cost extra, and will add to the average price for new windows.

How much of a difference does the floor make? Let’s see a price comparison.
A 60cm x 90cm uPVC window on the ground floor costs between £500 to £570 to buy and install. The same window on the second floor costs £560 to £625 to buy and install.

Aluminium windows of the same size cost between £540 and £605 to buy and install on the ground floor. On the second floor, the average price for new windows and installation goes up to between £605 and £680.

The average price for new windows with wooden frames is even higher. On the ground floor, it would cost you between £845 to £910 to install a window. On the second floor you can expect the average price for new window and installation to fall between £900 to £970.

How Does Glass Type And Design Affect The Average Price For New Windows?

Did you know that if your window is 800mm or less from the floor, it needs to have toughened glass installed instead of regular glass? What’s toughened glass? It’s glass that has been heat-treated to shatter into crystals when it breaks. It is much safer than regular glass, which breaks into dangerous shards when it breaks.

How does this affect your average price for new windows? Toughened glass can add around 20% to the cost of the individual units. Even if you are not using toughened glass, simple design features like Georgian bars and lead designs will add a minimum of £30 to your average price for new windows.

What Is Our Average Price For New Windows?

If you want to get a general idea of our average prices for new windows, check out our rates table!

uPVC Window Guide Prices

uPVC Casement Window Prices (Fixed Window)

Casement Window Size Colour Guide Price
500mm x 500mm White £150 – £175
500mm x 500mm Wood Grain £175 – £200
1000mm x 500mm White £175 – £200
1000mm x 500mm Wood Grain £200 – £250
1000mm x 1000mm White £200 – £250
1000mm x 1000mm Wood Grain £225 – £275
1200mm x 1200mm White £225 – £275
1200mm x 1200mm Wood Grain £250 – £300

 uPVC Casement Window Prices (1 Opener)

Casement Window Size Colour Guide Price
500mm x 500mm White £250 – £300
500mm x 500mm Wood Grain £300 – £350
1000mm x 500mm White £275 – £325
1000mm x 500mm Wood Grain £325 – £375
1000mm x 1000mm White £300 – £350
1000mm x 1000mm Wood Grain £350 – £400
1200mm x 1200mm White £350 – £400
1200mm x 1200mm Wood Grain £400 – £450

French Casement Window Prices

Casement Window Size Colour Guide Price
500mm x 500mm White £450 – £500
500mm x 500mm Wood Grain £575 – £625
1000mm x 500mm White £475 – £525
1000mm x 500mm Wood Grain £600 – £650
1000mm x 1000mm White £500 – £550
1000mm x 1000mm Wood Grain £625 – £675
1200mm x 1200mm White £525 – £575
1200mm x 1200mm Wood Grain £675 – £725

uPVC Sash Window Prices

Casement Window Size Colour Guide Price
500mm x 500mm White £525 – £600
500mm x 500mm Wood Grain £625 – £700
1000mm x 500mm White £600 – £700
1000mm x 500mm Wood Grain £700 – £800
1000mm x 1000mm White £625 – £725
1000mm x 1000mm Wood Grain £725 – £825
1200mm x 1200mm White £725 – £825
1200mm x 1200mm Wood Grain £850 – £950

Tilt And Turn Window Prices

Tilt &Turn Window Size Colour Guide Price
800 x 800 White £400 – £450
800 x 800 Wood Grain £525 – £575
1000 x 800 White £450 – £500
1000 x 800 Wood Grain £550 – £600
1000 x 1000 White £475 – £525
1000 x 1000 Wood Grain £575 – £625
1200 x 1200 White £500 – £550
1200 x 1200 Wood Grain £625 – £675

Bay Window Costs

A bay window cost will vary between installers but you can get an average price for an installation with our free, online quoting engine. Simply enter the measurements of your bay window (see how to measure windows) and receive an instant bay window quote.

Start your free bay window quote.

In order to get an accurate online quote, please select a style of window to make up each section of the bay window individually.

Bay Window Prices (3 Section)

Casement Window Size Colour Guide Price
2400 x 1200 White £1050 – £1150
2400 x 1200 Wood Grain £1150 – £1250
2400 x 1500 White £1125 – £1225
2400 x 1500 Wood Grain £1250 – £1350
3000 x 1200 White £1150 – £1250
3000 x 1200 Wood Grain £1275 – £1375
3000 x 1500 White £1250 – £1350
3000 x 1500 Wood Grain £1375 – £1475

Bay Window Prices (4 Section)

Casement Window Size Colour Guide Price
3000 x 1200 White £1400 – £1500
3000 x 1200 Wood Grain £1525 – £1625
3000 x 1500 White £1500 – £1600
3000 x 1500 Wood Grain £1650 – £1750
3600 x 1200 White £1500 – £1600
3600 x 1200
Wood Grain £1650 – £1750
3600 x 1500 White £1600 – £1700
3600 x 1500 Wood Grain £1750 – £1900

Bay Window Prices (5 Section)

Casement Window Size Colour Guide Price
3600 x 1200 White £1850 – £2000
3600 x 1200 Wood Grain £1900 – £2050
3600 x 1500 White £1950 – £2100
3600 x 1500 Wood Grain £2050 – £2200
4000 x 1200 White £1900 – £2050
4000 x 1200 Wood Grain £2000 – £2150
4000 x 1500 White £2050 – £2200
4000 x 1500 Wood Grain £2150 – £2300

Bow Window Prices (3 Section)

Casement Window Size Colour Guide Price
2400 x 1200 White £1050 – £1150
2400 x 1200 Wood Grain £1150 – £1250
2400 x 1500 White £1125 – £1225
2400 x 1500 Wood Grain £1250 – £1350
3000 x 1200 White £1150 – £1250
3000 x 1200 Wood Grain £1275 – £1375
3000 x 1500 White £1250 – £1350
3000 x 1500 Wood Grain £1375 – £1475

Bow Window Prices (4 Section)

Casement Window Size Colour Guide Price
3000 x 1200 White £1400 – £1500
3000 x 1200 Wood Grain £1525 – £1625
3000 x 1500 White £1500 – £1600
3000 x 1500 Wood Grain £1650 – £1750
3600 x 1200 White £1500 – £1600
3600 x 1200
Wood Grain £1650 – £1750
3600 x 1500 White £1600 – £1700
3600 x 1500 Wood Grain £1750 – £1900

Bow Window Prices (5 Section)

Casement Window Size Colour Guide Price
3600 x 1200 White £1850 – £2000
3600 x 1200 Wood Grain £1900 – £2050
3600 x 1500 White £1950 – £2100
3600 x 1500 Wood Grain £2050 – £2200
4000 x 1200 White £1900 – £2050
4000 x 1200 Wood Grain £2000 – £2150
4000 x 1500 White £2050 – £2200
4000 x 1500 Wood Grain £2150 – £2300

Calculator For Average Price For New Windows

If you want a more accurate estimate, you can use our Rates Calculator to calculate the average price for new windows. This easy-to-use calculator will help you come up with a very realistic estimate of what it will cost you to install or replace your windows.

You can save this quote for future reference as the link to it will be emailed to you. You can even amend the features and requirements later, if your needs change.

What Should The Quote For The Average Price For New Windows Include?

The average price for new windows is not just the cost of the tangible materials. It also includes the labour cost of installation. When you get a quote, you want it to be as transparent as possible and to contain the breakdown of every possible expense.

What should the quote include?

It should include a description of the number of windows, their sizes, and their style. The material and colour of the frames should be listed. It should also have the cost of labour and building materials broken down for you.

Our unique quote we generate for you includes:
• A complete technical survey
• The sizes, styles, and colours of the windows
• The energy rating of either A, B, or C
• Security features
• Glazing Type
• Handles
• External Cills
• Full installation, inclusive of colour-matched trims, fixings, silicones, and sealants
• Registration with an industry body like FENSA or Certass
• Removal and disposal of old windows

Since our quote is quite comprehensive, you can be assured that there will be no surprises or hidden costs later! The average price for new windows will remain largely unchanged, but subject to a full technical survey from your trusted local supplier. The quote might change after a full technical survey has been carried out.

How Do You Ensure The Lowest Possible Average Price For New Windows?


Save money with competitive double glazing prices

The best way to get the best possible average price for new windows is to shop around before making a purchase. Our recommendation would be to get quotes from at least three different suppliers. You should also get quotes from installers and find the one that works out best for you.

Most suppliers would be happy to recommend reputed local installers or you can choose to go with a national installer. The local company would obviously be cheaper, and you might not have to wait or have a minimum order. You may even ask to see their work as it will be local.

However, you would need to ensure they are certified and will give you the best possible service. If you would rather not risk it, go with a national company. They will have all the certifications and a standardised set of services that you don’t need to worry about.

Finding out the right average price for new windows for your house is not as difficult as you might have initially believed. It is simply a matter of identifying exactly what you want and finding the right suppliers for it. Go about it wisely, and you will end up with the perfect average price for new windows in your house.

Get started now with our online price calculator for new windows!

Frequently Asked Double Glazing Questions

Frequently Asked Double Glazing Questions

How much does it cost to replace a sash window?

The cost of replacing a sash window will depend on many factors including: style, size, material and glazing. A wooden sash window will cost significantly more than a uPVC sash window. A wooden sash window can cost up to £1000. Wooden windows are more expensive to manufacture so expect to pay that bit more. uPVC sash windows can be designed to mimic wood and are much cheaper in price. The starting price for a standard uPVC sash window is on average £525.

Can I install double glazing into my original sash windows?

This will depend upon what type of window you have. Replacing existing moving sashes with new, double glazed replicas might to be possible.

How much does sash window restoration cost?

The cost of sash window restoration will depend on the survey result. Standard draught proofed sash windows (without sill replacement) usually starts at about £500 per window. The time taken will also depend on the survey result.

Should I replace my old sash windows?

Sash windows are a key feature for many traditional period buildings. Sash windows were traditionally built using timber, which is fairly high maintenance and has a tendency toward rotting and warping. Over time, these windows can become draughty and insecure. uPVC sash windows are a great way to experience the benefits of modern double glazing, without sacrificing the aesthetic of your home. uPVC sash windows will not rot or warp and require little maintenance. They are also thermally efficient, which means that your home will not require as much heating.

How much does it cost to install a window?

The prices given in our pricing tables, our online quotes and our costing calculators reflect the price of the window itself as well as the cost of installation. For example, a 500mm x 500mm casement window will cost between £150 and £175 including the cost of installation.

Why Is uPVC Used For Window Frames?

UPVC is used for window frames because it strong, durable, energy efficient and long lasting.

How Long Does It Take To Install A New uPVC Window?

Once you place your order for a new window, it takes 4-6 weeks to build and manufacture the product. On the day of installation it could take anywhere from 3 hours to a whole day, depending on size, shape and style of window.

How Long Does It Take To Install A Window?

From the moment you purchase your window it will take anywhere between 4-6 weeks to build and manufacture your window for you. The actual installation itself could take anywhere between 3 hours to a full day.

Should I Double Glaze My Windows?

Double glazing works to make your house more energy efficient saving you money on your heating bills. Double glazing also provides sound insulation which is perfect if your house is situated near busy roads and noisy areas. Double glazed windows are also tougher and harder to break than single glazing windows making your house more safe and secure.

Can My Windows Be Installed In Cold And Rainy Weather?

Yes, windows can be installed in any weather, however, it is important to remember the safety of the installers who come to put in your window and that the rain could damage things your property due to the fact there will be a hole in the wall for quite some time during installation.

How Long Does It Take To Install uPVC Windows?

On installation day, a uPVC window will take anywhere from 3 hours to a full day depending on the shape, size and style of the window. When you place your order, it will take anywhere between 4-6 weeks to build and manufacture the parts for your bespoke window.

Is double glazing easy to break?

Double glazing is a strong option for windows compared to single glazing. The frames are durable and there are high security locking options. As double glazing is made from glass it is possible to break however you will have to exert quite a bit of force to do this. This is practically impossible to do without making a noise.

Is triple glazing better than double glazing?

In most instances double glazing will be an adequate upgrade to single glazed windows. Double glazing offers energy efficiency, noise reduction and security. If you live near a busy road or under a flight path you may want to consider triple glazing for the extra noise reduction that it can offer.

Is double glazing expensive?

Double glazing can be an affordable addition for many homeowners. The price you pay can depend on the quality of the windows and the energy ratings. Other factors are the style of the windows, the colour of the frames and the type of glass. Why not get an online double glazing quote to get an idea of the price.

What is the average cost to double glaze a house?

The average cost to double glaze a house will depend on the size of your house and the number of windows. To double glaze a flat or apartment it will probably cost around £2,000. The average cost to double glaze a house is usually between £4,500 to £7,500. If you collect a number of double glazing quotes you will be able to compare companies and prices.

How much is double glazing per window?

Double glazing prices per window can vary from around £150 to £600 depending on the specification. The window style, type of glass, frame colour and handles are all contributing factors. To find out the true double glazing price per window it is a good idea to get a number of quotes to compare.

What Makes Flush Sash Windows Different?

Flush sash casement windows are specifically designed to imitate the appearance of traditional wooden timber windows by appearing to have the same sashes that finish 'flush' with the outside face of the window.

Can Bay Windows Look Modern?

Bay windows can easily be either modern or traditional depending on the combination of glass and / or coloured uPVC profiles now available. Subsequently, its easy for these windows to seamlessly blend in with contemporary or old properties.

Bay or Bow Window?

Simply put, it really depends! Bay windows offer often much welcome and useful extra storage space to the frontage of homes. On the other hand, bow windows provide a curved shape alternative in terms of look compared to bay windows. They are both beautiful options and can add much character and charm to the right property.

How Much Do Double Glazed Sash Windows Cost?

UPVC sash window prices will vary according to glazing style, your choice of locks and even your chosen colours and finishes. You can get an average sash windows cost using our window cost calculator.

Replacement Sash Windows In A Conservation Area

If your home is a listed property or within a conservation area then you will need to seek planning permission.

Why Should I Choose a UPVC Sash Window?

UPVC sash windows are incredibly attractive and make a stunning addition to any property and are relatively low maintenance thank to their UPVC design. You can enjoy a traditional aesthetic for many years to come thanks to their long standing properties.

Are UPVC Sash Windows Easy To Use?

UPVC sash windows are very easy to use. Their spiral balance mechanism allows for smooth operation so you can open and close your windows with ease. UPVC sash windows are also incredibly low maintenance and require very little cleaning.

How do UPVC Sash Windows Work?

UPVC vertical sliding sash windows are built to either slide vertically downwards or upwards. This opening function makes the UPVC sash window much easier to use compared to traditional wooden windows where the only choice is double hung and single hand.

How Much Do French casement windows cost?

The cost of French casement windows will vary depending on installer but you can get an average casement windows cost using our free online quoting engine

How Does The Tilt and Turn Window Mechanism Work?

The tilt and turn window can be ‘tilted’ inwards due to its unique turning action which allows the window to be easily accessed from both inside and out. All it takes is a swift turn of the handle.

Where Can I Get A Tilt and Turn Windows Price?

You can get a tilt and turn windows price using our window cost calculator which will give you a free and unique quote within a matter of minutes.

What is a Casement Window?

A casement window is attached to its frame by one or more hinges. A casement window is hinged at the side allowing them to open extremely wide. These windows can double up as emergency exits and are perfect for hard to reach places within the home, with many home owners installing these windows behind their kitchen sinks.

Can I Choose My Casement Window Handles?

Your double glazing installer will offer you a choice casement window handles and casement window hardware options so you can achieve the perfect look.

Are There Different UPVC Casement Window Sizes?

UPVC casement windows come in a wide range of sizes to suit your property. You can specify your casement window size in our window cost calculator to get a unique window price!

What Are Flush Casement Windows?

Flush casement windows are where the unit sits flush to the frame, creating a super sleek look.

Will I Have A Choice of Casement Window Locks?

A high security lock will be fitted as standard with your new casement window but your double glazing installer will also offer a choice of security upgrades.

Are There Other UPVC Casement Window Styles?

Other UPVC casement window styles include the French casement window which is a more traditional take on the standard casement style.

How Can I Get Casement Window Prices?

You can get instant casement window prices by using our free online quoting engine or you can contact us on: 0800 015 5679 to speak to one of our advisors.

How Long Will It Take To Install My Casement Window?

Because every job is different, it is best your talk to your double glazing installer who will be able to give you an exact timescale.

What Colour Options are Available?

There is a wide range of colour options available including both standard and bespoke colours and finishes. Aluminium windows and doors even come available in a RAL colour chart which gives you an infinite choice.

Do UPVC Windows Need Trickle Vents?

Trickle vents are not a requirement, however they do offer additional ventilation without the need for opening your windows so can be a valued add on.

What Does UPVC Stand For?

UPVC is an abbreviation for unplasticised polyvinyl chloride which is used in window frames.

Do UPVC Windows Look Cheap?

UPVC windows do not look cheap. They can be designed to offer slim sightlines and come in a wide variety of colours and finishes, not just the standard white. Authentic woodgrain finishes are available to achieve more of classic look.

Do UPVC Windows Discolour?

Your UPVC window will never rot, rust, peel or flake due to its long lasting material. An occasional wipe clean is all that is required.

Are Double Glazed Windows Good For The Environment?

Once of the best ways of making your home more energy efficient is insulation. Double glazed windows act as another layer of insulation, helping to prevent the loss of valuable heat.

Are Double Glazed Windows Soundproof?

Double glazed windows are built to provide improved sound insulation. Double glazed windows are recommended for homes situated on busy roads or built up areas where external noise can be a problem.

How Much Do Windows Cost?

Window prices will depend on your specifications such as size, style, glass type and security locks. At Double Glazing on The Web you can get an instant window cost online using our online quoting engine. Simply choose your window style and enter your window measurements to receive a unique window price.

What Are Double Glazed Windows?

Double glazed windows feature two panes of glass for better heat insulation and noise reduction. Window frames come in a variety of materials such as UPVC, wood and aluminium. Double glazed windows also come in a choice of styles to suit your home, you can choose from a wide range of window designs which include the casement window, tilt and turn window, sash window, sash horn window and bay window.

What Happens if I Have a Problem with my Windows or Doors?

All of the double glazing installers in our network offer product guarantees. Provided you are still covered by your manufacturer's guarantee, all you need to do is contact the installer in question and they will either repair or replace your windows and doors.

Condensation on Double Glazed Windows

When moisture in the air suddenly cools and condenses on a cold window, you get condensation. Well insulated (Low E) double glazing will help prevent condensation from forming on the interior of your window. Replacement glass units or replacement double glazed windows are recommended for windows with condensation.

How Does Double Glazing Work?

Heat loss is greatly reduced using double glazing. Double glazing features two panes of glass with a layer of trapped air or gas in-between. Air is a poor conductor of heat so much less heat is lost through the window itself.

What is Double Glazing?

Double glazing is where windows have two layers of glass with air tight gap between them to reduce loss of heat as well as provide effective noise insulation.

Instant Online Window Prices