How Much Does Double Glazing Cost in 2020?

Double glazing prices can vary from as little as £150 to £600 for a single window. The price will depend on the window design, and the number of windows being installed. Read on to find out how much new double glazing costs.

Comparing double glazing costs is the best place to start. This way you can compare companies as well as their prices. How much double glazed windows cost can vary, so it’s important to find the best price for you.

What Are the Average Double Glazing Prices For A House?

Double glazing costs between £3000 and £5000 on average for a whole house.

The cost of double glazing will vary between homes. This is due to the style, size and number of windows.

Other considerations are energy rating, locking systems and frame colours.

If you shop around, get multiple quotes and compare prices, you can get very competitive uPVC window prices. You will still want to choose an installer you trust and are happy with, so not all your considerations will be led by how much your windows cost.

For instant personalised double glazing window prices online, use our replacement windows cost calculator.

If you buy multiple windows, some companies will lower the average cost of double glazing per window.

Some people may ask, ‘Why is double glazing so expensive?’ but if you shop around you can generally find a good deal. The cost of double glazing will vary, so get multiple quotes to compare window prices.

uPVC windows are considered the cheapest option. uPVC windows and doors cost roughly 30% to 50% less than wood or aluminium.

What is the Double Glazing Cost for a New Window?

A single casement window with a uPVC frame of 60cm x 90cm starts around £250.

To show how much of a difference there is in the double glazing cost between window styles, a sash window of the same size and material will start from around £500.

As a comparison between the difference in double glazing prices between different styles of windows, let’s take the cost and installation charge of a single 100cm x 100cm window with a white uPVC frame;

  • A casement window costs between £325 to £420
  • A sash window costs between £640 to £820
  • A tilt and turn window costs between £490 to £625
  • A dual turn window costs between £575 to £670

As you can see, that’s quite a variation in window prices and styles.

The size of your window also plays a huge role in determining the cost of your double glazed windows.

A typical 1800mm x 1200mm window might cost you £350, while a small bathroom window is more than half the price at £150!

You will want to find the best price for all your double glazing. Find the right front door cost for you to save money on all your home improvements.

Double Glazing Cost Calculator

New Window Price Example

The below casement window guide gives you some examples of how double glazing prices vary according to size.

Casement Window Size Colour Guide Price
500mm x 500mm White £143 – £159
500mm x 500mm Wood Grain £156 – £172
1000mm x 500mm White £159 – £175
1000mm x 500mm Wood Grain £183 – £203
1000mm x 1000mm White £203 – £225
1000mm x 1000mm Wood Grain £221 – £245
1200mm x 1200mm White £239 – £265
1200mm x 1200mm Wood Grain £271 – £299

What is the Double Glazing Cost for a New Window?

The cost to replace new windows UK wide can also vary geographically, and the cost of double glazing will also differ between companies.

Other factors such as the size of the specified window, style and material (such as wooden or uPVC windows) as well as glazing type will also affect your double glazing cost.

When you know all there is to know regarding your double glazing prices, having weighed up the pros and cons of each product offered, you can then make a well-informed decision regarding your new windows and doors.

Double Glazing Accessory Prices

You can expect the double glazing cost to increase when you make changes or additions to your new window designs, such as the frame and handle colours.

  • Do you want a gold or chrome handle?
  • Does wood finish sound more appealing to you?
  • Would you want a design on the glass?

If you answer yes to any of these, you can expect your new window or window replacement cost to increase.

The type of glass you want also affects your double glazing cost. Toughened glass is a requirement if your window is 800mm or less from the floor.

This is a specially treated glass that shatters into harmless crystals when it breaks. It is less dangerous than standard glass and offers higher safely.

As a result, you can include an additional 20% on the double glazing cost of each unit. Similarly, Georgian bars or lead designs can add at least £30 to your individual unit’s double glazing prices.

Get A Free Double Glazing Quote Today

Add Value to Your Home With Replacement Windows

Replacing windows in your home can add real value. Property expert Phil Spencer explains in the video:

Many benefits come with replacing the windows in your property.

These vary from stylistic improvements as upgrades to the aesthetics of your home, as well as functional benefits to keep you safer and more comfortable.

By choosing to replace windows UK homeowners will increase the value of their home and even save money in the long-term.

However, first of all, it is important to find the right price for the initial cost.

uPVC Double Glazed Window Guide Prices

We have selected some of the most common styles to show you double glazed windows prices online. You can see these below.

While this is not an exhaustive list of uPVC window prices, it should give you an idea about the average prices.

Our double glazed windows cost calculator has many more window styles to choose from. You can select different options to build your quote.

It is quick and easy to create a personalised double glazing quote. See the tables below for an immediate idea of how much your new double glazed window price would be.

uPVC Casement Window Prices (Fixed Window)

Casement Windows Casement windows feature a single-lever latch design that allows for smooth hand operation. They are the most common choice of uPVC window. Casement windows can be installed anywhere within the home. They have a timeless appeal combined with modern functionality.

Casement Window Size Colour Guide Price
500mm x 500mm White £143 – £159
500mm x 500mm Wood Grain £156 – £172
1000mm x 500mm White £159 – £175
1000mm x 500mm Wood Grain £183 – £203
1000mm x 1000mm White £203 – £225
1000mm x 1000mm Wood Grain £221 – £245
1200mm x 1200mm White £239 – £265
1200mm x 1200mm Wood Grain £271 – £299

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

French Casement Window Prices

French Casement Windows French casement windows provide a wide opening. Both sashes open to about 90 degrees. When both windows are opened, one casement carries the central mullion. This provides good ventilation and unrestricted views.

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

Sash Window Prices

Sash Windows uPVC sash windows are designed to achieve a more traditional look for a home. The sash window is a classic style. This beautiful design marries both style and functionality. This gives you a traditional looking yet long lasting window. Mock sash windows are also available. They give the style of a sash window but can open like a casement window. Mock sash windows are generally cheaper than operational sash windows.

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 and Turn Windows uPVC tilt and turn windows are extremely easy to operate with a dual-action movement. This provides access to 3 different window operations: locking, open and tilting. These windows are particularly popular in upper floor windows and high rise properties. This is because the tilt and turn functionality allows easy cleaning from inside the property.

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

What do Bow and Bay Windows Cost?

A bay or bow window cost will vary between installers.

The price tables below will give you an idea of some bow and bay window double glazing prices.

Bay Window Prices (3 Section)

Bay Windows Like bow windows, bay windows will add a touch of elegance to a room. Bay windows protrude from the property in a more angular shape. They are not curved like bow windows. A traditional bay window protrudes at 45 degree angles. An alternative is a window with a 90 degree projection. This is called a box bay window. A popular addition to a bay window is a window seat.

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)

Bow Windows Units of similar size are joined together, creating a curved edge for bow windows’ distinctive aesthetic. This results in a wonderful, extended outside view. The bow window will blend beautifully into surrounding brickwork, with no unsightly corners.

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

With so many window styles available, you can trust your expert installer to find the right ideal design at the best double glazing cost for you. Other choices include:

uPVC Window Prices – Bifold Windows

Bifold Windows These practical windows are ideal for use in conservatories and orangeries. This is because they give you the option to be able to fully open up the side of the room, and they provide fantastic panoramic views of the outside.

They are great for ventilating a room on a hot day. Bifold windows are also a stylish and attractive addition to a home.

Compare double glazing prices online to find the best quote for you, no matter what type of new window you property requires.

uPVC Window Prices – Sash Windows

uPVC window prices vary according to style. The average cost of double glazing per window is subject to several factors.

If you are looking for uPVC sash windows, we can help. See double glazed windows prices online by using our handy replacement windows cost calculator. Select ‘Sliding Sash Windows’ from the menu for prices of this particular window style.

A sliding sash window is a complicated design. It will take more time to manufacture than a casement window, and replacing a whole house of sash windows will be slightly more expensive.

Sash windows are well suited to period properties. They are also a good choice for homeowners wanting a more traditional style.

New Window Cost Calculator

Which Double Glazed Window is Best?

Double glazed windows come in many design styles. With so many window styles available, there are lots of fully customisable options for you to choose from. You can be sure to find the right style for you and your property.

Which Double Glazed Windows Are the Best?

All of the double glazed window styles listed above have their own features and benefits. It completely depends on the property type and your personal taste.

Casement windows are a classic style and will suit most properties.

Tilt and turn windows are useful if you’d like a style of window that allows for increased ventilation. They can double up as an emergency exit. They also open easily with the ability to reach hard to clean areas. Tilt and turn windows are suited to modern properties with contemporary appeal.

Sash windows offer a timeless and classic charm. This is ideal for those looking for a traditional aesthetic with sophistication and elegance. Depending on your property type, you may want to feature a traditional style window like the sash window. Homeowners with a period or heritage home often favour this.

If you are looking for prices for any of these window styles, try our double glazed windows cost calculator. It will give you double glazed window prices online and a good idea of price before you speak with a supplier.

double glazing cost

How Can You Find the Best Double Glazing Cost?

In the UK average double glazing prices for uPVC windows depend on a number of factors. Different companies price their windows in different ways. They may have their own double glazed units price list that they use a specific replacement glazed units price calculator to generate. Some companies offer a range of window products that vary in price.

Either way, if you are looking for cheap double glazing, arm yourself with some facts. This will give you an idea of average window prices in advance.

When you’re looking for prices for your new windows, it’s best to shop around. You can use our double glazing cost calculator to get an instant personalised quote. You can also use the double glazing price tables used throughout this article for reference.

To find the best double glazing cost for you, you will want to shop around.

Why Should You Compare Double Glazing Prices?

Researching the home improvement market will make you more aware of how much double glazing costs. It will also give you an idea of the different products that companies offer. As an example, not all uPVC windows are the same.

Some companies may offer different double glazed windows products. These may have a different average cost per window.

There will also be promotions that run throughout the year at different times for various companies. With sales often appearing on sites at unexpected times, it will be difficult to choose precisely the right moment to invest.

That’s why, when you choose to upgrade to new double glazed windows, you can use our online cost calculator to compare prices and find the best ones for you at any time.

After a little research, you will know what you are after. Factors to consider that will affect uPVC window prices are as follows:

What is the Double Glazing Cost Per Window?

The double glazing cost per window will ultimately depend on the size of the unit.

The prices we give as an example include survey and installation, as well as a warranty and removal of the existing window.

We would recommend that you create several quotes for different styles so you can compare double glazing prices.

It is also a good idea to get quotes from several uPVC window suppliers to find the right choice for you.

uPVC Window Prices vs Aluminium Window Prices

In general uPVC windows are cheaper than aluminium windows. They are also cheaper than timber windows due to material costs.

This is why uPVC windows are often the material of choice for homeowners looking for cheap double glazing.

Purchasing new windows is a big investment. It is important you choose good quality uPVC windows for the best style and functionality.

uPVC windows tend to be the product of choice for residential properties. They are well-suited to houses and can really enhance the look of a home.

They come in many styles and colours with plenty of modification options. Our double glazing cost calculator can give you new window prices online.

You can get uPVC window prices for many styles and options.

Aluminium windows tend to be more common in commercial properties. If you are interested in aluminium window prices, it is worth speaking to your supplier.
Get A Free Double Glazing Quote Today
uPVC sash window prices

Factors That Will Affect Your Double Glazing Price

The cost to replace windows UK wide will be affected by various factors throughout the process.

The kind of installer you choose to buy with, the size of the double glazed area you need and the material you want for your frame will all cause your cost to vary.

Consider the window options available to you as well as the double glazing prices in your area when you receive a new window quote.

Local Double Glazing Installers vs National Installers

It is a good idea to get double glazed window prices from both local and national suppliers. As with anything you buy, it is important to be happy with the company you choose.

Of course, the price is important. However, so is the customer service you receive. Aftercare and warranties on offer are also worth considering to give you peace of mind.

Some people will prefer a local company, as they enjoy the more personal service they can provide. Others may opt for a national company, due to the increased selection of products and services they may offer.

Homeowners on the lookout for cheap double glazing will want to consider finance options and warranties, and also be aware of any promotions that companies will run from time to time.

The factors that can affect the price include where you live and which floor the window is for.

Does the Size of Windows Change Your Price?

The size of your windows will affect the cost of double glazing. Small windows like a bathroom window will be cheaper to replace. However, some companies will have a minimum order price. If you have several windows to replace, it may be more cost effective to have them all done at the same time.

If your windows are not on the ground floor, double glazing prices may also include setting up scaffolding. This can affect the overall cost of your home improvements.

When designing your window, it’s important to bear in mind your individual needs. This doesn’t just include the optional extras you would like to add, such as security features, but also the needs of your property.

Remember, every property is unique, not only to you but to the installers working on it, so your window quote will reflect this.

Size and dimensions will also affect your new window price, as will design, finish, hardware accessories and materials. uPVC windows will be more affordable than wooden windows, for example. There are also other customisation options you can choose. These include Georgian bars and glass options.

As part of a very competitive market, the cost to replace windows UK homes will enjoy for many years is difficult to speculate on. That’s why it is sensible to compare double glazing prices and deals in your area. You should find a new window quote to suit your budget.

The cost of double glazing is going to be one of your first considerations when replacing your windows. You can get an idea of prices by using our replacement windows cost calculator.

How Does the Material of Window Frames Affect Your Price?

Double glazing prices for windows are hugely dependent on the material of the frames. In the UK, you have the option of three frame materials, so you can choose wood, aluminium or uPVC windows for your home.

Each of them has its own set of advantages and disadvantages. If your only consideration is the double glazing cost, then uPVC might be your best option.

Typically, wood and aluminium frames cost 30% to 50% more than uPVC windows. This can translate into a huge difference in double glazing prices.

What Are the Best Window Frames?

When it comes to your window frames, the thickness varies from 14 to 28mm depending on how large the window itself is.

The thicker the window, the better its energy performance will be. This will retain heat in your property and prevent the cold from outside entering your home. Thicker frames will also reduce noise pollution more effectively.

uPVC windows cost less as the frame is more affordable, making it a popular choice As a material, uPVC is also durable and low maintenance, so you won’t need to worry about spending time or money on the upkeep.

Furthermore, they won’t suffer from discolouration, or warp or rot over time.

However, some people prefer aluminium. It is a more expensive material choice for your frames compared to what uPVC windows cost. However, it is robust, strong and lightweight.

This makes it a flexible material that can result in higher glazing to frame ratio for unobstructed views.

cost to replace windows UK

What Are the Benefits of New Windows for Your Home?

There are many benefits to having uPVC windows installed in your home. Reliable new windows with upgraded glazing are a worthwhile investment that can save you money in the long term.

Double glazed windows help retain heat, keeping your home warmer for longer. You’ll find your energy bills may reduce over time. You may also become less reliant on boilers and central heating radiators, saving you money as you don’t need to reach for the thermostat.

Double glazed windows can significantly improve the security of your home. There are many high security locking options to choose from. This can save you money on insurance premiums, and will also give you peace of mind about the safety of your family and home.

Noise reduction is another advantage of double glazing. If you live near heavy traffic, you may find it beneficial to have new windows installed. Triple glazing is also an option if you are concerned about noise pollution.

Why is Double Glazing Better?

The cost of double glazing installation covers improved comfort and energy efficiency. State-of-the-art windows are intelligently designed to keep warm air trapped inside your home and to keep the cold out.

The energy performance of double glazing windows are rated on a scale of A++ to G. Grade C is the lowest a window fitter may install while still complying with government building regulations. You should aim to purchase as highly graded a window as possible. You will benefit from the best energy efficiency and insulation.

This helps to reduce energy bills, which will work to save you money in the long run. It can also decrease your carbon footprint for a truly eco-friendly new window.

Highly graded double glazed windows regulate the temperature inside your house, making it a comfortable and inviting place to spend time.

uPVC windows in particular are an excellent choice for vibrant and bright space as they will allow more natural light to fill your home.

Double glazing protects your home against the elements and adverse weather conditions. It will also add a layer of security to your home. Single or secondary glazing simply cannot match this.

If security is a significant concern, ask your window supplier about high security locking systems. They will be able to show you what is available.

The locking system you choose can affect the cost of double glazing, so it is good to bear this in mind.

As with any optional extras, it is essential to weigh up the cost against the benefits to you and your loved ones.

Energy Ratings

Your double glazing cost can be affected by how energy efficient the windows are. Double glazed windows are ranked for energy rating on a simple grading scale.

The A++ rating is the most energy efficient, while the G rating is the least energy efficient. If you are looking for cheap double glazing, you will find that the lower the energy rating, the cheaper it will be. However, it is worth considering the impact this might have on energy bills for your property.

Glass and Colours

The glass you choose can have an impact on double glazing cost. There are various options available for your new windows, including toughened, frosted and self-cleaning. In some cases, the toughened glass may be a requirement. Your chosen installer will be able to advise when this is necessary, and how it will affect your new window price.

For the colour, you may just be looking for white double glazed windows which are the most popular. However, there are many other colour choices available as well as wood effect options. You could choose something more contemporary like black, grey or green. The colour you choose can change how much your new windows cost.

You can take a look at our guide prices online as examples. Use our double glazing cost calculator to compare prices. If you are interested in colours other than white for your new windows, you can select these when creating your quote.

Double glazed windows also come with a range of hardware options. You can choose handles in different colours and styles to suit your property. Again, the options you choose will affect the final price of your installation.

It’s important to shop around for double glazing prices. Make sure you get the best home improvement products that are most suited to your individual needs.

Comparing double glazing prices will help save you money. There are a number of deals and options available to help you spread the cost. Some window companies have finance schemes in place, and you can often pay monthly rather than in one lump sum.

You can compare prices easily by using our double glazing prices calculator. Simply input your specifications and get an instant quote for window prices online.

Repairing and Replacing Double Glazed Units

You may be looking for double glazed units. These can be used to repair existing double glazed windows. The cost of these units can vary. There are several reasons for this.

Each company will have its own price list. It is worth speaking to both one-man-band repairmen and other companies so you can get multiple double glazing quotes and find the best price.

As always, it makes sense to shop around. If you can repair your existing windows, you may be able to save money on new windows.

In addition to this, you still want to make sure you find the best deal.

What is the Price for Replacement Windows?

You can expect to pay between £150 – £500 for a standard single replacement window. The wide range of options causes these variations in price.

The price for replacement windows will vary depending on the specification. Your chosen style and size are two factors involved.

For example, take a replacement double glazing sealed unit which has Georgian bars. The extra decorative detail and customisation of this option will mean you will see an increase in cost.

On average, these units should last around 10 years, and many manufacturers will offer a guarantee for this length of time.

Double glazing costs less if you choose to replace faulty or failing units. However, this cheaper option may only be a temporary solution. It is worth your while to compare repair costs and replacement costs.

You may find that the cost of double glazing is more affordable than you think.

Why not try our replacement windows cost calculator? This will give you a good idea of what you can expect to pay.

What is the Cost of Replacing Toughened Glass?

If your window frame is 800mm or less from the floor, then your glass will need to be toughened. Toughened glass is manufactured by heating the glass to a very high temperature. It is then cooled at a pre-determined rate, giving it the excellent resilience and durability that it is renowned for.

Toughened glass is up to five times as strong as ordinary glass, so it has to be hit much harder in order to break. If the glass does break, it does so in small crystalised pieces, which is less dangerous than shattering into shards of glass.

The process of toughened glass can add on around 20% to your double glazed windows price.

Double Glazing Alternatives

Before you receive your quote and confirm your double glazing cost, you may want to consider the alternatives.

Even if you are still going to choose double glazed windows, it can be useful to see the other options available.

If you live in a particularly noisy area, or if you own a heritage property, you may want to consider either triple glazing or secondary glazing.

Double Glazing vs Triple Glazing

You can increase the effectiveness of your windows by upgrading to triple glazing. This will raise the cost of your double glazing prices.

However, it can also heighten the security and energy efficiency of your home.

A room with triple glazing can be warmer than those that have single or double glazing.

This makes triple glazing a popular option for those looking to feel the benefits in the colder months. It is also popular among homeowners who live near busy roads or under flight paths.

Double Glazing vs Secondary Glazing

The cost of secondary glazing is cheaper than that of double glazing. Secondary glazing is when an extra layer of glass is installed on the inside of an existing window.

This is different from double glazed windows, which uses two sheets of glass with a gap between to create an insulating barrier for your home.

Secondary glazing is a cheaper alternative, however, and is not as effective at keeping heat within your property. It also has a lower level of noise insulation and security.

Most properties that are within conservation areas benefit from secondary glazing. It means the original window glass is kept in place and preserves the original aesthetic of the property.

This can also be true of listed buildings. If you have a listed property, it is worth asking about secondary glazing.

Secondary glazing is suitable for period properties that need to keep the original features without too much change. Secondary glazing is a discreet and efficient modernisation without needing new windows.

It allows a property to benefit from better thermal efficiency.

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sash windows cost

When Should You Replace Your Double Glazing?

Double glazing units tend to have a life span of up to 20 years. Around the 15-20 year mark is where you might want to consider looking into window replacement costs.

Lots of suppliers will offer a warranty. This can vary in length, so it is a good idea to ask about the warranties on offer.

One of the benefits of double glazed windows is that they are low maintenance. During the lifespan of your windows, maintenance tasks should be minimal.

Usually, just cleaning your new windows regularly should be enough to keep them looking good and in optimum condition.

How Much Does a Replacement Double Glazed Window Cost?

In certain cases, you might not need a complete overhaul of all your windows. You can control your double glazing cost by choosing a replacement window instead. The cost to replace one or several of your windows will depend on not just the price of the window unit but also who you get to install it.

A specialist company might charge you £75 per window, while a small local company run by one man might do it for £50.

A large well-known company comes with a reputation and quality assurance. They also tend to have more styles and options as they have greater warehousing capacity. The downside to using them is the high double glazing prices and the fact that they might have a minimum job size to increase the cost of your new windows.

A small company might not have the means to stock a large selection of window designs and variety. However, they have no ‘minimum order’ and their double glazing prices are lower. There is also the fact that, since they are a local business, they need to maintain their reputation. If they do poor quality work, the word gets around and they lose business, so you can be sure of good service at a low cost.

Being local also allows you to see their work first hand. You can ask them to tell you where they have worked in your area and get reviews from their previous clients.

how much does double glazing costDo You Need a Cost to Repair or Replace?

While you always have the option of completely replacing a broken or damaged window, sometimes it makes more practical sense to simply repair it. You may like the appearance of your window, and it is performing up to your expectations. There might not be a need to spend a great deal of money in replacing it when you can get it fixed.

You will need to consult an expert in such a situation. A simple survey will tell you if it is possible to repair it, or if you need to replace the whole unit.

You might want to keep your double glazing cost down by getting it repaired. However, if the survey says that repairing it is not viable, you will have to replace it. You may end up paying out twice – once on the short-term repair and again in the long-run. This will drive up your replacement window costs even further.

You also get better value from your property if you maintain the appearance and energy-efficiency. Trying to compromise on the replacement double glazing cost might prove expensive when it is time to pay your energy bills!

What Are the Prices of Double Glazed Doors?

The factors that contribute to your door cost aren’t so different from windows. Your door size, style and glazing will all contribute to the overall cost. Prices can vary significantly when it comes to design and material.

For example, composite doors are a more expensive option while uPVC doors cost less. This is because a composite door is made from a combination of different materials.

It is, therefore, a more complex product and takes longer to manufacture. They are also seen as higher quality and are often chosen for replacement front doors.

Composite doors are attractive and come in a range of colours and styles. Furthermore, you can also accessorise them with options such as knockers, spyholes and door numbers.

Our online double glazing price calculator also includes a multitude of door styles. Why not have a browse through to see the different styles and prices?

It includes many single doors and offers a patio door cost calculator. French door prices and bifold door prices are also available.

Double Glazing Cost Calculator

To get an even more accurate estimate of your double glazing price, you can use our online cost calculator. This free and simple tool allows you to enter your requirements and generate a unique quote for you. You’ll receive an accurate cost in minutes.

What’s more, the link to your quote will be emailed to you so you can refer to it later. This link will also allow you to amend or add to your needs. You can use it to play around and get the configuration you think will suit you best.

While the rates that our double glazing cost calculator gives you are accurate to a high degree, the double glazing prices are subject to a full technical survey from a local trusted supplier. A full technical survey might result in a change in the rates.

What is Included in Your Double Glazing Cost?

With our double glazing cost calculator, you are protected from any hidden costs. What you get is an honest new window price estimate that acts as an accurate guide to your double glazing prices without any unexpected expenses.

The online quote you generate using our double glazing cost calculator will include:

  • A full technical survey
  • The style, size and colour of the product
  • Energy efficiency rating (whether A, B or C WER.)
  • Security features
  • Glass (a choice of standard, toughened or obscured.)
  • Handles
  • External cill
  • The full installation which includes all colour matched trims, fixings, silicones and sealants.
  • Registration with an industry body such as FENSA or Certass and relevant certification.
  • Removal and disposal of your old windows and doors.

Our quotes are wholly inclusive, so there will be no surprises later on. You will know up-front how much your new windows will cost, from the bespoke design to the installation.

Start Your Quote

uPVC Bay Windows cost

Save Money on Your Door and Window Cost

Double glazing costs extra initially but its energy-efficient units can make a huge difference to your annual energy bills. You will find yourself saving more money in your home in the long term.

Studies have shown that even a rating of C can help bring down your yearly energy bills by around £50. A rating of A or A++ might even get you a saving of £75 a year!

That can translate into considerable savings over time. On the other hand, poor quality double glazing costs you more dearly. You will be financially worse off, as well as being much colder in your property.

  • By losing heat rapidly, it ends up making your heating work harder!
  • A good quality double glazing has two layers of glass with a sealed layer of vacuum or argon between them. This acts as insulation, preventing heating from inside the house from escaping.
  • Since the heat remains trapped inside, your heaters don’t have to work as hard to maintain the temperature inside.
  • This helps not only your household budget but also the environment!

Your new windows will be insulated to keep unwanted noise out as well as the heat in.

How Do You Keep Your Double Glazing Price Down?

The cheapest double glazing costs may not be enough to cover your needs. However, you do want to get the most competitive window prices that you can. How do you ensure that the double glazing prices you are paying are the best in the market?

In order to find the best price available to you, you will need to shop around and compare quotes. We recommend you do not settle for the first quote you get. It is always a good idea to get window prices from more than 3 sources, so you can see the average cost of double glazing and find the best price for you.

You may find that a big supplier has the exact design and material that you wanted. They can install your units for you with the strictest quality standards, and you are happy to pay for it.

On the other hand, a small local installer might be willing to go the extra mile for you and keep your double glazing cost to a minimum. He may offer to replace a single window whereas the large company might have a minimum job size.

By shopping around, you will be able to identify the right options to suit your needs perfectly. You might also get a competitive quote by shopping around at the right time. Since December is considered the slowest month for windows installation, you are likely to get a very low double glazing price quote.

Additionally, salesmen often start the sales pitch with a higher double glazing quote. You can get the prices lowered simply by asking for a lower price. The more you negotiate, the better the price you will be able to get for your new windows.

Get started by getting a quick quote with our online double glazing cost calculator!

Who is the Cheapest Double Glazing Company?

As we have discussed, double glazing costs can vary from company to company. If you want cheap double glazing, it is certainly a good idea to shop around and find the best price.

Consequently, make sure you compare quotes from at least 4 companies. This will give you an overview of the average cost of double glazing per window.

This will help you decide on the best home improvement solution for you.

Other information to consider is how long the company has been established. It is also worth reading their reviews.

If you can, it is useful to look at previous and present projects they’ve worked on to help you make your decision.

It is worth finding out if they will offer a bulk purchase discount or if they quote by the single price of a double glazed window.

You may want to choose a national double glazing UK installer or a local one. There are benefits to both, while your choice will affect your new window price.

Therefore, our recommendation is that you get multiple quotes and ask all the questions you need to in order to get your average double glazing cost.

You can then use this information to find the best price.

Get A Free Double Glazing Quote Today

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Frequently Asked Double Glazing Questions

Frequently Asked Double Glazing Questions

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.

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.

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 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.

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.

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.

How much does it cost to double glaze a 3 bed house?

On average a double glazed window will cost between £350 and £400, with a uPVC door typically costing £600. This means that double glazing a 3 bedroom semi can cost between £3500 and £5000.

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.

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.

Why Should I Install Double Glazing in My Property?

Double glazing will add much value to your home and it is seen as a standard requirement in modern homes. Double glazing offers lots of benefits including enhanced insulation, energy efficiency, comfort and security as well as looking fantastic.

If I Use Double Glazing on the Web Who Will Fit My Double Glazing?

Double Glazing on the Web have a fully accredited network of local installers. Once you have created your free online quote we will put you in touch with up to three reputable local suppliers. Each of these suppliers will offer you a free no obligation quote and who you choose is completely up to you.

How Long Does Double Glazing Last?

It is important to note that the argon gas that separates the panes of gas, giving double glazing its energy efficiency will eventually leak out overtime. Double glazing has an average life span of about 20 years, however, this can vary depending on materials used and the installation.

Is Double Glazing Worth It?

Double glazing helps make your home more energy efficient as it prevents the loss of heat. During the summer, it helps to keep the heat out of your home. It provides your home with sound insulation which is perfect for houses that are in busy areas and streets. Double glazing also makes your home safer and more secure.

How much is a triple glazed window?

Triple glazed windows significantly more expensive than their double glazed counterparts. A triple glazed casement window will cost around £110 more than a double glazed window. Triple glazing is appropriate for people replacing single glazing or old double glazing as it will enhance your home’s warmth, security and soundproofing significantly. For those replacing modern double glazing, however, you may find that the benefits are not noticeable enough to justify how much more you are paying.