Replacement Windows UK

If you are looking for replacement windows then Double Glazing On The Web can help. Our free windows cost calculator will provide you with an online guide price, helping you to compare window prices.

We also have a wide network of recommended window companies in the UK. This allows us to put you in touch with a local and accredited installer near you. Compare free, no obligation quotes and secure the best deal for you.

Replacement Windows Cost Calculator

Our replacement windows cost calculator is easy to use and provides you with a guide price within minutes. You can create multiple online quotes for multiple window styles. Simply follow the step by step guide to start your quote.

Replacement Windows

There are many reasons why you might decide to replace your windows. For many homeowners, it’s about eliminating cold spots and improving security. For others, it’s about adding kerb appeal and enhancing their property aesthetics.

replacement windows

Replacement windows are sure to add value, whichever the reason. Update your old windows with new double-glazed windows, and you’re immediately notice the benefits. You could soon well be enjoying a warmer home, smaller energy bills and reduced condensation.

Don’t settle for cold draughts whilst you are lying in bed or watching TV. Investing in energy efficient replacement windows will help prevent cold spots, increasing energy efficiency for a more comfortable home.

Replacement Window Styles

There are many window designs currently on the market, including designs for both contemporary and traditional style homes.

The type of windows you choose will affect the appearance of your home, so it is important that you choose a design that complements your home’s existing aesthetics.

Your replacement windows could either decrease or increase your property value so choose carefully.

Aluminium Windows

Thanks to their modern, slimline look, aluminium windows are ideal for contemporary homes and those wanting a minimalist design.

Strong, sleek and incredibly strong, aluminium is a popular material for modern replacement windows. Their slim frames maximise glazing for enhanced natural light, brightening up homes and adding a contemporary feel.

aluminium windows

These windows are extremely low maintenance as well as being incredibly energy efficient. Built with a ‘thermal break’ to help prevent condensation and improve insulation.

UPVC Windows

UPVC Windows are extremely popular and have become even more sophisticated in recent years. Available in a wide range of colours and finishes, even wood-effects, UPVC windows can be matched to almost any property.

Usually the most cost-effective choice, a UPVC window is good value and very low maintenance.

replacement windows

How Much Do UPVC Windows Cost?

Prices can start around £250 per window depending on the size, style and design.

When taking window quotes, we advise you compare prices in order to get the best deal for you. There are many factors that can contribute to the overall cost so comparing prices is your best chance at securing a good deal.

UPVC window prices will vary company to company, just make sure you check the quality of their services as well as their prices.

Are UPVC Windows Double Glazed?

UPVC windows are double glazed, fitted with two panes of glass. There is usually a space of 12mm to 16mm between these two panes and the glass is airtight, sealed and fitted into the UPVC frame.

Double glazing was designed to enhance insulation by preventing heat transfer. UPVC double glazed windows offer great thermal insulation and are often the window of choice when it comes to replacing single glazed windows.

Do I need Planning Permission For uPVC Windows?

Planning permission isn’t always needed for UPVC windows but if you happen to live in a listed property or Heritage area, then your home might not be covered by Permitted Development Rights.

Window Designs

Achieving the perfect look for your home is easy thanks to a wide choice of window designs. From Sliding Sash Windows to Flush Casement and Tilt and Turn styles, you will be amazed at the range on offer.

Casement Windows

Attached to a frame by one or more hinges and typically hinged at the side, a casement window is the most commonly seen window installed in UK homes.
A popular choice, they are hugely versatile and come in a variety of styles. The most common being the simple side and top hung.

replacement windows

French Casement Windows

French casement windows are another variation of this style. Like French door counterparts, they open wide giving way to wide and unobstructed views. Typically installed in kitchens, these windows are installed for their ease of use.

replacement windows

Sliding Sash Windows

If you are looking to maintain the traditional appearance of your home, then sliding sash windows are the go-to option. Modern sash windows are built with an advanced operating mechanism making them easy to use, with no heavy lifting involved.

replacement windowsGiving you the very best of style and functionality, these replacement windows allow you to maintain a touch of the traditional whilst ensuring your home is warmer, safer and protected against the elements all year round.

Why compromise great looks for functionality when you can have both?

 

Tilt and Turn Windows

Tilt and turn windows never fail to impress. These stylish and contemporary windows provide safe and effective ventilation, without compromising on aesthetics.
These windows can be tilted inwards for safe cleaning as well as giving you the option of a tilt only angle. This dual functionality makes them ideal for high rise accommodations.

replacement windows

Glazing Options

The glass you choose is just as important as the window itself. Your installer will be able to recommend the best glass for your project.
Your double glazing can also include Georgian or Astragal or Leaded bars for a more traditional feel.

Other options include obscure glass, decorative glass, fire-safety glass and solar control glass.

Replacement Windows & Energy Ratings

Window energy ratings allow you to compare the energy efficiency of different windows and glazing.
Energy efficient windows can help reduce heat loss, saving you money in the long term. However, windows that provide a poor level of thermal efficiency will be a source of heat loss.

Window energy rating labels are like those used as energy labels on home appliances. Letter ratings are given to a window based on the energy performance of the whole unit. This includes the frame material, frame design, glass type and other components.

Ratings range from A – C with ‘A’ being the most efficient.

There are many energy rating schemes for windows, the most widely known being the British Fenestration Rating Council, the British Standards Institute and CERTASS.

What Are Standard Window Sizes In The UK?

Here are some standard casement window sizes and prices. Please note that these are simply guide prices. The replacement window cost will depend on the chosen installer.

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

 

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 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 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.

Is Double Glazing Easy to Break?

No, double glazing is not easy to break which means your home will be more secure. When attempting to smash double glazing often what happens is that the first pane of glass and the second will remain intact. This is due to the argon gas working as a shock absorber. This will mean the smash is very loud but unsuccessful on the first attempt.

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 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.

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 Do I Know If My Double Glazing Needs Replaced?

Double glazing will need replaced after a while due to the nature of the design – the gas that separates the two window panes slowly leaks out over time meaning the energy efficiency of your window is compromised. If your double glazing allows cold spots; water to seep through the frame; has cracks or chips in the window or has a build-up of condensation between the two panes of glass (misted windows), you should probably look into getting your double glazing replaced or repaired.

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.

What Can Cause Double Glazing To Crack?

Double glazing can crack for what appears to be no particular reason at all. A sealed window unit faces constant pressure either side of the glass, however, most of the time double glazing is strong enough to deal with this. Winter can be one of the worst time for cracked glass as the difference of temperature on either side of the glass stressing it to the point it can crack.

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.

Is uPVC Flammable?

No, uPVC isn’t flammable and is actually a fire retardant.

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.

How Do I Know If My Double Glazing Needs Repaired?

There are four tell-tale signs that your double glazed windows need repair or replaced: There are chips and cracks in the panes of glass; there is condensation (misted windows) between the two panes of glass; the window allows cold air through; water begins to seep through the frame. If your double glazing does any of these things, you may need to get your double glazing repaired or replaced.

Does Double Glazing Block Sound?

Double Glazing not only provides heat insulation but it also provides sound insulation too. Double glazing is perfect for houses in busy areas and streets.

What Does Double Glazing Do?

Double glazing makes your house more energy efficient, keeping heating in and keeping the cold out during winter months. During summer months, it helps keep the hot air out, keeping your house cooler. It also works to insulate sounds from busy areas and roads, leaving your house more peaceful and quieter.

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.

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.

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.

Replacement Window Prices