Casement Windows

Practical, attractive and versatile, home owners love the uPVC casement window. It is one of the most popular window styles on the market and is suited to a multitude of applications.

uPVC Casement Windows
Sleek Appearance

uPVC casement windows feature beautiful slim sightlines for increased light and wonderfully enhanced views. Their super sleek appearance mean they blend seamlessly with any property, complementing existing aesthetics.

Single Lever Latch Design

uPVC casement windows feature a single-lever latch design that allows for a smooth hand operation, making them very easy to open and close. Casement windows can be installed anywhere within the home thanks to this versatile design

Superior Hardware

The uPVC casement window is manufactured with advanced and fully functional hardware. Superior hinges and gaskets provide a strong, long lasting performance and weather protection. Additional upgrades may be offered by your chosen double glazing supplier.

Effective Ventilation

Let in lots of fresh air and sunlight with the uPVC casement window. Casement windows are designed to open all the way outward and unlike double-hung windows which are closed on top, casement windows open wide providing lots natural ventilation and light.

High Security Locks

Each uPVC casement window supplied by our network of trusted double glazing installers comes exceptional levels of security. Your casement window will come with fully fitted, high security locks for your complete peace of mind.

Traditional & Contemporary Looks

uPVC casement windows can be specified in a wide choice of colours including standard white finishes and authentic woodgrains for the more traditional property. Any look is achievable, allowing you to match window to home.

Related Products

uPVC Sash Windows

Sash Windows

Sash Windows There are many heritage properties in the UK that still…

uPVC Sash Windows

Flush Sash Windows

uPVC Flush Sash Windows: The Next Generation Of Windows For a top-end…

uPVC Tilt and Turn Windows

Tilt and Turn Windows

Why Choose uPVC Tilt and Turn Windows? If you are after a…

uPVC windows and doors

French Casement Windows

Why Choose French Casement Windows? Open up your property with classic French…

Bifold Windows

Bifold Windows

What Are Bifold Windows? Bifold windows fold back upon opening in a…

uPVC windows and doors

Bay Windows

What Are uPVC Bay Windows? uPVC bay windows give you a unique…

Gated uPVC Bow Windows

Bow Windows

Why Choose Bow Windows? Bow windows are a variation of uPVC bay…

uPVC Supply Only Windows

Supply Only Windows

uPVC Windows Supply Only Our double glazing suppliers will provide you with…

Casement Windows

Triple Glazed Windows

Triple glazed windows offer superb energy efficiency, security and noise insulation. Find out more about triple glazed windows.


Cleaning Window

Low Maintenance

uPVC casement windows are extremely low maintenance. They will never rot, warp or rust and will never require re-painting. Newer models even allow you to remove the sashes from the frame so you can clean your windows safely.

Solar Panels

Energy Efficient

Double glazed casement windows create an air tight seal upon closing, preventing cold spots and draughts. uPVC casement windows offer increased thermal insulation, allowing for a more comfortable home.

Window in Kitchen

Ideal For Kitchens

An orangery is built to be a seamless extension of your home and be designed to match your existing brickwork, providing extra living space as well as lots of light.

Wood Effect uPVC Casement Windows

Wide Range of Designs

uPVC casement windows come in a wide choice of attractive designs. Some of their design features include: French, flat, top, pushout and top down grille. Each window design can be tailored to your requirements which includes size and colour.

Window Handle

Easy To Use

The uPVC casement window is very easy to use thanks to their single-lever design. A single-lever latch means these windows are easily accessible to the user and with just a swift hand action, they can be opened and closed in an instant.

Open uPVC Casement Windows


The casement window has been designed with a sash pivot which allows the window to open wide. This gives you an expansive opening which gives effective ventilation but also doubles up as an emergency exit.

Start Your Quote

Step 1 of 5

What type of windows would you like?(Required)

More Info

Why Choose uPVC Casement Windows?

Practical, attractive and versatile, the uPVC casement window is one of the most popular window styles on the market. It doesn’t matter whether you are a veteran property developer or a first-time buyer, installing affordable casement uPVC windows in your home makes sense financially as well aesthetically.

They have proven themselves to be a timeless addition to any home, increasing notably in popularity since their introduction into the market. With this in mind, they are an easy option for homeowners looking to bring an understated aesthetic to their home that makes the most of modern innovations.

What Is A Casement Window?

A casement is simply a window which is attached to a frame by one or more hinges. Casement windows are mostly hinged at the side with windows which are hinged from the top called ‘awning’ windows. They offer an instantly recognisable aesthetic that is easily tailored to suit a wide range of property styles.

uPVC Casement Window Design

The smart simplicity of the casement window makes it hugely versatile, particularly when coupled with a contemporary property. The crisp, clean uPVC profiling allows for a stylish finish that catches the eye.

The appearance of the outside of your property speaks volumes and new uPVC casement windows will bring an instant fresh look and lease of life into your home, making your home’s exterior look just as good as the interior. uPVC casement windows suit any room, ideal for a kitchen, bedroom, or as a bathroom window replacement!

Casement Windows

Casement Window Styles

There are many uPVC casement window styles on the market today, with each design offering a unique look and feel. This means that they can be easily tailored to suit modern, traditional, period, heritage, or new build homes alike.

The most common type of casement windows in the Uk> is simple side and top hung, with more bespoke designs incorporating fixed lights and window sashes. Speaking to your installer of choice is a great way to see what they can offer you in this region.

Panels are usually added to seal off various sections of the window and the colour of these panels can be completely bespoke to you with a wide selection of colours and finishes available. This means that casement windows can achieve a real personal touch.

There are various casement window styles that also incorporate Georgian bars, leaded bars or Astragal Bars to complement traditional properties. With such a range of customisation options available, you’re sure to find a casement window design to suit you.

Browse Through Casement Window Styles

Browse through a wide range of casement window designs with Double Glazing On The Web. We have an extensive selection of window styles, allowing you to get a unique price online! Don’t forget to watch our video on how to measure your windows. Alternatively, you can read a guide here.

Taking the time to browse through casement window designs will ensure you’ll be making a researched choice. In turn, this means that you’ll be able to enjoy the confidence that comes with the right choice. You can visit our casement windows cost calculator to bring your window to life, while also receiving a competitive guide price.

Glazing Casement Windows

When it comes to glazing casement windows, you have a choice of various glazing stiles, ironmongery and uPVC profile finishes to help you achieve your ideal look for your home. Gone are the days where a single, simple glazed window was the only option that you could choose to enhance your property.

Nowadays, casement windows are available in a wide choice of glazing options: as well as triple or double-glazed variants. Alongside this, you can also opt for thermal glazing, toughened safety glass, decorative options, and bespoke designs.

Single-Handed Operation

Double glazed casement windows are a fantastic alternative to traditional double-hung windows. Their innovative design features a single-lever latch for easy operation, making them a breeze to open and close. This is why they are most commonly installed behind kitchen sinks, their single-handed latch allows them to swing open and freely which makes them ideal for hard to reach places.

Modern casement windows have also been refined over the years to ensure the mechanisms offset the weight of the sash. When this is combined with their single-handed operation, they are able to open smoothly and easily every time. This is important for more than just practical benefits, as effective operation reduces the wear and tear on the window to promote lifespan. You can rest assured that they’ll be a worthwhile investment for your property.

Casement Window Security

If choosing a timber casement window then you need to ensure it locks securely into the frame. Try to avoid locks which are screwed into the window rather than to the frame as they are generally a weaker system. Window locks which are fixed into the frame are much more secure and can’t be used as a leverage point for any would-be intruders.

uPVC casement windows usually offer more options when it comes to security, with a choice of high-security locking mechanisms. A great rule of thumb is to check if your casement window has achieved any security accreditations such as meeting British Standards or Secured By Design awarded.

Your uPVC casement window should ideally feature locks within the framework as well as the handle to ensure maximum security. Many modern casement windows are manufactured using premium-grade materials to ensure they achieve an impressive degree of structural integrity, which is then enhanced by multi-point locking systems.

uPVC Casement Windows

Replacement Casement Windows

Replacement casement windows can come in a wide range of sizes and styles to maintain the appearance of your property. If your old casement windows are old and worn then uPVC casement windows are the best option for durability, energy efficiency and style. Simply speak to your installer of choice to see what they can offer you, they’ll also be on hand to offer you any advice on how to get the best window for your home.

Casement Windows and Thermal Efficiency

Bringing a modern casement window to your home isn’t something that will just complement the aesthetic of the home, it’s also something that will help to enhance the comfort of the property too. This is because contemporary designs combine a thermally broken frame with high-performance weatherseals to help increase the overall heat retention of the property.

With these windows in place, the warmth from your central will stay within the home for a longer period of time. Not only does this ensure that that the winter winds are kept at bay during those colder winter months, but it also means that bringing a casement window to your home could end up saving you money in the long run!

With the warmth from your central heating staying in your property for a longer period of time, you could find that you rely on it less frequently to keep your home at the optimum temperature. Consequently, this could result in a lower annual heating bill. Alongside this, lowering your energy use could also result in a reduced carbon footprint too.

The thermal efficiency properties of a casement window are measured through the Windows Energy Rating (WER) scale, which is a great way for you to determine how effective your new window is going to be at keeping the elements out. This runs on a simple to understand ‘A-G’ scale, with ‘A’ being the highest specification on the chart.

Low Maintenance Casement Windows

Modern casement windows are able to outclass their older designs through the fact that they are able to offer you exceptional standards of quality without any of the chores. Many outdated window designs would often require extensive upkeep to ensure they are looking and performing as good as the day that they were installed.

However, modern materials ensure that this is no longer the case. You won’t have to worry about the window rotting, warping, cracking, discolouring, or bowing out of shape when the window gets wet or is exposed to the elements for a long period of time. All you will have to do is give them a quick wipe down with a damp cloth to keep them looking as good as new.

Not only does this reduce any maintenance headaches, but it also makes the modern casement window a fantastic investment to your home. This is because bowing or twisting out of shape can notably decrease the structural integrity of the window design. In turn, this means that it could reveal weak spots that can be used as a point of entry for a would-be intruder.

Casement Windows Colours

Having the freedom to customise your casement windows is one thing that is going to make them a seamless new addition to your property. With this in mind, colour choice is going to play an important role in determining how the final casement window aesthetic is going to turn out. Rest assured that installers know this, which is why they always offer you a comprehensive selection to choose from.

Depending on the material of the casement window you choose, the colour spectrum of choice is going to differ slightly. However, whether you go for a uPVC casement or aluminium casement windows you’ll still be able to choose from a wide range of standard and specialist colours. You can also choose from woodgrain foils, which enable you to capture the look of timber without having to worry about any of the maintenance setbacks the material holds.

Casement Windows

Types of Casement Windows Materials

There are three distinct casement windows materials for you to choose from, each one offering their own charms and benefits. These options include aluminium casement windows, uPVC casement windows, and timber casement windows. Your budget, tastes, and existing property architecture are all going to play an important role when it comes to choosing the right casement window design for you.

To help you make a choice, we’ll run through the differences below. We recommend taking your time to familiarise yourself with each option before you make a choice. You can also speak to your installer of choice to see what options they have available for you to choose from! See below for the list:

uPVC Casement Windows

uPVC casement windows have proven themselves to be a popular option amongst homeowners, especially as they bring harmony between cost-effectiveness and modern standards of performance. They are a low maintenance option that achieves high standards of performance and longevity. They are characterised by their distinct white profile look, available in a wide range of colours and hardware options to ensure they can be tailored to suit any style of home. Speak to your installer of choice to see what they can offer you.

Aluminium Casement Windows

Aluminium casement windows are a modern window option that stands at the frontier of window design, bringing the best in performance with a sleek and slim frame. They don’t require the bulk of other materials to achieve structural integrity and security, which means that you’ll be able to enjoy a larger amount of glazing without having to miss out on peace of mind. Alongside this, they are also the most versatile window design on the market: boasting the largest amount of colour and style options. It’s never been easier to bring cutting-edge quality to your home.

Timber Casement Windows

Timber casement windows make the most of the quintessential window design, drawing upon classic charm to capture a heritage appeal for any home. However, don’t be fooled into thinking that timber windows are outdated. Many modern timber casement windows have been refined through modern innovations, including treated timber that prevents them from having any of the maintenance problems that are usually associated with the material. These windows enable you to enjoy the best of the old and new, bringing something special to your home.

How Much are Casement Windows?

As a general overview, casement windows are going to cost you around £150 – £450. However, this isn’t the be-all and end-all of prices. This is because this is simply a guide price, which is subject to change due to a selection of factors. This includes the size, style, colour, and hardware options that you go for. Your installer of choice will be able to use the guide price we provide you as the foundation for the final price that they’ll offer you.

So, you may now be wondering how to get the best cost when it comes to casement windows? One way is to install uPVC casement windows supply only. However, this means you’ll have to install them yourself, which can be risky. We recommend you always work with a professional installer to fit your new casement windows.

We know that you want to bring casement windows to your home in a quick and easy way, which isn’t an unreasonable request. With this in mind, you can visit our casement windows cost calculator to get a free, instant, and highly competitive guide price. All you have to do is follow the free, easy, and simple to follow step by step process.

This tool is a fantastic way for you to explore the full scope of casement window designs, all from the comfort of your home. This is because each step will take you through each part of the window specification, including size, style, accessories, panel count, and more. Not only does this enable you to see your window to come to life, it also means that you’ll be able to get a guide price that covers all bases.

When considering your casement windows prices, keep these things in mind:

Any design or styling changes, like the colour, size, or accessories, will add to the end casement windows cost.

Do you want a decorative glass or a sidelight?

Do you want additional thermal efficiency features?

Do you want to include additional security features?

Be prepared to pay extra for those!

Just like other home improvements, the size of casement windows also plays a huge role in determining casement windows prices.

Casement Windows

Casement Windows Quote: What’s Included?

Avoiding hidden costs is something that you need to keep in mind, even when you’re browsing for your ideal casement window design. This is where we come in. We can help you get an honest, transparent, and accurate guide price that is based on your exact specifications. This way, you won’t have to worry about any unpleasant surprises.

The way we do this is through our casement windows cost calculator. As mentioned, this tool will take you through the casement window design step by step, which means that there won’t be any aspect of the casement window design that will be able to sneak up on you. This tool can also be used on your mobile so you can use it with your installer there to create the window together!

The guide price you receive 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.)


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.

Casement Window Prices

The cost of casement windows will vary between double glazing installers and ultimately depend on the size, material, glazing and security. You can get an average cost of casement windows online using our double glazing prices calculator. Click here to start your free online casement window quote.

uPVC Casement Window Prices (Fixed Window)

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

uPVC Casement Window Prices (1 Opener)

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

UK Wide Trusted Installer Network