Flush Sash Windows

uPVC Flush sash windows are an attractive, low maintenance, secure and thermally efficient timber alternative to traditional sash windows.

uPVC Windows and Doors
Authentic Design

Designed for those wanting to achieve the traditional look of real timber, the flush sash window is flawlessly manufactured. This cutting-edge design marries both style and functionality, giving you a traditional looking yet long lasting, sash window design.

Discreet Hardware

The flush sash window has not unsightly corners or hardware on show. Hardware is concealed, allowing for a more traditional aesthetic. This also gives way to a more slim-line appearance further enhancing the ‘flush-fit.’

Classic Appearance

A uPVC woodgrain affect combined with the traditional design can make the frames look and feel like real timber. If you happen to live in a listed building then these windows are ideal, their classic aesthetics will match any traditional environment.

Slim-line Profile

A super sleek profile lets more light into your home without compromising on security or efficiency, giving you clear views both inwards and outwards.

A Flush Fit

When closed, the sash window sits flush against the window frame, re-creating the look of traditional timber joinery whilst offering all the benefits of a modern uPVC window. This provides a seamless look when matched against your property.

Highly Secure

These windows can be made bespoke to you and come in a wide choice of high security locking mechanisms – another advantage of a uPVC window design. Your chosen double glazing supplier will present you with different locking options ideal for your property.

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Cleaning Window

Easy To Maintain

The flush sash window combines the charming appearance of timber with the thermal and durable properties of the modern uPVC window. The uPVC flush sash window will never rot, warp or require re-painting or varnishing.

Planning Permission

Tailored To You

Flush sash windows are completely bespoke to you. You can choose from a wide range of different glazing options, colours, hardware and locks. Your double glazing supplier will design your flush sash window using your unique specifications.

can you fit windows in the rain


Completely weather resistant, the flush sash window is designed to block out the outside elements and eliminate cold spots and draughts.

Cream Sash window

Attractive Finishes

You can customise your flush sash window with a choice of handles, hinges and finishes. Have an exact look in mind? Your double glazing supplier will do their best to bring that to life and present you with the perfect looking window.

Solar Panels

Energy Efficient

Extremely energy efficient, the uPVC flush sash window is capable of achieving high window energy ratings. Every window supplier will provide their own type of energy efficient glazing. For high energy efficiency, remember to specify for a rating of C+.

Flush Sash Window Handle

Additional Hardware

The Flush sash window can be installed with a choice of additional hardware. You can choose from a range of finishing hardware including different handle designs and glazing.

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uPVC Flush Sash Windows: The Next Generation Of Windows

For a top-end luxury product and home improvement choose the flush sash window. No other window will maintain character and period aesthetics quite like this striking timber replica. These sleek, flush and highly energy-efficient uPVC windows are the perfect replacement for wooden windows. For homeowners looking to get a window that exudes heritage charm, then look no further.

Many homeowners are unable to choose standard uPVC windows due to planning or environmental restrictions. The flush sash window gives a solution in the form of a realistic and traditional looking frame combined with 21st-century benefits. They are the ideal solution for bringing a traditional feel to your home that doesn’t miss out on modern quality. With this in mind, you’ll be able to enjoy the best of both worlds.

To help get things started with enhancing your home with the benefits of uPVC flush sash windows, you can visit our uPVC flush sash window cost calculator. All you’ll have to do is follow the simple, step by step process to get a guide price that has been tailored to your specifications. We can then put you in touch with your nearest installer who will be able to make your home improvement vision a reality!

Highly Authentic Appearance

These windows bear a striking resemblance to timber and can be considered for use in conservation areas. The sash fits flush into the frame giving the window a beautiful, sleek appearance that is also ideal for more modern properties. The expertly sculptured frame is available in a range of authentic wood-grain foil finishes to enhance your timber look, all without causing you to miss out on any of the modern innovations that make them impressive.

The uPVC flush sash window has been inspired by traditional timber joinery, so you can rest assured that they’ll be able to capture the true look of classic design. They can be easily tailored to suit a wide range of properties, so whether you’re looking to bring a heritage charm to a new build or a complementary feature to a traditional home, you’ll be able to find what you need in a quick and simple way. There’s no reason to settle for less for your home.

uPVC flush sash windows

Benefit From Better Technology

uPVC flush sash windows offer the very latest security features and energy efficiency, helping to keep your property secure and draught free whilst maintaining that traditional appearance. These windows are also incredibly hardwearing thank to their uPVC materials, meaning they require very little maintenance to keep them in top shape. In fact, all you will have to do is give them a quick wipe down with a damp cloth to keep them looking at their best.

With this in mind, uPVC flush windows enable you to bring a window design to your home that captures the highest standards of thermal efficiency, security, durability, design, performance, and aesthetic. It’s never been easier for you to bring a beautiful new addition to your home that is going to make it a warmer and more comfortable place to be throughout the year. They are sure to be a worthwhile investment for your home.

Suitable For Every Property

These uPVC windows are minimalist in appearance with beautiful slim, sleek lines. This window style is very popular in use of older, cottage style properties however there is now a trend for these windows in slightly more contemporary properties due to their stylish and simplistic looks. Your installer of choice will be on hand to offer you advice on how to get a uPVC flush sash window to best suit your home.

The installer that we put you in touch with will be able to offer you a flush sash window that is ideal for your home. Whether you live in a traditional, new build, period, or heritage home you’ll be able to get something to suit. Simply visit our flush sash window cost calculator to get your specifications and we’ll help you get leading quality for you home. We make it easy for you to bring leading quality to your home.

Personalise Your Flush Sash Window

Flush sash windows come in many different furniture options including hinges, handles and pegstays. You can choose which colour and finish you think would best suit your property and select the best security option for your home. Your installer of choice will be able to offer you advice on what will best suit your home and your needs. It’s so important to have the freedom to bring a personal touch to your home improvements, so don’t miss out.

If you are looking for a real alternative to timber then uPVC flush sash windows couldn’t offer you anything more. Modern uPVC flush sash windows can be fitted in a beautiful woodgrain foil, which means that they’ll capture the look of timber without any of the maintenance problems that are associated with the material. This means you can enjoy the best of both without having to pay an extortionate amount of money!

uPVC Flush Sash Windows and Thermal Efficiency

We know that feeling warm and comfortable in your property is something that makes it feel like home, which is why it’s fantastic that uPVC flush sash windows are able to achieve an impressive standard of heat retention. This means the warmth from your central heating will stay in your property for a longer period of time. Consequently, you’ll be able to keep the winter winds at bay while enjoying all that uPVC flush sash windows have to offer.

This is made possible through the intelligent combination of a thermally broken frame and integrated weatherseals. Both of these factors work to trap in pockets of warm air to prevent it from escaping your home. In turn, this means that your property will say warmer for a longer period of time and you may find that you rely less frequently on your heating to keep your property at the optimum temperature across the seasons. You can say goodbye to being too cold in the winter!

Not only does this ensure you comfort across the course of the year, it also means that getting the right uPVC flush sash window could save you money in the long run. This is because a lowered reliance on your central heating will help you to lower your annual heating bills, with less energy use also helping to lower your carbon footprint too! With this in mind, these windows are sure to be a worthwhile investment for your property that will continue to bring value after they are installed.

uPVC Flush Sash Windows and High Security

uPVC flush sash windows aren’t just beautiful to look at, they will also work to keep you safer as well. Although inspired by traditional designs, these windows don’t maintain any outdated features that could be used as a potential weak spot to gain entry into your home. With this in mind, you’ll be able to enjoy the aesthetic appeal of flush sash windows while enjoying the peace of mind that comes with a contemporary standard of protection.

This standard is achieved through the combination of premium grade materials, high-performance locking systems, and professional installation. The use of modern materials enables the windows to achieve a standard of structural integrity that gives them impressive security from the ground up. This standard is then enhanced further with high-security, multipoint locking systems that are integrated into the frame to ensure security is kept consistent across the board.

A great indication of how secure your uPVC flush sash windows are is to see if they have Secured by Design (SBD) certification. SBD is a police backed initiative that works to ‘design out crime’ when it comes to home improvements. If you’re investing in flush sash windows that have been approved by SBD then you can rest assured that they’ve undergone a stringent and intensive testing process to ensure they can withstand the best that modern burglary techniques can throw at them.

uPVC Flush Sash Windows

Low Maintenance uPVC Flush Sash Windows

uPVC flush sash windows may be inspired by their original timber counterparts, but this doesn’t mean that they have any of the maintenance problems that come with an outdated design. This means that you won’t have to put up with any of the problems that usually accompany the material, while still enjoying all of the charm that comes with the character of the original flush sash window design. There is no reason to settle for less.

With this standard of low maintenance in place, you won’t have to worry about the windows rotting, warping, cracking, discolouring, bowing, or twisting out of shape when they get or are exposed to the elements. This is important, as not only does this create a range of headaches for you to deal with it also means that your window will cease to function as it is designed to. Consequently, maintenance problems are something that should be taken seriously!

Not only will a rotting or bowing window fail to open and close as it should, it will also serve as a potential weak spot for a would-be intruder to use as a leverage point to gain access to your home. Luckily, this isn’t something that you’ll have to worry about when it comes to uPVC flush sash windows. All you’ll have to do is give them a quick wipe down with a damp cloth to keep them looking as good as the day that they were installed.

uPVC Flush Sash Windows Installation

Getting the right installation for your uPVC flush sash windows is important when it comes to ensuring you enjoy the standard of quality that they are designed to offer. Fortunately, we’ve done all the hard work to ensure you’re in the best place for this to happen. We work with a large network of accredited installers that spans across the nation, so you can rest assured that we’ll have someone near you!

We’ll only put you in touch with installers that are going to offer you the highest standards of professionalism, reliability, efficiency, promptness, and complete respect for your home. There is no reason for your uPVC flush sash window installation to be a stressful or lengthy process. Alongside this, the installers that we work with have proven their competency when it comes to product installations so you can rest assured that they’ll install the window as it should be.

To get things started, visit our uPVC flush sash window cost calculator. From here, all you’ll have to do is follow the step by step process to get a guide price that has been based on your exact specifications. This is a fantastic way to get an accurate idea of what you should be expecting to pay. Once you’ve got this price, we can put you in touch with three of your local accredited installers who will be more than happy to take a look at your specification and confirm a final price.

How Much are uPVC Flush Sash Windows?

Unfortunately, this is not an easy question to answer. This is simply because there so many different factors that can come into play when it comes to defining a final price. This includes the size, finish, installer, and any accessories or additional hardware that you may opt for. Even the colour of your uPVC flush sash window will play a role in changing the price at the end of the process.

There are a few ways that you can keep the prices down when it comes to getting your uPVC flush sash window quote.

One of these is the aforementioned uPVC flush sash window calculator, which is a great way for you to get a competitive guide price from the comfort of your home. Through this step by step process, you’ll be able to determine size, style, accessories, panel count, and more. With this in place, you can see your uPVC flush sash window come to life without having to commit to any purchase.

When considering your uPVC flush sash windows prices, keep these things in mind:

Any design or styling changes, like the colour, size, or accessories, will add to the end flush sash window 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 flush sash windows also plays a huge role in determining uPVC flush sash window prices.

uPVC flush sash windows

uPVC Flush Sash Windows Quote: What’s Included?

Bringing uPVC flush sash windows to your home isn’t a process that is automatically immune to hidden costs, which is why it’s important that you get a price through us. This is because we strive to offer you an honest, transparent, and accurate guide price that has been based on what you have inputted. Through this method, you won’t have to worry about any unpleasant hidden prices that are going to ramp the final cost up.

As this tool takes you through such a comprehensive process, you’ll know that you’ll be ticking every box along the way. To help offer some clarity, 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.

Other Types of Flush Sash Windows

Due to the popularity of flush sash windows over the years, they are available in a range of other materials too. Each one of these materials offers their own unique benefits which we will run through below! If you have any questions on what material will be best for you, simply get in touch with your installer of choice who will be more than happy to help you.


When it comes to flush sash windows, the aluminium variant is the ideal way for you to bring a modern flair to the traditional build. Due to the impressive structural integrity of aluminium, it is able to achieve a slim and sleek frame without missing out on any of the security or performance. In turn, this means that you’ll be able to enjoy a generous glazed area that will let higher amounts of natural light flood into your property to create a bright and spacious feel.


The timber variant of flush sash windows is the ultimate tribute to the original design, featuring the latest features to ensure they capture a modern standard of performance and quality. This is made possible through the application of treated timber that means these windows will avoid any of the maintenance pitfalls that are usually associated with the original design. This one is fantastic option for staying loyal to the original flush sash window design.

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