Stunning uPVC Sash Windows

At London Sash Windows, our focus is on quality. We install stunning uPVC sash windows to homes across South West London, including Fulham, Southfields, Putney, Wandsworth, Balham, Clapham, Wimbledon and Morden. Our range can be tailored to suit your exact requirements and our customer services team can guide you through your choices.

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Innovative and Incredible Sliding Sash Windows in Sutton

Our range of uPVC Sliding Sash Windows in Sutton and South West London features a market-leading design. They come with the most innovative engineering, using cutting-edge materials and manufacturing. There is no compromise on aesthetics, as these incredible double glazed sliding sash windows provide customisable, stylish and appealing aesthetics to your home.

Our premium Sutton’s sliding sash windows come with a range of features and benefits, as well as tailored design options, to ensure that you have the perfect sash windows to suit your home and your tastes. Whatever style or design you are looking for, our double glazed sash windows are sure to meet your needs. View our gallery for further inspiration.

For more information on our sash windows covering London, including Sutton, Fulham, Southfields, Putney, Wandsworth, Balham, Clapham, Wimbledon and Morden, get in touch with our team today to learn more. 

Sliding sash window, London

uPVC Replacement Sash Windows in London

Sliding Sash Windows in Sutton: Outstanding Features & Benefits

Our sash window styles come with outstanding features and performance benefits that will only enhance your property when installing these double glazed windows. They are fitted with spiral balances, which counteract the weight of the sliding sash for smooth and effortless operation. Unlike traditional sliding sash windows, your sash will not get caught up in a pulley system, making for stiff movement.

Our sutton’s sliding sash windows incorporate concealed gaskets. These low-level PCE gaskets provide protection from the elements whilst remaining out of view, giving you a clean and crisp aesthetic. You will feel the benefit of these gaskets without them being unsightly. Whether young children are living in your home or just visiting, our double glazed sash windows can be fitted with restrictors to stop the bottom sash from sliding fully, keeping children safe.

We know that environmental sustainability is a current concern for everyone, which is why we offer double glazed windows in Sutton, South West London, Putney and other surrounding areas that are totally lead free and 100% recyclable, thereby reducing environmental damage and meeting EU and UK legislation ahead of time.


Replica Hardware


You can tailor your double glazed sash windows in Sutton with replica hardware, such as our optional decorative sash horns. These sash horns add period allure to your windows, reflecting the traditional styles from the 19th century. We offer a range of hardware options so that you can truly emulate the period features of classical sash windows, giving your new double glazed sash windows an element of charm and authenticity.

Extensive Colour Options for Sutton’s Sliding Sash Windows

We know that maintaining the natural look of your home is important, and the colour of your windows needs to reflect your tastes and your property’s architecture. This is why we offer a range of colour options, from reds to greens to white for Sliding Sash Windows for your Sutton home. If you are after a more traditional look, our selection of woodgrain finishes means that you can have all the benefits of uPVC with the appearance of wood. These woodgrain foils authentically emulate classical wooden sash windows to such an extent that it would be hard to tell the difference. As a result, we can install our premium sliding sash windows in all properties in Sutton, Putney, Wandsworth and other South West London unique and individual homes.

cream sash windows sutton londonchartwell green sash windows sutton londonirish oak sash windows sutton londoncherrywood sash windows sutton londongrey sash windows sutton london
smooth white sash windows sutton londonblack sash windows sutton londongolden oak sash windows sutton londonwhite sash windows sutton london

Functional Tilt Function

To further enhance the function of our London uPVC sash windows, a built in pivot bar enables sashes to tilt inwards for cleaning or extra ventilation. This feature is so simple to use, all it takes is a push of a button. You will wonder how you managed without this innovative design on your previous windows.


Minimal Maintenance

With wooden sash windows, there was a need to sand and paint the wood on a regular basis; however, with our uPVC sash windows, there is little maintenance involved. Designed never to warp, rot or fade, there is minimal effort needed to ensure these windows look pristine and polished year after year. They really do offer a minimal maintenance alternative to traditional sash windows in London and Sutton. 

tilt sash windows sutton london

Extreme Energy Efficiency


Our Sutton sliding sash windows come with an innovative six chambered profile as standard. This enables them to achieve the highest possible BFRC Window Energy Ratings in the industry. You will find that your energy bills are lowered and your home is kept warm with these double glazed sash windows. They also come Energy Saving Trust Recommended, giving you extra assurance of their energy efficiency.

Sliding Sash Window Energy Ratings

Replacement Sash Window Energy Efficiency London

High Security

Your home’s security is a vital concern when choosing new uPVC sash windows; we understand this, so our sliding sash windows in Sutton and across South West London come with the highest security standards. These windows offer outstanding security performance and are available with high-security cam locks. Our windows meet the PAS24:2012 standards from BSI, ensuring unbeatable security. When choosing our double glazed sash windows, you can be confident that you and your home are protected and safe. Homeowners in urban cities in and around London, Sutton, Wandsworth, Balham and other South West London can have complete peace of mind.

Sliding sash windows hardware

London Sash Window Lock

10 Year Guarantee


Quality and performance are paramount considerations when choosing your new sliding sash windows. We ensure our London uPVC sash windows meet the very highest standards. Every window undergoes a rigorous hand finishing procedure by a skilled operative to ensure quality.

To give you confidence that our windows will last the test of time, we offer a 10 year manufacturer’s guarantee. It will give you peace of mind that your windows are going to perform year after year without compromise.

Prices of uPVC Sliding Sash Windows in Sutton, London

Very often, the cost is a reflection of quality. However, our uPVC sash windows are competitively priced. Because we are specialists in these double glazed windows, we can offer better prices than our more generalised competitors.

You can see how much your Sutton sash windows will cost using our online quote calculator. It’s easy to use, just enter your details and choices and the calculator will provide you with a tailored quote. It’s free to use and there’s absolutely no obligation.

By using our sash windows cost calculator, you will be able to start planning for your new uPVC sash windows in London. We allow you to let us know your measurements, as well as pick through an assortment of colours, decorative glazing and handle options.

If you want to hear more about the additions of which you can add to your uPVC sash window with Alaskan Sash, visit our sash windows London price guide. We provide you with a list of options that we offer, including sash box removal and the addition of run-through horns and astragal bars.

Alternatively, you can contact us and speak to one of our uPVC sash window experts for more information, and to book an appointment.

Frequently Asked Questions About Sliding Sash Windows in Sutton & London

Is uPVC More Expensive Than Other Materials?

uPVC sash windows are more affordable than traditional timber or wooden sash windows. They are low maintenance and affordable replacements for homeowners looking to replace the old classic design. Not only is the price better, but they also offer a longer lifespan.

Can Sash Windows be Double Glazed?

Modern sash windows can be double glazed, but if you are in a listed building or conservation area where you are not allowed to replace your sash windows with double glazing, you can look at applying secondary glazing to your London property.

Are Sash Windows Energy Efficient?

Sash windows are energy efficient. The sliding sash windows feature a six chambered profile. The unique design will trap warm pockets of air and retaining heat for longer. This enables the windows to achieve an impressive BFRC Window Energy Rating.

Should I Repair or Replace Sash Windows?

You can repair sash windows but you should replace them. You may notice that over time, you’ll spend more money on repairing the window, making it a less cost effective option. Replacing an entire window will be the most cost effective solution, as our sash windows have been carefully crafted to stand the test of time and are competitively priced. The modern design will not rot, warp, fade or crack, meaning you can enjoy your new windows for years, without the need to repair or replace them.

What Furniture Options are Available with uPVC Sash Windows?

Sash window furniture available for modern sash windows includes astragal bars, run-through horns, ogee architraves, pole eyes, scroll lifts, travel restrictors, locks and tilt knobs.

What Locks Do You Use to Secure Sash Windows?

Our sash windows are fitted with key-lockable twist locks as standard. They are key lockable for insurance purposes and provide enhanced security.

Why Choose uPVC Sash Windows?

uPVC sash windows are the superior choice over timber sash windows if you are looking for a low maintenance and long lasting window. They offer characteristic appearances that will add traditional charm to any property and an impressive range of performance benefits such as improved security, durability, insulation, and weatherproofing.

Are uPVC Sash Windows Recyclable?

Our uPVC sliding sash windows are recyclable and can be broken down in the future and reconstitute the PVC. With our sash windows you’ll help to reduce environmental damage and waste.