Our uPVC sliding sash windows have received another upgrade! If you’re looking for sliding sash windows that can maintain the traditional sash window appearance for your home, then look no further than our authentic range.

Authentic uPVC Sash Windows

The new slim mid-rail is one of many classic characteristics that these sliding sash windows can feature to make them the perfect replacement for traditional timber windows. They can bridge the gap between contemporary efficiency, security, low maintenance and heritage aesthetics thanks to their classic design, thanks to their classic design.

As the latest innovation in uPVC sliding sash manufacturing, this new midrail is more than 10mm slimmer than its standard counterpart, to match the frame proportions found on traditional Victorian windows. The new 37mm midrail allows the sharp-eyed homeowner even more control over their property appearance. Another benefit to a sleeker midrail is that it allows for a slightly larger glazing area, leading to better sightlines with enhanced views of the outdoors and greater natural light infusion.

Beyond the slim midrail, our sliding sash windows can come in Edwardian, Victorian, and Georgian styles to best fit any period property. To further enhance the traditional look, choose one of our many woodgrains, such as grained white to mimic white timber or agate grey for a contemporary touch. The available accessories, including run-through horns, sash horns, deep bottom rail, astragal bars, and the ovolo-shaped weather bar are all accessories that further add to the aesthetic, making it virtually impossible to tell our sash windows apart from real timber.

Sash Windows for Conservation Areas

In conservation areas, maintaining the historical aesthetic of buildings is paramount. Sash windows are often considered characteristic features of buildings within these areas, and their design is subject to strict regulations to preserve the historic character. Many buildings in conservation areas were constructed during specific periods when a slim midrail was a common feature of the sash window style. A slim midrail may, therefore, be requested by the conservation officer, and adhering to such conditions is essential for obtaining planning permission.

Why uPVC Windows?

Upgrading to new sash windows in uPVC over older timber units can offer a whole host of benefits. First and foremost, these top sash windows come with energy efficient double glazing filled with argon gas, which allows for excellent thermal performance.

uPVC is a robust material that can withstand harsh weather conditions and consistent use without splintering or cracking, making it ideal for long lasting windows that pass the test of time. Unlike their timber counterparts, which can require consistent maintenance to keep clean and fresh looking, these alternatives only need an occasional cleaning with simple solutions and a clean cloth. Get all the impactful styles and colours, whether you’d like Victorian sash windows, Georgian sash windows, or any other of our timeless options with none of the hassle.

Upgrade Your Home with Emerald Windows and Doors

Want to learn more about our authentic-looking window options? Contact our team today for a quote, and we’ll be happy to help. Based in Swindon, we cover surrounding areas, including Oxford, Bristol, and Reading, with a professional and reliable service.

As well as a wide range of sash windows, as installers we also provide other new windows such as casements, tilt & turn, and heritage styles, all constructed using the finest quality materials and timeless designs. We’re also confident we have the right door for you, with our offerings including the popular bifolds and French doors.

Read next:

What are Sash Windows? History, Benefits, and Modern Adaptations.

Discover the Timeless Charm of Interior Shutters for your Home.

New uPVC Windows Transform Swindon Home’s Energy Efficiency.

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Areas we serve

Swindon-based family run double glazing installers

With a head office in Swindon, a short trip from the motorway, we are ideally located to offer our services across Wiltshire, Reading, Bath, Bristol, Marlborough, Berkshire, Gloucestershire, Oxfordshire, and other surrounding locations.

Emerald provide and install home improvements in all materials – uPVC, aluminium and traditional timber. No matter what material you choose, you can be sure we’ll provide you consistent quality – our work is always finished to the highest standards, whether you’re installing 2 windows or 20!

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What our customers are saying

We pride ourselves on the hundreds of customer reviews that we have collected over our many years of trading. Why not read some of our testimonials yourself, and see how our customers have rated their experience with our service.

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Replacing patio door with a window

Emerald windows were brilliant. The patio door was removed and replaced with a window. All work was carried out from bricking up the outside to plastering the inside. Great work...

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Lesley B

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Local Family Friendly Company

We worried about choosing a window company. We looked at all the usual national firms but we preferred the feel of a smaller local family run business as the rep...

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Stephanie C

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Very Pleased

Very pleased with the whole process from Mark letting us see and touch the product in the showroom in Swindon (many don't!), to a transparent price breakdown, no "buy now...

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Casey Collins

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Highly Recommended

Highly recommend Emerald Windows and Doors; new Front and back doors fitted yesterday. Cannot praise Mark the Fitter enough, courteous, friendly and very helpful. Top job with attention to detail...

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Michelle Webb

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Emerald Windows – A Quality Product

Emerald windows have just installed a new composite front door to our property. We are very pleased with the product and the installers were polite, professional and have carried out...

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Richard K

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