With the vast range of window styles and designs available today on the market, it can be overwhelming trying to decide what windows best suit your home. With a quick read through some key benefits of Emerald’s sliding sash window, you will find information that can help make your decision, including step by step cleaning functions and key safety features.

The main thing that sets sash apart from casement windows is its ability to slide open or closed without taking up space in the interior or exterior of the property, as well as their unique cleaning feature. Sliding sash windows are a historic style that preserves the beauty of period homes with their traditional style, whilst still keeping up with modern technology. It’s a clever design that has lasted centuries.


Sliding sash can be modified to meet your particular requirements, with the option of Georgian or astragal bars, arched or shaped heads, run through or add on sash horns and transom drop options. We offer a range of finishes to the frames, including filled woodgrain effects and a huge palette of RAL colours. They can also be installed within a bay (as pictured below).

Safe and secure

Here at Emerald, we understand that home security is a top priority, which is why our sliding sash windows can be made to incorporate a number of safety features, such as secure locking systems and child safety restrictors. The restrictor can be engaged to give ventilation without needing to open your window completely. They are embedded approximately 3/4 of the way up on the bottom sash and simply restrict the sash from sliding past the other to the restricted opening.

Clean with ease

Raise bottom sash upwards approximately 50 millimetres/2 inches, place your hands on the top of the bottom sash, pulling the catches inwards, which releases the sash into the room. The sash will be restrained by restrictors both left and right. Whilst the bottom sash is open, slide the top sash down within a reachable distance and repeat the same process for cleaning. Find the demonstration in the video below:


There’s no doubt that sash windows possess a charm that lack in simple casement window designs. Whether you live in a period property and are keen to retain its traditional character with timber, or a modern home with uPVC in mind, our extensive range of sliding sash windows can be the ideal solution for your window upgrade. We also offer a range of double glazing options including obscure, acoustic, laminated and toughened glass.

Interested in using sliding sash for your window upgrade? Get in touch with the team today on 0800 612 4154 or info@emeraldupvcwindows.com.

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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