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98% - 87 Reviews
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4.9 - 462 Reviews
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Newest innovation in our range of composite door styles —the SleekSkin finish!
A low maintenance addition to any window
Transform your home with new windows, doors, shutters or a conservatory - pay nothing until 2026.
With timber effect woodgrains available, you can fully recreate authentic timber windows without the hassle.
Add Georgian bars to add an authentic feel. Our flush sash windows come in a wide range of colours to suit everyone’s tastes, from heritage woodgrain foils to bright reds and blues. Make your new windows your own.
An attractive style that suits traditional and modern homes alike
A++ energy rating available and exceptionally low U-values for incredible energy efficiency
Our uPVC flush sash windows are low maintenance and just require a simple clean to keep them looking good
All our windows come with highly secure locking mechanisms for your peace of mind
An extensive range of colours to brighten up your home
We offer a wide variety of hardware to complement your windows
Colour Options
Our uPVC, aluminium & timber products are available in a wide range of colours. Enquire now and remember to request a colour swatch.
Contact usAnthracite
Rosewood
White
Sage
Pyrite
Pepper Oak
Painswick
Noir
No10 Black
No.38 Grey
Honey Oak
Greyish
Ginger Oak
English Oak
Cotswold Green
Cotswold Biscuit
Corse Lawn
Clotted Cream
Clay
Bronze
Anodised
Glass Options
Available in 21 intricate designs, our decorative glass combines smart configurations with intricate, fine attention to detail.
Get a QuoteEverglade Glass
Warwick Glass
Taffeta Glass
Stippolyte Glass
Pelerine Glass
Oak Glass
Minster Glass
Mayflower Glass
Florielle Glass
Digital Glass
Cotswold Glass
Contora Glass
Charcoal Sticks Glass
Chantilly Glass
Autumn Glass
Arctic Glass
Sycamore Glass
Reeded Glass
Cassini Glass
Tribal Glass
Flemish Glass
Flush sash windows, also known as flush casement windows, feature sashes that close flush with the outer frame, creating a sleek and uniform appearance. This minimalist style, inspired by Scandinavian design, offers a modern alternative to standard casement windows commonly found in British homes. On the inside, they resemble traditional side-opening casement windows, making them a perfect blend of functionality and aesthetics.
Emerald Windows supplies and installs flush sash windows across Swindon, Wiltshire, and surrounding areas. These windows come with customisable options to match your property’s character, whether it’s a modern build in Oxfordshire or a heritage home in Somerset.
Contact usFlush sash windows replicate the traditional look of timber casement windows while offering the modern benefits of uPVC. With advanced thermal performance, they help eliminate cold spots and draughts commonly found in older, single-glazed timber windows. Their resemblance to timber, especially with a wood effect finish, makes them an ideal replacement for properties with outdated wooden frames.
These windows are particularly suited to homes with wooden frames that are no longer repairable or for homeowners looking to reduce the upkeep associated with timber. If you're tired of maintenance or want to upgrade to a more energy-efficient option, uPVC flush sash windows are a smart choice.
Flush sash windows offer a sleek and traditional look, blending modern performance with classic timber aesthetics. To maximise their functionality and style, consider adding bespoke shutters. Designed to fit perfectly with your flush sash windows, shutters provide improved privacy, light control, and an added layer of insulation for your home.
Whether you’re in Swindon, Wiltshire, or beyond, our range of shutters can be tailored to match your home’s design. Choose from various materials and finishes to create a cohesive look that complements your flush sash windows beautifully. Visit Emerald Shutters to learn more about enhancing your windows with this practical and stylish addition.
Learn More about our ShuttersWhether you're looking for authentic oak flush sash windows or contemporary grey flush sash uPVC windows, we offer a variety of customisation choices, colours and decorative finishes. We can cater to even the most niche requests to ensure that you get the perfect replacement uPVC windows that add kerb appeal to your home. The beauty of uPVC is that it is incredibly versatile, so the design choices are endless.
Our collection of uPVC flush sash windows offers you the choice to never compromise on style or efficiency. With the modern energy efficiency of uPVC and the high-quality look of timber, our high-performance sash windows will never let you down. Get in touch to discuss our wide selection of flush sash windows.
Contact usWelcome to our FAQ section dedicated to flush sash windows. Here, you'll find answers to some commonly asked questions about flush sash windows. If you have any other specific questions or require further assistance, please feel free to reach out to our customer support team. We're here to help!
Flush sash windows are a type of window design where the sash sits flush with the frame, providing a sleek and seamless appearance. They offer a modern and stylish look to any home.
Flush sash windows offer several benefits, including:
Yes, flush sash windows can be customized to suit individual preferences. They are available in a range of colours, finishes, and hardware options. You can choose the style, size, and configuration that best matches your home's architectural design and personal taste.
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.
See All ReviewsEmerald 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...
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...
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...
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...
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...
If you would like to visit our showroom or would like us to visit you at your home, follow the link to complete a quick form. We will be in touch to arrange a time, date and location that suits you.
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We supply the leading brands of composite doors, each of which has their own distinctive styles and furniture options to choose from. Follow the link to build your own custom door and get a quote.
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Why not read through some of our informative blogs, written in the aim of answering frequently asked questions on all things home improvement related.
See all newsMay 13, 2025
When it comes to upgrading or replacing windows, homeowners across Britain are increasingly choosing casement windows, and it’s not hard to see why. The casement style is the most popular in the UK. Why? Because casement windows offer a winning...
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May 10, 2025
If you’re thinking about updating your window coverings, shutters might not be the first thing that comes to mind. If you’ve always been a ‘curtains’ type of person, you might be reluctant to try anything else. But once you’ve seen...
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April 16, 2025
Combining the strength of a solid timber core with the durability of a glass-reinforced plastic (GRP) skin and the insulating properties of foam, composite doors deliver exceptional performance. Their energy efficiency, enhanced security and resistance to weather make them a...
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