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Casement windows are one of our most popular window styles, largely due to their excellent functionality. They can be bespoke designed to your exact specifications and will suit any type of building. Our casement windows are available with a wide range of options, and are designed by a team with extensive experience to ensure they pass the test of time. From a classic white finish to an authentic woodgrain effect; our casement windows will improve any home or business.
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Quality Products
Manufactured bespoke to 
High Performance
Ultra thermally efficient 
Contemporary Styling
Modern sash styling for
Colour Range
Standard, premium & RAL
Hardware Range
Comprehensive hardwareAt Techniglaze, we install the Deceuninck 2500 Chamfered and 2800 Decorative profiles. These systems are high performing and aesthetically attractive uPVC casement windows with excellent thermal insulation. They achieve high levels of thermal efficiency, ideal for reducing energy bills, and are suited to both modern and traditional buildings.
In terms of aluminium casement windows, we also manufacture and install the Alitherm series from Smart Architectural Aluminium including Alitherm 300, 500, 600, 700, 800 and Heritage 47. Heritage 47 is ideal for heritage applications where a more traditional look is required and where conservation area regulations apply. Just like uPVC, aluminium is excellent at reducing heat loss due to its tight seal.
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Techniglaze uPVC Casement windows can be finished in a selection of durable yet low-maintenance woodgrain foils. Choose popular White or Anthracite Grey for a modern and understated aesthetic. For a more traditional look, opt for a realistic timber-inspired finish. If you want a different look on the interior and exterior of your new windows, we offer dual-coloured windows for the best in customisation. For our aluminium casement windows, choose from any RAL colour for their weather-resistant powder coat finish. A full list of our colour options for all of our products can be found in our technical documentation. The colour tone shown may differ from the actual finished product, please request a swatch if you require an accurate representation.
White
Cream
Chartwell green
Irish Oak
Golden Oak
Rosewood
Nut Tree
Anthracite Grey
Black Ash
Anthracite Grey
Black
Cream
Dark Grey
Dark Brown
Gloss Off White
Gloss White
Grey
Brown
White
Velour White
Sand
Grey
Sky Blue
Steel Blue
Provence Green
Olive Green
Antique Green
Ocean Blue
Mars Red
Caramel
Cocoa Brown
Vulcan Black
Burford White
Bath Stone
Bourton Cream
Fairford Tile
Wotton Olive
Cotswold Green
Westonbirt Leaf
RAL Colour
Techniglaze casement windows are fitted with high quality Fab & Fix or From the Anvil hardware. From traditionally designed monkey tail handles and stays, to contemporary connoisseur offset handles; there’s sure to be the perfect hardware for any property. Manufactured to the highest standards of quality to ensure durability, you can choose from a range of finishes including polished brass, polished chrome, and classic cast iron to tastefully complement your choice of window – whether you live in a modern home, or somewhere more traditional.
Techniglaze casement windows are glazed with high-performance glass from either Pilkington, Guardian, or Saint Gobain. Each of these companies supplies a wide range of high-standard glass options including energy-efficient glass, self-cleaning glass, anti-condensation glass, and textured and obscure glass. All our glazing, be it double glazing or triple glazing, meets stringent Building Regulations requirements for security, safety, and energy efficiency.
Read our useful casement window blogs:
Inspirational colours for aluminium windows and doors
How realistic are timber effect windows?
Why aluminium is the perfect material for bespoke windows and doors
A casement window is the oldest style of window in the UK and the most popular as the design is so versatile. A casement window is hinged at the side (unless it’s a top hung window) and is usually fitted in single or double panels.
They Provide Excellent Ventilation – The hinged design of the casement allows the window to swing fully open, making high quality casement windows ideal for living spaces that require lots of airflow and natural light. Consider casement windows when choosing replacement windows for moisture-prone areas of your home such as the kitchen or bathroom.
View our latest Commercial and Retail projects and see the high quality of our products and installations and learn more about how we work.
We train our factory and installation teams to the highest standards and have accreditations from FENSA, TrustMark and others to ensure compliance in all our projects.
With over 40 years of trading and a deep knowledge of the industry from fabrication to installation, we are perfectly situated to offer expert advice on your projects.
We are delighted with the windows, and have already been complimented by our neighbours on the upgrade.
Tyler and Paul were very professional and showed good initiative for the inevitable adjustments that needed to be made. They were particularly considerate of our house, it’s character and our pets! Please pass on our thanks and comments as appropriate.
We are delighted with the windows. As you know we were concerned that they would look different and more “clunky” but really you can’t tell the difference except that the new ones are not falling apart!!! The guys who did the fitting were also good. They were working in freezing fog, really cold but they carried on regardless, they were extremely tidy and cleared up after themselves.
I am delighted with the recent installation, it’s good to look out of clear windows. The work was carried out professionally by two excellent gentleman.
I will not hesitate to contact you when I am ready to replace others, also would certainly recommend you to others.
Really impressed with the customer service and professionalism from everyone at Techniglaze. Especially liked the follow up call after our doors were fitted to make sure we were happy. Would definitely recommend.
Excellent. This company really care about doing a great job. Roger and Keith have been very helpful and explaining things in detail that a lay person may not understand.
Excellent customer service, range of products and attention to detail. I honestly can’t rate them highly enough. They stepped in and came to the rescue after Salisbury glass cost us 8 months of time and 100k in increased material costs.
These guys have been great to us. Helped us out at short notice after we were badly let down by another supplier. We asked for several minor details that were not standard (e.g. different locking mechanisms), and they were flexible and open to ideas. We ended up also commissioning our front door from them; it is super sturdy and beautiful. Always courteous, professional, and good payment terms.
First class service for my window repair, with tricky access issues and a large, heavy glazed unit to install. Really glad I chose this company.
I was looking for a company that could deliver a bespoke pair of roof lights in the Alitherm system. Techniglaze offered the best price and worked with us to ensure the sizes were exactly right and conducted the sales process very professionally. The product is first class and we are exceptionally pleased with the service and product. I can highly recommend Techniglaze.
