10 Year Guarantee
Available on all products
Energy Saving Products
A+ rated window & doors
Competitive Prices
Value for money
Qualified Team
Strict industry standards
Top benefits of our uPVC Casement Windows
Energy efficient casement windows to reduce your energy bills
With advancements in modern technology, uPVC casement windows can improve the energy efficiency of your Buckinghamshire home, preventing warm air from escaping and cold air from coming in. When combined with double glazing this could reduce your energy bills by £110 per year!
All our windows can be fully customised to suit your needs with a varied collection of window shapes, colours and finishes to choose from.
Versatile windows available in a wide range of configurations
Casement windows are an excellent addition for any property looking to enhance the property’s unique character. Sleek, timeless and modern, these windows are sure to revitalise the appearance of your property.
In addition to this, casement windows typically open outwards and side hung but they are not limited to just this and are available in a variety of configurations so you can be confident they tailor to the style your trying to achieve.
Affordable and durable windows that don’t compromise on quality
uPVC casement windows are a cost effective solution for homeowners in Buckinghamshire looking to update their outdated windows but this does not mean they are any less efficient than say aluminium windows.
Modern advancements allow uPVC windows to last anywhere between 20-35 years making them a hardy choice whilst retaining some of the best energy ratings on the market!
uPVC casement windows suit all properties in Buckinghamshire
Typically opening outwards from side-positioned hinges, it’s likely you have casement windows within your home or neighbouring properties have them.
Available in a wide range of configurations, whether it’s a classic left-hung sash with a top-hung fanlight and fixed frame casement arrangement or something a bit different, we’re confident we can tailor the perfect casement window replacement to enhance your property’s unique character.
Browse through our varied collection of window shapes, colours, finishes, and glazing options at your leisure and create the building of your dreams with ease.
View BrochuresRefreshing casement windows for properties in Aylesbury, Buckingham, High Wycombe & beyond
Available with sculptured (rounded) or chamfered (right-angled) frames, each casement window is designed to meet your specific project requirements. From traditionally-styled casement windows complete with an authentic woodgrain effect to modern triple glazed black casement windows, we can provide seasoned advice on the best style, finish, and glazing that's right for you.
Using our innovative online quote portal, getting a tailored casement window quote has never been easier!
Looking for slimmer casement windows? Then take a peek at our slender aluminium window frames.
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Energy saving casement windows in Buckinghamshire, Hertfordshire & Oxfordshire
Quality property improvements never compromise on thermal efficiency - after all, improving your building's energy performance has the power to add considerable value to your property. Combined with quality double glazing like double glazing Marlow, new double glazed casement windows could reduce your energy bills by £110 each year too.
Achieving some of the best Window Energy Ratings around, casement windows are also one of the most energy efficient window styles, thanks to tight seals positioned all around the edge. Developed using the latest in multi-chambered profile technology, our uPVC casements trap pockets of warm air inside to stop the cold from getting in, keeping you cosy and warm all year round.
Get a QuoteColour Options
Whether your improvement plans require bright white casement windows, contemporary black casement windows, convincing timber-look casement windows, or something a bit more vibrant to match your personality, finding the best fit for your project is incredibly straightforward with a Double Glazing Direct window installation. With over 150 RAL shades to choose from, as well as diverse dual-colour options, a world of colour awaits! Our vast array of colours are perfect for matching new installations with commercial branding too.
Grey
Black
Eclectic Grey
Corse Lawn
Rosewood
Golden Oak
Irish Oak
Cream
Chartwell Green
White
Silvered Oak
Titanium Grey
Storm Grey
Steel Grey
Anthracite Grey
Glass Options
Our energy efficient casement windows are capable of achieving A+12 Window Energy Ratings with modern double glazing & U-values as low as 0.8 with advanced triple glazing. If your room suffers from overheating in summer or is too cold to use in winter, we can install temperature-moderating Low-E glass. We also have an attractive range of decorative glazing, perfect for intricate heritage projects, adding privacy, and one-of-a-kind installations.
Chantilly
Charcoal
Contora
Digital
Everglade
Florielle
Mayflower
Minster
Oak
Pelerine
Reeded
Taffeta
Tribal
Warwick
Cassini
Accessories
From chrome inline locking window handles to exquisite Monkey Tail handles and teardrop dummy window stay bars that hark back to a simpler time - as well as heritage-inspired Georgian bar, Astragal bar, and mock sash horn detailing options - we're confident we have the perfect finishing touch for your new casement windows to truly make them your own.
Security
As well as the option to add an extra layer of protection with advanced triple glazing and high quality window locks as standard, all Liniar window products undergo extensive testing and checks. This means they can achieve the sought-after PAS 24: 2012 Enhanced Security Performance status, for peace of mind they can resist physical attacks by opportunist burglars.
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What do our customers say?
See more reviewsVery quick and professional service
I am very impressed, my home is much improved. Very professional. Prompt. Punctual. I highly recommend. THANK YOU ALL. I have just been in contact with Double Glazing Direct regarding...
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Damien Martin
We will be going back to Double Glazing Direct
Double Glazing Direct changed our very old and leaky polycarbonate conservatory roof to a new solid roof as well as changing the windows and doors of the same area. From...
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Buckinghamshire
‘Double Glazing Direct’ were brilliant.
They were extremely polite and professional. Before they started the work on the day of installation, taking out the existing windows, they prepared the area with dust sheets and special...
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Greater London
Great job, professional service
Replaced an old aluminium frame patio door with updated upvc doors. Work undertaken very professionally, leaving the area clean and tidy afterwards. Noticed a very slight imperfection upon completion but...
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Buckinghamshire
I would highly recommend
Marc and his team did an excellent job of replacing our conservatory glass roof with a Guardian Warm Roof. Work started on time and was completed within the stated time...
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David Tomlinson
Outstanding Service
We had many issues trying to locate a company to replace our conservatory roof however, this company was recommended to us by a friend of a friend and we couldn’t...
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Buckinghamshire
Visit our double glazing showroom in Aylesbury
We understand that improving your home or business is a big step, and it can often be difficult to picture new windows, doors and more by just looking at an image on a screen.
Our superb showroom in Aylesbury is the perfect place to get a real feel for the quality of our products and chat with a member of our team to learn more about transforming your property.
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Get an Online Quote
Getting a quote on your next property improvement couldn't be easier! Simply enter your details and one of our team will be in touch shortly with a comprehensive price for the work.