Aluminium Casement Windows in Sussex
Britannic Bi-Folds offer a stunning collection of aluminium casement windows to customers in East Sussex and West Sussex.
They come in an array of colours with complementary accessories to create the perfect combination to suit you and your property. The design and manufacture of our aluminium casement windows is top quality and they offer superior efficiency and security to give you peace of mind.
We are sure that our range of aluminium casement windows will be perfect for your home, whatever the style. All of our windows are tailored to meet your requirements and they come with customisable features to make them truly bespoke.
Elegant and Versatile
Our Origin aluminium casement windows are perfect for any home. They are practical, elegant and highly versatile, meaning they will suit any room in any property.
Our casement windows exceed expectations due to their adaptability, efficiency and style. They come with the added value of a high quality finish and security features.
Energy Efficient
Our casement windows provide outstanding energy performance thanks to the use of Aerogel technology. This cutting edge material provides incredible thermal efficiency, sound proofing and strength.
These aluminium casement windows are designed to withstand even the toughest in British weather, with their advanced weather tight seals. Our casement windows will prevent heat from escaping your home, enabling you to save money on energy bills.
We’re positive that you’ll be warm and cosy with our stunning double glazed windows.
Sophisticated and Stylish Casement Windows
Our aluminium casement windows are not only energy efficient, they are also tailored to your design specifications.
Available in a wide range of frame profiles, our aluminium windows can be designed with traditional chamfered and profiled frames or ultramodern profiles. You can choose from our extensive range of colours, which includes dual colour options, giving you the possibility of having a different colour on the inside of the window and the outside.
We also provide a range of metallic or colour coordinated handles to complement your casement windows, giving you a complete and stylish look. Whether your property is new build, or period and characterful, our casement windows are highly versatile and will suit your home’s style.
Safe and Secure
We understand that security is important and protecting your home is paramount. Our aluminium casement windows are industry accredited, meeting the highest of stipulations.
You can trust in the additional security our aluminium casement window provides. Our windows are Secured By Design accredited, giving you confidence that they meet police specifications.
Our aluminium casement windows all come with high security locking mechanisms, for complete peace of mind.
Why Choose Aluminium Casement Windows for Your Sussex Home?
When upgrading your home in Hailsham or Crawley, choosing the right window material is essential for long-term value. Our Origin aluminium casement windows offer a modern, high-performance alternative to traditional uPVC, combining ultra-slim sightlines with industry-leading thermal technology.
| Feature | Britannic Aluminium Windows | Standard uPVC Windows |
|---|---|---|
| Thermal Efficiency | Advanced Aerogel technology and thermal breaks for superior heat retention. | Standard multi-chambered profiles; generally less efficient over time. |
| Frame Profile | Ultra-slim sightlines allowing for larger glass panes and more natural light. | Thicker, bulkier frames required for structural stability. |
| Security Rating | Secured by Design accredited with multi-point Yale locking systems. | Varies by manufacturer; often rely on basic internal reinforcing. |
| Durability & Care | Corrosion-resistant powder coating with an industry-leading 20-year guarantee. | Prone to warping, UV discolouration, and seal degradation after 10-15 years. |
| Colour Options | Over 150 RAL colours available, including bespoke dual-colour finishes. | Limited range of foils and standard white/anthracite options. |
Bespoke Colours and Finishes
You can choose from range of 150 RAL colours. You can also opt for dual colours, meaning you can have a different colour on the inside frame and the outer frame. If this extensive choice wasn’t enough, we can also give you a wide range of handle styles and colours to accessorise your new aluminium windows.
Standard Colours
Slate Grey
Anthracite Grey
Black Grey
Jet Black
Light Silver
Dark Silver
Hipca White
Irish Oak
Golden Oak
Mahogany
Walnut
150+ RAL Colours
20 Year Guarantee
Our ultra slim, lightweight and durable aluminium casement windows come with an industry leading 20 year manufacturer’s guarantee.
You can be confident in the quality of our double glazed windows.
Aluminium Casement Window Prices
Our aluminium casement windows are competitively priced. They are available across the Sussex area, including Brighton, Hastings, Lewes and Eastbourne.
Speak to our helpful advisers via our online contact form, for a competitive aluminium window quote! A member of our friendly team will be in touch to discuss your casement window specifications.
Frequently Asked Questions
Our aluminium casement windows are a premium alternative to traditional uPVC, offering a perfect blend of modern aesthetics and long-lasting durability. Designed with ultra-slim sightlines, these windows allow for larger glass panes to maximise natural light and provide better views of your surroundings. Beyond aesthetics, they feature advanced thermal Aerogel technology for industry-leading energy efficiency and high-security multi-point locking systems as standard. Whether you are renovating a contemporary property in Crawley or a traditional home in Hailsham, our aluminium frames provide a sleek, maintenance-free solution that won’t warp or rot.
Yes, personalisation is a core part of our service. We offer an extensive range of over 150 RAL colours for our casement windows. While Anthracite Grey, Black, and White remain our most popular choices for modern Sussex installations, we also provide dual-colour options. This allows you to choose a bold exterior finish to boost curb appeal in areas like East Grinstead or Horsham, while maintaining a neutral white or bespoke internal finish to perfectly match your interior decor. All finishes are applied using a marine-grade powder coating to ensure they remain vibrant for decades.
Absolutely. Britannic Bifold Company specialises in the professional installation of premium aluminium casement windows throughout Crawley, Hailsham, and the wider Sussex region. Our expert installation teams are active daily across Uckfield, Haywards Heath, Brighton, and Eastbourne, as well as serving homeowners in Redhill, Reigate, and Royal Tunbridge Wells. We pride ourselves on our flexibility and attention to detail, ensuring every bespoke window is fitted to the highest standard for maximum thermal performance and security.
Our windows are engineered to be among the most energy-efficient on the market. By utilising the Origin profile and advanced Aerogel technology—the same material used to insulate space shuttles—our windows achieve incredibly low U-values. This means homeowners in cooler or more exposed areas like Crowborough or Heathfield can enjoy a warmer home in the winter and significantly reduced energy bills. When combined with our high-performance double or triple glazing, our aluminium casement windows provide a superior thermal barrier against the British weather.