Casement Windows
Double Glazed Casement Windows. Energy-Efficient, Secure & Stylish
At Windows Xpress, we supply and fit double glazed casement windows designed to enhance comfort, security and style in your home. Combining modern double glazing technology with expert craftsmanship, our casement windows are a practical and attractive upgrade that improves insulation, reduces energy bills and adds long-term value to your property. Whether you’re replacing outdated single glazed windows or starting a new build, our team can supply and install high-quality uPVC and aluminium casement windows tailored to your needs.
What Are Double Glazed Casement Windows?
Casement windows are one of the most popular window styles in the UK. These are hinged at the side and opening outwards to allow maximum ventilation and light. When fitted with double glazed glass, they provide excellent insulation and noise reduction, keeping your home warmer, quieter and more energy-efficient throughout the year. These windows suit almost any property from traditional homes to modern extensions. Offering multiple designs and finishes that will complement your home.
Get your FREE
No Obligation Quote
Benefits of Double Glazed Casement Windows
Double glazed casement windows offer a wide range of benefits that make them one of the most popular choices for homeowners. Their advanced sealed-glass units provide excellent energy efficiency, helping your home stay warmer for longer while reducing heating costs and lowering your carbon footprint. Built with reinforced frames, secure locking systems and durable hinges, they deliver long-lasting strength and security you can rely on. The improved glazing also helps cut down outdoor noise, creating a quieter and more comfortable indoor space which is ideal for busy areas. With low-maintenance uPVC or sleek aluminium frames, these windows are designed to stay looking great with minimal effort. Plus, with a wide choice of colours, hardware finishes and glazing styles, it’s easy to find a design that suits your home perfectly.
Double glazed casement windows key advantages
Energy Efficiency
The twin glass panes and insulating gas layer help reduce heat loss and maintain a comfortable indoor temperature. This results in lower heating bills and a smaller carbon footprint.
Security & Durability
Each window is fitted with multi-point locking systems, robust hinges and reinforced frames for maximum protection. Our installations are built to last, resisting warping, corrosion and everyday wear.
Noise Reduction
The double glazing significantly reduces outside noise, this is ideal for homes near busy roads, schools or busy neighbourhoods. Enjoy a quieter, more peaceful living environment.
Low Maintenance
Style & Versatility
With a wide range of frame colours, handle finishes and glazing options available, your new casement windows can perfectly complement your property’s look.
Our Casement Window Options
uPVC Casement Windows
uPVC is a cost-effective and energy-efficient choice, offering excellent insulation and long-term durability. These windows won’t rot, rust or fade and are available in a range of finishes and colours, from classic white to modern anthracite grey.
Aluminium Casement Windows
For a sleek, contemporary finish, aluminium casement windows deliver strength, slim frames and lasting performance. Their powder-coated frames resist corrosion and come in a wide variety of colours and finishes, ideal for modern homes and extensions.
uPVC vs Aluminium — Which Should You Choose?
uPVC windows offer an affordable, insulating and low-maintenance option, making them a great choice for many homes. Aluminium windows, on the other hand, provide a sleek, modern finish with excellent durability, ideal for larger openings or contemporary designs. Our team can guide you through both choices and help you select the best solution for your budget, property style and energy-efficiency goals.
Why Choose Windows Xpress?
When you choose Windows Xpress, you’re choosing expert fitters who ensure every installation meets the highest standards. We provide high-performance double glazed casement windows sourced from trusted UK manufacturers, with supply only options also available for trade customers. Our prices are competitive and include free, no-obligation quotes. With a reputation across East Sussex built on reliability, attention to detail and outstanding customer service. We handle everything from your first consultation to the final fitting with care and professionalism.
Contact us for more information & a FREE no obligation quote
Contact UsWhat is a casement window?
A casement window is a side-hinged window that opens outward like a door, making it one of the most popular and practical window styles in the UK. Modern uPVC casement windows and aluminium casement windows provide excellent ventilation, maximise natural light, and offer a secure, energy-efficient design suitable for almost any property style.
Are double glazed casement windows energy-efficient?
Yes, double glazed casement windows are highly energy-efficient. The sealed double glazing units help retain heat, reduce draughts, and improve overall insulation. Whether you choose uPVC or aluminium casement windows, both options contribute to a warmer, more comfortable home and lower energy bills thanks to their strong thermal performance.
Click here for more information on our windows
Can you replace my existing windows?
Absolutely. We specialise in replacing older frames with modern double glazed casement windows that enhance security, insulation, and kerb appeal. Whether your current windows are timber, aluminium or old uPVC, we can install new double glazed units that match your existing style or completely upgrade the look of your home.
Can casement windows be fitted with child safety features?
Yes, casement windows can be fitted with a range of child-safe features, including restrictor hinges and additional locks that prevent the window from opening fully. These safety additions are ideal for bedrooms and upper-floor installations, offering extra peace of mind without affecting the performance of your uPVC or aluminium casement windows.
Do you supply to trade?
Yes, we supply double glazed casement windows to both homeowners and trade customers. Whether you need supply-only uPVC casement windows or complete aluminium window sets for a building project, we offer high-quality products with competitive pricing and reliable local delivery.
Click here to contact us about more trade information.
How long will my new windows last?
With proper care, uPVC casement windows typically last 25–30 years, while aluminium casement windows can last even longer due to their exceptional strength and resistance to weathering. Both materials are low-maintenance, durable and designed to keep your double glazed windows performing efficiently for decades.
