Casement Windows

Versatile Casement Windows for Every Property Style

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 Whether you’re replacing outdated single glazed windows or starting a new build, our team can supply and install high-quality uPVC and aluminium casement windows tailored to your needs.

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double glazed upvc casement window with frosted glass

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What Are 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 either double or triple 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.

installed casement windows with coloured out and white in

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Benefits of Casement Windows

Casement windows fitted with double or triple glazing offer a wide range of benefits that make them a popular choice for homeowners. 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. Improved glazing also helps reduce external noise, creating a quieter and more comfortable indoor environment, ideal for busy areas. Available in low-maintenance uPVC or sleek aluminium frames, these windows are designed to stay looking great with minimal upkeep. With a wide choice of colours, hardware finishes and glazing options, it’s easy to find a design that complements your home perfectly.

Casement Windows Key Advantages

Style & Versatility – Choose from a wide range of frame colours, handle finishes and glazing options to perfectly complement your property.

Noise Reduction – Double or triple glazing helps reduce external noise, creating a quieter and more comfortable indoor environment.

Low Maintenance – uPVC and aluminium frames are easy to clean and require minimal upkeep, staying smart and functional for years.

Security & Durability – Multi-point locking systems, reinforced frames and robust hinges provide long-lasting strength and protection.

Energy Efficiency – Advanced glazing helps reduce heat loss, maintain a comfortable indoor temperature and lower energy bills.

upvc casement windows with pattern glass

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 wide range of finishes and colours, from classic white to modern anthracite grey.

Aluminium Casement Windows

For a sleek, contemporary finish, aluminium casement windows offer exceptional strength, slim sightlines and long-lasting performance. Powder-coated frames resist corrosion and are available in a wide range of colours and finishes, making them ideal for modern homes and extensions.

uPVC vs Aluminium — Which Should You Choose?

uPVC windows offer an affordable, well-insulated and low-maintenance solution, making them a popular choice for many homes. Aluminium windows, by comparison, provide a sleek, modern finish with exceptional strength and durability, ideal for larger openings and contemporary designs. Our experienced team will guide you through both options and help you choose the best solution to suit your budget, property style and energy-efficiency goals.

Why Choose Windows Xpress?

When you choose Windows Xpress, you benefit from expert installation, high-quality products and a service built around reliability, value and peace of mind.

  • Experienced, professional installers

  • High-quality products from trusted UK manufacturers

  • Competitive pricing with free, no-obligation quotes

  • Supply & fit or supply-only options available

  • Trusted across East Sussex for quality and reliability

  • Comprehensive product and installation guarantees for peace of mind

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What 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.

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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.

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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.

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