Designed to capture the character of traditional steel windows while offering the advantages of modern aluminium, Heritage Casement Windows are an excellent choice for period properties and conservation areas.
Available in more than 150 RAL colours, Heritage Aluminium Casement Windows can be finished in a single colour or with a dual-colour option, allowing the interior and exterior of your property to have different finishes. The aluminium construction provides a durable, low-maintenance alternative to traditional steel windows.
The system is designed to deliver excellent thermal and acoustic performance, helping to reduce heat transfer while providing a comfortable and secure home. Aluminium also offers inherent strength and durability, making these windows a practical long-term solution for heritage-style properties.
Our commitment to quality is reflected in each installation being registered with Certass, the industry’s trusted governing body. By choosing Herts Glass, you opt for peace of mind and long-lasting performance, because your home deserves the very best. Contact us today for a free quote!
- Finishes: Single or dual colour, marine quality polyester powder coated aluminium as standard
- Glazing: Double, Triple, Obscure, Laminated, Toughened
- Maximum Sizes based on single opener
- Side Hung: Width 700mm x Height 1400mm
- Top Hung: Width 1400mm x Height 1300mm
- Frame Depth: 47mm
- Manufactured in United Kingdom
- Pas 24 Compliance on request
Performance and Durability
- Air: Class 4, 600Pa
- Water: Class 9A, 600Pa
- Wind: Class AE, 2400Pa
Alitherm Heritage windows excel in thermal performance; this invisible barrier within the frame acts like an insulator, separating the cold exterior from the warm interior. This significantly reduces heat transfer, resulting in a lower U-Value and improved heat retention. In other words, Heritage windows keep your home warmer in winter and cooler in summer, translating to significant energy savings on your bills.
Heritage windows cater to both aesthetics and functionality with a variety of opening configurations. You can choose from classic fixed windows that offer unobstructed views, ideal for showcasing architectural details. For a balance of ventilation and cleaning access, the innovative tilt-turn mechanism allows tilting the window inwards or full opening. Side hung windows provide a familiar option that opens outwards on a side hinge, saving space. Finally, top hung windows open outwards from the top hinge, perfect for high windows or controlled ventilation. This range of configurations ensures you can find the perfect solution for every window in your heritage project, striking the ideal balance between style, ventilation needs, and ease of operation.
Alitherm Heritage windows excel in thermal performance; this invisible barrier within the frame acts like an insulator, separating the cold exterior from the warm interior. This significantly reduces heat transfer, resulting in a lower U-Value and improved heat retention. In other words, Heritage windows keep your home warmer in winter and cooler in summer, translating to significant energy savings on your bills.
Heritage windows cater to both aesthetics and functionality with a variety of opening configurations. You can choose from classic fixed windows that offer unobstructed views, ideal for showcasing architectural details. For a balance of ventilation and cleaning access, the innovative tilt-turn mechanism allows tilting the window inwards or full opening. Side hung windows provide a familiar option that opens outwards on a side hinge, saving space. Finally, top hung windows open outwards from the top hinge, perfect for high windows or controlled ventilation. This range of configurations ensures you can find the perfect solution for every window in your heritage project, striking the ideal balance between style, ventilation needs, and ease of operation.