Alitherm Heritage Casement
More about Alitherm Heritage Casement Steel-look Windows
Our steel look aluminium windows are the perfect blend of timeless design and modern performance. Designed to replicate the appearance of classic steel-framed windows, they feature ultra-slim sightlines and heritage-style detailing—ideal for period renovations, character buildings, and contemporary interiors that want to make a statement. Manufactured in-house using Smart’s Alitherm Heritage system, these windows are built for long-term performance, thermal efficiency, and security.
Steel-look windows are more than just functional—they’re an architectural feature. With their minimalist lines and refined proportions, they enhance both traditional properties and new-build homes. The Alitherm Heritage Casement Window offers a clean, classic option, while the Alitherm Heritage Tilt and Turn Window adds modern versatility with dual-opening functionality. Both options can be tailored to your exact specification, giving you design freedom and expert support every step of the way.
Trusted manufacturers since 2000
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Made in the UK
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Find answers to commonly asked questions about these stylish and durable windows crafted by Direct Trade Windows.
Contact UsSteel Look Windows from Direct Trade Windows are crafted from high-grade aluminium, ensuring robustness and longevity. They are versatile, ideal for both modern and heritage properties, and are renowned for their authentic industrial appearance. Our steel look-a-like windows not only provide an authentic appearance, they offer much improved security, thermal efficiency, and come at a fraction of the cost of steel. Moreover, these windows boast thermal efficiency, thanks to their innovative polyamide thermal break design, and are custom-made to fit seamlessly into any property.
These windows are designed with a focus on thermal efficiency. They incorporate a polyamide thermal break, which significantly enhances their insulation capabilities. This design helps maintain a comfortable indoor temperature, reduces energy consumption, and contributes to a lower carbon footprint.
Direct Trade Windows offers a wide range of customisation options for their Steel Look Windows. Customers can choose from various sizes, styles, and colour finishes to match the architectural needs of their property. This flexibility ensures that each window is tailored to the specific aesthetic and functional requirements of the customer while also meeting the minimum requirements of building regulations for energy efficiency.
Yes, Steel Look Windows are an environmentally friendly option. The aluminium used in their construction is recyclable and loses very little of its properties in the recycling process. This makes these windows a sustainable choice in line with rising government standards for building materials.
Direct Trade Windows guarantees the quality of their Steel Look Windows. They are a family-run business with over two decades of experience, ensuring exceptional quality control and craftsmanship in every window they manufacture and supply. Their windows meet rigorous industry standards, providing customers with assurance of their durability and performance.