Discover Aluview Alitherm Heritage: steel-look aluminium windows and doors with 47 mm slim sightlines, U-Value 1.5 W/m²K, Window Energy Rating B, PAS 24 security, dual-colour finishes and heritage-style hardware.
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Aluview’s Alitherm Heritage system is specifically engineered for conservation and refurbishment projects where a like-for-like replacement of traditional steel windows and doors is essential. Combining authentic slim sightlines with modern aluminium performance, Alitherm Heritage offers architects and specifiers a high-fidelity solution for listed buildings, Art Deco façades, Victorian terraces and Edwardian properties, seamlessly replicating the original aesthetic while meeting today’s stringent energy and weather-tightness standards.
At the heart of the system lies a robust polyamide thermal break and slim 47 mm frame depth, delivering a typical U-Value of 1.5 W/m²K (with 1.0 W/m²K sealed units) and a Window Energy Rating of B. Fully compliant with BS 6375 Part 1:2009 and Document L of the Building Regulations, Alitherm Heritage also achieves Air Class 4 (600 Pa), Water Class 9A (600 Pa) and Wind Class AE (2400 Pa). Dual-colour powder-coat finishes, marine-grade polyester paint and a choice of heritage-style hardware (including Monkey-Tail and Bulb handles) allow complete design flexibility.
The window range includes fixed lights, side-hung and top-hung open-out casements, and tilt-turn configurations, each capable of stacking into larger compositions via horizontal couplers and drip-bar modules. Complementing the windows, Alitherm Heritage doors provide single- or double-leaf options in both open-in and open-out formats, featuring multi-point locking and face-mounted shoot-bolts for enhanced security. Whether upgrading a grand façade or specifying a bespoke residential scheme, Alitherm Heritage delivers timeless character, superior thermal efficiency and low-maintenance durability.