Designed for heritage properties and listed buildings, Alitherm Heritage Windows combine classic steel window aesthetics with modern performance. Ideal for renovations or replica refurbishments, they offer configurations such as fixed, side-hung, or top-hung casements. With a polyamide thermal break for energy efficiency, robust weather resistance, and compliance with PAS 24 security standards, these windows are a perfect blend of tradition and innovation. Customise with single or dual-colour marine-grade finishes for a bespoke look.

Designed for heritage properties and listed buildings, Alitherm Heritage Windows combine classic steel window aesthetics with modern performance. Ideal for renovations or replica refurbishments, they offer configurations such as fixed, side-hung, or top-hung casements. With a polyamide thermal break for energy efficiency, robust weather resistance, and compliance with PAS 24 security standards, these windows are a perfect blend of tradition and innovation. Customise with single or dual-colour marine-grade finishes for a bespoke look.

The Alitherm Series offers versatile, energy-efficient window solutions for both residential and commercial spaces. With options like side-hung, top-hung, reversible, and parallel-opening casements, these windows combine style and performance. Achieving Window Energy Ratings of A and U-values as low as 1.0 W/m²K, the range includes PAS 24-certified models for enhanced security. Available in a variety of colours and finishes, Alitherm windows deliver modern thermal performance with a timeless aesthetic, ideal for any project.

This versatile range is perfect for commercial, residential, and public projects, offering solutions for open-in tilt-turn, side-hung, fixed, pivot, and casement windows. With exceptional thermal performance (U-values as low as 1.1 W/m²K) and compliance with PAS 24:2016 for security, it’s ideal for energy-efficient, secure spaces. Whether for healthcare, education, retail, or homes, this range meets diverse requirements with durable marine-grade finishes and flexible design options to suit every need.

This versatile range is perfect for commercial, residential, and public projects, offering solutions for open-in tilt-turn, side-hung, fixed, pivot, and casement windows. With exceptional thermal performance (U-values as low as 1.1 W/m²K) and compliance with PAS 24:2016 for security, it’s ideal for energy-efficient, secure spaces. Whether for healthcare, education, retail, or homes, this range meets diverse requirements with durable marine-grade finishes and flexible design options to suit every need.