Sheerline Aluminium Windows & Doors, Redefining Modern Performance

Sheerline brings a fresh perspective to aluminium windows and doors engineered with cutting-edge technology, timeless design, and exceptional performance. Built around a patented multi-chamber Thermlock® thermal core, Sheerline systems deliver market-leading insulation, high security, and striking aesthetics for modern builds, heritage renovations, and everything in between.

Why Sheerline?

Innovative Performance: Our Thermlock® technology enhances thermal efficiency, helping to reduce heat loss and lower energy costs with products designed to meet the latest building regulations and deliver superior U-values.

Slim, Elegant Sightlines: Ultra-slim aluminium frames maximise natural light and create clean architectural lines that elevate interiors and exteriors alike.

Outstanding Security: All products come with robust security features and PAS24 accreditation with options to upgrade to Secured by Design for even greater peace of mind.

Versatile Design Options: Whether you prefer contemporary minimalism or classic heritage styling, the Sheerline range offers windows and doors, from classic casements to Prestige lift-and-slide and bi-fold systems in a wide palette of colours and finishes.

Crafted in the UK: Designed and manufactured with precision in the UK, Sheerline products are backed by meticulous quality control and exceptional customer service from initial enquiry through installation.

Beautifully Designed. Built to Perform.

Whether you’re designing a new build or enhancing an existing property, Sheerline aluminium windows and doors offer a premium, future-proof solution that combines form and function. With sleek aesthetics, robust performance and unmatched versatility, it’s aluminium - but not as you know it.