Spectral Windows has expanded its fabrication range with the addition of the timber-alternative window system, The Residence Collection, including the Residence 9, Residence 7 and Residence2 systems.

Originally launched in 2011, The Residence Collection is widely approved for use on listed buildings and conservation areas and has proven especially popular in heritage rural and premium residential settings.

All Residence systems offer advanced thermal efficiency, with U-values as low as 1.2W/m²K with double glazing as standard. The multi-chambered profiles are designed to meet current Document L requirements, and trickle vent options and discreet vent covers help installers comply with Part F where necessary.

The systems are available in an extensive palette of up to 26 colours including heritage tones, dual colours and timber-effect finishes. A variety of jointing options are available – including mechanical joints, Graf welds, Timberweld, and traditional mitre welds.

Nick Rudd, director at Spectral Windows, commented: “The systems are perfectly in line with what today’s homeowners want, heritage design, modern performance, and a high-end finish.

“There’s a real appetite in the market for premium, low-maintenance timber alternatives. The Residence Collection delivers on every front – style, performance, colour, and compliance – and it gives our installer customers the edge when competing for high-value residential projects.”