About Us

Heritage window
Listed building window

Award winning business InGlaze Ltd is an Aberdeen based manufacturer and supplier of high-performance secondary glazing systems, specialising in non-invasive solutions for listed buildings, heritage properties, and hard to treat windows in buildings across the UK. We design and manufacture innovative acrylic  secondary glazing that tackles the challenges of heat loss, condensation and noise without altering or damaging existing windows. Our system is ideal for properties where replacment glazing is unsuitable, restricted or too expensive. Providing the benefit of warmer homes and workplaces to many.

At InGlaze, we don’t just promise a warmer home; we prove it. In independent tests conducted at the University of Salford Energy House Labs in March 2026, our secondary glazing was shown to reduce heat loss through single glazing by 50% when applied as a whole-window solution (pp. 3-4). Even when applied to individual sashes to maintain window functionality, our system achieved a significant 41% reduction in heat loss (pp. 3-4). Engineered to meet the demands of the Scottish climate, InGlaze provides a scientifically validated, non-invasive way to upgrade the thermal efficiency of your traditional or heritage home (pp. 2, 4)