Secondary Glazing for Period Properties

The term 'period property' covers a wide range of British architectural styles and eras, from medieval timber-framed buildings to Art Deco apartments of the 1930s. What they share is windows of historic significance that are typically single-glazed, often listed or conservation area protected, and in need of improvement.

Why Secondary Glazing for Period Properties?

Secondary glazing is the preferred solution for period properties for three key reasons: it is non-intrusive (installed internally without touching the original window), it is reversible (can be removed without trace), and it does not alter the external appearance of the building.

These characteristics make it suitable for virtually any period property — listed or unlisted, conservation area or not — and mean it does not require planning permission in most circumstances.

Types of Period Property We Serve

• Medieval and Tudor buildings — leaded lights, casements and small fixed lights. Bespoke fixed secondary glazing panels preserve original glazing while improving performance.
• Georgian townhouses — large six-over-six sash windows. Balanced vertical sliding secondary glazing.
• Victorian terraces and villas — sash windows with glazing bars. BVS/TBVS secondary glazing.
• Edwardian semis and terraces — two-over-two sash windows, bay windows, stained glass fanlights. BVS and bespoke solutions.
• Inter-war properties (1920s–1930s) — casement windows, Crittall steel frames, Crittal secondary glazing solutions.
• Art Deco apartments — large casement and fixed windows. Hinged and fixed secondary glazing.

Listed Buildings

Secondary glazing is the solution endorsed by English Heritage, Historic England and most conservation officers for listed buildings. We have extensive experience with Grade I and Grade II listed properties of all eras and can provide documentation to support any consent applications.