Triple glazing in Chelsea

Homes in Chelsea are mostly Georgian and Victorian terraces, mansion blocks and mews houses. Triple glazed units are thicker and heavier, so they rarely suit slim traditional profiles in conservation areas, where secondary glazing may be a more acceptable alternative.

On Victorian terraces, triple glazing is best paired with wall and loft insulation improvements, since windows alone will not solve heat loss through solid brick walls. In flats near main roads or railways, triple glazing can help with comfort and noise, though acoustic laminated double glazing is sometimes more effective for sound alone.

Most of Chelsea lies inside conservation areas, and a fair number of houses are listed, so we look at planning before we talk about products. Where replacing the sashes is not an option, slim secondary glazing gives real gains in warmth and quiet, especially for rooms facing the Embankment or the King's Road. Parking is tight, so we sort out bay suspensions and loading in advance.

Triple glazing adds a third pane of glass and a second sealed gap, improving insulation and comfort beyond standard double glazing. It suits homeowners aiming for very high energy efficiency, people living near busy roads, and homes undergoing deep retrofits where walls, roofs and windows are all being upgraded together.

• Higher insulation than double glazing
• Warmer glass surface near windows
• Extra layer helps reduce outside noise

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