From derelict Grade II listed rail station to warm workplace thanks to Granada’s secondary glazing

  • 22 Nov 2019

As part of a £120 million redevelopment scheme at Peterborough’s Fletton Quays, Granada Glazing has designed, manufactured and installed bespoke arched secondary glazing systems to decrease the building’s carbon footprint and heat loss.

Constructed in 1845, the Grade II listed building was used as Peterborough’s first railway station and had been derelict for more than four decades.

Granada Glazing

Renovation of the Victorian railway sheds was a major part of the site’s development to create the city council’s new office, Sand Martin House.

Secondary glazing is an ideal solution to prevent heat loss, while preserving a building’s essential character. Double glazed sealed units were specified with the dual purpose of lowering heat loss and noise levels to suit its modern commercial use.


Granada’s arched heritage hinged frames supporting double glazed units were manufactured and installed to achieve an overall U-Value of 0.8W/m2K. This represents a considerable reduction in heat loss, as studies have shown a single glazed metal window has a U-Value of 5.7W/m2K.


Granada’s secondary glazing is frequently installed in listed properties, as well as buildings in conservation areas and areas with high noise pollution, where it delivers enhanced thermal and acoustic benefits.

When correctly specified and installed, secondary glazing maintains a building’s charm and character, while bringing the glazing system firmly into the 21st century.

Click here to view a video of the project.

Visit the website


Granada Glazing
Campbell Way
S25 3QD

Phone: 01909 499 899
Fax: 01909 499 900
Email: [email protected]

Twitter: @GranadaGlazing


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