The owners of an apartment in a historic former cotton mill say they have cut around 40% off their energy bills since installing 11 secondary glazed panels from Granada Secondary Glazing.

The three bedroom duplex in the Grade II & II* listed Murray’s Mills in Ancoats, Manchester, retains features such as exposed brickwork walls and multi-pane, sash and bay heritage windows. But the single glazing was contributing to electricity bills of up to £450 a month.

“Secondary glazing is the best investment we’ve made, I think, on this property to date,” said Lindsey Gordon, “.It’s made a huge difference, saved us money and the flat is now silent and warm.”

The secondary glazing was fitted in February 2021 and Lindsey noticed an immediate difference in heat retention, noise reduction and the March bill had dropped to £230.

Reducing noise intrusion was the main reason for getting secondary glazing and the 6.4mm acoustic laminate glass offers enhanced sound insulation that can reduce noise levels by as much as 80% (54 decibels). However, she says the improved thermal efficiency it also provides makes it: “a very wise investment, especially in these times.”

She added: “The secondary glazing has made the flat completely soundproof and the rooms remain warmer for longer after the heating goes off.”

Granada’s aluminium secondary glazing frames can be powder coated in over 200 RAL colours. The Granada Glazing product range encompasses hinged, sliding, vertical sliders, including tilt back, and lift-out options.

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