Secondary glazing manufactured and supplied by Granada Glazing has cured issues with heavy condensation on single-glazed windows for a couple in the Scottish Borders.

Jill and Francis Mordaunt are said to be so delighted with the difference that secondary glazing has made to their comfort, they are planning to have it installed throughout their 1920s semi-detached home, which is in a conservation area.

The couple sought advice from Peeblesshire Windows on improving the thermal efficiency of their Peebles home, but their primary concern was condensation, especially in colder weather.

“We’d been thinking about secondary glazing for eco reasons, but mainly because we’d had problems with condensation. On a cold morning, the windows would be running with water and that led to black mould round the edges,” explained Jill, a retired academic.

She says that having the six units installed – four vertical sliding units and two horizontal sliding units – has made a ‘huge difference’ to their living environment. The vertical sliders were glazed with 4mm toughened glass and the horizontal sliders were 6mm toughened glass.

The original timber single-glazed windows in the sitting room, bathroom and a bedroom were all treated using Granada Glazing’s new high-specification secondary glazing range. With ultra-slim, durable aluminium frames, Granada says the range offers narrower sightlines than its predecessor.

Where condensation is a major issue, Granada Glazing often recommends secondary glazing with balanced trickle ventilation for a ‘simple, cost-effective, and permanent solution’.

“I hadn’t realised how unobtrusive the secondary glazing would be; you can hardly see it’s there. And the panels are so easy to open and close for ventilation,” continued Jill.

“We had an extension built with double-glazing and were thinking about going down that route to solve the condensation issue. However, at cost of around £23k to £24k for six replica double-glazed windows versus around £3k to £4k for what we’ve had done, that was out of the question.”

“The sitting room is warmer in the morning, whereas it used to be chilly,” continued Jill. “It’s keeping the heat in. Not only will secondary glazing solve my condensation problem, but it will also hopefully reduce our heating bills. And we’ve retained the character of the original windows.”

Suitable for all property types, Granada’s slimline 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. Full training and marketing support is available to installers across the UK.