Darren McGhee, who owns DMG Services Group, has been working as a roofing contractor in Scotland, since the age of 16.

The 42-year-old, who was crowned Screwfix Top Tradesperson in 2019, told The Sun that not many people realise they can install insulation themselves.

As heat rises in your home, it’s got to go somewhere, so if the top of your house isn’t properly insulated, you’ll lose all that precious heat right out of the roof. It is estimated that loft insulation can help you to save up to £300 a year.

He said: “Fitting insulation in your loft space is the best way to stop heat escaping from your home – and it’s also pretty cheap.

“Anyone can do this, you don’t need to be a tradesperson.

“You can buy insulation from all local builder merchants or retailers such as B&Q and Wickes.”

You can purchase a 100mm thick roll for around £20 for around eight metres