A stopcock is your mains water tap, which should be turned off as soon as you notice a frozen pipe to stop it bursting and spilling water into the home.
Martin Lewis's urgent warning for home-owners as temperatures dip The plunging temperatures and significant snowfall has resulted in absolute carnage in January, with more flurries expected in the mid-to-late week.
"In my house it's under the kitchen sink, a very common place to find it," Martin said in a 2012 blogpost that was updated last year.
If your home gets too cold, you're at serious risk of frozen pipes - which can be costly to repair and wrecks havoc on your house.
Money-saving guru Martin Lewis has warned that all households should therefore be aware were their stopcock is located.
