There are two leading contributors to black mould forming around windows or on window sills, including leaks and condensation.

It can be unsightly, especially when it has been left to grow for quite some time.

Jade Oliver, showroom stylist at Express Bi-Folding Doors said: “As much as we might not want to, one of the best ways to avoid mould is to leave windows open for a few hours. Do this while you are out or in a different room and it can make a huge difference.”

The expert also warned against one of the most common methods of getting rid of mould.

Many households will face mould during the winter months, especially around the window. To help, an expert has shared an “effective” solution for removing it.

She explained: “Bleach doesn’t work so don’t use it, however white vinegar left for around an hour will.

“Use a scrubbing brush or even a cloth soaked in warm, soapy water and that should do the trick.

“Remember to always wear gloves and a mask when getting rid of mould.”

White vinegar contains acetic acid which makes it a good natural and nontoxic alternative to cleaning chemicals when it comes to killing mould.

With the most likely cause of mould being condensation, it is important to tackle this as well when it comes to windows.

John Cutts, glass expert at, said: “Mould develops when there is excess moisture in the air which is why investing in a dehumidifier can help eliminate the problem.

“Having them placed on a windowsill can effectively absorb the moisture and prevent the spread from escalating.”

Keeping windows open also works helping to prevent mould growth so make sure to do this as much as possible throughout the winter months.

While this can be hard with the cold weather, 10 minutes per day is all that is needed.

If blinds and curtains are touching the glass, it can block the airflow, contributing to condensation throughout the night.

Make sure they are kept a good distance away from any windows or doors to help prevent water from building up.