Brits have been warned to keep their toilet seats down as increasing temperatures could spark a wave of cockroaches next month.

Pest control company, Rentokil, shared the frightening news after the UK was hit with a scorching heatwave this week. Rentokil issued an early alert ahead of July and said the warm weather creates "ideal conditions" for the unwanted guests. In response to the pest warning, plumbers have told homeowners to think twice about leaving the loo seat open. The firm stressed that people should further be covering drain holes to also prevent spiders, rats and flies.

Plumber James Chapman, from Bella Bathrooms, shared extra tips ‌to help keep the pests away this summer. He said: "The tip to keep your toilet seat down and cover your drain holes might seem simple, but as UK homeowners know, it's the simple things that often make the biggest difference.

Cockroaches could be another issue for people to deal with (
Image:
Getty Images/iStockphoto)

‌"By taking these steps, you can enjoy a pest-free summer, focusing on the sunshine and not on uninvited guests in your home. Remember, proactive pest control is not just a seasonal task but a year-round commitment to maintaining a safe and comfortable home environment."

‌Flies will also be a big problem in the hotter months. Paul Blackhurst, from Rentokil Pest Control, warned: "In indoor spaces, to help prevent infestations, it's important to dispose of food waste quickly, cover food compost caddies, and keep kitchen doors and windows screened properly or closed.

‌"Installing insect screens on doors and windows can also help to keep flies outside, limiting their access to indoor spaces and reducing their contact with food preparation areas. The combination of increasing humidity levels in the UK over recent decades, and the upcoming predicted heatwave this month, creates a perfect environment for these insects."

A boom in critters could come up Brits' loo pipes (
Image:
Getty Images)

Flies love wet and warm weather which accelerates their metabolism, leading to higher birth rates. And some of the pests can spread diseases such as Salmonella and E. coli. Mr Blackhurst added: "A female common house fly can produce up to 500 eggs in her lifetime, which can hatch in just eight to 24 hours and develop from egg to adult fly in as little as five to seven days. So it's vital to get ahead of this all-too-common pest problem before it quickly gets out of hand."