Households across the UK are being urged to keep windows closed around the clock. The warning comes as venomous False Widow spiders prepare to invade homes during their mating season. Experts say their bite feels like a wasp sting and can cause painful swelling.
“August is when male spiders become active,” explained arachnologist Dr. Tom Elwood. “They’re searching for mates and will crawl through windows, up walls, even into bathtubs.” He added that these spiders are from the same family as the deadly Black Widow.

While False Widow bites are rarely life-threatening, they can cause fever, burns, and weeks of discomfort. “You may not see them, but they’re out there,” Dr. Elwood warned.
To protect your home, experts advise keeping windows shut, cleaning frames weekly, sealing cracks, and trimming nearby plants. Natural deterrents like peppermint oil and removing webs regularly can also help.
“Do the right things now,” Dr. Elwood said, “and you won’t wake up to spiders crawling across your bedroom floor.” Will you be taking extra steps to spider-proof your home?