Houseflies can be kept out of your home permanently with a simple 2-minute task in July, according to pest control expert William from Pest Buddy. The method involves cleaning sink drains regularly with boiling water, eliminating breeding sites without toxic chemicals.
Why July Is Prime Time for Flies
July is the worst period for flies because their eggs develop faster in warm conditions. Flies enter homes not only for food but also to find secure breeding locations. Once inside, they often hide in darker kitchen areas, and eggs can develop in under 24 hours, making elimination challenging.
Many people rely on insect sprays, but these contain toxic chemicals that linger on surfaces, posing risks to children and pets. William advises a safer approach: inspect and clean sink drains regularly.
The Hidden Breeding Ground in Your Sink
"Flies, and drain flies in particular, breed in the moist, organic film that builds up inside drains and plugholes," William explained. "Clean and disinfect drains regularly to remove a hidden breeding site and food source that's easy to overlook."
Flies are attracted to food smells from a distance. Kitchen hygiene—covering fruit bowls, disposing of rubbish frequently—is key, but sinks often accumulate leftover crumbs, peelings, and grease, creating a perfect breeding environment.
How to Perform the 2-Minute Task
To keep flies away for good, pour boiling hot water down the plughole. The temperature dissolves food residues and kills any flies or eggs present. For extra grease removal, add washing-up liquid or soda crystals.
Clean your sink weekly during summer, or daily if you suspect a fly problem. Also wipe kitchen worktops, sweep floors, and avoid leaving dirty dishes in the sink—even a tiny crumb can attract flies.
"A fly-free kitchen doesn't need to involve purchasing another product or device," William said. "Simply dedicating a few minutes to removing food debris is sufficient to deter them for the remainder of the summer."
