Specialist answers to the questions we are actually asked on the doorstep — written by the technicians who run heat treatments in homes across Hertfordshire and London. For the full method, our permanent heat treatment and identification pages remain the definitive guides.
We publish specialist articles only when they add something our permanent guides do not already cover. In the meantime, our heat treatment pages explain the full process.
Bed bug heat treatmentOur established seasonal library covering rodents, wasps, flies and other pests across the county.
Clothes-moth damage in UK homes peaks in autumn as larvae feed before winter. A weekend of preparation now saves wool jumpers, rugs and family heirlooms.
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Across Hertfordshire we are seeing one of the quietest wasp and bee seasons in twenty years. Here is what our call-out data shows, and what the 2026 heatwave appears to have done to nesting colonies.
Read morePharaoh ants are nothing like garden ants. They nest indoors, breed year-round, and a single spray can split one colony into ten. Here's why they need specialist treatment.
Read moreWasp nests grow exponentially through the summer, but only become a real nuisance in August. Here's the seasonal cycle and when removal makes sense.
Read moreWarm weather plus an unseen breeding source equals a fly problem that swatting will never fix. Here's how to find the source and shut it down.
Read moreWarm, humid summers turn a handful of flea eggs into a full infestation in weeks. Here's the seasonal cycle and how to stay ahead of it.
Read moreEvery July, winged ants pour out of pavements and lawns across the UK. Here's what's happening, why it matters, and when a swarm signals a nest you should treat.
Read moreSquirrels have two breeding seasons a year, and the summer litter is the one most homeowners first notice. Here's what to do — and what not to do.
Read moreThe UK does have mosquitoes — and warm wet summers are making them worse. Here's how to cut breeding sites around the house and garden.
Read moreBed bug numbers climb sharply between June and September across the UK. Here's the seasonal pattern, why holidays are the biggest risk, and the early-warning checks worth doing.
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The earlier you catch bed bugs, the cheaper and easier they are to treat. Here are the signs Hertfordshire homeowners and hoteliers should look for.
Read moreWorried about that big stripy insect in your loft? Here's how to tell a common wasp, European hornet and the invasive Asian hornet apart — and what to do about each.
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As the temperature drops, mice move indoors. A weekend of proofing now saves a much bigger problem in January.
Read moreCarpet beetle larvae cause more textile damage in UK homes than clothes moths, but most people don't recognise the signs. Here's the seasonal cycle and how to break it.
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The most common question we get on the phone. Here's a straight answer about modern professional products and how we use them in family homes.
Read moreThe first warm March and April days bring black garden ants streaming into Hertfordshire kitchens. Here's why it happens — and what actually works.
Read moreCluster flies don't infest homes the way house flies do — they overwinter in roof voids and emerge on the first warm spring days. Here's what's happening.
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