Flies Rentokil fly control close up detail of a fly


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For 90+ years we have protected properties across the UK from pests

All local technicians are highly trained and certified pest controllers

Innovative and unique treatments that resolve pest problems effectively


There are over 120,000 species of flies worldwide. Many are considered pests because they pose a health risk to humans, pets and livestock through the spread of food poisoning, dysentry and diarrhoea. Flies can infest your home or business and spread diseases like Salmonella and E. coli. A few species may even bite humans and animals.  Depending on the size of your fly problem, there are various methods for fly control, from over the counter fly spray and DIY products to our Rentokil Fly Traps, and LED Fly killers.  Seasonality also plays a part in fly control, so if you do have an infestation, our trained technicians will be able to advise and guide you to the most effective fly control solution.

How to Stop Flies

Stopping flies getting into your property is never easy. If a small fly problem is left uncontrolled, it has the potential to turn into a serious fly infestation. Some fly species are able to mature from eggs to adults in just seven days. There are simple ways you can identify the signs of a fly infestation and reduce the need for fly control. Taking a proactive approach to get rid of flies will also help you avoid more costly treatments to eliminate flies if an infestation becomes more serious.

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Fly Species & Guides

There are many types of flies in the UK, and understanding their seasonality, habits and lifecycles will help to identify the most effective ways to eliminate them. In the UK we have several types of fly that can be a nuisance, the common fly, cluster fly, horse fly, fruit fly and the crane fly are a few.  Helpful facts about different types of flies their larvae, lifecycles and why they might be invading your home.

Flies and fly control FAQs

  • Where do flies come from?

    Common house flies can fly into a property from close by where they have been breeding in decaying organic matter (such as meat, fruit, vegetables) or faeces. These include compost piles, farms, road kill, rubbish bins – in fact anywhere there is decaying organic matter, including organic residue in your own bins. Fruit flies like sugary substances and feed and breed on overripe fruit, spilled soft drinks and alcohol residue. Drain or filth flies, as the name suggests seek moist areas to lay their eggs such as drains.

  • Are flies dirty?

    Yes, flies can carry and transmit pathogens and diseases like Salmonella and E. coli. They don’t frequent the cleanest environments, breeding in decaying matter and faeces. Whatever surfaces flies visit and crawl on, bacteria can stick to their bodies, especially their legs and wings, to then be deposited on food and clean surfaces elsewhere.

  • What does a swarm of flies in your house mean?

    Swarming flies in your property means dozens of fly eggs have recently hatched and developed into adult flies close by in gardens, allotments or your own garage or attic. They could have bred in fresh manure, rotting food stuffs, rubbish, and decaying organic materials and are now looking to feed so they in turn can breed.

  • How do I get rid of flies in my loft?

    A large gathering of flies in your loft space, attic or wall voids particularly in autumn is likely to be cluster flies. Common cluster flies (Polleniarudis) are large and black and look very similar to house flies so can easily be mistaken for them. If you seal cracks and crevices around windows, under eaves, fascia’s and door frames this can help to prevent them entering. Once cluster flies are inside you can use DIY direct contact sprays on visible adults, but for those flies already hidden and hibernating you will need the expertise of a professional pest controller to eliminate them completely.

  • Are fruit flies harmful?

    If you inadvertently consume the fruit fly larvae they can cause discomfort and diarrhoea.Tiny fruit flies, also known as bar flies thrive on high-fructose substances like over-ripe fruit, juices and alcohol residues - sweet fruity liquors such as Cointreau or Vermouth. They are also attracted to food residue in sinks and drains. They have the potential to cross contaminate food and drink with bacteria and pathogens. Female fruit flies lay eggs in ripening fruit and sweet fermenting liquids (open liquor and syrup bottles for example). Once hatched the larvae feed directly on the over ripened food or sugary liquids.

Rentokil’s Fly Control Solution For Your Business

Using a professional fly control service is the most effective way to guarantee the complete removal of flies from your property.

  • We offer a Free Survey of your business premises, to assess the level of infestation and identify the invading fly species.
  • Our BPCA certified technicians can offer effective, targeted fly control tailored to your requirements.
  • Treatments will include the removal of any potential breeding sites to guarantee a long-term solution to keep you, your home and your business safe from harm.

1. Contact

Call us and we'll arrange for your local team to contact you

  • Local BPCA certified experts
  • Trustpilot Accredited
  • Swift response

2. Survey

We will discuss your pest problem, arrange a free business site survey & provide a quote & recommendations

  • Appointment at a time convenient to you
  • Solutions tailored to your pest problem & business
  • BPCA certified technicians & surveyors

3. Treatment

Our BPCA certified technicians will come out to provide treatments with regular follow-up visits

  • Appointment at a time convenient to you
  • Tailored treatment & effective innovative solutions
  • Business sector specific & legislation expertise

4. Aftercare

We'll continue to monitor for pests, to ensure any new activity is resolved quickly

  • Insect pest identification & prevention advice
  • Effective & discreet solutions
  • Peace of mind
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DIY Fly Products

We offer a wide range of DIY fly products including fly traps, sprays, papers and plug-in fly control. Many of our products are insecticide-free and offer long lasting protection against flies and other flying insects in your home.