Get Rid of Flies - PEST UK

Providing pest control services in Berkshire, Buckinghamshire, Essex, Hampshire, Hertfordshire, Kent, London, Middlesex, Northamptonshire, Oxfordshire, Surrey, West Midlands, West Sussex, Wiltshire. Est. 1985.

Get Rid of Flies

Prices from £90 +VAT

To get rid of flies from your home or business premises call 0800 026 0308

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We don’t guarantee insecticide treatment for flies.
  • The treatment won’t eliminate a fly infestation but will kill the vast majority of flies present at the time.

The most common types of flies we deal with are house flies, fruit flies, filter flies, sewage flies, drain flies, blowflies, bluebottles, greenbottles, cluster flies.

Preparation you must undertake prior to treatment

  • All surfaces such as interior walls, ceilings, windows and frames must be clean and dust-free so that the technician can carry out the treatment efficiently.
  • Ensure kitchen worktops, under the cooker and kitchen cabinets are clean and free from crumbs and grease.
  • Remove any food that is left out including pet food.
  • Ensure cutlery, food, clothes, towels, toothbrushes etc are covered.
  • If you have an infestation of filter flies sewage flies or drain flies, wash away sludge around drains and in gutters etc.
  • If you have an infestation of blowflies, bluebottles or greenbottles, locate their food source e.g. an animal carcass or rotting rubbish, and remove it.
  • In pubs and bars, filter flies, sewage flies and drain flies breed in the sticky residue left in beer bottles so ensure these are disposed of and bottle banks are kept covered. Clean the floor behind the bar including under floor-standing equipment of spilled beer and alcohol.


  • Immediately after treatment let the spray dry; don’t clean or wipe up any puddles.
  • Reduce the humidity by opening windows and increase the heat to allow the treatment to work most effectively.
  • Don’t touch the treated surfaces or let pets into the treated area until dry.
  • If you do get the insecticide on your skin wash it off immediately.
  • Residual insecticide lasts 1 to 3-months.
  • Keep food covered if it’s left out.
  • In pubs and bars, keep the floor behind the bar including under floor-standing equipment clean of spilled beer and alcohol so it doesn’t become a breeding site for filter flies, sewage flies and drain flies, and ensure bins and bottle banks are kept covered.

How our treatment works

Our technician will chose an appropriate insecticide treatment depending on the type of fly.

  • Applying a residual insecticide to the interior walls and ceilings kills all types of flies when they land on the treated surfaces. It lasts 1 to 3-months.
  • A specialised insecticide is applied to drains which are being used as a breeding site by filters flies, sewage flies and drain flies.
  • Fogging is the best way to get rid of cluster flies as it allows the insecticide to penetrate into the cracks where flies may be hibernating.

Dying flies may be seen for up to 4-weeks after treatment as it depends on temperature and how much insecticide they have absorbed.

Products we use

The technician will state which insecticide has been used on the report they give you after they have completed the treatment. Click each product to access its safety data sheet. All insecticides are biodegradable, almost odourless, non-tainting and don’t corrode or stain.

Electric Fly Killers (EFKs)

An electric fly killer (EFK) can significantly reduce, but not solve, a fly problem ongoing.

Buy an electric fly killer (EFK) from our online shop

Fly-Shield 1

Designed for areas up to 90 sqm

Attracts and traps flying insects on a UV stabilised glue board.

1 x 18w shatter resistant lamps

W 34.5 x H 25.5 x D 12 cm

£106.80 including VAT and delivery

For other sizes and types of EFK go to our online shop

Facts about flies

House flies

House flies are one of the most common insects on the planet. They breed and feed on rotting organic matter in waste bins and garden compost, feces and rotting or spoiled food. They lay their eggs in clusters which hatch quickly. House flies spread bacteria and disease from things they have touched before they land on human food. Poor sanitation, bins only being emptied every 2-weeks and windows being left open can lead to house fly infestations.

Fruit flies

Fruit flies are common outdoors but often come inside to breed. They breed and feed on ripe, rotting fruit and fermented drinks such as beer and wine. They also may breed in drains, waste disposals and bins. Fruit flies spread bacteria and disease from things they have touched before they land on human food.


Filter flies, sewage flies and drain flies

Filter flies, sewage flies and drain flies gather, mate and lay eggs in moisture or standing water. The slimy film and sludge that forms in sewers and drains is a favorite breeding spot. If these flies are present in a house it’s likely there’s a slow or clogged drain.

They’re found at or near sewage works or sites with damp organic sludge. These flies are a nuisance because they infest in large numbers. They may plug pipes and spread bacteria from the filth they live in, possibly contaminating human food in the process.

Blowflies, bluebottles and greenbottles

Blowflies, bluebottles and greenbottles are more difficult to get rid of as they are bigger and stronger than other flies. They breed and feed off rotting meat, dead animals and birds, rotting organic matter in waste bins and garden compost. They spread bacteria and disease from things they have touched before they land on human food. If a fly lays eggs in food which is then swallowed by a human they may contract myiasis, an infestation of fly larvae which feeds off human tissue.

Blowflies, bluebottles and greenbottles often appear in large numbers as a result of them having just emerged from maggots in rotting organic matter or a dead animal. They are a problem in domestic situations when bins are only emptied every 2-weeks. They are also a problem in slaughterhouses and related industries.

Cluster flies

Cluster flies look similar to house flies, however their behaviour is very different as they’re sluggish and don’t buzz around. Adult cluster flies feed on flower nectar, plant sap, fruits and other organic matter. They live for 3 to 4-years.

From late spring and throughout the summer, cluster flies live and breed in fields. The females lay their eggs in the soil. When they hatch the maggots seek an earthworm host. They penetrate its body, continuing to develop until they become full-grown which takes 2 to 3-weeks. They emerge and start to reproduce. Up to 4-generations may be produced over a summer.

In early autumn cluster flies start to look for dry, sheltered places to hibernate over winter. They go into hibernation gradually over several days, starting with hundreds of flies gathering on sunny, light-coloured outside walls. They find their way inside by squeezing through crevices and cracks around tiles, window frames or under the eaves. The flies form clusters in upstairs rooms, roof spaces, wall cavities and window sash boxes. The flies emerge from hibernation in mid-spring.

Cluster flies return to the same hibernation site every year. Their descendants will continue to use the same site year after year because of genetic memory.