get rid of cluster flies

Pest control services for Berkshire, Hampshire, Oxfordshire, Buckinghamshire, Middlesex, Wiltshire, Bedfordshire, Northamptonshire, Hertfordshire, Surrey & London. Established 1985.

PEST UK / Pests / Get Rid of Cluster Flies | Remove a Cluster Fly Infestation

Get Rid of Cluster Flies | Remove a Cluster Fly Infestation

Prices from £90/£100 +VAT

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

What are cluster flies?

Cluster flies look similar to house flies, however they behave very differently as they’re sluggish and don’t buzz around. They aren’t a health hazard as they aren’t attracted to your food or waste as somewhere to lay their eggs. They only invade homes when they’re looking for somewhere dry and sheltered to hibernate.


Why are cluster flies a nuisance?

  • Cluster flies often hibernate in houses close to open spaces and fields.
  • They are a nuisance because they infest properties in large numbers. Hundreds of flies form clusters in upstairs rooms, roof spaces, wall cavities or window sash boxes.
  • They go into hibernation gradually over several days. From late summer they start to gather in large numbers on sunny, light-coloured outside walls. Eventually they find their way inside by squeezing through crevices and cracks around tiles, window frames or under the eaves.
  • Once a hibernation site is selected, the descendants use the same site year after year because of genetic memory.


What are the signs of problems with cluster flies?

If you have a cluster fly problem you will notice dead, dying or lazy flies around windows or in roof spaces in the autumn or on warm days during late winter and early spring.

Why use a professional company to get rid of cluster flies?

Preventing cluster flies from accessing your home is impossible so getting rid of them can become necessary. Fogging the infested and surrounding areas with a biodegradable insecticide is the best solution as it allows the insecticide to penetrate into the cracks where flies may be hibernating.

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

PEST UK’s Guarantee

This treatment will not eliminate a cluster fly infestation but it will kill the vast majority of flies present at the time of treatment.

How much does it cost to get rid of cluster flies?

Insecticide fogging from £90/£100 +VAT

Please see our price list

What products do we use?

Listed below are some of the insecticides we may use. Click to access its data sheet

Coopex Maxi Smoke Generator Insecticide
Coopex Mini Smoke Generator Insecticide

All insecticides are biodegradable, almost odourless, non-tainting and do not corrode or stain, as well as being completely harmless to mammals.

An electric fly killers (EFK) can significantly reduce, but not solve, the problem.

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

£104.80 including VAT and delivery

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

About cluster flies

From late spring and during the summer, cluster flies live and breed in fields. The female flies 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 after two to three weeks. They subsequently emerge and reproduce. Up to four generations may be produced over the summer.

In early autumn, cluster flies start to look for dry, sheltered places to hibernate over winter such as under loose bark or in hollow trees. They emerge from hibernation in mid-spring. Adult flies feed on flower nectar, plant sap, fruits and other organic matter. They live for three to four years.

PEST UK are a member of the BPCA (British Pest Control Association)