Flies

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Professional Fly Treatment Services in Wrexham, Chester & North Wales

Fly control is the professional treatment and prevention of fly infestations using insecticides, UV killers and exclusion methods. We provide comprehensive fly control for homes and businesses throughout Wrexham, Chester and North Wales.
Several fly species cause problems in Wrexham properties. House flies (Musca domestica) are the most common domestic pest, particularly around kitchens and food preparation areas. Cluster flies (Pollenia rudis) invade lofts and roof spaces in autumn and winter in large numbers. Bluebottles (Calliphora species) typically indicate a dead animal or decaying matter somewhere in the property. Drain flies breed in drains and sewage systems.

Common Questions About Fly in Wrexham

What are cluster flies and why do they appear in autumn?

Cluster flies are 8–10mm flies with golden hairs, that hibernate in buildings during winter. They congregate in lofts, attics, and roof spaces from late summer onwards in large numbers—sometimes thousands. They are attracted to warm, south-facing walls and enter through small gaps in eaves, tiles, and window frames. Cluster flies are not a sign of poor hygiene—they are parasites of earthworms and live outdoors during summer.

What are the signs of a fly infestation?

Signs include seeing multiple live flies indoors, particularly around food areas or windows, finding dead flies on windowsills or in loft spaces, noticing fly spots (dark specks of faecal matter) on walls and ceilings, hearing buzzing sounds from walls or roof voids, and detecting unpleasant odours that may indicate dead animals attracting bluebottles.

Are flies a health risk?

Yes. House flies and bluebottles spread bacteria including salmonella, E. coli, and dysentery by landing on faeces, rotting matter, and then food preparation surfaces. Cluster flies pose less of a health risk but cause significant nuisance, faecal staining on windows, and unpleasant odours. In food businesses, fly infestations can lead to closure by environmental health officers.

How do you treat fly infestations in Wrexham?

Treatment depends on the species. For house flies and bluebottles, we identify and remove the source (dead animals, infested food, breeding sites), then apply insecticidal sprays and install UV electric fly killers where appropriate. For cluster flies in lofts, we use fogging or ULV (ultra-low volume) treatments to penetrate hiding spaces. Prevention includes proofing entry points and improving hygiene. Follow-up visits may be required for severe infestations.

Do cluster flies return every year?

Yes. Cluster flies tend to return to the same property year after year, even if neighbouring buildings are unaffected. This is likely due to pheromone signals left by previous generations. Sealing entry points around eaves, tiles, and window frames can reduce re-infestation, but complete exclusion is difficult. Annual preventative treatment in late summer is the most effective approach.

Can you treat flies in food businesses?

Yes. We provide discreet commercial fly control for restaurants, takeaways, care homes, and food manufacturing premises across Wrexham. We install and maintain UV fly killers, conduct hygiene audits, and provide documentation for EHO compliance and HACCP requirements.

Next Step:

Flies invading your home or business? Call us today for professional fly control.