Fly Prevention and Control for Home and Business

Flies are one of the most persistent and unhygienic pests encountered across Ireland. Whether buzzing around a domestic kitchen or swarming near a commercial food preparation area, flies can spread dangerous pathogens like Salmonella and E. coli every time they land.

Relying solely on swatting individual flies or using temporary aerosol sprays will not solve an ongoing issue. A successful long-term strategy requires combining effective fly deterrents, strict hygiene practices, and professional exclusion techniques to keep flies out for good.

At Rentokil, we provide comprehensive fly prevention solutions and expert advice across all 26 counties, helping you protect your family, employees, and brand reputation.

Before investing in heavy-duty treatments, you can make your property vastly less attractive to foraging flies by using simple, natural deterrents and basic environmental controls.

Flies rely on a highly sensitive sense of smell to locate food and breeding sites. Certain natural essential oils act as strong natural repellents:

• Peppermint & Eucalyptus: Spraying diluted peppermint or eucalyptus oil around window frames and doorways creates an olfactory barrier flies actively avoid.
• Lavender & Lemongrass: Planting lavender or lemongrass near outdoor seating areas and entry points helps deter house flies and midges naturally.
• Basil & Clove: Placing fresh basil plants on kitchen windowsills or sticking whole cloves into citrus fruits acts as a gentle, natural fly deterrent indoors.

Preventing physical entry is the single most effective deterrent method:

• Install Fly Screens: Fitting fine-mesh fly screens over open windows and kitchen doors allows fresh air in while keeping flying insects out.
• Air Curtains: For commercial premises, installing high-velocity air curtains above entrances creates an invisible air barrier that prevents flies from flying inside.
• Keep Air Moving: Using ceiling or floor fans in dining and food prep areas creates air turbulence, making it difficult for weak-flying insects to land.

Even the strongest fly deterrent will fail if your property contains accessible food sources or breeding sites. Follow these steps to remove what attracts flies in the first place:

When natural repellents and DIY methods are not enough to manage a severe fly presence, professional interventions are required to protect your environment.

Our Advanced Commercial Deterrent Range:

• Lumnia LED Fly Control Units: Our innovative LED fly traps attract, eliminate, and encapsulate flies hygienically without the risk of insect fragment blow-out. Lumnia units consume up to 79% less energy than traditional fly killers.
• Professional Insect Proofing: We identify structural gaps around doors, cladding, and ventilation systems, applying durable proofing materials to seal your property against pests.
• Targeted Breeding Site Treatments: Our qualified technicians locate hidden breeding grounds—such as drains, compost areas, or wall voids—and apply targeted larvicides to stop the fly life cycle at the root.