How to identify cluster flies
Slightly larger than house flies with golden hairs on the thorax; sluggish flyers.
Pest Library
Cluster Flies: Identification and Control
What cluster flies look like, why they are on your property, and how Antex eliminates them, guaranteed.
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Slightly larger than house flies with golden hairs on the thorax; sluggish flyers. This page covers how to recognize cluster flies, what draws them to Utah properties, and what actually works to get rid of them. If you think you have cluster flies now, skip ahead and call (435) 313-5882; inspections are free.
Behavior and habits
They parasitize earthworms in summer, then pack into attics and wall voids each fall, emerging on warm days.
Why cluster flies are a problem
A nuisance rather than a health threat, appearing at windows all winter long.
How Antex handles cluster flies
Our technicians confirm the species first, because effective control depends on it. Then we treat the source: nesting sites, harborage, and the routes onto your property, using professional products applied precisely. If pests return between scheduled visits, we'll come back and address the issue at no additional cost.
Prevention tips
Seal upper-story cracks and rooflines in late summer before the fall flight.
Questions
What people ask us
Are cluster flies dangerous?
A nuisance rather than a health threat, appearing at windows all winter long.
How do I get rid of cluster flies?
Store-bought products usually treat the symptom, not the source, which is why the problem returns. Professional control pairs correct identification with source treatment. Call (435) 313-5882 for a free inspection and flat quote.
How do I keep cluster flies away?
Seal upper-story cracks and rooflines in late summer before the fall flight.
Free inspections
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