technicapestsolutions

Cluster flies (Pollenia rudis) are a common nuisance pest found across Canada, particularly during the late summer and fall months. Unlike house flies, cluster flies do not breed indoors or pose a direct health risk — but they invade homes in massive numbers to seek warmth and shelter as temperatures drop. Once inside wall voids, attics, and window frames, they form dense, slow-moving clusters that can be difficult to dislodge without professional help. If you’ve noticed a sudden influx of large, sluggish flies gathering around windows or emerging from walls during warm spells, you may be dealing with a cluster fly infestation. Timely cluster flies extermination is the most effective way to prevent re-infestation year after year.