Professional Fly Control and Fly Exterminator Services

House flies breed outdoors in garbage, animal waste, and decaying organic matter and enter structures through open doors, windows, and gaps. A sudden increase in house fly counts typically traces to an outdoor source that has grown — an overflowing garbage area, a nearby dumpster, or animal waste on the property — combined with entry points that allow flies to move indoors. Managing the outdoor source is as important as interior treatment.

Large flies suddenly emerging from a wall area or ceiling almost certainly indicate a dead animal — a rodent, bird, or squirrel — decomposing in the wall void. Blow flies breed in carrion and are a reliable indicator of an unseen carcass. The flies will eventually stop as the carcass desiccates, but the source should be identified and removed to prevent odor, secondary pest activity, and recurring fly emergence.

Cluster flies overwinter as adults in wall voids and attic spaces, seeking entry through the same gaps each year — typically around windows, soffits, and exterior trim. They aggregate on south-facing exterior walls in late summer before entering. Perimeter treatment in August–September combined with sealing of identified entry gaps substantially reduces the overwintering population and the spring emergence that follows.

Phorid flies are small, hump-backed flies that breed in decaying organic matter near or in plumbing — typically a broken sewer line, a leaking pipe in a crawl space, or a grease trap overflow. Their presence often indicates a sanitation or plumbing issue that goes beyond pest treatment. We identify the likely source, but resolving phorid fly infestations typically requires both pest management and a plumbing or sanitation correction.

No — fly light traps capture adult flies in the immediate area around the trap and are useful for monitoring and reducing counts in contained environments, but they do not address breeding or harborage sources. A facility can run multiple fly light traps and still have an escalating fly population if the source is not identified and eliminated.