Ottawa Cluster Fly Solutions & Removal
If you have large, sluggish flies buzzing lazily around your windows in the spring or fall, you are likely dealing with Cluster Flies. They are looking for one thing — a warm place to sleep for the winter.
Comprehensive Cluster Fly Solutions in Ottawa
Know the Difference: Cluster Fly vs. House Fly
Misidentification is common. Knowing what you are looking at is the first step to control.
- Cluster Flies — Slightly larger and darker than house flies. Golden hairs on their thorax. Wings overlap completely when at rest. Famously "lazy" and sluggish, gathering in large groups on sunny windows.
- House Flies — Grey with four distinct black stripes. Wings held apart in a triangular shape. Fast, erratic fliers that breed in filth, garbage, and decaying organic matter.
- Source — Cluster flies hatch outdoors in the soil (they are parasites of earthworms) and migrate indoors to hibernate.
The Seasonal Cycle
Understanding the Cluster Fly calendar is critical for effective control.
- The Fall Invasion (Late August – October) — Adult flies congregate on sun-exposed sides of your home (South and West walls) to warm themselves before crawling into cracks, soffits, and vents to overwinter in your wall voids.
- The Spring Awakening (March – May) — As the sun warms your home, the flies hibernating in your walls "wake up," emerge into your living space, and fly toward windows trying to get back outside.
Service Options
We offer flexible solutions designed to match the severity of the infestation and the time of year.
- Single Service Treatment — A one-time targeted treatment to address current activity. May involve exterior barrier spray or interior crack-and-crevice treatment depending on the season.
- Seasonal Package (Spring & Fall) — Spring Visit: Manage the population emerging from hibernation with interior treatment of window frames, baseboards, and voids. Fall Visit: Prevent new flies from entering with a residual barrier on soffits, eaves, peaks, and window frames.
Service Guarantee
- Free comprehensive inspection
- Same-day emergency service
- Family-safe treatments
- All services warrantied
- 100% satisfaction guarantee
- Transparent upfront pricing
Service Areas
Our Cluster Fly Solutions Process
A proven, systematic approach to pest elimination and prevention
Identification
We confirm the species (cluster fly vs. house fly) and assess the severity of the infestation.
Timed Treatment
Treatments are scheduled to match the seasonal cycle — spring for emerging flies, fall to prevent entry.
Barrier Application
Residual barrier applied to soffits, eaves, peaks, and window frames to stop migration.
Seasonal Protection
Spring & Fall package breaks the cycle of migration with comprehensive coverage.
Cluster Fly Solutions FAQ
Break the Cluster Fly Cycle.
Stop the annual invasion. Contact PrecisionPro Pest Solutions for timing-based cluster fly treatments.