How to Get Rid of Cluster Fly? Risks, Prevention Tips & What to Know
Learn how to get rid of cluster flies, understand the risks they pose, and discover effective prevention tips. Protect your home with expert advice and solutions.
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Cluster Fly
Reviewed by Daniel Brady
CEO at AnchorPest Services
Updated July, 25
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How to Identify Cluster Fly
Learn to spot cluster flies by their golden hairs, slow movement, and tendency to gather in large groups near windows or attics.
📏 Overall Size & Shape
⚠️ Active infestation
🎨 Covering & Coloration
Dark gray with golden-brown hairs.
🦵 Appendages
⚠️ Unhealthy indoor air detected
👁️ Head & Sensory Organs
⚠️ Fly presence—sanitation risk
🦷 Mouthparts & Feeding
⚠️ Hidden fly activity detected
🔎 Distinctive Marks or Tools
⚠️ Larvae developing—check areas
Key Distinguishing Features
- Burrows: Do not create burrows; enter buildings to overwinter in wall voids and attics
- Behaviour: Slow, sluggish fliers; often cluster in large groups on windows and warm surfaces
- Habitat: Prefer upper floors, attics, and sunny sides of buildings for overwintering
- Diet: Feed mainly on earthworm larvae outdoors; do not feed indoors
Quick Size Comparison
About the size of a housefly but bulkier, like a small raisin with wings
Are You Seeing These Warning Signs?
If you notice ANY of these signs, you likely have an active Cluster Fly infestation. Time is critical - contact us immediately.
⚠️ Active infestation
Large numbers of sluggish flies clustering around windows or in attics.
Immediate professional assessment required
⚠️ Possible fly breeding site
Presence of small dark fecal spots on windows or walls
Immediate professional assessment required
⚠️ Unhealthy indoor air detected
A musty or sickly sweet odor in infested areas
Immediate professional assessment required
⚠️ Fly presence—sanitation risk
Dead flies accumulating on window sills or in light fixtures.
Immediate professional assessment required
⚠️ Hidden fly activity detected
Buzzing sounds coming from inside wall voids or ceiling spaces.
Immediate professional assessment required
⚠️ Larvae developing—check areas
Live larvae or pupae found in hidden crevices or behind baseboards.
Immediate professional assessment required
Spotted Any of These Signs?
Don't risk your family's health. Our certified technicians can be at your property within 24 hours.
Serious Health Risks to Your Family
Pests can seriously harm you and your loved ones. Don't gamble with your family's health.
Protect Your Family Today
Professional pest control eliminates health risks immediately. Our safe, effective treatments protect your loved ones from dangerous diseases.
Why DIY Methods Always Fail
Save yourself time, money, and frustration. Here's why store-bought solutions don't work:
Vacuuming
Problem: Vacuuming only removes visible flies, not the hidden ones or their larvae
Result: Temporary reduction, but infestation quickly returns
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Sealing entry points
Problem: Cluster flies often enter homes through tiny cracks and gaps that are difficult to find and seal completely.
Result: Some flies still get inside, so the infestation continues.
Homemade vinegar spray
Problem: Vinegar does not kill or repel cluster flies effectively
Result: Infestation persists
Sticky fly paper
Problem: Cluster flies often avoid sticky fly paper as they are less attracted to it than other fly species.
Result: Only a few flies are caught, leaving the infestation largely unaffected.
Stop Wasting Time and Money
The average homeowner spends $200+ on failed DIY attempts before calling professionals. Meanwhile, the infestation grows worse.
Professional Solution That Actually Works
Our certified technicians eliminate pest infestations completely and permanently.
Here's what you get:
🔍
Immediate Assessment
Trained experts identify entry points and nesting areas
🛡️
Safe Treatment
Pet and family-friendly methods used
🎯
Complete Elimination
Targets entire colony, not just visible insects or rodents
📋
Prevention Plan
Long-term exclusion strategies
🧽
Health Protection
Proper cleanup and sanitization
✅
Guarantee
Service warranty and follow-up visits
Our 3-Step Elimination Process
🔍
1. Immediate Inspection
Complete property assessment within 24 hours
🎯
2. Targeted Elimination
Safe, effective treatment of entire colony
🛡️
3. Prevention Plan
Long-term exclusion and monitoring
Ready to Solve This Problem Forever?
Join thousands of satisfied customers who chose professional pest control.
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Professional pest control eliminates health risks immediately. Our safe, effective treatments protect your loved ones from dangerous diseases.
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