How to Get Rid of Flies Inside and Outside Your House

Few household nuisances are more persistent or maddening than flies—buzzing incessantly, invading your space, and making meals and relaxation an unexpected battle. Whether they’re swarming in late summer, sneaking in from outdoors, or breeding in hidden corners, flies present an ongoing challenge for homeowners. Fortunately, pest experts offer a comprehensive suite of strategies to remove flies and minimize their return.

Meet the Experts

• Roberto M. Pereira, Ph.D. – Insect research scientist and professor emeritus, University of Florida
• Nancy Troyano, Ph.D. – Director of Operations Education and Training, Rentokil Terminix
• Frank Meek – Board-certified entomologist, Technical Services Manager, Rollins
• Changlu Wang, Ph.D. – Extension specialist, entomology, Rutgers University

Why Flies Invade Your Home

House flies can invade nearly any time of year, with populations peaking during late summer and early fall. Flies are attracted to food, trash, moisture, and animal waste, entering homes through poorly sealed windows, doors, and other gaps.

Common Types of Flies

• House Flies: The most prevalent indoor species, drawn to food waste and fermenting matter.
• Blow Flies: Frequently found near garbage, dead animals, or decaying organic material.
• Fruit Flies: Attracted to ripe produce and spills.

How to Get Rid of Flies Indoors

Prevention is the foundation of successful fly control. If they’ve already made it in, try these proven remedies:

• Keep doors and windows shut whenever possible, sealing all likely entry points.
• Cover food and tidy up food debris immediately after meals.
• Use trash cans with tight lids and empty them regularly.
• Clean crumbs, spills, and pet food from counters, floors, and sinks.

Effective Home Remedies and Traps

• Apple Cider Vinegar Trap

  Mix equal parts apple cider vinegar and dish soap in a shallow bowl, then add a pinch of sugar. Flies are attracted by the scent, while soap breaks surface tension and drowns them.
  Place the bowl wherever flies are congregating.

• Commercial Fly Traps

  Devices like the Zevo Flying Insect Trap use ultraviolet light to lure flies and secure them on sticky pads. After the pad is full, replace it in seconds for continuous protection.

  Related: How to Get Rid of Gnats: Effective Solutions for a Gnat-Free Home
• Fly Swatters and Electric Rackets

  For small outbreaks, manual devices can offer quick, targeted relief.

Natural Repellents

Consider placing indoor plants and essential oils that deter flies, such as basil, mint, and eucalyptus oil. Though not foolproof, these can complement physical barriers.

How to Get Rid of Flies Outdoors

Most indoor flies originate outside. Target common breeding sites and entryways:

• Move mulch piles away from your house: Flies breed in decomposing organic material. Keeping mulch distant from doors and windows limits their access.
• Seal garbage cans: Rotting and fermenting wastes are prime fly attractants. Store bins away from main entrances and routinely clean containers.
• Promptly clean pet waste: Animal feces are ideal breeding spots, and flies can transfer bacteria from waste to food.
• Manage compost: Use containers with secure lids and regularly maintain compost piles.

Outdoor Fly Prevention Table

Preventing Flies: Indoors and Outdoors

Consistent cleanliness—indoors and out—is the best defense against flies. In addition:

• Repair or replace window screens with holes or tears.
• Seal cracks around doors and windows using caulk.
• Install and use door sweeps to block ground-level gaps.
• Minimize standing water in yards and basements.
• Store food properly, in airtight containers, and refrigerate perishable items quickly.
• Regularly inspect and clean drains—some fly species breed in organic buildup inside pipes.

Natural Repellents for Prevention

• Essential Oils: Eucalyptus, lemongrass, and peppermint oils can deter flies when diffused or applied (diluted) to entry points.
• Plants: Basil, lavender, rosemary, and mint are natural repellents; position near windows and outdoor seating.

When to Call a Professional

If DIY solutions and good hygiene aren’t working, and flies are a persistent, daily issue, contact a pest management professional. Signs you need expert help:

• You spot dozens of flies regularly, despite efforts to control them.
• There is evidence of fly larvae (maggots) in your home or yard.
• Flies appear after every cleaning or trap replacement.
• Home remedies work only for a few days at a time.

Benefits of Professional Fly Control

• Pest experts will diagnose hidden breeding sites and sources of infestation.
• Custom treatments ensure long-term relief for your specific home and surroundings.
• Professionals use advanced traps and environmentally responsible insecticides only where necessary.
• Ongoing consultation can prevent future outbreaks.

Frequently Asked Questions (FAQ)

Q: Why do I have flies indoors even though I clean regularly?

A: Even well-maintained homes can attract flies, especially during seasonal surges or if entry points (like screens and cracks) are unaddressed. External breeding sites, such as nearby garbage or mulch, are often the main culprits.

Q: Which home remedy is most effective for flies?

A: The apple cider vinegar and dish soap trap is among the most popular and effective methods—it lures flies and traps them quickly. Commercial sticky traps such as Zevo can also be highly efficient with minimal cleanup.

Q: How do I stop flies from breeding in drains?

A: Clean drains regularly with baking soda and vinegar, flush with hot water, and use drain covers when not in use to cut off breeding access.

Q: Are flies dangerous?

A: Flies can transmit bacteria and disease—especially when they come into contact with waste and food. Maintaining their control supports hygiene and overall health.

Q: What should I do if flies keep coming back?

A: Review and strengthen preventative measures, inspect for hidden points of entry and breeding spots, and consult professionals if flies persist.

The Bottom Line

Most fly problems can be solved or prevented by combining DIY remedies, good housekeeping, and strategic outdoor management. Persistent or recurring issues, however, may signal a larger hidden infestation that requires professional attention.

Fly Prevention & Removal Checklist

• Seal windows and doors
• Clean trash cans and keep lids tight
• Dispose of pet waste promptly
• Use indoor and outdoor traps
• Keep food covered and stored
• Repair and maintain screens
• Declutter to remove potential fly resting sites
• Contact a pro if infestations continue