About Flies

Flies show up fast in Arizona homes, especially during warm seasons and after monsoon moisture. They move into kitchens, bathrooms, garages and patio areas looking for food, water and places to breed. Some flies swarm drains.

Some gather near trash bins. Others hover around windows and lights. Once they start breeding inside drains or soil pockets, the population explodes.

Common Flies in Arizona Homes

Fromms Pest Control treats fly infestations across Phoenix, Mesa, Scottsdale, Chandler, Peoria, Glendale and surrounding cities. We find the source of the flies, treat breeding areas and help reduce the conditions that make them return.

Arizona has several fly species that commonly appear around residential properties.

House Fly

The classic gray fly found around kitchens, trash bins and patios.
More info: house fly on Wikipedia.

Fruit Fly

Tiny flies that swarm around ripe fruit, drains, trash cans and moisture in kitchens.
More info: fruit fly species on Wikipedia.

Drain Fly

Small, fuzzy moth-like flies that breed inside organic buildup in drains, soil, mop sinks and AC condensate lines.
More info: drain fly family on Wikipedia.

Fungus Gnat

Slender, mosquito-like flies that breed in damp soil, overwatered potted plants and moisture pockets.
More info: fungus gnats on Wikipedia.

Most indoor fly infestations come from either drains, trash, moisture or overwatered soil around plants.

Where Flies Hide and Breed in Arizona Homes

Flies are attracted to odors, moisture, and organic material. Around Arizona homes they commonly breed in:

kitchen drains and garbage disposals
bathroom sinks and shower drains
AC condensation drains
soil in potted plants
trash cans and recycling bins
yard waste, damp soil and compost
garage corners with spills or old trash
pet waste or outdoor food sources

Drain flies, fungus gnats and fruit flies can multiply extremely fast once they settle into one of these moisture pockets.

Signs You Have a Fly Problem

small flies hovering near drains or sinks
flies swarming near trash cans or recycling bins
flies around indoor plants or wet soil
a sweet, rotten, or musty smell from a drain
flies gathering near windows or patio doors
clusters of tiny flies resting on tile or shower walls

If you’re seeing flies repeatedly in the same area, there is almost always a breeding site close by.

Why Flies Are Common in Arizona

Arizona’s mix of heat, irrigation, and indoor moisture creates ideal conditions for fly activity. Flies thrive in:

warm temperatures most of the year
irrigated landscapes and overwatered plants
moist drains and shower floors
kitchen waste and food scraps
standing water after monsoon storms

Drain flies and fungus gnats become especially active during summer and monsoon seasons, when moisture levels rise inside and outside the home.

Are Flies Dangerous?

While flies do not bite, they spread bacteria, contaminate surfaces and can trigger allergies or breathing irritation. Fruit flies and drain flies spread quickly through kitchens and food prep areas. Fungus gnats target plant soil but can become a major annoyance indoors. House flies can carry pathogens when they land on food or surfaces.

Large populations of flies can also attract spiders, which rely on them as a food source. If you see both flies and spiders, pairing treatments with our general pest control service may help.

DIY Fly Control vs Professional Treatment

DIY cleaners and sprays may kill flying adults, but they do not eliminate the breeding sites. Drain flies keep coming back if the organic buildup inside pipes is not removed. Fungus gnats return if soil stays wet. Fruit flies return if trash and food waste sources are available.

Fromms Pest Control uses a full approach that includes:

identifying the breeding source, not just the adult flies
treating drains, soil and moisture zones
cleaning or breaking down organic buildup where needed
targeted perimeter treatments for outdoor breeding areas
follow up treatments if the infestation is severe

We also check for related issues. For example, AC condensation leaks and irrigation problems often lead to recurring fly issues.

How Flies Enter Homes

Flies can enter through:

open doors and windows
cracks around screens or frames
garage openings
drain lines and plumbing gaps
soil or potted plants brought indoors

Once inside, they immediately seek out moisture and organic build up.

Fly Prevention Tips

clean drains regularly with enzyme based cleaners
avoid overwatering indoor plants
empty trash cans often and keep lids sealed
fix moisture issues under sinks or behind appliances
clean up spills and rotting food quickly
improve airflow around bathrooms and kitchens

These steps reduce activity but might not be enough once a breeding site is established.

Fromms Pest Control: Fly Treatment for Arizona Homes

Fromms Pest Control has more than 20 years of experience eliminating fly infestations in Arizona. We locate where the flies are breeding, treat the source and rein in the population indoors and outdoors.

If fly activity is happening alongside other pests like roaches or ants, many homeowners pair service with our general pest control program for better overall protection.

Request a fly inspection from Fromms Pest Control