Blow Flies Around Your Home?
- Nov 8
- 2 min read

Blow flies are hard to miss. They’re the shiny, loud flies that seem to come out of nowhere around trash cans, kitchens, or garages. Most people assume they’re just big houseflies, but blow flies are different. When you see them, it often means something nearby is rotting, spoiled, or decomposing.
So if you’re noticing blow flies in your home or yard, it’s worth paying attention.
What Blow Flies Look Like
Blow flies are easy to recognize:
Bright metallic colors like green, blue, or bronze
Slightly larger than houseflies
Loud buzzing when they fly
If a fly looks shiny, it’s usually a blow fly.
What Blow Flies Feed On
This part is important. Blow flies feed on:
Rotting food
Dead animals
Animal waste
Garbage buildup
Food residue in drains
In other words, they show up where decay is happening.
Why Blow Flies Are Around Your Home
Blow flies don’t hang around clean, dry areas. They follow smells.
Common causes include:
A trash bag leaking or sitting too long
A dead mouse or rat in a wall, attic, or garage
Meat juice or grease spills in the kitchen
Food scraps in the garbage disposal
Animal droppings in the yard
In Rialto and Fontana, warm weather speeds up decay, which makes these problems show up even faster.
Why You Shouldn’t Ignore Blow Flies
Blow flies are more than annoying. They pick up bacteria from whatever they land on and spread it to surfaces in your home. They contaminate:
Counters
Pet dishes
Food prep areas
Anything left out uncovered
So the longer they’re around, the less sanitary your home becomes.
How to Get Rid of Blow Flies
You have to remove the source and treat the flies at the same time.
Start Here:
Empty and clean trash cans, inside and out.
Check behind appliances for old spills.
Clean drains with enzyme-based cleaners.
Look for rodent activity, droppings, or dead animals.
Then Treat the Flies:
Use sticky traps and targeted fly control treatments.
Sanitize all surfaces.
Fix any entry points rodents are using.
If blow flies keep coming back, the source is hidden, often behind a wall or under flooring. That’s when it’s time to bring in help.
TruPest Solutions Can Handle Blow Fly Problems at the Source
We don’t spray and walk away. We find why the blow flies are there. We eliminate the breeding site. Then we treat the flies and close off the problem so it doesn’t return.
This is especially important when the source is a dead rodent in a wall or attic, which is extremely common in local homes.
If you’re seeing blow flies around your house, contact us before the problem spreads.
Call 951-334-5288 or visit TruPestSolutions.com to schedule a blow fly inspection and treatment.






