My Garage Is Full Of Flies [Causes & Solutions]

My Garage Is Full Of Flies [Causes & Solutions]

My garage is full of flies – causes & how to get rid of them?

The heralds of dirt and decay flies rank top among the pests that cause unrest to garage owners. Flies can transport various diseases ranging from salmonella, diarrhea, dysentery, and E. coli to cholera.

Besides the array of diseases they carry, flies reproduce rapidly with a 24-hour incubation period. As such, the sight of a few flies implies a horde of larvae manifesting in the comfort of your garage.

While there are many fly eliminations approaches, the easiest is to eliminate their food sources and breeding grounds. Common flies thrive on decaying material, food, and fecal waste.

As such, your approaches should aim to seal food and properly dispose of waste, thus making your garage unconducive to the manifestation of flies.

What Attracts Flies To Your Garage?

Before we delve into the approach for controlling flies in your garage, it is essential to identify the optimal conditions under which flies thrive.

While there are various types of flies, the most common are fruit flies, fungus gnats, and house flies.

House Flies

Houseflies feast on various materials ranging from fresh food and decaying material to animal excretion.

Like its relatives, the housefly pukes on food, thus spreading contaminants and bacteria from the source to your food.

In the garage, houseflies may be found within your garbage can or between the wallboards feasting on a dead, decaying rodent.

It is essential to ensure that your garbage is well sealed off and search for sources of foul smells before they decay. Alternatively, do away with double walls in your garage, thus reducing rodent shelter.

Fungus Gnats

Fungus gnats thrive in areas where the fungus is present. Regardless of their small size, fungus gnats can spread diseases if they contact your food.

Like the former, you can handle gnats by ensuring that your dustbin is well sealed and that organic waste is well sealed.

Sewer Gnats

Sewer gnats are common for sewer lines and kitchen sinks. Sewer gnats lay eggs in pipes with accumulated grease as larvae flourishes in the waste that collects on the pipes.

It is essential that you properly cover the maintenance holes near your garage and fix any leakages in time.

Fruit Flies

Unlike their counterparts, fruit flies are attracted to the sweeter things in life. They nest in rotten fruit and fermented drinks.

To control these, cover and dispose of rotting fruits so that they don’t attract flies to your garbage can. Also, wipe off any drink spills in your garage to deny fruit flies of food supplies.

Here are some affordable approaches you may employ to rid your garage of flies.

How To Eliminate Flies From Your Garage

Declutter Regularly

The garage is a getaway from the house as it helps you break the monotony of your home and focus your mind on various projects.

However, garage cleanliness is often neglected; thus, it is a space for rodents and bacteria to thrive.

To control the spread of flies in your garage, ensure to declutter your garage regularly and wipe off surfaces if you spill drinks on your workbench.

While at this, ensure that food remnants are appropriately disposed of in a sealed bag, thus preventing houseflies’ access.

Trash Can Upgrade

The garage is commonplace for placing the trashcans. Besides ensuring that dogs and squirrels don’t mess up your trash, placing it in the garage allows for the convenient disposal of wastes.

However, some trashcans do not seal off properly, thus allowing flies to access the waste and lay their eggs.

When disposing of your junk, tie off the waste bags containing organic food and ensure that the lid closes properly to limit flies’ access to the waste.

While at this, ensure that you rinse off bottles for recycling as these may attract fruit flies to your garage.

Similarly, ensure that you properly dispose of your animal droppings to curb bacteria transmission from your pets to your family.


There is a close association between houseflies, drain flies, and sewage. Since larvae thrive in the scum that accumulates in pipes where flies lay eggs, you must avoid leakages within or around your garage.

You should also ensure that all sewer holes near your garage are adequately sealed, thus reducing the flies’ access.

To control drain flies in your garage, clean off all drainages in your garage with drain cleaner and spray fly repellants to handle the mature flies.

Installing Fly Traps In Your Garage

Sticky fly traps are a great way to trap mature flies when controlling flies’ manifestation in your garage. For maximum results, place some food near the trap.

For houseflies, consider using a piece of meat and fruit for fruit flies.

In addition to this, you may consider investing in a fly swatter to get some action as you combat the fly menace in your garage.

When installing traps, ensure to cover openings that any flies from outside your garage could access. Often, this includes window seals and ventilation for your garage.

What attracts flies to your garage?

Rodent Control

Rodents are another leeway for the flourishing of flies within your garage.

Besides dropping litter in unreachable spots, rodents may perish and rot in your garage, thus providing food for houseflies and serving as a breeding ground for the flies.

For this, ensure that you organize your garage and provide ample lighting in all areas.

If possible, avoid installing double-layered walls in your garage, as these serve as a breeding site for various rodents.

Floral Defense

Herbs that ward off flies are another great natural solution for controlling flies in your garage.

These herbs include lavender, mint, lemongrass, oregano, and basil. Besides combating flies, these flowers give your garage a fresh scent and a touch of style.

You may also opt for carnivorous plants of sundew and the Venus flytrap. However, carnivorous plants require ample access to light, and thus may not flourish in dark garage spaces.

Pet Litter Boxes

Pet litter boxes are common in the garage. However, they should not be left for long without being replaced.

This is because flies feed on pet litter and may transmit various infections if they contact your food.

After replacing pet litter, ensure that the waste is far from your garage and out of reach by flies. Similarly, check your lawn for defecation as this may provide a source of food for flies residing in your garage space.

Mowing Regularly

After hibernation in wintry weather, flies erupt in the summer and lay adequate eggs to sustain their populations.

When laying eggs, flies select dark mushy places, including bushes and dumpsters.

With your dumpster covered, the next step is to mow your lawn and dry off stagnant water.

By doing away with breeding sites, you manage the manifestation of flies near your garage, thus doing away with home-bred flies.

You may also opt to spice up your lawn with fly repellant plants and herbs.

Pyrethrum Spray

Pyrethrum spray is a great way to rid your garage of flies. Since pyrethrum spray comprises chrysanthemum roseum, which is excellent for pest management, it helps curb many pests within your garage.

However, pyrethrum spray breaks down fast when exposed to heat and light. It is ideal for spraying the pyrethrum early in the morning or late in the evening, thus harnessing its maximum pest control capacity.

You may also consider using insect regulators on various breeding grounds.

Unlike pesticides, regulators halt the molting process and prevent insects from reaching maturity, thus reducing the number of mature egg-producing flies within your home.

Diy Trap

Another great trap for flies is vinegar mixed with soap. For this, make a concoction of vinegar water and dishwashing soap and cover it with paper.

Next, make some holes on the paper to allow the flies to enter the bottle. Once inside, the flies will get submerged in the solution and, in turn, drown.


Besides its intoxicating purpose, vodka serves as a great repellent for flies. However, you don’t have to invest many dollars into a bottle to combat flies.

For this, douse some bags in vodka and spread them around your garage. Since flies detest the smell of vodka, they reduce in numbers, thus resulting in lower reproduction.

What We Like About This Solution

Vodka is an eco-friendly solution that does not trigger allergies when keeping off flies. Also, vodka is readily available and free of irritants that would compromise your comfort.

Final Verdict

Flies are a common nuisance and health hazard in the summer. However, you don’t have to learn the secret trades for exterminators to keep your garage free of flies.

The tips mentioned above ensure that flies do not reproduce in your garage, thus managing larvae’s manifestation and growth within your garage.

For optimal results, identify the type of flies in your garage and select appropriate methods for managing the mature flies and larvae.