Blue Bottle Fly resting on counter top

Flies can spread germs and bacteria that can cause illness when they land on the surfaces in and around your home or business.

CALL 303-683-9283 to schedule your fly treatment TODAY! 

Our team of experts will inspect your home to identify the source of the fly infestation and develop a treatment plan to bring solution to your specific situation.


Flies may not be the most common pest encountered in the Denver Metro area, but they can cause quite a nuisance. Whether it is one fly or many, the buzz can be an unpleasant sound and an uncomfortable experience for homeowners & their guests or businesses & their clientele. Blow Flies, Cluster Flies, Fungus Gnats, and Fruit Flies are the types of flies that we treat most frequently.


Blow Fly resting on wood slat

Blow Flies typically live and breed outdoors, but may venture inside as the weather turns colder in the Fall. Blow Flies may also be seen where there is a deceased animal in or near the structure that the flies are able to breed on. For example, Blow Fly maggots may fall from light fixtures when an animal has died in the attic space above. The fastest way to handle this occurrence is the remove the carcass and disinfect the area.


During late Fall and Winter, Cluster Flies are probably the most common interior fly nuisance as they use buildings for temporary protection from the elements. While they are especially common at higher elevations though their activity can still be seen in the Metro area. Since Cluster Flies do not reproduce indoors, they are often seen dead or dying near windows or other sources of light inside a building.

Cluster Fly resting on soil

Thankfully, Cluster Flies are not a “filth fly” as they do not feed on garbage or breed on animal feces. Instead they breed and feed on earthworms throughout the Spring, Summer and early Autumn. As days shorten and temperature grow colder, Cluster Flies will gravitate towards the sunny sides of a building and search for cracks and crevices to go semi-dormant for Winter. The best way to avoid interior Cluster Flies activity is to seal up possible entry points around windows, doorways, vents, etc.


Fungas Gnat resting on soil surface

Fungus Gnats thrive in moisture rich conditions – especially where there is high organic material. They cause little to no damage, but can be a nuisance when high populations exist. Inside the home they are typically found on houseplants where they can feed on fungi and decaying plant matter. Treatment of Fungus Gnats often focuses on avoiding excess watering, increasing ventilation and isolated insecticide treatments.


  • Keep possible fly entry points sealed using caulk – especially the sunny sides of the building
  • Keep windows and doors screened when open
  • Avoid over watering plants and lawn areas
  • Promptly dispose of any deceased wildlife on your property
  • Keep food waste cleaned up daily and keep garbage tightly sealed
  • Ask your pest control professional about the use of fly lights and fly traps