The Dirty Truth About Common Pest Biohazards You Need to Know
Posted By Jul 21, 2025
by atriumadmin

As spring arrives here in Edmonton, some homeowners may be discovering the unpleasant signs of pests, left over from the frigid winter months. Droppings, urine, and other contaminants can have long-term health effects on one’s living space, even when the pests themselves are long gone. These biohazards should always be dealt with by a licensed professional, such as Grimebusters. 


At Grimebusters, we’ve been remediating homes since 1994. Our expert biohazard cleanup team is here to decontaminate your space of these biohazards, so it’s habitable and comfortable once again. Let’s unpack some of the most common signs of pests you may encounter during your spring cleaning and why you should reach out to us for biohazard cleaning services

  1. Mice & Rodents: Alberta’s #1 Biohazard Pest

Alberta may be the largest rat-free zone in the world, but that doesn’t mean it’s completely rodent-free. Mice often leave biohazardous traces in garages, attics, basements, and other areas in the home. 


Common biohazards of rodents include: 

  • Droppings
  • Urine stains 
  • Ammonia-like odours


These biohazardous signs of rodents are inherently harmful to humans and can cause respiratory issues, allergic reactions, and even disease. Attempting to clean up mouse droppings without the necessary equipment can ultimately expose you to harmful bacteria and pathogens. Professional biohazard cleaning services like Grimebusters utilize specialized equipment and gear, including half-mask respirators, industrial-grade gloves, and Tyvek™ suits. 

  1. Birds & Pigeons: The Overlooked Hazard 

As it warms up, pigeons and birds can increasingly be found in the gutters, eavestroughs, and roofs of homes. These areas make the perfect place for nests and hiding spots, acting as shelter. While nests may seem like nothing more than a mild annoyance, the biohazards left by birds can be detrimental.


Common biohazards of birds include: 

  • Droppings
  • Mites, ticks, and other pests 
  • Feathers and other nest materials 


If you’ve noticed any of these bird signs, it may be time to look into biohazard cleaning services. Even outdoor bird droppings can still make their way inside through HVAC systems. Like biohazards from other pests, exposure to bird biohazards can cause health effects like skin irritation, inhalant illnesses, and other diseases. 

  1. Bed Bugs: The Stubborn Pest

Bed bugs are harmful to humans, causing itching, scratching, and allergic reactions through bites and biohazards. They’re most active at night, when they come out to feed. Bed bugs will hide in cracks in walls, upholstered furniture, and most often in the seams of mattresses. 


If you’ve noticed any signs of bedbugs, it’s crucial to get help from an exterminator. Bed bugs are one of the most difficult pests to get rid of without professional help. They’re extremely resistant, especially in shared-wall buildings like townhouses or apartments. Even if you get rid of infested bedding and furniture, they’ll often hide out in walls or flooring.  At Grimebusters, we help make the process easier with our biohazard cleaning services. We’ll prep the extermination area, then fully clean and decontaminate the area post-extermination. 


Common biohazards of bedbugs include: 

  • Fecal spots at mattress seams, pillows, and furniture 
  • Blood spots near beds and other feeding areas
  • Skin sheds on bedding, furniture, and wall cracks

Biohazards Don’t Wait. Neither Should You.

Pests do more than lower your property value. They’re detrimental to your health, leaving long-term health effects on you and your loved ones. If you’ve noticed signs of persistent pests in your home, it’s time for a professional biohazard cleaning service. Call an exterminator first, then let Grimebusters handle the dirty work after.


Trusted in Edmonton for over 30 years, Grimebusters is your reliable partner in eliminating pest biohazards—and keeping it that way. Contact us today to book your biohazard cleaning service with our team.