What is household hazardous waste?

Household hazardous waste refers to leftover chemicals and materials found around homes and garages that are toxic, flammable, or corrosive. Common examples include paint and paint thinners, lacquer or varnish, acetone, gasoline, propane cylinders, pesticides, herbicides, and cleaning solvents. These items pose risks during transport and at landfills, which is why they cannot be mixed with regular trash or hauled by most junk removal services.

Ontario municipalities recognize HHW as a separate waste stream and operate dedicated depots or collection days to handle it safely. Some regions accept HHW year-round at transfer stations, while others hold seasonal collection events. If a junk hauler tells you they cannot take paint cans, propane tanks, or other chemical containers, HHW disposal at a municipal depot is typically the only legal option.

Before calling a junk removal service, sort items into general household waste and HHW categories. Doing so prevents delays and ensures waste ends up in the right place. Many junk removal providers will clearly indicate what they cannot accept, and pointing them toward eco-friendly disposal options or your local municipality's hazmat drop-off schedule helps complete the job properly.