These two words get used interchangeably all the time — but they mean very different things, and mixing them up can leave your space looking clean while still being genuinely unsanitary.

Cleaning Removes Visible Dirt

Cleaning physically removes dirt, dust, debris, and some germs from surfaces using water, soap, or detergent. It makes surfaces look and smell clean. But it doesn’t necessarily kill bacteria or viruses — it just reduces their numbers by removing them from the surface.

Disinfecting Kills Germs

Disinfecting uses chemicals (EPA-registered disinfectants) to kill bacteria and viruses on surfaces. Crucially, disinfecting doesn’t remove dirt — which is why the correct order is always clean first, then disinfect. Applying a disinfectant to a dirty surface dramatically reduces its effectiveness.

When Does Each Matter?

In a low-traffic private office, regular cleaning may be all you need most of the time. But in shared workspaces, gyms, medical-adjacent facilities, or during cold and flu season, targeted disinfection of high-touch surfaces becomes essential — not optional.

What to Ask Your Cleaning Company

Ask whether they clean before disinfecting, which EPA-registered products they use, and whether high-touch surfaces are on a separate disinfection schedule from general cleaning. If they can’t answer these questions specifically, that’s a red flag.

At Coyle’s, every scope clearly separates cleaning tasks from disinfection tasks — and we document both. Ask us for a sample checklist.