Trash Bin Cleaning: Why It Matters and How It's Done

Why bins smell even when they look empty

A trash bin that has just been emptied still holds a thin layer of liquid, food scraps and grime on the bottom and walls. In warm weather that film rots fast. That is where the sour smell, flies and maggots come from, not from the bag you just threw away.

Los Angeles makes this worse for much of the year. Hot, dry summer days in the Valley bake bins sitting in the sun, and green waste bins full of grass and food scraps ferment between pickups. Rinsing with a hose moves some of the loose mess around, but it rarely removes the sticky layer that keeps the odor going.

Recycling bins smell less but still collect sticky residue from soda cans, wine bottles and takeout containers. Green waste bins are often the worst of the three, because wet clippings and food scraps sit together in the heat. Each bin needs the same thorough treatment, not just the one that smells the most.

The bin pad is half the problem

Bins leak. Over months, drips from the bottom stain the concrete or pavers where the cans sit and soak into the pores. Even after a bin is cleaned, a dirty pad can keep the area smelling and attract ants and flies.

That is why bin cleaning makes the most sense together with the pad or side yard under it. The concrete is pre-treated with a degreasing cleaner, given time to dwell, and then cleaned with a surface cleaner or wand. Deep, old stains may only lighten, but the odor usually drops noticeably once the residue is out of the surface.

How a bin is properly cleaned

The bin is emptied first, ideally right after pickup. Loose debris is scraped out. A cleaner suited to food residue and grease is applied inside and out, including the lid hinge and the rim where hands touch. After a short dwell, the inside is washed with a pressure wand or a rotating nozzle that reaches the bottom corners.

The bin is then tipped and rinsed so the water drains completely, and left open in the sun to dry. A deodorizer can be applied at the end. Drying matters as much as washing. A bin closed while wet will start to smell again quickly.

Where the dirty water goes

Bin rinse water is some of the nastiest water on any job. It carries food waste, grease and bacteria, and it should not run down the driveway into the gutter. Los Angeles Municipal Code section 64.70.02 prohibits discharging untreated wash water from paved-surface washing into the storm drain system.

In practice, that means washing bins where the water can be contained, blocking the nearest gutter inlet, and collecting the water rather than letting it run to the street. For a homeowner doing it alone, washing on a lawn area away from the street and using small amounts of water is far better than flushing the bin at the curb. Our guide to wash water rules covers the details.

DIY or add it to a driveway visit

Many people can clean their own bins a few times a year with a scrub brush, dish soap, a hose and a sunny afternoon. It is unpleasant work, but simple. Wear gloves and eye protection, because splashback is unavoidable.

Where a pro helps is when bins are badly neglected, when the pad is stained, or when you are already having the driveway or side yard cleaned. As of October 2026, driveway cleaning is $0.50 per square foot and walkway cleaning is $0.55 per square foot on our calculator, with a $195 minimum per visit. If you want the bins done during that visit, mention it so it is included before the flat price is confirmed.

Keeping bins fresh between cleanings

Bag food waste tightly and avoid pouring liquids into the bin. Line the bottom with newspaper or a little cat litter to soak up drips. Keep bins in shade if you can, and rinse the pad after a spill instead of waiting.

After a deep clean, a quick monthly rinse and dry is often enough to keep odor manageable. At Say Wash It we see the biggest difference when bins and the pad are cleaned at the same time, so the smell does not simply move from one to the other.