A grill that hasn't been cleaned in a while doesn't just look bad — grease buildup causes flare-ups, old carbon changes the taste of your food, and grime on the grates can harbor bacteria. The good news: a thorough clean is a project most people can do in under an hour with the right tools. Here's how we do it, step by step.

BBQ grill grate mid-scrub with a coil grill brush, dirty carbon buildup on one side and clean stainless steel on the other

What you'll need

  • A stiff wire or stainless steel grill brush (bristle-free brushes are safer — no risk of bristles ending up in food)
  • A degreaser or grill-safe cleaning spray
  • A putty scraper or old plastic card for stuck-on carbon
  • A shop vacuum or brush + dustpan for ash and debris
  • Dish soap and warm water
  • Rubber gloves and a garden hose

1. Start cold, and empty the tank or ash tray

Never clean a grill while it's hot — degreasers can smoke or ignite on a warm surface, and you risk burns. For gas grills, disconnect the propane tank. For charcoal grills, remove and dispose of cold ash completely.

2. Remove and soak the grates

Pull the cooking grates out and soak them in warm, soapy water for 15–20 minutes — this loosens baked-on grease so you're not fighting it with the brush alone. While they soak, move on to the burners.

3. Clean the burners and heat shields

This is the step most people skip, and it's the one that matters most for even cooking and gas safety. Use a small brush (an old toothbrush works) to clear debris from burner ports — clogged ports cause uneven flames and hot spots. Wipe down heat shields or flavorizer bars with a degreaser to remove grease buildup, which is a common cause of dangerous flare-ups.

Safety note: if you smell gas, see rust-through on a burner tube, or notice a burner won't light evenly after cleaning, stop and have it inspected — don't force a repair on a gas line yourself.

4. Scrape and brush the grates

Once soaked, scrub grates with your wire brush in the direction of the bars, then flip and repeat. For heavy carbon buildup, a scraper or putty knife gets under the crust before brushing. Rinse thoroughly — any leftover degreaser residue will smoke off during your next cook, which affects flavor.

5. Clean the interior and grease tray

Wipe down the inside of the lid and firebox with a degreaser and a non-abrasive pad. Empty and wash the grease tray or catch pan — a full grease tray is one of the most common causes of grease fires.

6. Wipe the exterior and knobs

Finish with warm soapy water on the exterior panels, handle, and control knobs. Stainless steel does best with a microfiber cloth and a stainless-specific cleaner, wiped in the direction of the grain to avoid streaking.

DIY vs. hiring a professional

A basic surface clean is a reasonable DIY job every few grilling sessions. But a full teardown — disassembling burners, degreasing the firebox, removing years of carbon buildup, or restoring a badly neglected grill — takes more time and the right equipment than most people want to spend a Saturday on. That's the gap professional grill cleaning fills: the same result, without you doing the scrubbing.

It's also where the equipment gap is biggest — we clean with a commercial portable steam cleaner, which breaks down baked-on grease without any chemical spray at all. It's not something most households own, but it's the difference between scrubbing hard at grease and having it lift on its own.

Skip the scrubbing

We bring the tools and do the deep clean for you — mobile service across Merced, Atwater, Turlock, and the surrounding Central Valley.

Book Now

Related reading