How Much Does Commercial Hood Cleaning Cost?

1. Number of hoods. Most pricing scales per hood, because each one adds filters to pull and scrub, plenum surfaces to scrape, and its own connection point into the duct system. A two-hood line isn't quite double the work of one — setup and protection of the cook line happen once — but hood count is the first thing any honest estimator asks.

2. Duct length and vertical runs. The duct is where the labor lives, and it's also where the fire risk lives. A short horizontal run to a wall-mounted fan is quick work. Several storeys of vertical duct, cleaned section by section through access panels, is a different job — more hours, more equipment, sometimes a second technician. A quote that doesn't account for your duct configuration isn't a quote; it's a guess that gets corrected on invoice day.

3. Fan and roof access. The exhaust fan has to be opened, scraped, and degreased — and on most buildings that means roof work. Easy roof access through a hatch keeps the cost down. Ladder-only access, steep roofs, or fans that need to be unbolted and tipped add time, and crews price that time in. If your fan has never been hinged for service, expect that to come up in the conversation.

4. Grease condition. A system cleaned on schedule carries a light, predictable load that comes off with standard hot-water pressure washing and degreaser. A system that's been skipped carries hardened, baked-on grease that has to be scraped and chemically broken down before any of it moves. That first restoration visit is the expensive one — if you're in that position, heavy-buildup remediation is the honest starting point, and routine pricing applies from the next visit on.

5. Service frequency. Counterintuitive but true: kitchens that clean more often pay less per visit. Quarterly service on a busy line means each clean is removing three months of grease, not twelve. The interval itself isn't a preference — NFPA 96 sets it by cooking volume, so check how often you need cleaning before you build a budget around the wrong schedule.

One-off cleanings are priced for unknowns. The contractor hasn't seen your system, doesn't know what's behind the filters, and has to quote with margin for the worst case. A scheduled contract removes the unknowns: the crew knows your system, the grease load is consistent visit to visit, and the work slots into planned overnight routes instead of emergency gaps in the calendar.

That shows up in the per-visit number, but the bigger savings are the ones that never hit an invoice: no rush premiums when an inspection notice lands, no restoration-level first clean every time you change vendors, and a paper trail that's continuous instead of patchy. The most expensive way to buy hood cleaning is reactively, one crisis at a time.

Don't forget the cost that never appears on any quote: downtime. Hood cleaning on a contract happens overnight or during your dark hours as a matter of routine, because the crew plans around your service schedule. A scramble booking takes whatever slot exists — and if that slot overlaps dinner service, the cheapest cleaning on paper just became the most expensive night of your quarter.

Hood cleaning quotes vary more than almost any other kitchen service, and the spread is almost always a scope difference, not a margin difference. The cheapest number on your desk is usually quoting a different job: hood interior and filters polished, nothing above the hood touched. The system looks clean from the cook line — and the duct, where grease fires actually travel, hasn't been opened.

So compare scope before you compare price. Does the quote cover the full duct run or just the hood? Is the fan included, and does the crew open it or just wipe the housing? Is the standard "to bare metal" — the NFPA 96 benchmark — or an unspecified "degrease"? What paperwork do you get when the truck leaves? A proper vendor hands over a certificate and a photo report; here's the documentation to expect and why a sticker alone doesn't protect you.

One more tell: a vendor who lists what they can't reach is usually the trustworthy one. Every system has inaccessible sections until access panels are added, and an honest quote says so in writing instead of letting you believe the whole run was cleaned.

It's worth pricing the alternative honestly. A missed cleaning interval is a citable violation, and a failed inspection means re-inspection visits, correction deadlines, and — in serious cases — an order to stop cooking until the system is brought to standard. None of that runs on your schedule.

The insurance exposure is quieter but bigger. After a grease fire, adjusters ask for cleaning records. Insurers can deny claims when required maintenance wasn't performed or documented — review your own policy's wording on this, because the certificate you didn't get is the one you'll be asked for.

And deferred cleaning doesn't make the cost go away; it compounds it. Grease keeps accumulating, the eventual clean becomes a restoration job priced accordingly, and the fire risk climbs the whole time. Staying on schedule is genuinely the cheap option — it just pays out in invoices you never receive.