How much should I charge for a kitchen hood suppression inspection?

A semiannual inspection and tag for a single system commonly runs $150 to $350 per visit, driven by nozzle count, number of cylinders, and system complexity rather than by the hour. A dual-cylinder system over a long cook line with a dozen nozzles and electric shutoffs sits at the top of that range. Price per system, add for extra nozzles and cylinders, and charge each hood in a multi-hood kitchen as its own line and its own tag.

How often do kitchen hood fire suppression systems need to be serviced?

Under NFPA 96 and NFPA 17A, wet-chemical hood suppression systems require inspection and service every six months, which is why this trade has such reliable recurring revenue. On top of the semiannual cycle, fusible links are replaced on a set interval (commonly semiannually or annually), and cylinders require a 12-year hydrostatic test. Tracking all three date types per system is the operational core of the business.

How much does an Ansul cylinder recharge cost?

A cylinder recharge after a discharge typically runs $250 to $600 per cylinder, including the wet chemical and labor, and it is billed as emergency work rather than a routine visit. The 12-year hydrostatic test is separate, usually $75 to $175 per cylinder, with replacement if the cylinder fails. Because a discharged system is an emergency, after-discharge response often carries a 1.5x to 2x labor premium plus a trip charge.

Should I sell hood suppression service as a contract or per-visit?

Contracts win. A semiannual service agreement gives you a plannable route, a forecastable renewal, and first call on every recharge and reconfiguration, while the restaurant gets predictable compliance and a single vendor for the fire marshal and insurer. Price the agreement so the two annual inspections cover your cost to serve, then earn your margin on links, recharges, hydro tests, and coverage changes. One-off inspections leave you on a treadmill and leave the account open to competitors.

Why is nozzle-to-appliance coverage so important to document?

Each nozzle must be aimed at the appliance it was designed to protect, at the correct height and distance per the manufacturer's design manual. Restaurants routinely move fryers, swap a range for a griddle, or add a station without telling you, and if the coverage no longer matches the cooking line during a fire, the liability falls on the last contractor who tagged the system. A coverage map that records design aiming against the actual layout protects you legally and turns every kitchen change into billable reconfiguration work.

How to Price Kitchen Hood Fire Suppression Service Jobs

# How to Price Kitchen Hood Fire Suppression Service Jobs

Kitchen hood suppression is one of the best recurring-revenue trades in field service because the schedule is written into the code, not left to the customer. Every UL 300 wet-chemical system in a commercial kitchen requires a semiannual inspection, and no restaurant can skip it without risking a red tag from the fire marshal or a canceled insurance policy. That built-in cadence is your business model. The trick is pricing it so the routine inspections cover your overhead and the recharges, links, and hydro tests carry the margin.

Understand What You Are Actually Selling

There are two revenue layers in this trade, and mixing them up is the fastest way to underprice.

The first layer is the semiannual inspection and tag. Under NFPA 96 and NFPA 17A, a wet-chemical hood system gets serviced every six months. The tech checks the cylinder pressure and weight, inspects nozzles and blow-off caps, verifies the fusible links, tests the mechanical or electrical actuation, confirms the gas or electric shutoff trips, and hangs a dated tag. This is your recurring base.

The second layer is everything the inspection uncovers: fusible-link replacement (links are typically replaced semiannually or annually), cylinder recharge after a discharge, the 12-year hydrostatic test on cylinders, nozzle reconfiguration when a kitchen changes its cooking line, and system upgrades on pre-UL-300 equipment. This is where the real money is.

Price the inspection to win the account. Price the follow-on work to make the account worth having.

Ballpark Pricing to Anchor Against

Rates vary by region and competition, but these ranges reflect what independent dealers commonly charge:

Semiannual inspection and tag (single system): $150 to $350 per visit, depending on nozzle count and system complexity.
Fusible-link replacement: $8 to $20 per link in parts, billed at $15 to $40 installed; a typical hood has 2 to 6 links.
Cylinder recharge after discharge: $250 to $600 per cylinder including wet chemical and labor.
12-year hydrostatic test: $75 to $175 per cylinder, or replacement if the cylinder fails.
Full system inspection with multiple cylinders and appliance verification: $300 to $700+.
Emergency after-discharge response: premium rates, often 1.5x to 2x standard labor plus a trip charge.

A single mid-size restaurant on a semiannual cycle, with link changes and the occasional recharge, is worth roughly $600 to $1,200 per year. Fifty accounts on that cadence is a real business.

Build the Inspection Price From the System, Not the Clock

Do not quote by the hour. Quote by the system and its complexity. The variables that actually move your cost are the number of nozzles and appliances the system protects, the number of cylinders, whether the actuation is mechanical or electric, and how far the site is from your last stop. A single-cylinder system over a small pizza line is a 30-minute visit. A dual-cylinder system over a 16-foot cook line with a dozen nozzles, gas valve, and micro-switch shutoffs is not.

Build a per-system base price that covers the standard semiannual checklist, then add for extra nozzles, extra cylinders, and travel zone. Pricing per system also protects you when a restaurant has two or three hoods; each one is a separate line, a separate tag, and a separate price.

Nozzle-to-Appliance Coverage Is a Liability Line, Not a Formality

The single most important thing you verify on every visit is that each nozzle is aimed at the appliance it was designed to protect, at the correct height and distance per the manufacturer's design manual. Restaurants move fryers, swap a range for a griddle, or add a wok station and never tell you. If the nozzle coverage no longer matches the cooking line and there is a fire, the failure is on the last contractor who tagged the system.

That means every coverage change is billable reconfiguration work, and it is work you must document. A nozzle-to-appliance coverage map that records the design aiming against what is actually under the hood protects you legally and turns a code requirement into a quoting opportunity every time the kitchen layout drifts.

Track the Recurring Dates or You Lose the Revenue

The money in this trade evaporates when you lose track of due dates. Every system has a semiannual inspection due date, each cylinder has a 12-year hydro date, and links have replacement intervals. Miss the semiannual and the restaurant either gets red-tagged or, worse, calls a competitor who then owns the account.

A per-system register that flags the next semiannual due date, the last tag date, the cylinder recharge and hydro dates, and the fusible-link replacement schedule is the operational core of the business. The Kitchen Hood Suppression Service Kit is built around this register, with UL 300 status, semiannual due dates, cylinder weight-check and 12-year hydro tracking, and the NFPA 96 compliance summary rolled up by restaurant account so nothing ages past its date silently.

Contract the Accounts, Do Not Just Quote Them

One-off inspections are a treadmill. The operators who build durable businesses put every account on a semiannual service agreement: a set price per system per visit, links included or itemized, and a standing appointment. The restaurant gets predictable compliance and a single vendor for the fire marshal and their insurer. You get a route you can plan, a renewal you can forecast, and first call on every recharge and reconfiguration.

Price the agreement so the two annual inspections cover your cost to serve, and treat links, recharges, and hydro tests as the margin layer. Bundle a small discount on the inspection in exchange for the standing agreement and the right of first refusal on repairs; you make it back on the follow-on work.

Common Pricing Mistakes

Quoting per hour instead of per system. Complexity, not clock time, drives your cost and your risk.
Giving away link replacement. Links are consumables with real margin; itemize them.
Forgetting the 12-year hydro clock. A cylinder that ages out mid-contract is a cost you should have scheduled and priced.
Not billing coverage reconfiguration. When the kitchen moves an appliance, re-aiming and re-verifying nozzles is billable liability work.
Under-pricing after-discharge response. A system that has fired is an emergency recharge, not a routine visit.
Losing due dates in a notebook. Every missed semiannual is an account a competitor can take.

Start With the Schedule, Then the Price

This trade rewards operators who treat the code-mandated schedule as the product. Nail the recurring semiannual cadence, verify coverage on every visit, and let the links, recharges, and hydro tests carry your margin. Our free starter guide covers setting up your first ten accounts on a semiannual agreement, and the Kitchen Hood Suppression Service Kit gives you the per-system register, coverage map, cylinder and link trackers, and NFPA 96 roll-up to run it without building spreadsheets from scratch. Sell the schedule, price the follow-on, and the recurring revenue takes care of itself.