Every commercial kitchen lives under the same equation: the cooking line is both the revenue engine and the most likely place in the building to catch fire. The hood suppression system is what keeps that equation survivable, and it carries three distinct costs — buying it, servicing it twice a year, and recharging it if it ever fires. Here's the full picture, with market ranges compiled from published 2026 contractor pricing.
The cost table
| Item | Typical range |
|---|---|
| New wet-chemical system, single hood, installed | $3,000 – $6,000 |
| Additional hoods / larger cooking lines | +$1,500 – $4,000 per hood |
| Semiannual NFPA 96 service visit | $150 – $400 per system |
| Fusible link replacement (part of service) | $10 – $30 per link |
| Recharge + re-certification after discharge | $1,000 – $3,000 |
| UL 300 upgrade of a legacy dry-chemical system | price as a new install |
What the install price includes
A compliant system is more than a tank over the fryer: agent tanks sized to the hood and appliances, nozzles aimed at each appliance, the plenum and the duct, fusible links along the line, a manual pull station by the egress path, and automatic fuel/power shutoff for the cooking equipment. If the building has a fire alarm system, the hood system also ties into it. When appliances move — even a few feet — nozzle aiming must be redone; that's a common surprise charge after kitchen reconfigurations, and a common citation when skipped.
The service rhythm (and why it's not optional)
NFPA 96 puts hood systems on a six-month professional service cycle — the tightest schedule of any fire protection system in your building, because grease, heat, and constant use degrade links and clog nozzles fast. The service tag on the tank is the first thing the fire marshal and your insurance inspector look at. Between visits, your team's job is simple: keep the hood and filters clean (grease cleaning is its own separate contract) and report any cooking-line changes to your service company. The hood service guide covers what a compliant visit includes, and our compliance calendar keeps the semiannual dates in front of you.
Discharge economics
When a hood system fires — real fire or accidental — the line stops until a licensed company recharges and re-certifies it. The $1,000–$3,000 recharge is usually the smaller loss; a weekend of lost covers is the bigger one. This is why experienced operators treat the semiannual service as cheap insurance, keep spare fusible links on the truck schedule, and call for service the same day anything on the line changes. See the full inspection schedule for how the hood cycle fits the rest of the building, and compare hood suppression companies near you — semiannual route service is the core of what they do.