Hydrostatic Testing in Norco

Is your extinguisher due for a hydro test?

Start with the type. Dry chemical extinguishers, including the familiar ABC units, need a hydrostatic test every 12 years. CO2, water and wet chemical (Class K) extinguishers run on a 5-year clock, so a kitchen line or a CO2-protected equipment room usually reaches its test date long before the units in the front office do. Look for the last test date on the cylinder.

This test is separate from the annual tag. The yearly visit confirms an extinguisher is charged, sealed and ready to use; the hydro test asks a harder question about whether the steel or aluminum shell can still safely hold pressure. Here's how it goes. The unit is emptied, filled with water and pressurized beyond its normal working pressure while the technician watches for leaks, bulges or distortion. Passed cylinders are dried and recharged. Failed ones are condemned. Dry chemical units also get a 6-year internal teardown between hydro tests.

Who checks extinguishers in Norco

Norco has no city fire department. Fire response comes from CAL FIRE/Riverside County Fire Department under contract, and inspections for contract cities like Norco are handled by the county's Office of the County Fire Marshal, which keeps a Norco Eastvale Fire Marshal's Office on Hillside Avenue. Norco's fire code is the 2025 California Fire Code with local amendments. Its Section 906 covers portable extinguishers. Got a correction notice with a deadline? Confirm the date with the fire marshal's office, then call us with the notice in hand.

Kitchens and Class K units

Any kitchen with a hood suppression system also needs a Class K portable extinguisher. Those test every 5 years. Vendors with suppression systems need one too, and finding enough can take planning: when we certified extinguishers for a 60-vendor rodeo event in Norco, Class K units were scarce. For the hood system itself, see kitchen suppression service in Norco.

Test it or replace it?

Sometimes replacing makes more sense. If a cylinder fails, or you'd rather swap out an older small unit, recent Norco quotes have run $45 for a refurbished 5 lb extinguisher that's already certified, $70 for a new ABC unit plus tax, and $285 for a new Class K. Disposal of an expired extinguisher was quoted at $3. Hydro test pricing depends on the type and the count.

Who may do the work

California requires extinguisher service to be done by a firm and technician licensed by the State Fire Marshal under Title 19. Our California work is performed by Hedrick Fire Protection, which holds C-16 (fire protection) and C-10 (electrical) contractor licenses and is State Fire Marshal licensed under Title 19 for portable extinguisher service and water-based system service.

Related Norco pages: annual extinguisher certification, extinguisher refills and general extinguisher service. Outside the city, see hydrostatic testing in Riverside County, San Bernardino County and Orange County, or go back to the Norco service hub.

Hydrostatic testing questions

Is hydro testing included in the annual certification?

No. The annual certification and the hydrostatic test are separate services, and the hydro test only comes due every 5 or 12 years depending on the extinguisher type.

Do Class K extinguishers need hydro testing?

Yes. Wet chemical units are on the 5-year schedule.

What happens if a cylinder fails?

It's condemned. It can't go back into service, so it gets replaced and the old cylinder is disposed of.

Are you licensed for this work in California?

Yes. Hedrick Fire Protection does our California work under a State Fire Marshal Title 19 license for extinguisher service.