Refilling an extinguisher after use or lost pressure
Any extinguisher that has been discharged needs a refill before it goes back on the wall, even if it was only used for a second. Partial use still counts. Dry chemical powder can lodge in the valve seat, and the unit may then leak down slowly over the next few weeks.
Check the gauge. Red means it needs service.
Most of the calls we get from Barstow are about fire extinguishers. Some callers just want the refill done as soon as possible, while others are working against a date, such as an insurance deadline or a fire department notice asking for code-compliant extinguishers. Tell us the date when you call.
What happens during a refill
The steps are the same for most stored-pressure units.
- The technician checks the cylinder for dents, corrosion and its test dates.
- The valve is emptied and cleaned.
- Worn seals are replaced.
- The cylinder is filled to the agent weight on its label and pressurized with dry nitrogen.
- Then it's leak-checked, weighed, sealed and tagged.
Fire extinguisher recharge in Barstow
Recharge and refill are the same job. Both words mean putting agent and pressure back into a cylinder so it works again. The question Barstow callers actually ask is whether an older unit is worth recharging, or whether to certify or replace it, and the answer depends mostly on the cylinder's age and its last tests.
Here's what to look at:
- Stored-pressure dry chemical units get an internal teardown every 6 years.
- Dry chemical cylinders need a hydrostatic test every 12 years.
- CO2, water and wet chemical (Class K) units need one every 5 years.
A cylinder that's due for its hydrostatic test gets tested before we refill it, and if it fails the test it comes out of service and is replaced with a new unit. See hydrostatic testing in Barstow.
One caller asked whether a $20 store-bought extinguisher was even serviceable. Often it isn't. Many small retail units are labeled non-rechargeable, and once one has been used, the right move is to replace it with a commercial unit that can be serviced.
Prices from Barstow quotes
- Refill: $3.50 per pound in a 2024 quote, or about $17.50 for a 5 lb unit.
- Annual certification: $35 per extinguisher in 2025 and 2026 quotes, and $25 each in a 2025 quote for roughly 15 or more units.
- New extinguisher: $75 per unit in a 2026 quote.
Your total depends on the agent, the cylinder size, how many units you have and whether a 6-year teardown or hydrostatic test is due on any of them. Ask for a current quote.
Who may do the work, and who sets the requirement
In California, extinguisher service must be done by a firm and a technician who are both licensed by the State Fire Marshal under Title 19. Our California work is done by Hedrick Fire Protection, which holds C-16 and C-10 contractor licenses and is State Fire Marshal licensed under Title 19 for portable extinguisher service.
To learn how many extinguishers your building needs and where they should hang, ask the fire marshal at the Barstow Fire Protection District.
Barstow refill questions
Do you service the Barstow area?
Yes. Barstow is one of our listed service areas.
How often does a refilled extinguisher need service?
Check it yourself every month: gauge in the green, pin and seal in place, nothing blocking it. A licensed technician services it once a year and records the visit on the tag, which our Barstow annual extinguisher certification page covers in detail.
We got a fire department notice asking for code-compliant extinguishers. What now?
Read us the items on the notice. We can quote the refills, replacements or new units it asks for.
What extinguisher do offices usually get?
A 5 lb ABC dry chemical unit rated 2-A:10-B:C is a common choice. One Barstow caller asked for exactly that, one upstairs and one downstairs in surface-mount cabinets.
Barstow is on our service area list. Call (909) 219-9411 or email socal@1profire.com.
More for Barstow
Extinguisher refills in other areas
Before you book a refill
Count your units first.
- The number of extinguishers and their sizes
- The agent on each label (ABC dry chemical, CO2, water or Class K)
- Any deadline, notice or inspection date
Related Links
Read the tag before you call
The tag and the label tell us most of what we need. Look for the last service date, the agent and the size.
(909) 219-9411