
Fire Services · Fire Extinguishers
Fire extinguisher service, recharge & hydrostatic testing
NFPA 10 annual maintenance, 6-year internal maintenance, and hydrostatic testing under one accountable team. Fixed-fee multi-extinguisher contracts.
Commercial fire extinguishers in Ontario need monthly visual checks by building staff, annual certified maintenance, internal maintenance every 6 years for stored-pressure types, and hydrostatic testing every 5 years (CO2) or 12 years (dry chemical) under NFPA 10 and the Ontario Fire Code. CAINtech handles annual maintenance, tag updates, recharge, replacement, and hydrostatic testing for commercial buildings across the GTA. Fixed-fee multi-extinguisher contracts available.
NFPA 10
Governing standard
Annual
Tag service
6 yr
Internal maintenance
12 yr
Hydrostatic (dry chem)
Annual Service & Tagging
Multi-Year Maintenance
What is included in annual fire extinguisher service?
Annual certified fire extinguisher service under NFPA 10 covers every portable extinguisher in your building. For each unit, the technician performs:
For stored-pressure extinguishers, the 6-year internal maintenance cycle is performed separately, and hydrostatic testing follows its own schedule.
How often must commercial fire extinguishers be serviced in Ontario?
| Interval | What gets done | Who performs |
|---|---|---|
| Monthly | Visual inspection: gauge in green zone, pull pin in place, no damage, accessibility clear | Building staff |
| Annual | Full certified inspection and tagging | Certified technician |
| 6 years | Internal maintenance for stored-pressure extinguishers | Certified technician, licensed facility |
| 5 years | Hydrostatic testing for CO2 cylinders | Licensed hydrostatic testing facility |
| 12 years | Hydrostatic testing for dry chemical extinguishers | Licensed hydrostatic testing facility |
Missing any of these intervals can put the extinguisher — and your building — out of compliance with the Ontario Fire Code and NFPA 10.
Which standards apply?
This standard applies to the selection, installation, inspection, maintenance, recharging, and testing of portable fire extinguishing equipment.
NFPA 10, Standard for Portable Fire Extinguishers, Section 1.1
NFPA 10 defines selection, installation, inspection, maintenance, recharging, and testing requirements. The Ontario Fire Code (O. Reg. 213/07) adopts and references NFPA 10 for commercial buildings in Ontario. TSSA regulations apply to high-pressure cylinders for hydrostatic testing facility licensing, and CSA standards apply to specific extinguisher types.

What extinguisher classes does my building need?
- Class A: ordinary combustibles such as wood, paper, cloth, and plastics.
- Class B: flammable liquids such as gasoline, oil, and paint thinners.
- Class C: energized electrical equipment.
- Class D: combustible metals such as magnesium, sodium, and lithium, for specialized applications only.
- Class K: commercial cooking fires involving combustible oils and fats.
Most commercial buildings need a mix of Class A and Class ABC multi-purpose extinguishers throughout, with Class K units required specifically in commercial kitchen areas. CAINtech reviews your existing inventory against the hazards present and flags any mismatches or coverage gaps.
How does CAINtech handle deficiencies?
For fire extinguishers, deficiencies are typically resolved during the same service visit or shortly after. A missing or expired tag is replaced on the spot. A low-pressure or out-of-spec unit is swapped for a service loaner, recharged at our facility, and returned. Damaged or expired units are quoted for replacement. A unit that is the wrong class for its hazard is flagged and swapped. Buildings with larger inventories receive a complete inventory list with each annual service, showing the status of every unit and upcoming service intervals.
Why CAINtech
Single vendor for the whole NFPA 10 cycle
Frequently asked questions
How often must commercial fire extinguishers be inspected in Ontario?+
Who is qualified to inspect commercial fire extinguishers?+
What is the difference between annual inspection and 6-year maintenance?+
What is hydrostatic testing and why is it required?+
What happens to my extinguishers during service?+
Can I replace a fire extinguisher myself?+
What is the typical life of a commercial fire extinguisher?+
Does CAINtech provide replacement extinguishers?+
Are commercial fire extinguishers recyclable when they reach end of life?+

Get your extinguisher service quote
Send us your extinguisher count (an estimate is fine) and building address. Fixed-fee annual quote back the same business day. Mon to Fri, 7:00 AM to 3:30 PM.
