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

NFPA 10 annual inspection with new technician-stamped tag
Pressure gauge, pull-pin, tamper seal, and hose-condition verification
Hazard-class matching: Class A / B / C / D / K
Weight verification on every stored-pressure cylinder
Inventory list per visit (location, type, service due date)
Same-visit recharge where pressure low and parts in stock

Multi-Year Maintenance

6-year internal maintenance on stored-pressure extinguishers
12-year hydrostatic testing on dry chemical cylinders
5-year hydrostatic testing on CO2 cylinders
Service-loaner swap during off-site cylinder work
Replacement quote when hydrostatic test fails
End-of-life disposal through licensed waste handlers

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:

01
InspectionVisual check of pressure gauge, pull-pin condition, tamper seal, nozzle and hose condition, mounting bracket, accessibility, and signage.
02
VerificationConfirmation that the extinguisher matches the hazard it protects. Mismatched units are flagged for replacement.
03
Tag updateNew annual inspection tag with the technician certification number, inspection date, and next service due date.
04
Weight verificationCylinders weighed to confirm charge is within manufacturer tolerance.
05
Hose and nozzle testConnections checked for cracks, corrosion, or blockage.
06
DocumentationEach unit recorded in the building extinguisher inventory with location, type, service dates, and any flagged issues.

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?

IntervalWhat gets doneWho performs
MonthlyVisual inspection: gauge in green zone, pull pin in place, no damage, accessibility clearBuilding staff
AnnualFull certified inspection and taggingCertified technician
6 yearsInternal maintenance for stored-pressure extinguishersCertified technician, licensed facility
5 yearsHydrostatic testing for CO2 cylindersLicensed hydrostatic testing facility
12 yearsHydrostatic testing for dry chemical extinguishersLicensed 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.

Fire extinguisher inspection close-up

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

Single-vendor coverage across tagging, recharge, 6-year maintenance, and hydrostatic testing.
Inventory tracking that survives staff turnover — new facility managers inherit a clean record.
One accountable team across every fire system in your building.

Frequently asked questions

How often must commercial fire extinguishers be inspected in Ontario?+
Monthly visual inspection by building staff, annual certified inspection by a qualified technician, 6-year internal maintenance for stored-pressure extinguishers, and hydrostatic testing every 5 years for CO2 or 12 years for dry chemical, under NFPA 10 and the Ontario Fire Code.
Who is qualified to inspect commercial fire extinguishers?+
Annual inspections must be performed by a certified technician working from a licensed facility. CAINtech technicians are qualified and our facility is licensed for NFPA 10 service.
What is the difference between annual inspection and 6-year maintenance?+
Annual inspection is an external check of pressure, weight, condition, and tag. 6-year maintenance is an internal examination of stored-pressure extinguishers, which requires depressurizing the cylinder and inspecting the inside for corrosion or component wear.
What is hydrostatic testing and why is it required?+
Hydrostatic testing pressurizes the cylinder with water to verify it can safely contain the design pressure. It is mandatory at intervals defined by NFPA 10 because cylinders can develop corrosion or fatigue over time that is not visible from outside.
What happens to my extinguishers during service?+
Extinguishers needing recharge, internal maintenance, or hydrostatic testing are removed and replaced with service loaners so your building maintains coverage. The original units return to site after service at our facility.
Can I replace a fire extinguisher myself?+
Mounting a new unit is straightforward, but the unit needs to be the correct class and rating for the hazard, and the location needs to comply with NFPA 10 spacing and accessibility requirements. We recommend an initial consultation with a certified technician before swapping units yourself.
What is the typical life of a commercial fire extinguisher?+
A well-maintained dry chemical extinguisher typically lasts 12 to 15 years before replacement becomes more economical than continued service. CO2 extinguishers can last longer with proper hydrostatic testing.
Does CAINtech provide replacement extinguishers?+
Yes. We carry common extinguisher types in stock and can supply replacements during the service visit. For specialized applications such as Class K kitchen or clean agent units, we order to specification.
Are commercial fire extinguishers recyclable when they reach end of life?+
Yes. Steel cylinders are recyclable, and dry chemical contents are disposed of through licensed waste handlers. CAINtech handles end-of-life disposal as part of the replacement service.

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.