Do not put a fire extinguisher in an ordinary rubbish bin or skip. Pressurised cylinders can rupture during collection or processing, and some agents require specialist waste treatment. The lawful disposal route depends on the contents, condition, waste classification and location.

This page sets out the right route for disposing of a fire extinguisher in the UK — separately for domestic and business waste, with specific notes on the two categories of unit that need extra attention: halon (banned for general use since 2003) and PFOA-containing foam (banned from 5 July 2025).

Why a fire extinguisher isn't general waste

Three reasons together.

Pressure

A fully-charged extinguisher contains its agent under pressure (typically 12-15 bar for stored-pressure water, foam and powder; up to 60 bar for CO2). A waste compactor that crushes the cylinder produces an explosion — fragments, projectile valves, and a sudden release of agent and propellant. Workers have been seriously injured by this in UK waste facilities; the disposal route has to ensure the unit is depressurised and dismantled safely, not crushed.

Chemistry

Some legacy foams contain regulated persistent organic pollutants, including PFOS or PFOA. Manufacture date or an AFFF/C6 label alone does not determine compliance or waste classification. Halon has separate ozone-depleting-substance controls; identify the agent before arranging treatment.

Documentation

Business hazardous-waste movements generally require consignment documentation, with differences between UK nations. Household movements to an initial collection point have exemptions. The waste contractor should identify the classification and required records.

Domestic disposal — taking it to the HWRC

For a private household with one or two old extinguishers — typically a unit that came with the property, a unit that has expired, or a unit that has been partially discharged — the standard route is the local Household Waste Recycling Centre (HWRC), sometimes still called “the tip” or “the dump.”

Acceptance varies between councils and facilities. Contact the council before travelling and identify the type, condition and number of extinguishers; do not assume a recycling centre will take them.

Practical points:

  • Phone ahead or check the council website. Not every HWRC accepts extinguishers, and some only accept them on certain days. A short check saves a wasted trip.
  • Identify the type. If you don't know what the extinguisher contains (foam, water, CO2, powder, halon), the HWRC staff may need to ask before accepting it. The label will tell you most of what's needed.
  • Halon is different. A green-bodied halon extinguisher is not normally acceptable at a local HWRC. Halon disposal goes through a specialist contractor (see below).
  • Bring identification if asked. Some HWRCs check residency to ensure they're handling household rather than commercial waste.
  • Don't try to discharge it first. Discharging a foam or powder extinguisher into the garden or down a drain is not the right answer; the agent is what makes the unit hazardous, and discharging spreads it rather than disposing of it. Leave depressurisation to the receiving facility or a competent contractor.

For the council's specific guidance, search “fire extinguisher disposal [your local authority]” or check the Recycle Now website (an official UK recycling guidance service operated by WRAP).

Business disposal — Duty of Care and licensed waste carriers

For a business — any premises covered by the Regulatory Reform (Fire Safety) Order 2005 — the picture is different. Businesses must not use a household-only service for commercial waste; some sites offer a separate authorised trade-waste service, and fire extinguisher disposal is subject to the Duty of Care under section 34 of the Environmental Protection Act 1990 plus the Hazardous Waste Regulations 2005 (in England and Wales; equivalent regulations apply in Scotland and Northern Ireland).

The Duty of Care requires a business to:

  • Use a licensed waste carrier registered with the relevant environment agency (Environment Agency in England, Natural Resources Wales, SEPA in Scotland, NIEA in Northern Ireland).
  • Document the transfer with a Waste Transfer Note (for general business waste) or a Hazardous Waste Consignment Note (for waste classified as hazardous).
  • Ensure the waste reaches an authorised disposal facility — the carrier should be able to provide evidence of where the waste went.
  • Retain the documentation for at least two years (Waste Transfer Note) or three years (Hazardous Waste Consignment Note).

For most businesses, the easiest disposal route is through the fire extinguisher servicing contractor. A BAFE SP101-registered firm carrying out an annual service or extended service is well placed to take old units away at the same time, with the necessary documentation built into the service contract. Confirm acceptance, charges, waste-carrier registration and documentation in advance.

Alternative routes — using a separate hazardous waste contractor, returning units to the manufacturer, or arranging disposal through the building's general waste contractor (if licensed for hazardous waste) — all work, but each requires the documentation to be set up explicitly.

Halon and BCF — specialist disposal only

Halon (sometimes called BCF, for Bromochlorodifluoromethane, or Halon 1211) was banned for general use in the UK in 2003 under the implementation of the Montreal Protocol. Halon depletes the ozone layer significantly more than other refrigerant gases, and its production was phased out internationally.

A halon extinguisher should not be:

  • Put in general waste.
  • Taken to a local HWRC (most do not accept halon).
  • Discharged to atmosphere (this is illegal under ozone-depleting substances regulations).
  • Returned to general use (other than in the very narrow critical-use exemptions for aviation and certain military applications).

The right disposal route for halon is:

  • Return to the manufacturer or original supplier. Most major UK extinguisher manufacturers operate take-back schemes for halon.
  • Specialist halon disposal contractor. Several UK firms specialise in recovering halon for destruction or, where critical-use exemption applies, recycling for those specific applications.
  • Through a BAFE SP101-registered fire safety contractor. If you have an annual servicing arrangement, the contractor will normally arrange halon disposal as part of the service.

The disposal process for halon involves recovery of the agent under controlled conditions, with the agent either destroyed by high-temperature thermal oxidation or — for critical-use exempt applications — purified and stored. A halon recovery certificate should be provided as documentation.

PFOA foam — high-temperature incineration

The end of the specified PFOA use exemption that took effect on 5 July 2025 introduced a specific disposal challenge. Foam extinguishers containing PFOA-based AFFF must be removed from service, and the agent itself is now classified as a persistent organic pollutant (POP) requiring high-temperature destruction.

For a UK premises with PFOA-containing foam:

  • Affected units must be removed from operational use. Storage pending compliant disposal must meet the relevant waste and POPs requirements; it is not the same as retaining equipment for firefighting use.
  • Disposal must go through a licensed hazardous waste contractor with the capability to direct the waste to a high-temperature incineration facility — typically a specialist facility licensed for POPs destruction.
  • Documentation under the Hazardous Waste Regulations applies. The Hazardous Waste Consignment Note should specify the foam chemistry and the destruction method.
  • Changing the liquid alone does not establish compliance. Any proposed decontamination and reuse needs competent assessment of contamination limits, approved agents and fire-rating validity; otherwise arrange replacement.

The cost of disposing of PFOA foam properly is meaningfully higher than for conventional disposal — high-temperature destruction is a specialised process. For premises with significant numbers of legacy AFFF units, planning the transition to fluorine-free foam is best done through the servicing contractor, with the disposal cost factored in as part of the changeover. The wider context on the foam regulatory situation is on our foam fire extinguisher page.

Documentation — Waste Transfer Note, Consignment Note, EWC codes

For business disposal, the documentation matters as much as the physical disposal. A few specifics worth knowing.

Waste Transfer Note (WTN)

Required for non-hazardous business waste transfers under section 34 of the Environmental Protection Act 1990. The WTN records who produced the waste, who transported it, what the waste was, and where it went. WTNs must be retained for at least two years.

Hazardous Waste Consignment Note (HWCN)

For waste classified as hazardous, use the consignment documentation required in the relevant UK nation. In England, producers generally retain consignment records for three years. Pressure alone does not automatically make every extinguisher hazardous waste; classification depends on the waste and its contents.

European Waste Catalogue (EWC) codes

UK hazardous waste documentation uses EWC codes to identify waste streams. Common codes for fire extinguisher disposal include 16 05 04* (gases in pressure containers containing hazardous substances) and 16 05 05 (gases in pressure containers other than those mentioned in 16 05 04). PFOS and PFOA-containing foams typically attract additional POPs-related codes. The contractor should specify the correct codes; the responsible person should check the documentation matches what was actually disposed of.

Environment Agency registration

The waste carrier must be registered with the Environment Agency (or the equivalent in Wales, Scotland, Northern Ireland). The carrier's registration number should appear on the WTN or HWCN. A search on the Environment Agency's public register confirms the registration.

A premises that retains all WTN/HWCN documentation alongside its fire logbook is well placed to demonstrate Duty of Care compliance during any inspection or investigation.

Depressurisation — leave it to a competent operator

Do not attempt to empty, dismantle or puncture an extinguisher as a DIY disposal step. Tell the receiving facility whether it has been used and follow its acceptance instructions.

Water extinguishers

Even a unit labelled water may contain additives. Leave controlled discharge and verification of depressurisation to a competent operator; do not release contents to drains or soil without an authorised disposal arrangement.

CO2 extinguishers

CO2 cylinders can remain hazardous after apparent discharge. Cold burns, gas exposure and residual pressure require competent handling. Arrange collection or delivery to an authorised facility rather than attempting to prepare it as scrap yourself.

For all other types — foam, dry powder, wet chemical — DIY discharge is not the right answer. Foam and powder spread the agent into the environment in ways that are not appropriate for disposal; wet chemical involves alkaline chemicals that should not be released to drains or ground. Use a licensed contractor for these.

What it costs

For a domestic disposal at an HWRC, the cost is normally zero (households pay for HWRC services through council tax). For a business disposal, the cost varies:

  • A few extinguishers as part of an annual service. Often included in the servicing contract or charged at a small per-unit fee.
  • A larger consignment (10-50 units) at site clearance. Typically arranged as a one-off collection by a hazardous waste contractor, with cost driven by the type of agent and the volume.
  • PFOA-containing foam. Higher cost than conventional disposal because of the high-temperature incineration requirement.
  • Halon. Higher cost than conventional disposal because of the specialist recovery requirement; some manufacturers operate free or subsidised take-back to encourage compliance.

For most UK premises, building disposal cost into the servicing contract from the outset is the simplest commercial arrangement. The contractor knows the units, the documentation can be agreed in advance, and the costs are predictable.

Servicing engineers as the easiest route for businesses

Worth restating because it is the simplest answer for most readers: if you have a BAFE SP101-registered servicing contractor, ask whether they can arrange compliant disposal as part of the service relationship. The technician who removes a unit from service at the annual visit takes it away with the necessary documentation, processes it through a licensed disposal route, and provides the WTN or HWCN as part of the service report.

This is the right answer for most businesses because it removes the burden of arranging disposal separately, and it integrates the disposal documentation into the same audit trail as the rest of the maintenance regime. The detail on contractor selection is on our fire extinguisher servicing and inspection page.

Frequently asked questions

Can I throw a fire extinguisher in the bin?

No. Fire extinguishers are pressure vessels containing potentially hazardous chemicals; they cannot go in general or recycling waste. Domestic units go to a Household Waste Recycling Centre; business units go via a licensed waste carrier with a Waste Transfer Note or Hazardous Waste Consignment Note.

Where can I take an old fire extinguisher?

For a household, the local HWRC (“the tip”). Phone ahead or check the council website to confirm acceptance. For a business, through a licensed waste carrier — most easily, your fire safety servicing contractor.

Can I dispose of a halon extinguisher at the council tip?

Usually not — most local HWRCs do not accept halon because the disposal regime is different. Halon disposal goes through the manufacturer's take-back scheme, a specialist halon recovery contractor, or a BAFE-registered servicing firm.

How do I get rid of a foam extinguisher with PFOA?

Through a licensed hazardous waste contractor that can route the unit to a high-temperature incineration facility for POPs destruction. The contractor provides the Hazardous Waste Consignment Note. PFOA-containing foam cannot be put in general waste, cannot be discharged, and cannot be made compliant merely by changing the liquid; any reuse requires a verified decontamination and compatibility process.

What's a Waste Transfer Note?

A document required for business waste transfers under the Environmental Protection Act 1990, section 34. The WTN records the waste, the carrier, and the disposal destination. Where an extinguisher is classified as hazardous waste, the relevant document is the Hazardous Waste Consignment Note, with stricter retention and content requirements.

Where this connects

For end-of-life timing — when an extinguisher needs disposing of versus being maintained for further service — see our fire extinguisher servicing and inspection page. For the foam-specific PFOA context, see our foam fire extinguisher page. For the wider regulatory framework, see who is responsible for fire extinguishers in UK workplaces. For the wider type and colour system, the fire extinguisher types hub is the place to start.

If you are setting up fire safety in a UK workplace and need to train your team on the basics, the online fire safety awareness training course covers what every employee needs in 90 minutes — RoSPA-approved and CPD-accredited.

Sources & references

Official guidance and standards checked on 15 October 2026.

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Mark McShane
Mark McShane
Health & Safety Training Specialist, Online CPD Academy

Mark writes about workplace health & safety, fire safety awareness and accredited online training for Fire Safety Awareness Training, part of Online CPD Academy.