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What is a hot works toolbox talk?
A hot works toolbox talk is a short, task-specific safety briefing delivered before work that could generate enough heat, sparks or flame to start a fire. Examples include welding, flame cutting, soldering, brazing and grinding.
The briefing should explain what work is planned, where it will happen, who could be affected and which precautions must be in place. It should also confirm how the team will raise the alarm, what happens if conditions change and who is responsible for checking the area after work finishes.
A toolbox talk supports the risk assessment, method statement and any required hot-work permit. It does not replace them. For general structure and other topics, see our free toolbox talk templates for UK trades.
Common hazards to discuss
1. Sparks and ignition sources
Identify where sparks, flames, hot particles or heated equipment could ignite nearby materials. Consider areas beyond the immediate work position.
2. Combustible materials
Check surrounding materials, stored products, packaging, dust, insulation and other potential fuel sources. Agree how relevant risks will be removed, isolated or otherwise controlled.
3. Hidden spaces and adjacent areas
Consider whether heat or sparks could travel through openings or affect concealed spaces, the opposite side of a wall or areas above and below the work.
4. Equipment and substances
Confirm that suitable equipment is being used, necessary checks have been completed and any fuel gases, cylinders or hazardous substances are controlled appropriately.
5. People and escape routes
Discuss who else may be affected, the work-area restrictions, fire-alarm arrangements and how emergency access and escape routes will be maintained.
6. Fire watch and checks after work
Confirm who will maintain the required fire watch, which areas need checking and what arrangements apply after hot work ends.
Other risks to consider during hot work
Fire is not the only risk from hot work. Depending on the task, workers may also be exposed to welding fumes, grinding dust, flying particles, burns, electrical hazards, noise or vibration. The task-specific risk assessment and briefing should identify these hazards and confirm suitable controls, including extraction, protective equipment and respiratory protection where required.
What should be checked before hot work starts?
An eight-point checklist to talk through with the team:
- 1.Has the work been assessed, and can a safer method avoid hot work?
- 2.Is the work authorised, including a permit where required?
- 3.Have combustible materials and adjoining areas been assessed?
- 4.Have equipment checks, exposure controls and appropriate protective measures been confirmed?
- 5.Are the work area, nearby workers and escape routes appropriately controlled?
- 6.Are the fire-watch responsibilities and arrangements understood?
- 7.Does everyone know how to raise the alarm and follow the emergency procedure?
- 8.Have the required checks during breaks and after completion been agreed?
The checklist is a briefing aid, not permission to begin hot work. Only start when the necessary risk assessment, site controls and authorisations are in place.
Does a hot works toolbox talk replace a permit?
No. A toolbox talk communicates the agreed working arrangements to the people involved.
A hot-work permit, where required, is a separate formal authorisation process. It identifies the particular activity, location, permitted period, responsible people and precautions that need to be in place before, during and after the work.
Whether a permit is needed depends on the risks, location and applicable site procedures. A toolbox talk should confirm the relevant permit arrangements, not act as a substitute authorisation. The HSE's guidance on fire risks from construction work processes covers hot work in more detail.
Hot works toolbox talk example: metal grinding during refurbishment
The example below illustrates how a supervisor might brief a team carrying out metal grinding during a refurbishment project.
It is fictional and must be adapted to the actual job, risk assessment and site arrangements. It is not a completed hot-work permit or an approved safe system of work.
Task
Cutting or adjusting metal brackets using equipment that generates sparks.
Work environment
A refurbishment site with other trades working nearby.
Hazards to consider
Sparks, hot particles, nearby combustible materials, concealed spaces, equipment condition, people in adjoining areas and the possibility of fire developing after work finishes.
Site-specific arrangements to confirm
Assessment and authorisation, work-area precautions, suitable firefighting provision, emergency procedures, fire-watch arrangements and checks after completion.
Example briefing to deliver to the team
Today we're carrying out metal grinding at [site or work area].
Before starting, we need to confirm that the work has been assessed and authorised, and that the agreed precautions are in place.
We've considered whether the work can be completed without generating heat or sparks. If hot work is necessary, everyone needs to understand the hazards and the controls specified for this location.
That includes checking the surrounding area for combustible materials, considering adjoining and concealed spaces, and confirming the condition and suitability of the equipment.
We must also know who else is working nearby and which parts of the area need to be kept clear.
The required firefighting arrangements, fire watch and checks after the work must be agreed before we begin.
If conditions change, we discover an unexpected hazard or a required precaution is missing, stop the affected work and report it for reassessment.
Everyone must know how to raise the alarm and follow the site's emergency procedure.
Before starting, does everyone understand the controls, the authorisation arrangements and the circumstances that require work to stop?
Questions for the team
- 1.Could this task be carried out without hot work?
- 2.What nearby or concealed materials could catch fire?
- 3.What authorisation and site precautions are required?
- 4.Who is responsible for the fire watch and subsequent checks?
- 5.How will we raise the alarm and what would cause us to stop work?
Answers must reflect the actual site arrangements, risk assessment and any permit — not be assumed from this example.
Example attendance record
An illustrative record format, not an online submission form:
- Site or job reference
- To be completed
- Work location
- To be completed
- Briefing date and time
- To be completed
- Briefing delivered by
- To be completed
- Related RAMS or risk assessment
- To be completed
- Hot-work permit reference, where applicable
- To be completed
- Attendee names
- To be completed
- Confirmation or signatures
- To be completed
- Questions and issues raised
- To be completed
- Follow-up actions
- To be completed
When should the briefing be repeated?
Review or repeat the briefing whenever the work, location, equipment, people or conditions change in a way that affects the agreed precautions.
A different work area or new hot-work permit may require different arrangements. Do not assume that a briefing delivered for one activity authorises subsequent work. Where hot work takes place on a roof, the roofing RAMS guide covers how those risks are typically documented, and our working at height toolbox talk covers the access side.
Keep your toolbox talk records organised
Keep toolbox talks, RAMS and related site documentation together in Graftly, rather than relying on loose paperwork or message threads.
Use Graftly to create and retain toolbox talk records and access supported PDF export and sign-off features. For the wider picture, see our RAMS software for UK trades guide.
Hot Works Toolbox Talk FAQs
What is a hot works toolbox talk?
A short briefing covering the fire and safety risks associated with activities that generate heat, sparks or flame, together with the precautions and emergency arrangements agreed for the job.
Does every hot work task need a permit?
The requirements depend on the site, activity and risks. Formal permit-to-work arrangements are particularly important where hot work presents significant fire or explosion risks. Follow the site's risk assessment and authorisation procedures.
How long should a hot works toolbox talk take?
Long enough for everyone involved to understand the task, hazards, controls and emergency arrangements. There is no universal fixed duration.
What should happen after hot work finishes?
Follow the site-specific arrangements for inspection, fire watch, further checks and permit closure where applicable. Risks may remain after the equipment has been switched off.
Can I use the same briefing on another job?
The structure can be reused, but the content must be reviewed against the actual task, work area, combustible materials, personnel and precautions.
Can I record toolbox talks in Graftly?
Graftly provides toolbox talk and site documentation workflows for UK trades, with supported records, exports and sign-off features.