Hot works risk assessment template

A hot works risk assessment identifies what the particular task could ignite, who could be harmed and how the work will be controlled before a tool is switched on. It should consider a safer cold method first. If heat or sparks remain necessary, assess the actual building, materials, equipment, people and neighbouring operations, then decide whether the site's permit-to-work system is needed. A signed permit communicates and authorises conditions; it does not replace the assessment.

This blank template is for people planning and supervising welding, flame cutting, brazing, soldering, grinding, torch-on work and other operations that create flame, heat or sparks. It is a starting form, not an approval to perform hot work. It covers Great Britain and uses HSE guidance. Northern Ireland has separate enforcement and should have its own jurisdiction review. High-hazard plant, tanks, flammable atmospheres, confined spaces and work on occupied or heritage buildings need additional competent assessment and controls; a generic checklist cannot resolve them.

The related hot works permit template records authorisation, validity and hand-back. This page owns the earlier risk-assessment and method-planning task. Do not duplicate the permit form here or treat an issued permit as evidence that all controls exist.

Decide whether hot work is necessary

Begin by describing the outcome, not the tool. Can the component be fabricated elsewhere, removed to a designated safe workshop, mechanically fastened, cut cold or replaced without flame? HSE's fire-safety-in-construction guidance says hot work should be designed out where practicable and cold methods considered, particularly where combustible material is present. The assessment should record why an alternative is unsuitable, who made that decision and what extra controls remain necessary.

Do not assume a cold method is automatically risk-free. Mechanical cutting can create dust, noise, vibration, entanglement or a different spark hazard; adhesives may introduce hazardous substances. Assess the chosen alternative on its own merits. The point is to avoid unnecessary ignition, not to swap one uncontrolled hazard for another.

If hot work is justified, define its boundaries. Which room, side of a wall, floor level, piece of plant and time window? Is the task welding a steel bracket, grinding a pipe, applying a roofing membrane or cutting a tank? These differences change the ignition, fume, fire-spread, atmosphere and isolation questions. A sentence such as “welding on site” is too vague for the people who must set up the work.

Inspect the work area and beyond it

Walk the place with someone who understands its use. Look for packaging, insulation, timber, dust, waste, stored liquids, gases, hidden voids and combustible construction. Heat can conduct through a metal member; sparks can pass through gaps; a fire can start on the far side of a partition or beneath a roof covering. Check the space above, below and beside the work, not just the square metre around the tool. Confirm where people are working, sleeping or passing nearby, and whether escape routes and fire systems will remain effective.

In an occupied building, discuss the work with the building's fire-safety lead. A smoke detector temporarily isolated to avoid nuisance alarms creates a separate impairment that needs authorisation, alternative precautions and restoration. Do not silence an alarm as an informal part of the hot-work task. HSE's construction fire guidance highlights combustible housekeeping, suitable extinguishers, ignition control and watch arrangements. The broader general construction fire page calls for a fire risk assessment and precautions for the actual site.

For vessels, tanks, pipes, confined areas or places with flammable gas/vapour/dust, stop and involve a competent specialist. A drained container may still hold explosive residues. Isolation, cleaning, atmosphere testing, ventilation, rescue and a controlled permit regime may be needed. Do not infer safety from a visual look or an old “gas free” certificate. HSE's permit-to-work guidance stresses clear roles, effective isolations, communication and hand-back; its welding risks guidance flags fire, explosion and asphyxiation.

Assess the whole task, not only fire

Fire and explosion are central, but the risk assessment should also address welding fume, gases, burns, eye injury, electric shock, noise, awkward handling, falls and interaction with others. A flame-resistant glove does not solve fume exposure. A fire extinguisher does not make a confined space safe. Decide controls by the actual process and materials, with separate technical assessments where required.

Check whether the task involves work at height. Can the work be brought to ground level? If not, select appropriate access and prevent falling material; ensure hot metal and sparks cannot fall onto people or combustible stores. Review weather for external work, especially wind carrying sparks or making access unsafe. For roof or façade work, consider combustible layers and cavities that cannot be seen from the surface. For welding, use HSE's process-specific welding guidance when deciding fume controls and protective equipment.

The people exposed may include the operative, fire watcher, other trades, residents, customers, visitors and emergency responders. Note who can see and hear an alarm, the escape route, and who will stop the job if conditions change. If other trades are using solvents, gas cylinders or temporary electrics nearby, coordinate the programme before authorisation.

Blank hot works risk assessment form

Complete this for the actual task. Add rows where the hazards demand them. “N/A” needs a reason. An unknown combustible, atmosphere or isolation state is a stop-work question, not a box to tick later.

Decision: cold alternative / proceed after controls / specialist assessment required / stop. Assessor and date: ____. Supervisor acceptance: ____. Fire or permit controller consulted: ____. Linked permit ID, if used: ____. Briefing record: ____. Review trigger: ____.

Keep a short action log: issue; interim restriction; owner; target; completion evidence; competent verification. If a control is missing, do not mark the overall risk “acceptable” merely because the form has been completed.

Turn the findings into a workable method

Write the sequence in the order people will perform it. A typical sequence might be: obtain building and plant information; agree the work with the controlling person; check a cold alternative; clear or protect combustibles; check the far side of walls and hidden spaces; isolate or test as the hazard requires; set exclusion and ventilation; position suitable fire-fighting means; brief the team; obtain a permit if the site system requires one; carry out the work with a watcher where needed; stop on changed conditions; inspect the area; maintain the assessed post-work watch; restore impaired systems; hand the area back.

That is an illustration, not an automatic method for every job. A tank repair needs far more than a building-maintenance soldering task. Specify what is checked, the criterion for stopping, who has authority to stop and who confirms restoration. If an isolation is part of the safety case, it must remain effective until a competent authorised person releases it. The permit record should refer back to this assessment, and the assessment should identify the permit and any other linked controls.

For fire watch, set a duration and coverage based on the site assessment, fire strategy, construction and insurer/site requirements. HSE's welding risk page advises a watch during and after hot work where combustibles cannot be removed, generally at least 30 minutes after welding, with a longer period where smouldering ignition may be hard to detect. It does not establish one universal 60-minute rule for every hot work task. Decide who will watch, what they will inspect, how they will call for help and when the area can safely be handed back. A watcher who leaves at the tool's switch-off time has not completed a post-work check.

Example: small weld in an occupied workshop

Suppose a contractor is to weld a bracket to a fixed steel frame in a workshop. The first assessment finds cardboard packaging on one side of the frame and an occupied storeroom behind a lightweight partition. The job can be rescheduled until the packaging is removed and the other side inspected. The workshop manager agrees the work window and how occupants will be kept out. The welder checks the metal and adjacent construction, sets suitable local controls for fumes and sparks, confirms electrical equipment and cylinders are safe, and follows the site's permit process. An identified person monitors the work and the agreed post-work period; the manager confirms the area and fire system are back in normal use.

The example should not be copied as a pre-approved set of controls. If the frame connects to a combustible roof void, if a flammable atmosphere is possible or if the storeroom cannot be inspected, the decision changes: stop and obtain a competent assessment before welding. This is the value of a risk assessment over a generic permit with every box pre-ticked.

Review, record and link the right documents

Review the assessment when the work method, location, material, weather, shift, occupancy or nearby activity changes; after an incident or near miss; or when a required control cannot be maintained. Pause work and have the controlling person decide whether the permit must be suspended or reissued. Keep the current version available to the team and brief changes, including the watcher and any adjacent contractor. HSE says method statements are useful for communicating controls and should be clear and no longer than needed for the task.

For the general RAMS format, link to /rams after verifying the site's canonical route. For permit authorisation, link to the existing hot-works permit template and the general permit guide. If the current Complys implementation genuinely supports creating and managing activity assessments or permits, a final CTA may invite the reader to use the verified product route. Do not promise automatic approval, full legal compliance or a live hot-work workflow from marketing copy alone. A competent person still has to assess the physical site and maintain controls during the work.

Source and claim register (writer-side; checked 5 October 2026)