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How long does an assessment take?

A fire risk assessment of a small, simple premises takes one to two hours on site; a typical HMO or small commercial unit two to three hours; a large or complex building half a day to several days. The written report follows within two to five working days for most premises. Total elapsed time from instruction to report is typically under two weeks — faster where the booking is urgent.

Updated 9 July 2026 · England & Wales · Regulatory Reform (Fire Safety) Order 2005

On-site time by premises type.

PremisesTypical site timeReport turnaround
Small shop or office (under ~200m²)1–2 hours2–3 working days
Shared-house HMO (2–3 storeys)1.5–3 hours2–4 working days
Block of flats — common parts (Type 1)2–4 hours3–5 working days
Restaurant, pub or guest house2–4 hours3–5 working days
Warehouse / industrial unitHalf day5 working days
Care home, school, hotelHalf day – full day5–10 working days
Large multi-building estateMultiple days, phasedAgreed programme

What consumes the time

The walk-through itself is only part of the visit. A competent assessor also reviews documentation (alarm and lighting certificates, service records, training logs, the previous assessment), interviews the responsible person or manager on procedures, and tests knowledge of the evacuation strategy. Sleeping-risk premises take longer because escape provision must be examined room-type by room-type, and night-time staffing scenarios assessed. See what the assessor checks for the full inspection scope.

How to shorten the visit

Elapsed time, instruction to compliance.

  1. Instruction to site visit: typically 3–10 working days; urgent bookings (enforcement deadlines, licence renewals, completions) can usually be accommodated within 48–72 hours. Through FireCertificates, an assessor is confirmed within 24 hours of enquiry.
  2. Site visit: per the table above.
  3. Report delivery: 2–10 working days, scaled to complexity — see what the report contains.
  4. Action plan implementation: the schedule the report sets — high-priority items in days, capital works over months. Compliance is achieved by progressing the plan, not by holding the report.
Key fact: Beware assessments quoted at implausibly short durations for the premises type. A "45-minute" assessment of a three-storey HMO cannot examine what LACORS-based standards require — and a document produced from it is unlikely to survive audit.

Common questions.

Can a fire risk assessment be done in one visit?
Almost always, provided access is arranged to all areas. Return visits are usually caused by locked plant rooms, missing documentation or inaccessible roof voids — all avoidable with preparation.
How quickly can I get an assessment if I have an enforcement deadline?
Urgent instructions are routinely turned around within days: assessor confirmed in 24 hours, site visit within 48–72 hours, and a prioritised report focused on the notice items. Tell the assessor about the notice at booking.
Does the business need to close during the assessment?
No. Assessments are conducted around normal operations — and observing the premises in use (occupancy levels, storage practice, door wedging) is part of the assessment's value.
How long after the visit do I get the report?
Two to five working days for most premises; longer for large or complex buildings. Significant life-safety findings should be communicated verbally on the day, not held for the written report.

Related guides

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