Fire, insurance & risk
A disputed claim is where the loss starts, not where it ends. Here is the full stack of costs when a fire follows an uncertified extract system.
The short answer
When a fire follows an uncertified duct and the insurer disputes the claim, the cost is not one number - it is a stack: the rebuild, the lost trade while you are closed, any uninsured shortfall, third-party liability if the fire spreads, higher future premiums, and possible prosecution. Around a quarter of businesses hit by a serious fire never reopen at all.
The direct loss
The average major fire costs a UK business a sum in the region of two-thirds of a million pounds, and building damage is by far the largest component - roughly forty per cent of the total in loss research, with stock, contents and machinery making up much of the rest. When a valid claim pays, the insurer carries that. When the extract-cleaning condition was breached and the claim is refused, the operator carries it instead.
That is the moment the true exposure becomes visible. A business that assumed it was insured discovers it is self-funding a rebuild it never budgeted for - which is precisely why a missing duct certificate is not a paperwork problem but a balance-sheet one.
The loss you don't see coming
Physical damage is repairable; lost trade often is not. Around eighteen per cent of a typical fire loss is business interruption - the weeks, months or in bad cases years of no income while the premises are rebuilt and re-inspected, with wages and rent still falling due. Fire and explosion account for close to sixty per cent of all business-interruption claims. Cash flow collapses even where the physical assets were covered, and where interruption cover is absent - as it frequently is for smaller operators - there is nothing to bridge the gap.
The survival figures follow from that cash-flow reality. Of the businesses that fail to recover within a month of a serious fire, about eighty per cent close for good; a widely cited figure holds that around seventy per cent of firms involved in a major fire either never reopen or fail within three years.
The costs beyond your own walls
If a duct fire spreads to a neighbouring unit, third-party property-damage liability is a separate and often overlooked exposure - your neighbour's losses become your problem. Once non-compliance is on record, future cover gets more expensive or harder to obtain. And where a fire-safety failing contributed to the incident, the Responsible Person can face prosecution under the Regulatory Reform (Fire Safety) Order 2005 and the Health and Safety at Work Act 1974, with fines that are unlimited in the Crown Court. Enforcement is not theoretical - prosecution activity has been rising, and a large share of fire-safety audits still return unsatisfactory findings.
Set against that stack, a scheduled TR19 Grease clean with certification is a rounding error. The certificate is not the cost - it is what keeps the cost off your books.
Questions
Potentially the entire loss. If the claim is disputed for want of TR19 records, the operator can face the rebuild, lost trade during closure, any uninsured shortfall, third-party liability, higher future premiums and possible prosecution - not just the repair bill.
Around a quarter of businesses hit by a serious fire never reopen, and of those that fail to recover within a month, roughly eighty per cent close permanently.
If the policy condition on extract cleaning was breached, the interruption element can be disputed alongside the property damage - leaving lost trade uncovered, which is often what forces closure.
Yes. Where a fire-safety failing contributed to the fire, the Responsible Person can be prosecuted under the Regulatory Reform (Fire Safety) Order 2005 and the Health and Safety at Work Act 1974, with unlimited fines in the Crown Court.
Keep the whole extract system cleaned to TR19 Grease at the interval your use and policy require, and keep dated certificates and post-clean reports on file as proof.
Phoenix Duct Clean · by the numbers
A certified TR19 Grease clean is the cheapest line item on this page. We keep your extract system compliant and your cover intact.