Every policy has its limits – the right question isn't whether exclusions exist, but whether we know them. This article organises the typical exclusions of commercial property insurance into a map: what the insurer won't cover and why, and what can still be handled.
- Three big families of exclusions: the duty-of-care group, gradual damage, and systemic risks.
- Many "exclusions" are actually grey areas: a different product covers them (liability, construction, vehicle, cargo).
- Some exclusions can be solved with an add-on, others prevented through care.
First family: the duty-of-care group
Insurance is for the unexpected – not for maintenance you skipped. Typically excluded or disputable: stock under a roof that's been leaking for a long time, a frozen, uninsulated pipe, damage arising from an electrical inspection that's been overdue for years. The same group includes burglary damage to a site left open and unguarded, if the security level committed to in the policy didn't actually work. These can also be read as good news: this group is in the company's own hands.
It's good practice to translate the exclusion list onto your own premises: which item is a live risk for us? For a company with a warehouse, roof maintenance will be the critical line; for one with a cellar store, groundwater; for a machinery-heavy one, the wear-and-tear boundary. This translation takes ten minutes – and shows exactly where care is needed, where an add-on is, and where the base cover is enough.
Second family: the gradual and the natural
Slowly developing damage – corrosion, mould, dampness caused by groundwater, wear – isn't an insured event: it lacks the element of the unexpected. The natural wear of machinery is likewise not a loss but a cost; the article on machinery breakdown covers this boundary. As a rule of thumb: anything that happens at a single identifiable moment can be insured; anything that happens over months, unnoticed, typically cannot.
Third family: the systemic
War, defined categories of terrorism, and nuclear risk – these are the insurance market's classic exclusions, spanning every product. Intentional or grossly negligent damage by the policyholder or the insured is a different category: there, the insured event does occur, but the insurer may be relieved of its obligation to pay – and the burden of proving that lies with the insurer. The special treatment of flood exposure also belongs here: flood and inland inundation, honestly.
And what isn't an exclusion, but a grey area
Damage caused to others isn't an exclusion, it's a different product: liability insurance – on this boundary: own damage vs. damage caused to others. Risk during construction belongs to construction all-risks insurance, vehicles to fleet cover, and goods on the road to the world of cargo. Knowing this map is worth a lot, because only someone who looks at the whole picture together can see the gaps – which is exactly the purpose of the site survey.
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