All perils insurance is a form of property coverage that protects against any cause of loss except those the policy explicitly excludes. This structure reverses how coverage works compared to a named perils policy, where you are only protected if the specific cause of your loss appears on a list of covered events. Under all perils coverage, you start from a position of coverage and work backward through the exclusions to see if anything takes that coverage away.
The distinction matters more than it might first appear. With named perils coverage, the insured bears the burden of proving that whatever damaged their property falls within one of the listed causes — fire, lightning, explosion, vandalism, and so on. If the cause is ambiguous or falls between listed perils, the insurer can deny coverage. All perils coverage shifts that dynamic. The insurer must point to a specific exclusion in the policy language to decline a claim. When the cause of loss is unclear or genuinely unusual, the all perils structure tends to favour the policyholder because uncertainty about the cause does not automatically defeat coverage.
Reading your policy's perils clause requires attention to both what the policy says it covers and what the exclusions remove. In Alberta, commercial property policies often use the phrase "all risks of direct physical loss or damage" or similar language to signal all perils coverage, but the operative terms vary by insurer. The exclusions section is where the real limitations live. Common exclusions across most commercial all perils policies include wear and tear, gradual deterioration, inherent vice, contamination by pollutants, earth movement, flood, and intentional acts by the insured. Some policies exclude loss caused by faulty workmanship or design defects, though resulting damage from an otherwise covered peril may still be covered depending on policy wording and provincial case law interpreting ensuing loss clauses.
Business owners sometimes assume that all perils coverage means everything is covered, which leads to unpleasant surprises when a claim falls into an exclusion. Flood coverage, for instance, is frequently excluded from standard commercial property policies and must be purchased as an endorsement or separate policy. The same is true for earthquake coverage in many regions. Understanding which perils your policy actually excludes — and whether endorsements are available to add them back — is part of the work of managing risk before a loss occurs rather than discovering the gap afterward.
When a loss does occur, the structure of your perils coverage affects how you present your claim. Under all perils coverage, you need to establish that you suffered a direct physical loss, that the property was covered under the policy, and that the loss occurred during the policy period. You do not need to prove the precise cause fits a named category, but you should still document the circumstances thoroughly. Insurers investigating all perils claims will look for evidence that an exclusion applies, and the quality of your documentation can determine whether an ambiguous situation resolves in your favour.
The difference between all perils and named perils coverage is one of the foundational distinctions in property insurance, and understanding it helps business owners evaluate both the policies they purchase and the claims they file. If the mechanics of policy structure and claims documentation interest you, Binder University explores these subjects in more depth. We would welcome your thoughts or questions in the comments below.