The vermin exclusion clause
The Insurance Bureau of Canada standard homeowner's policy form includes an exclusion for 'loss or damage caused by vermin, rodents, insects, and birds.' This exclusion is standard across BC home insurers — ICBC (home), Intact, Aviva, Wawanesa, and others all have equivalent language. The legal rationale is that rodent damage is classified as a maintenance failure, not an unforeseeable event. Insurers take the position that structural exclusion is the homeowner's responsibility, and that rodent infestation represents a failure to maintain the property.
Practically, this means: chewed wiring, contaminated insulation, gnawed vapour barriers, damaged HVAC ducts, and structural wood damage from Norway rat burrowing are all excluded from standard home insurance claims. The cost of rodent remediation, insulation replacement, and exclusion work falls entirely on the homeowner. This is a common and painful surprise for homeowners who discover significant attic contamination or wiring damage after an infestation.
The secondary-damage exception
The vermin exclusion covers direct rodent damage. It does not cover all damage that happens to follow from rodents. The key test is whether an insured peril — fire, water damage, structural collapse — was triggered by the rodent damage. If rats chew through an electrical wire and the resulting arc causes a house fire, the fire damage is covered under the fire peril clause. The initial wire damage (direct rodent damage) is excluded, but the fire itself is not. This distinction is important and is why any rodent-chewed wiring discovery should trigger both a pest company call and an electrical inspection — the wiring is not covered, but documented evidence of the wiring condition preserves your fire-peril claim if a fire does occur.
| Damage type | Typically covered? | Notes |
|---|---|---|
| Rodent-chewed wiring | No | Direct vermin damage; excluded |
| Rodent-contaminated attic insulation | No | Maintenance failure; excluded |
| Fire caused by rodent-chewed wiring | Yes (fire peril) | Secondary insured peril; covered subject to deductible |
| Water damage from rodent-chewed pipe | Yes (water peril) | If water damage is sudden and accidental; covered |
| Mould from rodent contamination | No | Maintenance-related; excluded |
| Structural wood damage from rodent burrowing | No | Direct vermin damage; excluded |
| Rodent damage to a vehicle | ICBC: Yes (comprehensive) | Subject to deductible; no vermin exclusion in auto insurance |
What to do before filing a claim
Before contacting your insurer about any damage that may have rodent involvement: have a pest company document the infestation scope (species, duration estimate, areas affected). Have an electrician inspect any wiring in affected areas. Have an insulation contractor assess the contamination and provide a remediation estimate. This documentation creates a clear record of what is rodent-caused (excluded) and what secondary damage may be insured-peril covered.
ICBC and vehicle rodent damage
ICBC's comprehensive coverage (Optional coverage, not mandatory) covers accidental loss or damage to your vehicle — including rodent damage to wiring, hoses, upholstery, and other components. There is no vermin exclusion in ICBC's comprehensive coverage. Subject to your deductible, rodent-chewed engine-bay wiring is a covered loss. Document the damage (photographs), get a repair estimate from a licensed mechanic, and file through ICBC's online claims process. Note that ICBC may send an assessor who will request evidence of the damage cause — a repair shop assessment or pest company confirmation that rodent activity was present is helpful documentation.