Short answer: only when the mould is the consequence of an insured peril. Mould as a primary peril is excluded on almost every Irish home insurance policy. Mould caused by a covered escape of water, a roof leak, or a flood is claimable as part of that primary peril. The distinction matters and the insurer will lean hard on the wrong side of it.
The trigger event matters more than the mould
An insurance claim for mould succeeds or fails based on what caused the moisture in the first place. If the moisture came from a discrete insured event (a burst pipe, a roof leak, a flood) the resulting mould remediation is part of the claim. If the moisture came from condensation, poor ventilation, or gradual deterioration the insurer will decline.
This is why mould claims are particularly contested. Insurers default to “condensation” as the cause; policyholders need to evidence the trigger event clearly. We carry that evidencing case for clients on every mould damage claim we handle.
What an insurer typically pays for
Where the trigger event is accepted, the cover should pay for:
- Specialist mould-and-damp survey
- Removal of contaminated plasterwork
- Treatment of structural timbers
- Replacement of insulation
- Deep-cleaning of soft furnishings, carpets, curtains
- Redecoration after the moisture source is fixed
- Alternative accommodation if the property is uninhabitable
What insurers typically exclude
Three exclusions catch most mould claims:
- Condensation. Mould caused by inadequate ventilation, behavioural factors, or insufficient heating is excluded.
- Gradually operating cause. A leak that the policyholder noticed and ignored for months.
- Pre-existing damage. Mould that was present before the policy started.
Each of these is contestable where the evidence supports an insured cause. None are automatic refusals.
The hidden leak scenario
The most common mould claim we see in Ireland: a slow leak under a solid floor or behind a wall, undetected for weeks or months, eventually visible as mould on a wall surface. The claim engages trace and access cover (to find the leak), escape of water cover (to repair the damage), and the consequential mould remediation. We handle the three together as one integrated claim. See hidden water leak claims.
When to call a loss assessor
If mould has appeared in your home and you suspect a hidden leak or a discrete water event was the trigger, ring before you bring in a remediation contractor. The order of operations affects the cover. Document the symptom, notify the insurer, then proceed.
The honest summary
Mould is rarely covered as a stand-alone problem. Mould as the consequence of a discrete water-related insured event almost always is. The work is in getting the cause right, evidencing it, and presenting the claim under the correct peril.
Written by the team at N.J. Carroll & Associates, insurance loss assessors and quantity surveyors, established 1988.
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