The Fungus and Bacteria Exclusion
Most commercial general liability and commercial property policies written for habitational risks contain an exclusion for fungi or bacteria. On the liability side it typically removes bodily injury or property damage arising out of the actual, alleged, or threatened inhalation of, ingestion of, contact with, exposure to, existence of, or presence of any fungi or bacteria on or within a building or structure. On the property side it typically removes loss or damage caused by or resulting from fungus, wet rot, dry rot, or bacteria, often with a limited carve back for a stated amount following a covered water loss. Two features of that language deserve attention. First, the words alleged and threatened, which mean the exclusion can be argued to apply to a claim where mold is pleaded even if it is not ultimately proved. Second, the breadth of exposure covered: existence or presence, not just actual physical harm. Limited mold coverage is available in several forms. Property policies sometimes offer a limited fungus coverage endorsement providing a modest amount for remediation following a covered cause of loss, usually with an annual aggregate. Liability coverage is harder, but mold or microbial matter liability coverage exists in the specialty market, written claims made, usually as part of or alongside an environmental or habitational liability product, and often conditioned on documented moisture management practices. The practical point is that an owner who assumes mold is covered because mold was mentioned in a quote should read the endorsement. Limited coverage after a covered water loss is very different from coverage for an infestation that developed over years.
- Liability forms commonly exclude injury from the existence, presence, or alleged presence of fungi or bacteria
- Property forms commonly exclude fungus and rot, sometimes with a small carve back after a covered water loss
- The words alleged and threatened broaden how the exclusion can be applied
- Specialty mold liability coverage exists, is claims made, and is usually conditioned on moisture practices
Bed Bugs, Vermin, and the Pest Problem
Pest related claims are a distinct category and are generally handled worse than mold, because most policies do not contemplate them at all. On the property side, standard forms exclude damage caused by insects, vermin, and rodents, which removes the cost of treatment and the damage to the building from an infestation. On the liability side, pest claims are often argued to be within the general liability coverage grant, since bed bug bites can be bodily injury and damaged tenant belongings can be property damage. Many habitational liability policies now add an exclusion or a sublimit specifically for bed bugs or insects, and that endorsement is one of the first things to look for on a renewal quote. The uninsured piece is usually the biggest: the cost of responding. Treating a building, replacing furniture and mattresses, relocating residents during treatment, lost rent on units taken out of service, and the reputational and leasing consequences are operating costs that no policy reliably pays. Owners who have been through a serious infestation generally conclude that the money is better spent on prevention and rapid response than on seeking coverage. Practical controls matter here more than coverage. A written pest management program with a vendor relationship and defined response times, lease language addressing reporting obligations and cooperation with treatment, documented inspection on turnover, mattress and furniture policies for furnished units, and a protocol for adjacent unit inspection when a report comes in will prevent more loss than any endorsement.
- Property forms exclude insect, vermin, and rodent damage, including treatment cost
- Liability forms increasingly carry a specific bed bug or insect exclusion or sublimit
- Treatment, furniture replacement, relocation, and lost rent are usually uninsured operating costs
- A documented pest management program with defined response times is the real control
Habitability as a Statutory and Contractual Claim
Beyond the injury allegations, habitability claims often include causes of action that are not bodily injury or property damage at all, and those travel differently. Breach of the implied warranty of habitability, breach of the lease, and claims under state and local housing statutes or tenant protection ordinances can produce rent abatement, statutory damages, attorney fee awards, and in some jurisdictions penalties. Those are contractual and statutory remedies rather than tort damages, and general liability policies generally respond to damages because of bodily injury or property damage, not to breach of contract or statutory penalties. Some forms also exclude fines and penalties expressly. The result is a claim with a covered component and an uncovered component, which complicates everything. Defense is often provided because some allegations are potentially covered, but the settlement structure matters, and an owner can end up funding a significant share. Two things help. First, understanding in advance which parts of a typical habitability claim in your jurisdiction are insurable, which is a question for counsel in that state and worth asking before you have a claim. Second, where exposure is concentrated, considering whether the right answer is coverage, higher retentions with better loss control, or both. Owners with large portfolios in jurisdictions with strong tenant protection regimes often conclude that operational investment produces better returns than additional limits.
- Habitability claims often include contract and statutory causes of action, not just tort claims
- General liability responds to damages because of bodily injury or property damage, not breach of contract
- Statutory penalties and fines are frequently excluded expressly
- Mixed claims produce mixed coverage, so settlement structure and defense obligations matter
Documentation That Decides These Claims
Habitability litigation is won and lost on maintenance records, and the question is almost always notice: when did the owner learn of the condition and what did they do about it. The records that matter are the ones a well run property already generates. A work order system that records when a complaint was received, when it was inspected, what was found, what was done, and when it was closed. Photographs before and after repair. Moisture readings where water is involved, which converts an argument into a measurement. Vendor invoices and reports from remediation and pest contractors. Unit inspection records at turnover and on a periodic schedule. Written communication with the tenant, including notices of scheduled entry and documentation of refused access, which is a recurring issue in these cases. Response time is the other variable. A leak reported Monday and repaired Tuesday produces a very different record than one reported Monday, repaired in part Friday, reported again in six weeks, and finally resolved three months later. The second pattern is what produces the claim, and it is visible in the work order history long before the lawsuit arrives. A useful internal exercise: pull every work order at one property for the past year that involved water, mold, or pests, and look at the time from report to resolution and at repeat reports on the same unit. That report is also the one a plaintiff's attorney will request, so it is better to read it first.
- These claims turn on notice: when you knew and what you did
- Work order records with dates, findings, actions, and closure are the central evidence
- Moisture readings turn a dispute into a measurement, and photographs document condition
- Document refused access, which recurs in habitability litigation
Frequently Asked Questions
Related Resources
This article is for general information and is not a substitute for policy language or professional advice.