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A general liability (GL) policy usually excludes pollution and mold. A shop doing water, mold, abatement, or biohazard work can be fully licensed, fully certified, and still uninsured for the core work it does every day.

A resource from RocketLevel for restoration company owners, backed by decades of experience in the trade. About a 10 minute read.

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Reviewed October 2026. Policy forms and state insurance rules vary. Use this page to know what to ask, then confirm with a licensed agent, your state insurance department or a construction attorney before you rely on it.

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There is a gap in restoration insurance that never shows up on a certificate or at renewal. It shows up on a claim, when it is too late to fix. A standard commercial general liability (CGL) policy, the foundation policy almost every shop carries, is written to exclude pollution, and a separate endorsement on most CGL policies excludes mold and bacteria. That means the exact exposures at the center of restoration work (contaminated water, mold, sewage, asbestos, lead, smoke residue) are the ones the foundation policy is built to push away. A shop can be licensed, certified, and carrying what looks like a full insurance program, and still have no coverage backing the work that pays the bills.

You do not need to become an insurance expert. You need to know enough to have an informed conversation with an agent instead of assuming a policy you bought years ago still fits the work you do now.

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The two exclusions that create the gap

Two standard exclusions on a CGL policy combine to strip coverage from restoration work.

The pollution exclusion. The standard CGL form carries what the industry calls an absolute pollution exclusion, language that removes coverage for bodily injury and property damage arising out of the release, escape, or dispersal of pollutants. According to the International Risk Management Institute (IRMI), virtually all CGL policies contain an absolute pollution exclusion, and a claim tied to a pollution condition may be excluded or denied, leaving the firm to face an uninsured loss. Restoration work is full of conditions an insurer can read as a pollution event: sewage and category 3 water, smoke and soot, fuel and chemical residue, asbestos or lead disturbed during the work.

The fungi or bacteria (mold) exclusion. After a wave of mold claims in 2000 and 2001, carriers added a separate fungi or bacteria exclusion to CGL policies across the board. Writing in Restoration & Remediation Magazine, insurance broker and longtime IICRC committee member David Dybdahl explains that carriers excluded not only claims arising from exposing someone to mold or bacteria, but also claims arising from a job site where mold or bacteria remediation work was taking place. In his reading, the exclusion effectively functions as a "you cannot be in the mold or category 3 water remediation business" clause. Dybdahl estimates that roughly seven in ten restoration firms are sold a general liability policy carrying that mold and effectively category 3 water exclusion, and go to work fundamentally underinsured for the work they do. That is his estimate from trade writing, not a surveyed industry figure, so treat it as a reason to pull your own policy rather than as a statistic to quote.

Put the two together and the policy a restoration owner assumes covers everything carves out water, mold, sewage, and contamination work, the same work the certification on the wall says the shop is qualified to do.

The coverage that fills the gap: pollution and environmental liability

The policy built to cover what CGL excludes goes by a few names. The most common is Contractors Pollution Liability (CPL). Closely related forms are sold as Contractors Environmental Liability (CEL) or Contractors Pollution and Professional Liability. The names vary by carrier; the function is the same: to insure the pollution and environmental exposures the CGL pushes away.

IRMI defines CPL as a contractor-based policy that provides third-party coverage for bodily injury, property damage, cleanup, and related defense costs arising from pollution conditions, whether sudden and accidental or gradual, that come out of the contractor's operations. In plain terms, it is the policy that responds when your work releases or disturbs a contaminant and someone or something is harmed, the claim the CGL is designed to deny.

A few features matter to a restoration owner:

• Mold and microbial coverage is not automatic; confirm it by name. Many CPL and environmental policies cover mold and fungi, but coverage for bacteria and viral matter is often narrower or added only by endorsement. IRMI advises that when a policy covers microbial matter, the policyholder should confirm it covers not just mold, fungi, and mildew but also bacterial and viral matter. Ask your agent to show you the microbial coverage in the policy language, not just describe it.
• Asbestos and lead are often where the surprise claim comes from. Dybdahl notes that a CGL has not covered asbestos claims since the mid 1980s, and that some of the worst restoration claims come from crews disturbing asbestos fibers they did not know were present during an ordinary water or drying job. A properly built environmental policy can cover the release of asbestos, lead, and a broad range of other contaminants that the CGL pollution exclusion removes.
• Watch the "damage to your work" exclusion. Dybdahl flags a common CPL exclusion that bars coverage for damage to the work you performed. On a drying job, where a poorly performed dry-out can grow mold through an entire structure, that exclusion can quietly gut the coverage you bought it for. Some forms drop the exclusion or modify it for restoration work; it is worth asking which form you are being offered.