Exclusions Decoded
Does General Liability Cover Mold, Asbestos, or Lead?
No — standard contractor general liability policies exclude mold, asbestos, and lead. Coverage requires a separate Contractor’s Pollution Liability (CPL) policy or specific endorsements, especially for trades involved in remediation, demo, or older buildings.
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Why Mold, Asbestos, and Lead Are Excluded From Standard GL
Every standard contractor GL policy issued in the United States includes a near-blanket pollution exclusion that wipes out coverage for bodily injury or property damage arising from the actual, alleged, or threatened release of pollutants. Carriers added these exclusions in the 1980s after a wave of asbestos and environmental claims threatened to bankrupt the industry, and they have only grown broader since. Learn more about general liability insurance for contractors or scroll down for the details on this question.
Under the standard pollution exclusion, ‘pollutant’ is defined extremely broadly — any solid, liquid, gaseous, or thermal irritant or contaminant, including smoke, vapor, fumes, soot, chemicals, and waste. Courts have consistently held that mold spores, asbestos fibers, and lead dust all qualify. So when a homeowner sues you over a mold bloom in a basement you renovated, an asbestos abatement that released fibers, or a lead-paint disturbance during a window replacement on a pre-1978 home, the standard GL policy will deny the claim citing the pollution exclusion.
This is one of the biggest coverage gaps in contractor insurance, and it routinely surprises contractors who assumed their GL would respond. Trades most at risk include: remodelers working on pre-1978 housing (federal RRP rule applies, and lead claims are real), abatement and demolition contractors, restoration contractors, HVAC contractors disturbing duct contamination, plumbers cutting into old pipes, and general contractors of any kind doing basement work where moisture problems can spawn mold claims.
The fix is Contractor’s Pollution Liability (CPL), a specialty policy specifically written to fill the pollution gap. CPL covers bodily injury, property damage, and clean-up costs arising from pollution conditions caused by your operations — including mold, asbestos, lead, fuel spills, and chemical releases. Annual premiums for small contractors typically start at $1,500–$3,000 for $1M limits and scale with payroll, gross receipts, and the trades you perform.
Some carriers also offer a limited mold or contractor pollution endorsement that can be added to the GL policy. These endorsements usually carry low sub-limits ($25K–$100K) and significant exclusions of their own, so they should be viewed as a starting point, not a full solution. If your work routinely involves remediation, demolition, or older buildings, a standalone CPL is the right answer.
If You Touch Old Buildings, You Need CPL
Any contractor working on housing built before 1978 (lead), commercial buildings built before 1980 (asbestos), or anywhere moisture is present (mold) has a pollution exposure that GL will not cover. Trade Safe can pair a CPL policy with your GL in a single application.
Which Trades Need Contractor’s Pollution Liability
These are the trades where a CPL policy is not optional — it is the difference between ‘sued and covered’ and ‘sued and broke.’
Abatement & Demolition
Asbestos and lead claims are guaranteed at some point. Bonding companies and GCs will not even bid these trades without CPL evidence.
Restoration Contractors
Water, fire, mold — every job has a pollution exposure. CPL is the foundation of the trade, even before GL.
Remodelers on Pre-1978 Homes
Federal RRP rules apply. One disturbed lead-paint surface can become a six-figure claim from a family with young kids.
HVAC & Plumbing
Duct contamination, refrigerant leaks, sewage backup — all classic CPL claims that the GL will deny.
Why Contractors Trust Trade Safe
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