HVAC Contractors Insurance Requirements in Michigan

HVAC contractors handle refrigerants that are regulated under the EPA's Clean Air Act Section 608. An improper refrigerant release can contaminate indoor air, trigger evacuation of occupied spaces, and result in EPA fines exceeding $44,000 per day. Pollution liability covers cleanup costs, third-party claims, and regulatory defense expenses that standard GL policies typically exclude.

Rooftop HVAC installations involve crane operations, heavy equipment placement, and roof penetrations that can void roofing warranties. Verify the contractor's GL policy does not exclude rooftop work or work above a certain height. Require additional insured coverage that explicitly extends to rooftop operations and any resulting damage to the roofing membrane.

For ongoing maintenance contracts, verify insurance annually at minimum, ideally 30 days before the policy renewal date. Set up automated COI tracking to receive renewal certificates before the existing policy expires. Many property management contracts require contractors to provide 30-day notice of cancellation or non-renewal.

New installations typically require higher coverage limits because they involve more complex work, heavier equipment, and greater potential for property damage. For large installations (chillers, cooling towers, building automation systems), consider requiring $2M/$4M GL limits and a $1M–$2M umbrella policy. Standard maintenance and repair work is generally adequate at $1M/$2M GL.

Michigan Mechanical Board licenses HVAC contractors. Must hold a master mechanical license. Detroit has additional licensing requirements. EPA 608 required for refrigerant handling.

In Michigan, you as the property manager could be held liable for injuries or damages caused by an uninsured hvac contractors on your property. Michigan courts have consistently ruled that property owners have a duty to verify contractor insurance before allowing work to begin.