If a roofing contractor damages rooftop HVAC units during a tear-off, the contractor is generally responsible and their liability insurance should cover repair or replacement. Most damage happens when pry tools or tear-off machines strain refrigerant lines or the metal curb flashing that seals the unit to the roof. Pause work, document everything, and coordinate a joint inspection so cause and scope are clear. Four Seasons Kanga Roof regularly handles flat/TPO and metal roofs with HVAC penetrations across the Detroit area, so we plan tear-offs to protect line sets and curbs before demo begins.
What to do right away:
- Stop work at the area and notify the project manager in writing with photos.
- Keep the unit powered down at the disconnect to avoid compressor damage.
- Request a joint roof/HVAC assessment and temporary weatherproofing around the curb.
- Ask for proof of insurance and put agreed repairs in a signed change order.
Keep serial numbers and service reports together to speed any insurance claim.
Updated: 2026-05-07
Need help in Warren, MI? Call (586) 300-4163 or book online. "The crew did a great job with the tear off and installation of our new roof." — Christian C.