Riggers Liability Insurance for HVAC Crane Lifts

Riggers liability insurance covers physical damage to property that belongs to someone else while it's in your care, custody, or control during a hoist, rig, or lift. When an HVAC crew sets a rooftop unit (RTU) with a crane, this coverage pays if the unit is dropped, swung into a parapet, or crushed. Your general liability policy won't touch that claim, because it specifically excludes damage to property you're handling.

The part that trips up most contractors is the crane. Renting one doesn't hand the risk to the crane company. Their policy covers their equipment and their operator, while the unit hanging from the hook stays yours to insure. Below is who owns a dropped-RTU claim, how the operated-versus-bare rental split changes the answer, and the certificate wording that keeps a bad lift from becoming a lawsuit.

What does riggers liability insurance cover?

Riggers liability insurance covers physical damage to property owned by others while you hoist, rig, or lift it. Insurers file the unit dangling from your hook under care custody control equipment, property you are handling but do not own, which a standard general liability policy excludes. So the rooftop unit drops into an uninsured gap the moment your rigging goes taut.

The coverage itself usually lives inside an inland marine policy or rides on your general liability as a buy-back endorsement. IRMI uses that exact setup as its own textbook example, describing a crane that lifts an air-conditioning unit onto a roof. That makes it the crane lift insurance HVAC crews actually need.

Carriers enforce the exclusion. Under the standard ISO general liability form, exclusion j.(4) bars coverage for property in your care, custody, or control. Riggers liability quietly fills that gap, attaching the moment the slings go taut and releasing once the owner signs off on the finished set.

Dropped RTU: the crane company's policy or mine?

The load hanging from the hook is almost always your risk. A crane company's insurance stops at its own iron. It covers the crane, the operator, and the operations that crew runs, and it does not reach across to the rooftop unit they are lifting for you.

A crane rental agreement spells it out: the crane company's coverage handles its own equipment and personnel, while the customer insures the items being lifted. So a dropped RTU is your problem to insure. Renting the crane does not move that exposure onto them. Split a crane accident into three buckets and you can see why each piece lands on a different policy.

• The RTU itself. The unit being hoisted sits in your care, custody, and control, so damage to it is a riggers liability claim on your program.
• Damage to the building or a bystander. If the boom clips a parapet or a load line injures someone, that third-party liability usually falls to the crane company's general liability on an operated rental.
• The crane itself. Physical damage to the machine is the crane company's problem on an operated rental and yours on a bare rental.

Does an operated or bare crane rental shift the risk?

An operated rental keeps the crane, the operator, and the operator's mistakes on the crane company's policy, since they send their own certified operator with the machine. A bare rental is the crane alone: you supply the operator, the rigger, and the signal person, so their negligence and the crane's physical damage both move onto you. Maxim Crane notes that operated rentals usually include the rental company's insurance, while bare rentals push those obligations to the renter.

One catch survives both rental types: the RTU on the hook is your riggers exposure whether the operator wears their shirt or yours. Read the rental contract closely, because many operated agreements name the operator as your "borrowed servant" for the lift, which quietly hands you liability for what that operator does.

How much riggers coverage do I need for an RTU?

Size your riggers liability limit to the replacement value of the most expensive unit you will have on the hook at once. Larger commercial packaged rooftop units commonly run $12,000 to $75,000 each. For custom air handlers or multi-unit sets, a single lift can top $100,000. So a $10,000 riggers sublimit, the kind that comes bundled free with a general liability policy, will not come close to covering one modern RTU.

Say you're setting three 20-ton units at about $60,000 apiece, lifted one at a time. Your exposure per pick is $60,000, so a $50,000 limit leaves you $10,000 short on a total loss. Match the limit to the biggest single moment of exposure, then add margin for the curb, ductwork, and rooftop finishes a falling unit can wreck on the way down.

What should the crane vendor's certificate say?

Before the lift, collect the crane company's certificate of insurance and confirm three things:

• General liability with your company named as an additional insured.
• A waiver of subrogation in your favor.
• On operated jobs, their own riggers liability on the units they hoist.

Additional insured status means their policy defends you when the crane clips the building or a boom swings into finished rooftop equipment. The waiver blocks their insurer from paying a claim and then billing you to get it back.

Handle your side in the same pass. Confirm your program carries a riggers or installation limit that matches your real unit values, and that it applies at the job site, not only in transit. The certificate discipline you'd use for any sub applies here, and our guide to HVAC subcontractor insurance requirements walks the additional insured and waiver wording line by line. On new-construction rooftop sets, the general contractor often demands both from you and the crane vendor.

Coverwatch reviews the crane vendor's certificate and the contractor's own riggers limit together before a lift, so the additional insured wording, the waiver, and the coverage amount all line up. It's part of the flat-fee HVAC contractor insurance review, and the same team runs the broader HVAC company insurance program at renewal.