How Much Umbrella Coverage Does a $10M HVAC Company Need?

An established HVAC company doing around $10 million in revenue usually needs $5 million to $10 million in umbrella coverage, stacked over a $1M/$2M primary liability policy. How much umbrella insurance a business carries has less to do with revenue than with two things: the limits your contracts demand, and the size of your service fleet. This guide sizes the limit for a $5M, $10M, and $25M HVAC company, and shows what each layer of coverage costs.

How much umbrella coverage does a $10M HVAC company need?

Most HVAC companies at roughly $10 million in revenue carry a $5 million to $10 million commercial umbrella above their general liability, commercial auto, and employers liability. The right number is the highest limit any single contract requires, sized against how bad a fleet accident could get.

A commercial umbrella adds liability limit on top of the policies you already carry, and it pays only after one of those underlying policies hits its cap. Commercial umbrella coverage sits over your primary lines and requires each of them to carry set minimum limits first. General liability at $1M per occurrence and $2M aggregate plus a $5M umbrella gives a company $6 million of total limit before a covered claim reaches its own bank account. That underlying stack is why umbrella limit is only real if the policies beneath it hold their required limits. Keeping those minimums current at every renewal is the job of the wider HVAC insurance program.

What drives the limit: contracts and fleet, not revenue

Two forces set an HVAC company's umbrella limit: the liability limits written into its contracts, and the crash exposure of its trucks. General contractors and owners commonly require $5 million to $10 million before a sub can mobilize, and a serious fleet accident is the loss most likely to blow past a $1 million primary limit.

The requirement reaches you through the contract chain. An owner names a limit in the prime contract, and the general contractor copies it into your subcontract. Your certificate then has to show the umbrella before you start, the same paperwork behind meeting a $5 million umbrella bid requirement.

Fleet severity is the other driver. A tech at fault in a multi-vehicle injury crash can generate a claim in the millions, which is exactly what an at-fault fleet accident can cost. Construction and engineering firms absorbed $2 billion in nuclear-verdict awards in 2024, part of a record $31.3 billion across all industries, according to Marathon Strategies. Owners size their limits to that kind of exposure, not to your clean claims record.

Umbrella limits by revenue: $5M, $10M, and $25M HVAC companies

As an HVAC company grows, its umbrella limit rises with contract size and fleet count. The table below maps each revenue band to the limit contractors typically carry and what drives it. Revenue is a rough proxy; the contract and the fleet are the real inputs.

Two companies at different revenue can land on the same limit. A $6 million contractor with a 20-truck fleet and a $12 million contractor with matching contracts and fleet may both carry $10M, because exposure sets the number.

What a commercial umbrella costs per million

A commercial umbrella's first million of limit costs the most, and each additional million prices lower because the odds of a claim reaching that high keep dropping. For a claim-free HVAC company, a $5 million umbrella commonly runs $1,500 to $3,000 a year, and doubling the limit to $10 million rarely doubles the price. The first layer carries most of the premium; the layers above it are progressively cheaper per million.

Those are typical ranges for a claim-free company doing $2M to $50M in revenue; fleet size and claims history move the actual commercial umbrella cost up or down. A fleet with recent at-fault losses prices above the range, one more reason the fleet insurance under the umbrella matters as much as the umbrella itself.

How to size the umbrella limit without overbuying

Size the limit to the highest requirement you actually see, then layer excess above a $1M/$2M primary to reach it. A year-round $10 million blanket limit makes sense only if most contracts demand it. For a single large job, a project-specific excess layer covers the work and drops off when it closes, which usually costs less than carrying the full limit every month.

The excess layer is the mechanical piece. A follow-form excess policy just adds limit on top of the umbrella or primary beneath it and copies those terms, defined by IRMI as coverage no broader than the policy it sits over. So an excess liability layer for an HVAC company is the cheaper way to add height once a base umbrella is in place.

Confirm that techs driving personal trucks are picked up by hired and non-owned auto underneath, since a gap there can leave the umbrella with nothing to sit on. Coverwatch sizes the excess limit to a contractor's real auto and contract exposure, then shops the layer across carriers instead of defaulting to a round $10 million.

Getting your umbrella limit right

The umbrella limit is one line in a program that also has to keep general liability, commercial auto, and workers comp priced and current. Set the limit off your contracts and fleet, ladder excess to reach it, and revisit it whenever you add trucks or chase bigger work. Coverwatch runs that sizing for HVAC clients as part of the full HVAC company insurance program, so the limit tracks the business instead of last year's guess.