Cost
Most solo HVAC contractors pay between $650 and $2,000 a year for general liability. Here's what drives the number — and what you'd likely pay.
HVAC insurance costs more than lighter trades because of what's actually at stake — combustion, gas lines, and refrigerant. Here are typical ranges for the most common coverage types:
Carriers rate HVAC higher than trades like painting or landscaping for one central reason: combustion and carbon monoxide exposure. Improper venting or a bad gas line connection isn't a cosmetic mistake — it's a life-safety claim. Add refrigerant handling and EPA Section 608 requirements on top of that, and HVAC lands in a premium band closer to electrical work than to general handyman services.
Not every HVAC business carries the same exposure, and this is the single biggest thing you can do to affect your own premium. A contractor doing electric-only work — ductless mini-splits, electric heat pumps, no gas lines or combustion appliances — is rated closer to a general electrical trade than to a furnace-and-boiler shop. If gas work is a small slice of your business, say so specifically; carriers price the blended mix, not just the category "HVAC." Contractors who are honest and specific about their electric-only percentage often see a meaningfully better rate than the blended average.
If your technicians handle refrigerant, EPA Section 608 certification status affects more than rate — it can affect whether a carrier will write you at all. Uncertified refrigerant handling is a real red flag in underwriting, separate from the pricing conversation. If you're working with legacy systems still running R-22 or older refrigerants, mention that too; older refrigerant handling carries different regulatory and environmental liability exposure than current R-410A systems, and carriers ask about it for a reason.
A rooftop unit on an occupied commercial building isn't the same underwriting picture as a furnace swap in a single-family home. Rooftop work adds fall exposure, access logistics, and — if something goes wrong — the potential to disrupt an entire building's operations rather than one household. Residential work carries its own version of this: you're working inside occupied living space, often with a family present, which raises the stakes on a combustion or CO mistake even though the property itself is smaller. Tell us your residential-versus-commercial split; it's not just a marketing category, it's a real rating input.
Revenue matters here the same way it does everywhere, but the multiplier is different: a $75,000/year service-only tech and a $400,000/year contractor running gas installs carry very different exposure per dollar of revenue, because the installs themselves carry more combustion and CO risk than a repair call. Carriers weight HVAC revenue against your install/service mix, not just the number itself.
New installation work often carries different exposure than service and repair calls. A full system install touches gas lines, electrical connections, and combustion appliances from the ground up, while a service call may be narrower in scope. Carriers want to know your mix so they can rate it accurately — and it affects your completed operations exposure too.
Any work involving furnaces, boilers, or other combustion appliances carries carbon monoxide exposure. This is the single biggest severity driver in HVAC underwriting — a claim here isn't a cracked window, it's a bodily injury claim with real limits attached.
Adding employees increases your premium because it increases your exposure, and in HVAC that exposure includes whoever's actually pulling the gas permit and signing off on combustion work — journeyman-licensed techs versus apprentices affects how a carrier views your crew. If you use subcontractors handling refrigerant, they need their own current EPA 608 certification; a sub without one is a gap in your risk profile even if your own paperwork is clean.
Inland marine pricing runs off total equipment value, and HVAC equipment value adds up fast — a decent set of manifold gauges, a refrigerant recovery machine, a combustion analyzer, and leak detectors can represent a real dollar figure sitting in a service van overnight. Contractors running install crews with brazing rigs and larger recovery units carry more value at risk than a single service tech, and that shows up in the premium.
HVAC revenue often swings between heating season and cooling season. Carriers factor this into how they view your annual revenue reporting — a business that's slow in spring but slammed in July and January isn't unusual, and a good quote accounts for that instead of penalizing it.
Most HVAC contractors start with $1M per occurrence / $2M aggregate. Some commercial mechanical clients and GCs require $2M/$4M, which costs more but is often a job requirement.
Insurance rates vary by state, and for HVAC that's not just general market competition — it's tied to how strict a state's mechanical licensing board and gas code enforcement are. States with stricter permitting and inspection regimes sometimes rate more favorably because the exposure is better documented and controlled; states with looser oversight can go either way. Your agent will factor in the actual regulatory environment where you operate.
Per-job coverage sounds appealing when you're between seasons, but it rarely pencils out for HVAC — cancelling and restarting a policy every time work picks back up costs more over a year than staying continuously covered, and it leaves gaps a carrier will ask about later. One annual policy also means you're not scrambling to bind a fresh certificate every time a municipality or GC asks for proof mid-job, which happens often on gas-line work.
The best way to know your exact premium is to request a quote. Our licensed agents will ask about your revenue, your gas-versus-electric-only mix, your residential-versus-commercial split, your refrigerant handling and EPA 608 status, your employees and subcontractors, and your equipment — then shop multiple carriers to find the best fit for your actual risk profile.
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FAQ
Most solo HVAC contractors with no employees pay between $650 and $1,400 a year for general liability. Adding equipment coverage typically brings the total to $900–$2,200 depending on your equipment value.
Carbon monoxide and combustion exposure from furnace and boiler work, plus refrigerant handling requirements, put HVAC in a higher severity band than trades without gas or combustion exposure.
It can. Full installations touch gas lines, electrical connections, and combustion appliances from the ground up, and often carry more completed operations exposure than a narrower service call.
Carriers understand that HVAC revenue swings between heating and cooling season. Tell us your seasonal mix so we can match you with a carrier that rates it fairly instead of penalizing the swing.
Most HVAC contractors start with $1M per occurrence / $2M aggregate, which satisfies the requirements of most residential clients and GCs. Some commercial mechanical projects require $2M/$4M. We can quote both.
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