How much does insurance cost for an HVAC contractor?

Which policies an HVAC business is made to carry

An HVAC company’s insurance comes from three directions: state comp law, the license board and customer contracts. Each one sets its own minimum, and they differ by state.

• Workers’ compensation follows the employer’s state law. Florida covers construction employers from the first employee, and HVAC work (class 5537) is on Florida’s list of construction classes⁠³⁠¹². Texas lets private employers decide, but a contractor on a public building or construction contract must certify comp for every employee on the project, subcontractors included⁠¹⁰.
• General liability is a license condition in Texas and Florida, with the amounts set by rule⁠⁷⁠¹¹.
• License bonds are the condition in Arizona, where the amount scales with the work you expect to do⁠¹⁵⁠¹⁶.
• Commercial auto, tools and equipment, and umbrella coverage are not license conditions in any of the four states checked here. They are bought for the vehicles, gear and contract limits of the individual business.

What the business does matters for pricing as much as the trade name. A service-and-replacement shop that sends technicians to homes has a different payroll mix, vehicle count and job-size profile from a commercial contractor installing rooftop units and ductwork. The class codes, license class and bond amount all follow that split.

License insurance and bond rules in four states

These are the rules we confirmed with each board or in statute on October 13, 2026.

Scroll the table sideways to see every column.

Texas: the license class sets the limits

Texas licenses air conditioning and refrigeration contractors in two classes. Class A covers systems of any size. Class B is limited to 25 tons of cooling capacity or 1.5 million BTU per hour of heating output⁠⁸. Each license also carries an endorsement for environmental air conditioning, commercial refrigeration and process cooling or heating, or both⁠⁸.

The insurance rule follows the class⁠⁷:

• Class A: commercial general liability of at least $300,000 per occurrence, $600,000 aggregate, and $300,000 aggregate for products and completed operations.
• Class B: at least $100,000 per occurrence, $200,000 aggregate and $100,000 for products and completed operations.

The policy must come from an insurer authorized in Texas. A certificate goes to TDLR with the first application, whenever the business name or affiliation changes, and on request. The contractor must give the carrier’s name, the policy number and the agent’s contact details to any customer who asks⁠⁷. A license holder who does not contract with the public can ask for a waiver, but a waived licensee may not offer work to the public⁠⁷⁠⁸. TDLR’s own guidance says all non-exempt air conditioning and refrigeration work must go through a licensed contractor who carries the required liability insurance⁠⁹.

The aggregate is the figure to check on a quote. ERGO NEXT says its HVAC general liability policies carry $300,000 to $1 million per occurrence and $300,000 to $2 million aggregate⁠²¹. A policy at the bottom of that range, $300,000 per occurrence and $300,000 aggregate, would fall short of the Class A aggregate minimum (our reading of the two limits).

Florida: $100,000 and $25,000, kept in force

The Construction Industry Licensing Board requires an air conditioning contractor to carry $100,000 of public liability and $25,000 of property damage insurance. Sheet metal, mechanical and plumbing contractors carry the same amounts; general contractors carry $300,000 and $50,000⁠¹¹. You attest to the coverage in a signed affidavit when the license is issued or renewed. The board audits licensees at random by ZIP code and can ask for a certificate naming the board as certificate holder, with 30 days’ notice of cancellation. A lapse at any time violates the rule⁠¹¹.

On comp, Florida covers construction employment from the first employee. No more than three corporate officers, each owning at least 10% of the company, may elect to be exempt⁠¹².

Georgia: no state insurance minimum we could find

Georgia licenses conditioned air contractors in two classes. Class 1 is restricted to systems of up to 175,000 BTU of heating and 60,000 BTU of cooling; Class 2 is unrestricted⁠¹³. The board’s application checklist asks for EPA certification and a Manual J and D load-calculation certificate (Class 2 adds Manuals N and Q), but lists no certificate of insurance⁠¹³.

Cities and counties cannot fill that gap. In Official Opinion 95-7 (1995), Georgia’s Attorney General concluded that a local requirement to carry liability insurance would be an additional licensing condition, which state law preempts⁠¹⁴. The same opinion describes a voluntary bond that conditioned air contractors and plumbers can deposit with the probate judge in their home county. A contractor who has deposited it cannot be asked for a local code-compliance bond⁠¹⁴.

Arizona: the bond scales with volume

The Registrar of Contractors issues R-39 for residential air conditioning and refrigeration, C-39 for commercial work, and CR-39 for both⁠¹⁷. Before the license is granted, the contractor posts a surety bond or cash deposit, and the bond must stay continuously in force⁠¹⁵⁠¹⁶. The ROC’s table sets the amounts⁠¹⁶:

• Residential specialty (R-39): $4,250 below $375,000 of annual volume, $7,500 at or above it.
• Commercial specialty (C-39): $2,500 up to $150,000 of volume, rising in steps to $50,000 above $10 million.
• Dual (CR-39): the residential and commercial amounts added together.

Residential and dual licensees must also either post a separate $200,000 bond or pay into the Residential Contractors’ Recovery Fund⁠¹⁵⁠¹⁶.

The comp classes HVAC work falls into

States that use NCCI-based codes put HVAC installation and service in class 5537. Its full title covers heating, ventilation, air-conditioning and refrigeration systems, installation, service and repair, including the shop, yard and drivers⁠¹⁠³. Ductwork fabricated and hung as sheet metal work can be classed separately as 5535⁠¹⁠³. Ohio, Washington and Wyoming run monopolistic state funds that publish the rate itself:

Base rates set by the state fund before experience modification. Ohio and Wyoming charge per $100 of payroll; Washington charges per hour worked, and part is withheld from wages. Other states’ insurers file their own rates; see where rates are published.

What the numbers show:

• Ohio. At $2.154 per $100 of payroll, 5537 is 46 times the clerical rate (8810, $0.0466). It is 1.5 times plumbing (5183, $1.4612), about twice electrical wiring (5190, $1.0889) and 37% of roofing (5551, $5.7709). Sheet metal installation (5535, $3.2916) costs 1.5 times as much as 5537. HVAC ranks 127th of Ohio’s 501 classes. All are our calculations from the schedule effective July 1, 2026⁠¹.
• Washington. Class 0307, “HVAC-R System/Wood stove-Install, Svs, Repair”, costs $1.9751 per hour worked in 2026. That is 8.9 times clerical (4904, $0.2223) and close to plumbing (0306, $1.8222). Of the hourly rate, $0.34015 is the worker’s share that may be withheld from wages⁠⁴. It ranks 93rd of 320 classes (our count).
• Wyoming. Wyoming’s NAICS-based schedule has only three construction lines. HVAC falls in 238000, Specialty Trade Contractors, at $2.39 per $100 in 2026, the same rate as every other specialty trade⁠⁵.

The Bureau of Labor Statistics does not publish an HVAC-only figure. In June 2026, construction employers paid $1.10 per hour worked for workers’ comp, 2.1% of total compensation, against $0.43 for all private industry⁠⁶. For the occupation group “natural resources, construction, and maintenance”, across all industries, the figure is $0.98⁠⁶.

Average employer cost per employee hour worked for workers' compensation and for health insurance, averaged across all workers in the group, plus workers' compensation as a percent of total compensation. Group averages mix high- and low-risk jobs, so they are not a premium rate for any single business. U.S. Bureau of Labor Statistics (BLS), National Compensation Survey, June 2026 (2026 Q2), private industry workers, released 9 Sep 2026.

Worked premiums for a five-person shop

The examples use one set of assumptions in all three state-fund states. Four technicians earn $240,000 of HVAC payroll and work 8,000 hours between them. One office employee earns $45,000 over 2,000 hours and qualifies for the clerical class. These are our calculations from the official 2026 rates, not quotes.

1. Ohio

   $240,000 ÷ 100 × $2.154 = $5,169.60, plus $45,000 ÷ 100 × $0.0466 = $20.97, for $5,190.57 at base rates⁠¹. An employer is eligible for experience modification only if its expected losses reach the minimum in the rule’s appendix; the mods below are illustrations⁠². At a 1.25 mod the total is $6,488.21; at 0.85 it is $4,411.98.

2. Washington

   8,000 hours × $1.9751 = $15,800.80 for the technicians, of which $2,721.20 may be withheld from their pay. The employer’s share is $13,079.60. The office hours add $444.60, including $201.40 of worker share⁠⁴.

3. Wyoming

   $240,000 ÷ 100 × $2.39 = $5,736, plus $45,000 ÷ 100 × $0.31 for the clerical special-exception class = $139.50, for $5,875.50⁠⁵.

Payroll split matters. In Ohio, the office payroll left in 5537 by mistake would cost $969.30 instead of $20.97 (our calculation)⁠¹. Outside the three state-fund states, private insurers apply their own rates to the same class codes. Ask for the rate and loss-cost multiplier behind each quote. The experience modification guide shows how claims move the mod, and the class code guide covers how payroll is split between classes.

What insurers report HVAC customers pay

Two companies publish figures for HVAC businesses specifically. Neither is a market average.

Why the two sets differ:

• Statistic. Insureon calls its figures averages, but says they are drawn from the median cost of policies for HVAC installation companies that apply for quotes through it⁠²⁰. ERGO NEXT mixes measures: an average for 79% of its general liability customers, a median for workers’ comp, and price ranges that cover at least 51% of its active customers over the previous 12 months⁠²¹. As published, its $119 comp median falls above its own $30 to $106 range for most customers⁠²¹.
• Limits. Insureon’s general liability figure is for $1 million per occurrence and $2 million aggregate. ERGO NEXT’s policies run from $300,000 to $1 million per occurrence⁠²⁰⁠²¹. Lower limits cost less.
• Customer size. Most of Insureon’s customers have fewer than five employees and five years or less in business⁠²⁰. A comp premium of $182 a month is $2,184 a year, less than half the Ohio base-rate result for the five-person shop above. The difference reflects small and owner-only payrolls in the sample, not a cheaper rate (our comparison).
• Floor, not typical. ERGO NEXT’s headline “as little as $75 per month” is its minimum general liability premium for HVAC businesses in Texas⁠²¹.

For vehicles, Progressive Commercial reports a 2025 median of $203 a month and an average of $260 per power unit for its contractor customers, for new policies with no driver violations, liability and physical damage coverage⁠²². That group includes other trades besides HVAC.

Refrigerant rules and the pollution question

EPA certification is not insurance. Under Section 608 of the Clean Air Act, technicians who maintain, service, repair or dispose of equipment that could release refrigerants must be certified⁠¹⁸. Certification comes in Type I (small appliances), Type II (high- and very-high-pressure appliances), Type III (low-pressure appliances) and Universal. The credentials do not expire⁠²⁵. EPA rules also prohibit intentionally venting ozone-depleting refrigerants or their substitutes during service, repair or disposal⁠¹⁹. Certification lets a technician do the work legally. It pays no claims, and Georgia lists it as an application document for the license⁠¹³.

General liability has a pollution exclusion. Triple-I lists pollution liability among the exclusions of a standard commercial general liability policy⁠²³. We found no official source on how insurers apply that exclusion to a refrigerant release at a customer’s site. If refrigerant work is a large part of your business, read the pollution exclusion and any pollution endorsement offered with the quote before you compare prices.

Other costs on an HVAC budget

• General liability pricing. In ISO’s general liability program, payroll is the premium base for most contracting and service risks⁠²⁴. Adding technicians therefore raises the general liability exposure as well as the comp premium. Products and completed operations is the part of the policy that responds after the job is done. Texas sets a separate aggregate minimum for it⁠⁷.
• Equipment in transit. Gauges, recovery machines and units waiting to be installed are your own property, which liability coverage does not pay for. Insureon notes that items worth more than $2,500 may need to be scheduled on a tools and equipment policy⁠²⁰. See inland marine.
• Bonds. Arizona’s license bond must remain in force continuously, and the surety can cancel only after 30 days’ notice to the contractor and the ROC⁠¹⁶. Bond premiums are set by each surety. See surety bonds.

To put a budget together:

1. Split payroll by class

   (field technicians, sheet metal, office, outside sales) and in Washington track hours instead of wages⁠⁴.

2. Price comp from the official rate

   in Ohio, Washington and Wyoming; elsewhere ask each insurer for its class rate and multiplier, then apply your mod.

3. Set liability limits at the higher of the license minimum and your largest contract

   , checking both per-occurrence and aggregate limits against the Texas or Florida rule if you work there⁠⁷⁠¹¹.

4. Add vehicles, equipment and bonds

   on their own bases: units and drivers, equipment values, and bond amount.

State hubs for Texas, Florida, Georgia and Arizona cover each state’s comp system. The requirements table gives every state’s employee threshold, and the workers’ comp estimator runs the arithmetic with official rates.

Sources

1. 1
   Ohio Bureau of Workers' Compensation / Ohio Administrative Code, OAC 4123-17-06, Appendix A: base rates effective July 1, 2026 (private employers) Checked 13 Oct 2026 · Back to text ↑
2. 2
   Ohio Bureau of Workers' Compensation / Ohio Administrative Code, OAC 4123-17-03, Experience rating Checked 13 Oct 2026 · Back to text ↑
3. 3
   Florida Department of Financial Services, Division of Workers' Compensation, Rule 69L-6.021, Construction industry classification codes Checked 13 Oct 2026 · Back to text ↑
4. 4
   Washington State Department of Labor & Industries, 2026 hourly rates by risk classification Checked 13 Oct 2026 · Back to text ↑
5. 5
   Wyoming Department of Workforce Services, Workers' compensation 2026 industry base rates by classification Checked 13 Oct 2026 · Back to text ↑
6. 6
   U.S. Bureau of Labor Statistics, Employer Costs for Employee Compensation, June 2026 (released Sept. 9, 2026) Checked 13 Oct 2026 · Back to text ↑
7. 7
   Texas Department of Licensing and Regulation, Air conditioning and refrigeration rules, 16 TAC chapter 75 (§75.40, Contractor insurance requirements) Checked 13 Oct 2026 · Back to text ↑
8. 8
   Texas Legislature, Occupations Code chapter 1302, Air conditioning and refrigeration contractors Checked 13 Oct 2026 · Back to text ↑
9. 9
   Texas Department of Licensing and Regulation, Air conditioning and refrigeration: frequently asked questions Checked 13 Oct 2026 · Back to text ↑
10. 10
    Texas Legislature, Texas Labor Code chapter 406, Workers' compensation insurance coverage Checked 13 Oct 2026 · Back to text ↑
11. 11
    Florida Construction Industry Licensing Board, Rule 61G4-15.003, Public liability insurance Checked 13 Oct 2026 · Back to text ↑
12. 12
    Florida Legislature, Florida Statutes 440.02, Definitions Checked 13 Oct 2026 · Back to text ↑
13. 13
    Georgia Secretary of State, Professional Licensing Boards, How-to guide: Conditioned air contractor Checked 13 Oct 2026 · Back to text ↑
14. 14
    Georgia Attorney General, Official Opinion 95-7 (Feb. 23, 1995), local insurance and bond requirements for state-licensed contractors Checked 13 Oct 2026 · Back to text ↑
15. 15
    Arizona State Legislature, A.R.S. 32-1152, Bonds Checked 13 Oct 2026 · Back to text ↑
16. 16
    Arizona Registrar of Contractors, Bond information Checked 13 Oct 2026 · Back to text ↑
17. 17
    Arizona Registrar of Contractors, License classifications Checked 13 Oct 2026 · Back to text ↑
18. 18
    U.S. Environmental Protection Agency, Section 608 technician certification Checked 13 Oct 2026 · Back to text ↑
19. 19
    U.S. Environmental Protection Agency, Stationary refrigeration: prohibition on venting refrigerants Checked 13 Oct 2026 · Back to text ↑
20. 20
    Insureon, HVAC contractor insurance cost (updated Aug. 24, 2026) Checked 13 Oct 2026 · Back to text ↑
21. 21
    ERGO NEXT, HVAC contractor insurance cost (data updated October 2026) Checked 13 Oct 2026 · Back to text ↑
22. 22
    Progressive Commercial, Commercial auto insurance cost Checked 13 Oct 2026 · Back to text ↑
23. 23
    Insurance Information Institute (Triple-I), Commercial general liability insurance Checked 13 Oct 2026 · Back to text ↑
24. 24
    Verisk (ISO), Here's a powerful new pricing tool for general liability insurers (Sept. 29, 2021) Checked 13 Oct 2026 · Back to text ↑
25. 25
    U.S. Environmental Protection Agency, Section 608 technician certification requirements Checked 13 Oct 2026 · Back to text ↑

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