HVAC contractor insurance in South Carolina

What South Carolina's mechanical license makes you carry

Look at the side of a South Carolina HVAC van and you should find the shop's LLR mechanical license number. State law requires it on every commercial vehicle used only in the business's daily operations, displayed at your main place of business, and printed on every invoice and proposal form.

Who licenses HVAC work in South Carolina

Two parts of the Department of Labor, Licensing and Regulation (LLR) share the trade:

• The Contractor's Licensing Board issues mechanical contractor licenses for work over $10,000, a threshold raised from $5,000 in 2023.
• The Residential Builders Commission issues an exam-based residential specialty license for heating and air conditioning installers and repairers on jobs over $500.

On the mechanical side, the HVAC subclassifications include Air Conditioning (conditioned air heating and cooling systems, including packaged equipment and refrigeration work), Packaged Equipment (units up to 25 tons of cooling and 500,000 BTU per hour of heating, plus ventilation and duct systems) and Refrigeration (food storage, display and process refrigeration, not comfort cooling). License groups cap the size of each job: Group 1 at $35,000, Group 2 at $100,000, Group 3 at $200,000, Group 4 at $400,000, and Group 5 unlimited. South Carolina licenses the business; we found no state technician license.

Net worth or a bond, not insurance

We found no general liability or workers' comp requirement for the mechanical license in chapter 11. The financial test is net worth, or working capital, by license group:

• Group 1: $7,000 net worth or $3,500 working capital.
• Group 2: $15,000 or $10,000.
• Group 3: $30,000 or $20,000.
• Group 4: $60,000 or $40,000.
• Group 5: $300,000 or $200,000.

Instead of a financial statement, you may post a continuous surety bond equal to your group's net-worth amount, with the State of South Carolina as obligee. It can be cancelled only on 30 days' notice to the board. On the residential side, a job for an individual property owner over $5,000 calls for a surety bond in an amount the commission approves. Confirm the current requirement with the LLR Contractor's Licensing Board.

Counties and cities issue the mechanical permits, and Greenville County requires them for change-outs. A county or city can't make a residential specialty licensee who passed the commission's exam sit for a second local exam. Every tech who recovers or charges refrigerant needs federal EPA Section 608 certification too. EPA 608 for HVAC owners

Workers' comp for South Carolina HVAC shops and their GCs

South Carolina's comp law reaches employers who regularly have four or more employees. Businesses with fewer, or with total annual payroll under $3,000 in the prior calendar year, are exempt. Owners running as sole proprietors or partners stay off the policy unless they notify the insurer that they want in.

The twist is upstream liability. Owners and higher-tier contractors are liable for comp to a sub's workers. There's a partial way out for the GC: at the time of hiring, get the sub's insurance documentation on a standard form the Commission accepts. If that sub later proves uninsured, whatever its headcount, the GC still pays benefits first, but it can ask the Commission to move the claim to the state's Uninsured Employers' Fund and be reimbursed. So GCs ask HVAC subs for comp certificates even when the sub is below four employees. If an HVAC sub's policy lapses, it owes the contractor above it a certified letter within five days.

Penalties start at $1 per employee per day, at least $10 and up to $100 a day, and willful refusal is a misdemeanor. The licensing boards don't ask for comp proof. See the South Carolina Workers' Compensation Commission and our page on workers' comp for HVAC contractors.

South Carolina risks that move an HVAC premium

Two of South Carolina's standout risks come from license limits and other people's work. The third comes with gas heat.

Responsibility for unlicensed subs

A licensed mechanical contractor may use unlicensed subcontractors within its group and classification only if it supervises them, and it's fully responsible for any violations they cause. If a sub botches a condensate drain or a line set, the license holder owns the problem. Make sure your GL treats subcontracted work the way you expect, and collect certificates from subs who carry their own.

Working past your group limit

License groups cap the size of each job, from $35,000 in Group 1 up to unlimited in Group 5. A growing shop that bids above its group limit is working outside its license. Moving up a group means more net worth or a bigger bond, and the bigger jobs usually bring higher liability limits in the contract.

Gas packs, furnaces and carbon monoxide wording

Gas packs and gas furnaces are everyday equipment on South Carolina permits; Greenville County's residential form lists them line by line. A carbon monoxide claim turns on endorsements. Plenty of contractor GL policies carry a total pollution exclusion or a carrier CO exclusion, and courts are split on whether the gas is a pollutant. We'll flag the CO wording in any South Carolina quote so you see it before binding.

South Carolina HVAC markets we cover

How South Carolina HVAC insurance is priced

South Carolina adds one licensing cost other states don't: if your shop can't show the net worth for its license group, a surety bond for the same amount adds a bond premium. That's $15,000 of bond for Group 2 and $300,000 for Group 5.

We'll also ask about your headcount against the four-employee comp line, how much work you sub out, and how much of your work sits in coastal flood zones.

What you pay depends on your payroll by class code, your annual revenue, your mix of installation and service work, residential versus commercial jobs, the vans you run, your claims history and the limits you pick. A licensed agent reviews your answers before quoting. See what HVAC insurance costs for published ranges.

South Carolina agency licensing

HVAC Insurance Group is a brand of The Allen Thomas Group, licensed in South Carolina (License #1911336268, NPN 7642818). Contractors from the Upstate to the Lowcountry can request quotes, and a licensed agent reviews each request first.