The Primary HVAC Class Code
Most HVAC businesses in Florida fall under NCCI class code 5537 — Heating, Ventilation, Air Conditioning, and Refrigeration Systems. This code covers the installation, service, and repair of HVAC and refrigeration systems in commercial and residential buildings.
Typical Florida rate for 5537: $3.00–$6.50 per $100 of payroll
That puts HVAC in the moderate risk tier — lower than general contractors (5403) or roofers (5551), but higher than clerical work or finish carpentry.
When Other Codes Apply
Not every person on your HVAC payroll belongs in 5537. Here's how the codes break down:
| Role | Class Code | Description | Approximate Rate |
|---|---|---|---|
| HVAC technicians (install/service) | 5537 | Heating, ventilation, AC, refrigeration | $3.00–$6.50 |
| Ductwork fabrication (shop) | 5538 | Sheet metal work — shop only | $2.50–$5.00 |
| Office/admin staff | 8810 | Clerical office employees | $0.20–$0.40 |
| Outside sales | 8742 | Outside salespersons | $0.30–$0.60 |
| Drivers/delivery | 7380 | Drivers, chauffeurs — commercial | $4.00–$8.00 |
Florida-Specific Requirements
Who Needs Coverage
Florida requires workers' comp for:
- Construction industry: 1 or more employees (HVAC is classified as construction)
- Non-construction: 4 or more employees
Since HVAC installation and repair is classified as construction under Florida law, you need workers' comp coverage with your very first employee — including 1099 subs who don't carry their own policy.
Exemptions
Sole proprietors and up to 3 corporate officers can file for a Construction Industry Exemption with the Florida Division of Workers' Compensation. But exempt individuals cannot perform work for you as a sub without their own exemption on file.
State Minimum Coverage
Florida requires workers' comp policies to meet the state statutory limits. There is no option to buy a lower-limit policy — the statutory benefit schedule is the floor.
How to Save on HVAC Workers' Comp in Florida
- Split your payroll correctly. Office staff at 8810 ($0.20/100) vs. field techs at 5537 ($5.00/100) is a 25× rate difference. Every dollar of payroll in the wrong code costs you money.
- Maintain a clean experience mod. HVAC injuries tend to be moderate-severity (burns, falls from ladders, electrical) but frequent. A formal safety program with documented training can keep your mod under 1.00.
- Shop multiple carriers. Florida's HVAC WC market is competitive. Carriers like Employers, AMERITAS, Builders Mutual, and state fund options all price 5537 differently. An independent agent with access to 10+ carriers can often find 15-25% savings.
- Consider pay-as-you-go billing. Seasonal HVAC businesses (heavy in summer, light in winter) can avoid large audit adjustments by using payroll-linked billing that adjusts monthly.
- Bundle with your GL. Many carriers offer package discounts when you combine workers' comp with general liability — often 5-10% off each policy.
Need Help With Your Coverage?
Get a free risk review from a licensed independent agent with access to 300+ carrier markets.
Get a Free Risk Review →Related Articles
- Do I Need Workers' Comp for 1099 Contractors in Florida?
- How MOD Rates Affect Your Premium
- Contractor Insurance
Sources: NCCI Scopes Manual — Class Code 5537, 5538; Florida Division of Workers' Compensation — Coverage Requirements; Florida Office of Insurance Regulation — Current Rate Filings