Workers' comp cost for plumbing contractors in Miami
Miami-Dade County has 1,046 plumbing and HVAC contractor businesses. Class 5183 is $2.737 per $100 of payroll; a 5-person Miami crew runs about $7,691 a year.
Plumbing businesses in Miami-Dade County
Miami-Dade County had 1,046 plumbing, heating and air-conditioning contractors (NAICS 238220, which the Census counts together with HVAC) establishments in 2023, employing 7,119 people, according to the Census Bureau's County Business Patterns.
That is 11.2% of the 9,351 such establishments statewide, and the highest count among the nine counties that hold the ten cities in this guide series.
Annual payroll at those firms works out to about $56,291 per employee, which is the number that drives a workers' comp premium.
Narrowing to ZIP codes with a Miami postal address, the same Census program lists 713 plumbing and HVAC contractor establishments in 2023.
Plumbing firms make up 15.5% of the 6,754 construction establishments in Miami-Dade County.
For plumbing and HVAC contractor firms, Miami-Dade County's average pay of $56,291 sits above Alachua County ($52,353) and below Leon County ($57,194).
The Bureau of Labor Statistics counted 5,130 plumbers, pipefitters and steamfitters in the Miami-Fort Lauderdale-West Palm Beach metro area in May 2024, at a median wage of $27.01 an hour, above the Florida median of $24.30.
At that metro median, one full-time worker earns about $56,170 a year, which adds roughly $1,537 of class 5183 premium.
2026 Florida class codes and rates
| Class | What it covers | Rate per $100 payroll | FWCJUA minimum premium |
|---|---|---|---|
| 5183 | PLUMBING NOC AND DRIVERS | $2.737 | $2,623 |
Rates are the 2026 Florida manual rates published by the FWCJUA, matching the standard filing approved by the Office of Insurance Regulation for policies effective on or after January 1, 2026.
Worked example for a Miami crew
Take a 5-person Miami crew paid the county average: $281,000 of annual payroll in class 5183.
At $2.737 per $100, the manual premium is about $7,691 a year, or about $1,538 per employee, before your experience modifier, credits and fees.
Without a voluntary carrier, the FWCJUA would charge about $14,844 (Tier 1, 93% surcharge) or $21,765 (Tiers 2 and 3, 183% surcharge) for the same Miami payroll.
The experience modifier then moves that number: at a 0.85 mod the Miami crew would pay about $6,537, and at a 1.25 mod about $9,614.
This is an illustration built from public averages, not a quote.
Class 5183 manual premium by headcount at Miami-Dade County average pay
| Employees | Annual payroll | Manual premium |
|---|---|---|
| 1 | $56,000 | $1,533 |
| 3 | $169,000 | $4,626 |
| 5 | $281,000 | $7,691 |
| 10 | $563,000 | $15,409 |
| 20 | $1,126,000 | $30,819 |
How plumbing contractors are classified
Residential and commercial plumbers fall under 5183, Plumbing NOC and Drivers. It covers water supply, drain, waste and vent piping, water heaters and fixture installation. Contractors who also do lawn sprinkler systems or large site utility work may need additional codes for that payroll. Service plumbers who drive between calls stay in 5183; dispatchers and office staff go in 8810.
Usually included
- Water supply, drain and vent piping
- Water heater and fixture installation
- Service and repair calls
- Drivers of service vehicles
Rated separately
- Large site-utility and sewer-main work
- Lawn sprinkler installation
- Clerical staff (8810)
At audit
- Sewer, water-main and site-utility work deeper than typical building connections can be reclassified, so keep job records that show the scope.
- Service plumbers who drive company vans stay in 5183; separate auto liability is still needed for the vehicles.
Permits and licensing in Miami
In Miami, the City of Miami Building Department handles plumbing permits. Under section 440.103 of Florida law, a plumbing business has to show proof of workers' comp or an exemption to receive a building permit.
Permits inside city limits come from the City of Miami Building Department, while county-licensed trades are qualified by Miami-Dade County's Construction Trades Qualifying Board, which meets in two divisions: one for building trades and one for electrical, mechanical and plumbing. Miami-Dade is one of the two counties in the Florida Building Code's High-Velocity Hurricane Zone, where exterior products need specific product approval and roofing, windows and walls face stricter inspection. Hurricane season runs June 1 to November 30, and the county's high-rise market keeps crews working at height year-round.
Miami's construction economy leans vertical: condo and office towers in Brickell, Downtown and Edgewater, hotel and mixed-use work, and a deep renovation market in older neighborhoods. Tower jobs bring large general contractors with formal subcontractor prequalification, where a current certificate, a waiver of subrogation and a clean experience modifier are often required to bid. Below the towers, small residential crews do most of the repair and remodeling work, often in Spanish, and many sub to several GCs at once. The City of Miami regulates development under Miami 21, a form-based zoning code that shapes building height and frontage by neighborhood, so permits often move through zoning review before building review. PortMiami, which calls itself the Cruise Capital of the World, and the airport cargo district add marine, industrial and logistics construction to the city's tower and residential work.
- Vertical construction in Brickell, Downtown and Edgewater puts more payroll on work at height than in most Florida cities.
- Salt air and flood exposure on coastal jobs add corrosion, wet-work and water-intrusion hazards.
Common claims for plumbing contractors in Miami
Miami plumbers on towers install vertical risers floor by floor, while service plumbers handle repipes and flood-related repairs in older neighborhoods. Flooding after South Florida storms brings sewage backups and wet-work in damaged buildings, with infection and slip exposures.
- Trench collapses and struck-by injuries on sewer and water-line work
- Back injuries from lifting water heaters and fixtures
- Cuts and puncture wounds from pipe and tools
- Exposure to sewage and mold on repair calls
- Slips on wet floors and in flooded crawl spaces
What to have ready for a Miami plumbing quote
- Payroll for your Miami plumbing work, split by class (5183) and with office staff listed separately
- Certificates or exemptions for every sub on your Miami jobs, checked in the Proof of Coverage database
- Three years of loss runs for the plumbing business, plus your current experience modifier if you have one
- Recent permits pulled with the City of Miami Building Department, which show the volume and type of Miami work
- Any jobs planned outside Miami-Dade County or outside Florida this year, so the policy covers them
Get a workers' comp quote for your Miami plumbing business
Send your payroll by class and your loss runs, and a licensed Bright Coast agent will shop the carriers writing plumbing contractors in Miami-Dade County. Certificates can be issued the same day for qualified accounts.
Questions from Miami plumbing contractors
How much is workers' comp for a plumbing business in Miami?
Florida rates are set statewide, so a Miami business pays the same $2.737 per $100 of payroll for class 5183 as anywhere else in the state. What changes is payroll: at Miami-Dade County's 2023 average of about $56,291 per employee, each worker adds roughly $1,538 of manual premium a year before your experience modifier and credits.
How many plumbing and HVAC contractor businesses operate in Miami?
The Census Bureau's 2023 ZIP Code Business Patterns lists 713 plumbing and HVAC contractor establishments in ZIP codes with a Miami postal address, out of 1,046 across Miami-Dade County and 9,351 statewide. Any of those Miami firms with employees must insure them, which is why owners and GCs ask for a certificate before work starts.
Where do plumbing contractors in Miami get permits, and is proof of coverage required?
Permits inside Miami come from the City of Miami Building Department. County-level trade licensing in Miami-Dade County runs through Miami-Dade County Contractor Licensing (Construction Trades Qualifying Board). Because plumbing is construction work, coverage is required from the first employee, and the Miami permit staff can look your policy up in the state database.
Do plumbing helpers and apprentices get a lower rate?
No. Helpers, apprentices and licensed plumbers are all rated in 5183. The way to lower the total is accurate payroll reporting, separate office payroll in 8810, and a clean loss record that brings your experience modifier down.
Why do Miami tower GCs ask for my experience modifier?
Large general contractors use the experience modification factor to prequalify subs, because it shows how your losses compare with similar Florida businesses. An e-mod above 1.0 can keep you off a bid list, so loss control and prompt claim reporting matter for winning work as well as for premium.
Does hurricane season change workers' comp costs for plumbing contractors in Miami?
The rate does not change with the season, but the bill can. Premium is calculated on audited payroll, so the storm-repair work that follows a hurricane in Miami raises payroll and, with it, the final audited premium. Updating your payroll estimate mid-term avoids a large audit bill.
Sources
- Florida DBPR, Construction Industry Licensing Board
- U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2024 (metropolitan areas and Florida)
- U.S. Census Bureau, ZIP Code Business Patterns 2023 (establishments by size class, ZIPs grouped by postal city)
- Florida Statutes, Section 440.103 — Building permits; proof of workers' compensation coverage
- Florida Workers' Compensation Joint Underwriting Association, 2026 rates and minimum premiums by class
- Florida Office of Insurance Regulation, Commissioner approves 6.9% workers' compensation rate decrease effective January 1, 2026
- FWCJUA, Bulletin 25-9: 2026 Tier 1, 2 and 3 surcharges
- U.S. Census Bureau, County Business Patterns 2023 (establishments, employment and annual payroll by county and NAICS)
- Florida Statutes, Section 440.02 — Definitions (employer, construction industry, corporate officers)
- Florida Statutes, Section 440.05 — Election of exemption
- Florida Statutes, Section 440.10 — Liability for compensation (contractors and subcontractors)
- Florida Statutes, Section 440.107 — Compliance, stop-work orders and penalties
- Florida Division of Workers' Compensation, Proof of Coverage database
- U.S. Census Bureau, 2020 Census population, QuickFacts
- City of Miami, Building Department
- Miami-Dade County, Construction Trades Qualifying Board
- Florida Building Commission, Florida Building Code (High-Velocity Hurricane Zone provisions for Miami-Dade and Broward)
- NOAA National Hurricane Center, Tropical cyclone climatology (Atlantic season June 1 – November 30)
Reviewed 2026-10-13. Rates and figures are for illustration; a quote depends on your payroll, classifications, experience modifier and carrier.