Workers' Comp for Excavation and Site Work Contractors in Florida

Workers' Comp for Florida Dirt and Underground Work

Florida's growth runs on site work. Before a subdivision, warehouse, school or shopping center goes vertical, somebody has to clear the lot, cut and fill the grade, dig the retention pond, trench the storm drainage and lay the sewer. That work is done by excavation and site work contractors running excavators, dozers, loaders, compactors and dump trucks, often alongside laborers working in and around open trenches. It is construction work under Florida law, and it carries the injury exposure you would expect from heavy equipment and moving earth.

The good news for site contractors is that the filed rates for the main dirt and underground classifications are moderate compared with trades like roofing or framing. The bad news is that the rules for who must be covered are strict, enforcement is active on construction sites, and getting the code split wrong between excavation, drainage and sewer work can cost real money at audit. This page walks through the codes, what drives your price, and how buying coverage through a PEO works for a site work company.

Which Class Codes Apply to Excavation and Site Work

Florida uses NCCI class codes. The code is based on the work your employees actually do, not on your business name or license type, so a company that does several kinds of site work may report payroll under more than one code. These are the codes most site contractors deal with, with the 2026 Florida rates pulled live from our rate table:

Code 6217 (Excavating & Drivers) is the home code for most site work companies. It covers equipment operators, laborers, the mechanics who keep your iron running and the drivers who haul dirt and fill. Lot clearing and grading companies, pool excavation crews and firms that dig foundations for builders usually land here.

Code 6229 (Irrigation or Drainage System Construction) applies to drainage and irrigation work, including the trenching and pipe laying that goes with it. In Florida it is common for drainage contractors, lawn sprinkler installers and many septic system installers.

Code 6306 (Sewer Construction) covers building sewer systems from excavation through pipe, manholes, backfill and restoration. Underground utility contractors working on new subdivisions and municipal projects often carry this code alongside 6217.

If your crews also install water mains (6319), conduit (6325) or pave (5506), that payroll may belong in its own code. Construction classifications generally allow payroll to be divided between codes only when your records show the split clearly, such as time records by job and task. Without records, an auditor can assign the payroll to the highest rated code that applies. Ask your bookkeeper to track hours by type of work from the start.

Who Needs Coverage in Florida

Excavation, grading, drainage and sewer work all fall in Florida's construction industry. That matters because Florida sets different thresholds by industry:

• Construction: coverage is required once you have 1 employee. There is no small-crew exception.
• Non-construction: coverage is required at 4 or more employees, and part-time employees count.
• Agriculture: coverage is required at 6 regular employees or 12 seasonal workers.

Owners are a separate question. In a non-construction business, corporate officers can elect out of coverage. In construction, an officer who wants to be excluded must hold a valid construction exemption from the Florida Division of Workers' Compensation. A construction company can have up to 3 exempt officers, and each must own at least 10% of the company. The exemption covers only that officer. Every operator, laborer and driver on your payroll still has to be covered.

Site work companies also need to watch their subcontractors. If you hire a sub who has no workers' comp and no valid exemption, Florida treats that sub's workers as yours for coverage purposes, and their payroll can be added to your premium at audit. Collect a certificate of insurance or exemption from every sub before they start, and verify it is current. Our subcontractor certificate guide covers what to collect.

What an Excavation Policy Costs: A Worked Example

Workers' comp premium starts with the filed rate per $100 of payroll. Here is a simple example using the live 2026 Florida rate for code 6217:

That is a starting point, not a quote. Your experience mod, any premium discounts, state assessments and the pricing of the program you buy through all move the final number. Use the instant quote tool with your real payroll to see an itemized price.

What Drives Price for Site Work Contractors

1. Payroll by code. Premium is charged on gross payroll, so every operator you add raises exposure. Accurate splits between 6217, 6229 and 6306 keep you from paying a higher rate on work that belongs in a lower one.
2. Experience mod. Once your premium is large enough to be rated, your claims history produces a mod that multiplies the rate up or down. A trench injury or equipment rollover can push your mod up for three years. Read how the experience mod works.
3. Uninsured subs. Payroll from subs without coverage or a valid exemption can be added to your audit. This is one of the most common reasons site contractors get a surprise bill.
4. Safety practices. Trench protection, competent person oversight, seat belt use in equipment and backing procedures for dump trucks all reduce the claims that drive your mod.
5. Drivers and hauling. Drivers who haul for your own jobs are part of these codes. If you run a separate hauling business for others, that may need its own classification. See our trucking page.
6. How you buy. A traditional policy bills an estimated premium up front and trues up at audit. A pay-as-you-go PEO program bills on actual payroll each pay period.

Stop-Work Orders and Penalty Risk

Florida's Division of Workers' Compensation runs compliance checks on construction sites, and visible site work with heavy equipment is easy to find. If an investigator finds employees working without required coverage, the Division can issue a stop-work order. A stop-work order applies to the whole business, not just the job where the investigator showed up, so every crew stops until it is released.

The penalty is based on what you should have paid. Under Florida law it is generally calculated as a multiple of the premium that would have applied to your uninsured payroll over a look-back period, with a minimum penalty, and working in violation of the order adds daily penalties on top. Because the calculation uses the rates for your codes, a site contractor with a large uninsured crew can face a penalty far larger than a year of premium. Read the full breakdown in our stop-work order guide.

For site contractors, the usual triggers are an expired policy, a new hire added before coverage was updated, a sub with a lapsed exemption, or an owner who assumed his exemption covered his crew. Keeping coverage current and verifying sub certificates before each job prevents almost all of them.

How Buying Through a PEO Works

We place excavation and site work contractors with a Florida PEO (professional employer organization). In a PEO arrangement, your field employees are co-employed: you keep running your business, hiring, bidding and directing the work, and the PEO handles payroll processing and covers your employees under its master workers' comp policy.

• Pay as you go. Workers' comp is billed with each payroll based on actual wages, instead of a large deposit up front.
• No year-end audit surprise. Because premium is calculated from real payroll every pay period, there is no annual true-up bill for payroll you did not estimate.
• Certificates for GCs and developers. Certificates of insurance are issued for your jobs so you can get on site.
• Seasonal swings. When work slows, your comp cost drops with your payroll automatically.

A PEO is not right for every company, and pricing depends on your codes, payroll and history. Compare the two approaches in PEO vs standard workers' comp, or start the instant quote with code 6217 already filled in.

Excavation and Site Work FAQs

Related Resources

• Workers' comp for concrete contractors
• Workers' comp for demolition contractors
• Workers' comp for pool contractors
• Workers' comp for general contractors
• Florida construction exemptions explained
• Florida stop-work orders
• Pay-as-you-go workers' comp
• Full Florida class code list (2026 rates)

Last reviewed: November 2026, by Cheap Workers Comp Florida, licensed Florida agency DFS #L077476. Rates shown are the 2026 Florida filed rates from our rate table and are for illustration; your price depends on your payroll, codes, experience and underwriting.