What Insurance Does a Field Service Business Need?

Insurance is one of those costs that feels purely defensive right up until the day it saves your business. Most field service owners carry something, but not always the right combination — here's what actually matters, in plain terms.

General liability insurance

This is the foundation. It covers third-party property damage and bodily injury caused by your work — a tech's ladder cracking a customer's tile floor, a pipe repair that floods a basement, a customer tripping over your equipment. Most commercial leases and many client contracts require proof of this before you can even start work. Typical small-business policies run $500-1,500/year for $1-2 million in coverage, which is inexpensive relative to what a single serious claim could cost.

Workers' compensation

If you have even one employee (not just yourself), most states require this by law. It covers medical costs and lost wages if an employee is injured on the job — a genuinely common risk in physical trade work. Skipping it because "it's just one part-time guy" is a common and costly mistake if that one part-time guy gets hurt.

Commercial auto insurance

A personal auto policy typically does not cover a vehicle used for business purposes, even if it's the same truck you drive on weekends. If a work vehicle is in an accident and your insurer discovers it was being used commercially, a personal policy can deny the claim entirely. Commercial auto coverage, including for tools and equipment stored in the vehicle, closes this gap.

Tools and equipment coverage

Often called "inland marine" coverage, this protects tools and equipment against theft or damage — including while they're in transit or on a job site, not just in a shop. For trades with expensive equipment (HVAC compressors, specialized diagnostic tools), this is worth pricing out specifically rather than assuming it's bundled into general liability.

Professional liability / errors and omissions

Less common in trade work but relevant for anyone giving advice or designs as part of the job — an HVAC system sized incorrectly, an electrical plan that fails inspection. This covers claims of a mistake in professional judgment, separate from physical property damage.

Umbrella policy

Once a business has meaningful revenue or handles higher-risk jobs (gas lines, roofing, electrical panels), an umbrella policy extends coverage limits above your general liability policy's cap for a relatively small additional premium — worth it given how quickly serious claims can exceed standard limits.

A note on licensing and bonding

Many states require a surety bond for licensed trades on top of insurance — this isn't insurance for you, it's a guarantee to customers that they can recover money if you don't complete a job as agreed. Check your state's specific licensing board requirements, since these vary significantly by trade and state.

The real cost of skipping coverage

A single uninsured claim — a flooded basement, an injured employee, a totaled work truck — regularly runs into the tens of thousands of dollars for a small business, which is often more than several years of premiums combined. Coverage decisions are worth revisiting with an insurance broker annually as your business grows, rather than set once and forgotten.