Welding and Fabrication insurance

Which policies welders and fabricators carry, what each one costs on average, when you need workers' comp and bonds, and what your state's license rules ask for.

$167General liability, a month
$268Commercial auto, a month
LocalNo state trade license

The policies a welding business carries

Welding puts heat, sparks and molten metal next to other people's property. A fire started on a mobile job and a weld that fails later, like a trailer hitch or a stair railing, are the claims a welding shop plans for.

PolicyAverage a month
General liability$167
Tools and equipment$42
Commercial auto$268
Workers' compensation$175
Surety or license bond$9
Business owner's policy$125
Professional liability$67
Commercial umbrella$93

Averages are what Insureon's customers who are welders pay, from Insureon's cost page; most of its customers have fewer than five employees. Across all its small business customers, general liability runs $265 to $3,030 a year.

Claims welders and fabricators plan for

  • Sparks from a mobile job start a fire at a customer's property
  • A trailer hitch you repaired fails on the road
  • A railing you built and installed pulls loose
  • A helper is burned in the shop

Ask your agent, in these words:

  • Would my policy pay if sparks from a mobile job start a fire at a customer's property?
  • Would my policy pay if a trailer hitch you repaired fails on the road?
  • Would my policy pay if a railing you built and installed pulls loose?
  • Would my policy pay if a helper is burned in the shop?

Name the work you sell

A policy covers the work you describe on the application. Name each kind of work you sell, in the shop and on site, and ask whether any of it is excluded.

Welders, plasma cutters, gas bottles and a rig truck are worth listing on the tools policy.

State rules in the license

Check your state's contractor licensing board before you take on structural or on-site work; some states and cities treat that work as contracting and ask for a license or insurance of their own.

Cities, commercial customers and your contracts can still ask for more than any state rule.

Workers' comp and bonds

The SBA says every business with employees must carry workers' compensation, unemployment and disability insurance. Insureon's average for welders is $175 a month, priced per $100 of payroll. A bond protects the state or the customer, not you; Insureon puts its yearly cost at a share of the bond amount:

Bond amountEstimated yearly cost
$5,000$25 to $500
$10,000$50 to $1,000
$50,000$250 to $5,000

Certificates of insurance

General contractors, property managers, farms and commercial customers often ask for a certificate before you weld on their site. Keep a PDF on your phone so you can send it the day they ask.

Sources

The same guide for other trades: Roofing insurance, Plumbing insurance and HVAC insurance.

Last checked October 9, 2026. This page is general information, not legal or tax advice. Rules change and differ by state and city, so confirm with the agency named before you act.

Shane Allen writes Koira's guides for trade business owners. How we check our numbers.

FAQ

What insurance does a welding business need?

General liability, commercial auto, tools and equipment cover, and workers' compensation once you hire. The claim to ask about first: sparks from a mobile job start a fire at a customer's property.

How much is welding insurance?

Insureon says its customers who are welders pay an average of $167 a month for general liability and $268 a month for commercial auto.

Do I need workers' comp for a one-person welding business?

The SBA rule is for businesses with employees. Once you hire, Insureon's average for welders is $175 a month. Some states and commercial customers ask owners to carry it anyway.

What is the difference between insured and bonded?

Insurance pays for damage and injuries you cause. A bond guarantees to the state or customer that you follow the rules and finish the work, and you pay the surety back for any claim.

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