Pen-and-ink Arizona scene: a stucco house with exposed pipes and a water heater on one side, tall saguaros and a work van on the other, mesas on the horizon.

Arizona plumbing insurance

licensed in
Arizona? here’s
what you need.

The license, the bond and the coverage GCs ask for, in plain English.

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MARKETS WE PLACE THROUGH

the short answer

Arizona plumbing contractors need a Registrar of Contractors license, usually C‑37, R‑37 or the dual CR‑37, plus a license bond and workers’ comp from their first employee. The state doesn’t require general liability, but GCs, property managers and many homeowners usually ask for it.

what Arizona requires.

The rules that come with a plumbing license here.

License: C‑37 for commercial plumbing, R‑37 or R‑37R for residential, or a dual CR‑37 or CR‑77 for both. The class sets the work you can contract for.
Bond: Required for the license. Residential: $4,250, or $7,500 at $375,000 a year or more. Commercial: $2,500 to $50,000 by yearly volume. Dual licenses combine both.
how Arizona bonds work
Workers’ comp: Required from your first employee. The facts of the work decide who counts, not the title on the invoice.
General liability: No state rule. The ROC doesn’t require insurance to license you, apart from workers’ comp. Your contracts set the limits.
Recovery fund: Residential contractors also pay into the Residential Contractors’ Recovery Fund or post a separate bond for it.

Sources: Arizona Registrar of Contractors, A.R.S. §32-1152, A.R.S. §23-902. Last reviewed September 2026.

what your customers will ask for.

Tap a coverage to see what it does on a plumbing job and who asks for it.

What it covers

general liability.

Damage to a customer’s property or injuries to people who aren’t your employees, like a failed fitting that floods a kitchen.

Who asks: GCs, property managers and many homeowners, usually with additional insured wording.

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what’s different about
plumbing in Arizona.

Solar changes the class.
R‑37 residential plumbing includes solar. R‑37R doesn’t. On commercial work, solar sits with C‑77 and the dual CR‑77. Solar jobs bring roofs and equipment into the review, so we ask about them.
Old codes still show up.
Gas piping, sewers and drains, and pool plumbing used to be separate R‑37R codes. The ROC no longer issues them, and that work now sits inside R‑37. We read the class on your record, old code or new.

good to know.

Straight answers for Arizona plumbers.

What license does a plumbing contractor need in Arizona?

Usually a Registrar of Contractors license in a plumbing class: C-37 for commercial work, R-37 or R-37R for residential, or the dual CR-37 to do both on one license. R-37 includes solar and R-37R doesn’t. The ROC sets the scope of each class, so match yours to the work you bid.

Do Arizona plumbers need general liability insurance?

Not to hold an ROC license. The Registrar says that, apart from workers’ comp, it doesn’t require insurance for licensing. In practice, general contractors, property managers and many homeowners ask for it before work starts, often with set limits and additional insured wording. Without it, one water damage claim can land on the business directly.

Do Arizona plumbing contractors need workers’ comp?

Yes, once you have an employee. Arizona requires employers to carry workers’ comp from the first employee, and it’s the one insurance the ROC treats as required. Whether a helper counts depends on the facts of the work, like who sets the hours and whose tools and van, not on what the invoice calls them.

Sources: Arizona Registrar of Contractors, A.R.S. §23-902, A.R.S. §32-1152. Last reviewed September 2026.

Insurance words, in plain English: waiver of subrogation · certificate of insurance · additional insured · primary and noncontributory · hold harmless agreement · contractual liability · per-project aggregate · completed operations