Step by step. Official links included.

How to start a plumbing business in Arizona

A plumber repairing the pipes under a kitchen sink

This is not legal, tax, or insurance advice. Read the official pages linked here. Partner offers are optional and labeled.

Pick the calls you already know how to finish: drains and water heaters, or repipes, not all of them in week one. Write the referrals down. Gas, boilers, and sewer cameras can wait until they are honestly on the truck. In Arizona the first customers are in Phoenix. Phoenix plumbing is heat and minerals.

Arizona's desert heat runs the cooling season for most of the year, monsoon storms are short, and UV ages roofs, paint, and plastic parts. Hard water shows up in heaters and fixtures. A lawn-and-furnace page from a wet climate will not sound local.

File an LLC with the Arizona Corporation Commission. We do not have a filing fee for Arizona that we are willing to print. The Arizona Corporation Commission publishes it. Sole proprietors who operate under their own name often skip this filing. Confirm that on the same site.

Some boxes are labeled Partner. ServiceBase has not joined those programs. The links go to each company's own homepage, not a tracking link. If a program later approves us, the address will change and we may earn a commission. You can file, insure, and bank anywhere. Official government links are not partner links. Nothing on this page is a discount code.

$500 in free advertising when you launch

Keep the checklist on your account

The guide stays public. An account saves your state, city, and trade, and lets you mark each filing as you go. The advertising credit is reserved when you register. It can be spent after the free website is live.

Create a free account to track your progress
  1. 01Choose a name in Arizona

    The name should sound like a plumber a neighbor would recommend. Search the state filing office and the license board, because the name on the license and the name on the invoice have to match. Spell it the way you will answer the phone at night.

    Search that name at the Arizona Corporation Commission before you print shirts. Use the same spelling on the truck and on a quote in Phoenix.

  2. 02Form the LLC or stay a sole proprietor

    You can start as a sole proprietor if the state lets the license sit in your own name. Form an LLC when you want the company on the license, the van, and the bank account, and when the board's qualifier rules allow it. Read those rules first. An LLC does not authorize an apprentice to pull permits. File with the state before you apply for an EIN if you are forming the company.

    We do not have a filing fee for Arizona that we are willing to print. The Arizona Corporation Commission publishes it. Sole proprietors who operate under their own name often skip this filing. Confirm that on the same site.

  3. 03Get a free EIN from the IRS

    An employer identification number is the business tax ID. The IRS issues it online at no charge and says you never have to pay a company to get one. If you form an LLC, file with the state first. The IRS says an EIN application can stall when the state filing is not done. A sole proprietor can often start with a Social Security number and get an EIN when a bank or a hire requires it.

    Apply on the IRS page if you want the number yourself. LegalZoom, the partner beside this step, can request it while they form the company. That service is optional. The IRS fee is still zero either way.

  4. 04Check the plumber license in Arizona

    Arizona licenses contractors through the Registrar of Contractors. We could not load that site from here, so this page does not link it. Look up the Registrar on the state's own website and read the page before you pay anyone to file the license.

    Read the plumbing board for the exam, the hours, and who may pull a permit. Then check the city for water-heater and sewer permits. The license number belongs on the site next to the phone.

    Find the plumbing classification at the Arizona Registrar of Contractors on the state's own site. We could not confirm a direct URL from here. Hard water and water heaters are the daily work in Phoenix. The city permit is still required when the city says so.

    A city or county can require its own registration even when the state page is quiet. The city guides name the local permit counter. Call that office and write down what they say. Do not pay a third party that promises a license until you have read the official page.

  5. 05Insure the work

    General liability that names plumbing, including water damage. Commercial auto for the van. Workers' compensation before a second person is in a crawl space or an attic. A water-heater job can become a claim weeks later, so ask the insurer about completed operations and keep the certificate current.

    Workers' compensation is a state program. Before anyone works with you, including a friend, ask an insurer and the state labor office whether you must carry it. This guide does not quote a headcount, because those rules differ and the state page is the source. The SBA page describes the common policies. It does not sell them. Buy the policy before you work in a house in Arizona.

  6. 06Open a business bank account

    Parts houses and permit fees belong on the business account. Emergency work pays in bursts. Move tax money the day the deposit clears so a slow week does not spend it. The account name should match the name on the invoice you text the customer.

    The bank will usually ask for your ID, the EIN or your Social Security number, and the formation papers if you filed an LLC. A checking account and a habit of setting tax money aside are enough at the start.

  7. 07Price the work Arizona actually has

    Publish a service-call or diagnostic price, and quote the repair after you see it. Drains, water heaters, slab leaks, and fixtures are different visits. Say whether after-hours is a real dispatch or the next morning.

    The housing decides the price more than a national rate sheet. An attic heater, a boiler, a stack in a rowhouse, and a slab leak are not one line item. Name the one you want, and refer the one you do not.

    Phoenix: extreme dry heat, a short monsoon, and UV that destroys roofing underlayment, paint, and plastic parts Water heaters, slab leaks, softener and recirculation work, and drain cleaning.

  8. 08Get found, then create the free site

    Google Business Profile with the license and the neighborhoods you will drive at night. Reviews that say 'slab leak in Meyerland' are worth more than 'great guy.' The website names the failures, and the form asks what is leaking and whether water is still moving. ServiceBase files that request so you can call it back when you are out from under a house.

    In Phoenix, the profile, the reviews, and the site should name the neighborhoods you actually drive. ServiceBase publishes the page and keeps quote requests in a list on your account. No card. It does not file the LLC, get the EIN, or buy the insurance.

Create my free site

$500 in free advertising when you launch

Signup asks for an email and a password. No card. This guide opens the next step with the trade filled in. You can change every line after.

Questions

How much does an LLC cost in Arizona?

We do not have a filing fee for Arizona that we are willing to print. The Arizona Corporation Commission publishes it. Sole proprietors who operate under their own name often skip this filing. Confirm that on the same site.

What license does a plumber need in Arizona?

Arizona licenses contractors through the Registrar of Contractors. We could not load that site from here, so this page does not link it. Look up the Registrar on the state's own website and read the page before you pay anyone to file the license. Read the plumbing board for the exam, the hours, and who may pull a permit. Then check the city for water-heater and sewer permits. The license number belongs on the site next to the phone.

Where should a new plumbing business start in Arizona?

Start where you can reach the stops in a day. The city guides cover Phoenix. In summer the first reply wins the AC call. A statewide claim is a weak service area.

Is the EIN free?

Yes. Use the IRS link in the steps if you want the number yourself. LegalZoom, the partner on the EIN step, can request it while they form the company. That service is optional. The IRS fee is still zero.

City guides in Arizona

All plumbing business steps · Plumbing website guide

Free monthly lead-gen checklist

For home-service owners. We save your email. This form does not send the checklist.

Free monthly lead-gen checklist for home-service owners. We store the address. This form does not send email.

Prefer a one-time score? The AI visibility checklist stays in this browser. It is not emailed.