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How do plumbers in Arizona get more customers from Google and AI search?
Short answer: Plumbers in Arizona get found online with a website that shows their license number, names the towns they serve such as Phoenix, Tucson and Mesa, and collects real local reviews. Licensing runs through the Arizona Registrar of Contractors (ROC). The state had 2,484 businesses with staff in this Census category in 2022.
- Licensing body: Arizona Registrar of Contractors (ROC).
- Licensed contractors must show their ROC license number with the 'ROC' prefix on print ads, bids, estimates, contracts and letterhead.
- 2,484 businesses with staff in 2022, 15th of 50 states; 76% have fewer than 10 staff.
- Largest cities: Phoenix, Tucson and Mesa.
- Common words in local searches: “reviews”, “residential” and “emergency”.
- Coldest month December (about 42°F), warmest July (about 81°F), statewide average.
Do plumbers need a license in Arizona?
In Arizona, the licensing body for this work is Arizona Registrar of Contractors (ROC).
License or registration types named by the state: R-37 Plumbing (including solar); R-37R Plumbing; C-37 Commercial Plumbing.
- The ROC licenses plumbing contractors. There is no separate state plumbing board.
- Work of $1,000 or more, or any work needing a local permit, requires a license.
Homeowners can check a license on the state lookup page. Put your number where they will look for it.
Contractor registration in Arizona sits with Arizona Registrar of Contractors (ROC). A license is required for any work with a contract price of $1,000 or more, or any work needing a local building permit. Bonds scale by volume and classification. A dual license adds the commercial and residential bonds together.
License numbers in ads and on websites
Licensed contractors must show their ROC license number with the 'ROC' prefix on print ads, bids, estimates, contracts and letterhead. Since 2021, vehicle, radio, internet and billboard ads may instead include a web address that leads to a page showing the license number (A.R.S. 32-1124(B)(4)).
What do homeowners in Arizona’s biggest cities search for?
Google autocomplete for plumber searches in each city (job-seeker searches removed):
Phoenix
- phoenix plumbers & drain clean services
- phoenix plumbers bridport
- phoenix plumbers chrishall
- phoenix plumbers largs reviews
- phoenix plumbers reviews
- phoenix plumbers today
- plumber phoenix az
- plumber phoenix durban
Tucson
- plumber tucson az
- plumber tucson prices
- plumber tucson residential
- plumbers tucson free estimates
- plumbing tucson az
- tucson plumber reviews
- tucson plumbers residential
- tucson plumbers residential reviews
Mesa
- costa mesa plumber
- emergency plumber mesa az
- mesa plumbers az
- mira mesa plumber
- plumber costa mesa
- plumber mesa arizona
- plumber mesa az
- plumber mesa az residential
Chandler
- chandler emergency plumber
- chandler plumbers reviews
- david chandler plumber
- david chandler plumber uxbridge reviews
- heating engineer chandlers ford
- homeservice plumbers chandler reviews
- matt chandler plumber
- plumber chandler az
Gilbert
- colin gilbert plumber
- emergency plumber gilbert az
- gilbert plumbers cape town
- gilbert plumbers reviews
- pete gilbert plumber
- pete gilbert plumber essex
- peter gilbert plumber
- plumber gilbert az
Across these cities, the words that come up most are “reviews”, “residential”, “emergency” and “cost”.
Source: Google autocomplete suggestions, checked November 8, 2026. Suggestions change over time.
What does a year of plumber work look like in Arizona?
Publish each seasonal page four to six weeks ahead.
| Month | Avg temp | Jobs to plan for (our suggestion) |
|---|---|---|
| January | 43°F | water heater replacements, drain clearing after the thaw |
| February | 46°F | water heater replacements, drain clearing after the thaw |
| March | 52°F | water heater replacements, drain clearing after the thaw |
| April | 58°F | remodel plumbing, outdoor spigots, sewer line inspections |
| May | 67°F | remodel plumbing, outdoor spigots, sewer line inspections |
| June | 76°F | irrigation leaks, water heater checks, emergency leak calls |
| July | 81°F | irrigation leaks, water heater checks, emergency leak calls |
| August | 79°F | irrigation leaks, water heater checks, emergency leak calls |
| September | 74°F | irrigation leaks, water heater checks, emergency leak calls |
| October | 62°F | remodel plumbing, outdoor spigots, sewer line inspections |
| November | 51°F | water heater replacements, drain clearing after the thaw |
| December | 42°F | water heater replacements, drain clearing after the thaw |
Temperatures: NOAA NCEI nClimDiv statewide data. Job column: our planning suggestion, not survey data.
How many plumbing contractors compete in Arizona’s main cities?
| City | County | Businesses with staff | Residents per business |
|---|---|---|---|
| Phoenix | Maricopa County | 1,558 | 2,943 |
| Tucson | Pima County | 338 | 3,145 |
| Mesa | Maricopa County | 1,558 | 2,943 |
| Chandler | Maricopa County | 1,558 | 2,943 |
| Gilbert | Maricopa County | 1,558 | 2,943 |
Competition is tightest around Phoenix (Maricopa County), with one business for every 2,943 residents, and loosest around Tucson, at one per 3,145.
Source: US Census Bureau, County Business Patterns 2022 and County Population Estimates 2023. Counts businesses with paid employees only.
How many plumbing contractors are in Arizona?
The Census Bureau counted 2,484 businesses with employees in Arizona in 2022, in the category “Plumbing, heating and air-conditioning contractors”. That ranks Arizona 15th of 50 states, a mid-sized market, and 2% of the US total. 76% of them have fewer than 10 staff, and 295 have 20 or more.
Together they employ 31,846 people, with an average yearly payroll of $871,589 per business. The three busiest counties hold 81% of them, so competition is packed into a few places.
With 7,431,344 residents (Census, July 2023), that is one business for every 2,992 people, against 3,051 nationally: close to the US average.
Arizona next to its neighbors
| State | Businesses | Residents per business | Under 10 staff |
|---|---|---|---|
| Arizona | 2,484 | 2,992 | 76% |
| California | 11,334 | 3,438 | 79% |
| Colorado | 2,577 | 2,281 | 80% |
| Nevada | 863 | 3,701 | 67% |
| New Mexico | 670 | 3,156 | 78% |
| Utah | 1,407 | 2,429 | 78% |
Counties with the most plumbing contractors
| County | Businesses | Residents per business |
|---|---|---|
| Maricopa County | 1,558 | 2,943 |
| Pima County | 338 | 3,145 |
| Yavapai County | 124 | 2,009 |
| Pinal County | 119 | 4,069 |
| Mohave County | 99 | 2,259 |
| Yuma County | 65 | 3,280 |
| Coconino County | 52 | 2,778 |
| Cochise County | 41 | 3,040 |
| Navajo County | 34 | 3,211 |
| Gila County | 21 | 2,572 |
14 of Arizona’s counties have at least one. Source: US Census Bureau, County Business Patterns 2022.
How big are they?
Businesses by number of employees, 2022: 1,425 with 1-4 staff, 474 with 5-9 staff, 289 with 10-19 staff, 175 with 20-49 staff, 120 with 50+ staff.
Where Arizona is growing
New homes and new owners bring new work. Arizona's population changed +3.4% from July 2020 to July 2023. The fastest-growing counties with 50,000 or more people:
- Pinal County: 484,239 people, +12.6% since 2020, 119 plumbing contractors
- Yavapai County: 249,081 people, +5.0% since 2020, 124 plumbing contractors
- Mohave County: 223,682 people, +4.4% since 2020, 99 plumbing contractors
- Yuma County: 213,221 people, +3.7% since 2020, 65 plumbing contractors
- Maricopa County: 4,585,871 people, +3.2% since 2020, 1,558 plumbing contractors
Source: US Census Bureau, County Population Estimates, Vintage 2023.
Which code applies in Arizona?
Arizona has no single statewide edition of the plumbing code. Cities and counties adopt their own, so say which edition applies in the towns you serve.
What should an Arizona plumber website show?
- Your license number in the footer of every page. Arizona requires it in advertising for at least some trades.
- A service area list that names real counties and towns, for example Maricopa County, Pima County and Yavapai County.
- Seasonal pages published before March, so they are found when demand starts.
- Real reviews from local jobs, with the town named, and photos of your own work.
Arizona questions
Who licenses plumbers in Arizona?
Arizona Registrar of Contractors (ROC). The ROC licenses plumbing contractors. There is no separate state plumbing board. Work of $1,000 or more, or any work needing a local permit, requires a license.
How many plumbing contractors are there in Arizona?
The US Census Bureau counted 2,484 businesses with employees in Arizona in 2022 in the category Plumbing, heating and air-conditioning contractors, and 76% of them have fewer than 10 staff.
Which county in Arizona has the most plumbing contractors?
Maricopa County, with 1,558 businesses with employees in 2022 (Census County Business Patterns).
Do I need my license number on my website in Arizona?
Licensed contractors must show their ROC license number with the 'ROC' prefix on print ads, bids, estimates, contracts and letterhead. Since 2021, vehicle, radio, internet and billboard ads may instead include a web address that leads to a page showing the license number (A.R.S. 32-1124(B)(4)).
What do people in Phoenix search for when they need a plumber?
Google autocomplete for Phoenix shows searches such as “phoenix plumbers & drain clean services”, “phoenix plumbers bridport”, “phoenix plumbers chrishall” and “phoenix plumbers largs reviews”.
When is the busiest season for plumbers in Arizona?
Arizona’s statewide average runs from about 42°F in December to about 81°F in July (NOAA, 1991 to 2020).
Sources
- US Census Bureau, County Business Patterns 2022 (state and county files)
- US Census Bureau, City, Town and County Population Estimates, Vintage 2023
- NOAA NCEI, nClimDiv statewide temperature and degree days, 1991 to 2020
- Google autocomplete suggestions for the cities named, checked November 2026
- https://www.azleg.gov/ars/32/01121.htm
- https://www.suretybondsdirect.com/blog/arizona-contractors-license-classifications
- https://www.azroc.gov/news/changes-arizona-law-regarding-advertising-requirements-contractors
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