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How do plumbers in New Jersey get more customers from Google and AI search?
Short answer: Plumbers in New Jersey get found online with a website that shows their license number, names the towns they serve such as Newark, Jersey City and Paterson, and collects real local reviews. The state had 3,500 businesses with staff in this Census category in 2022.
- Home improvement contractors must show their registration number (HIC reg.#) in all advertisements, contracts and on vehicles.
- 3,500 businesses with staff in 2022, 8th of 50 states; 81% have fewer than 10 staff.
- Largest cities: Newark, Jersey City and Paterson.
- Common words in local searches: “emergency”, “residential” and “best”.
- Coldest month January (about 32°F), warmest July (about 75°F), statewide average.
Do plumbers need a license in New Jersey?
License or registration types named by the state: Master Plumber.
- Licenses renew every two years with 5 hours of continuing education. A $3,000 surety bond is cited.
Homeowners can check a license on the state lookup page. Put your number where they will look for it.
Contractor registration in New Jersey sits with NJ Division of Consumer Affairs, Home Improvement Contractor registration. Any business making or selling residential home improvements must register yearly with the Division unless exempt. This covers concrete, masonry, fencing and painting at homes. Jobs over $500 need a written contract that shows the registration number.
License numbers in ads and on websites
Home improvement contractors must show their registration number (HIC reg.#) in all advertisements, contracts and on vehicles. Tree care ads must include the business registration number.
We have not yet confirmed the New Jersey rules for this trade from the board's own pages, so this section is still being checked. Ask your state licensing office before you rely on it.
What do homeowners in New Jersey’s biggest cities search for?
Google autocomplete for plumber searches in each city (job-seeker searches removed):
Newark
- heating engineer newark
- newark plumbers merchants
- plumber newark nj
- plumber newark ohio
- plumber newark on trent
- plumbers newark de residential
- plumbers newark nj
- plumbers newark ohio
Jersey City
- best plumber jersey city
- emergency plumber jersey city
- guarini plumbing jersey city
- jersey city emergency plumber
- jersey city plumber & drain
- jersey city plumbing code
- jersey city plumbing department
- jersey city plumbing inspector
Paterson
- cape paterson plumbers
- david paterson plumber west calder
- james paterson plumbers
- paterson plumber orkney
- paterson plumbers denny
- plumber cape paterson
- plumber lainie paterson
- plumber paterson nj
Elizabeth
- plumber elizabeth bay
- plumber elizabeth city
- plumber elizabeth nj
- plumber elizabeth north
- plumber elizabeth sa
Trenton
- plumber trenton nj
- plumber trenton ohio
- plumbers trenton nj
- plumbers trenton ohio
Across these cities, the words that come up most are “emergency”, “residential” and “best”.
Source: Google autocomplete suggestions, checked November 8, 2026. Suggestions change over time.
What does a year of plumber work look like in New Jersey?
Publish each seasonal page four to six weeks ahead.
| Month | Avg temp | Jobs to plan for (our suggestion) |
|---|---|---|
| January | 32°F | frozen and burst pipes, water heater failures |
| February | 34°F | water heater replacements, drain clearing after the thaw |
| March | 41°F | water heater replacements, drain clearing after the thaw |
| April | 52°F | water heater replacements, drain clearing after the thaw |
| May | 61°F | remodel plumbing, outdoor spigots, sewer line inspections |
| June | 70°F | remodel plumbing, outdoor spigots, sewer line inspections |
| July | 75°F | irrigation leaks, water heater checks, emergency leak calls |
| August | 74°F | irrigation leaks, water heater checks, emergency leak calls |
| September | 67°F | remodel plumbing, outdoor spigots, sewer line inspections |
| October | 55°F | remodel plumbing, outdoor spigots, sewer line inspections |
| November | 45°F | water heater replacements, drain clearing after the thaw |
| December | 37°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 New Jersey’s main cities?
| City | County | Businesses with staff | Residents per business |
|---|---|---|---|
| Newark | Essex County | 198 | 4,299 |
| Jersey City | Hudson County | 91 | 7,752 |
| Paterson | Passaic County | 212 | 2,422 |
| Elizabeth | Union County | 213 | 2,689 |
| Trenton | Mercer County | 82 | 4,655 |
Competition is tightest around Paterson (Passaic County), with one business for every 2,422 residents, and loosest around Jersey City, at one per 7,752.
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 New Jersey?
The Census Bureau counted 3,500 businesses with employees in New Jersey in 2022, in the category “Plumbing, heating and air-conditioning contractors”. That ranks New Jersey 8th of 50 states, one of the largest markets in the country, and 3% of the US total. 81% of them have fewer than 10 staff, and 284 have 20 or more.
Together they employ 29,679 people, with an average yearly payroll of $636,223 per business. The three busiest counties hold 32% of them, so the work is spread across the state.
With 9,290,841 residents (Census, July 2023), that is one business for every 2,655 people, against 3,051 nationally: fewer residents per business than the US average, so more competition for each job.
New Jersey next to its neighbors
| State | Businesses | Residents per business | Under 10 staff |
|---|---|---|---|
| New Jersey | 3,500 | 2,655 | 81% |
| Delaware | 335 | 3,080 | 67% |
| New York | 7,089 | 2,761 | 79% |
| Pennsylvania | 4,136 | 3,134 | 77% |
Counties with the most plumbing contractors
| County | Businesses | Residents per business |
|---|---|---|
| Bergen County | 438 | 2,187 |
| Monmouth County | 337 | 1,907 |
| Ocean County | 337 | 1,956 |
| Middlesex County | 281 | 3,073 |
| Morris County | 255 | 2,017 |
| Union County | 213 | 2,689 |
| Passaic County | 212 | 2,422 |
| Essex County | 198 | 4,299 |
| Camden County | 182 | 2,897 |
| Burlington County | 145 | 3,236 |
21 of New Jersey’s counties have at least one. Source: US Census Bureau, County Business Patterns 2022.
How big are they?
Businesses by number of employees, 2022: 2,211 with 1-4 staff, 633 with 5-9 staff, 371 with 10-19 staff, 199 with 20-49 staff, 85 with 50+ staff.
Where New Jersey is growing
New homes and new owners bring new work. New Jersey's population changed +0.2% from July 2020 to July 2023. The fastest-growing counties with 50,000 or more people:
- Ocean County: 659,197 people, +3.2% since 2020, 337 plumbing contractors
- Gloucester County: 308,423 people, +1.9% since 2020, 125 plumbing contractors
- Burlington County: 469,167 people, +1.6% since 2020, 145 plumbing contractors
- Warren County: 111,252 people, +1.6% since 2020, 49 plumbing contractors
- Sussex County: 146,132 people, +1.5% since 2020, 100 plumbing contractors
Source: US Census Bureau, County Population Estimates, Vintage 2023.
Which code applies in New Jersey?
For this trade, New Jersey uses: state plumbing code. New Jersey National Standard Plumbing Code applies; ICC chart shows no IPC.
What should a New Jersey plumber website show?
- Your license or registration number where people can see it, even where the state does not require it in ads.
- A service area list that names real counties and towns, for example Bergen County, Monmouth County and Ocean County.
- Seasonal pages published before April, so they are found when demand starts.
- Real reviews from local jobs, with the town named, and photos of your own work.
New Jersey questions
How many plumbing contractors are there in New Jersey?
The US Census Bureau counted 3,500 businesses with employees in New Jersey in 2022 in the category Plumbing, heating and air-conditioning contractors, and 81% of them have fewer than 10 staff.
Which county in New Jersey has the most plumbing contractors?
Bergen County, with 438 businesses with employees in 2022 (Census County Business Patterns).
Do I need my license number on my website in New Jersey?
Home improvement contractors must show their registration number (HIC reg.#) in all advertisements, contracts and on vehicles. Tree care ads must include the business registration number.
What do people in Newark search for when they need a plumber?
Google autocomplete for Newark shows searches such as “heating engineer newark”, “newark plumbers merchants”, “plumber newark nj” and “plumber newark ohio”.
When is the busiest season for plumbers in New Jersey?
New Jersey’s statewide average runs from about 32°F in January to about 75°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.nj.gov/njbte/licensing/licensing/licensing-te-teo/
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