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How do plumbers in New Hampshire get more customers from Google and AI search?
Short answer: Plumbers in New Hampshire get found online with a website that shows their license number, names the towns they serve such as Manchester, Nashua and Concord, and collects real local reviews. The state had 759 businesses with staff in this Census category in 2022.
- 759 businesses with staff in 2022, 37th of 50 states; 84% have fewer than 10 staff.
- Largest cities: Manchester, Nashua and Concord.
- Common words in local searches: “residential”, “reviews” and “best”.
- Coldest month January (about 19°F), warmest July (about 68°F), statewide average.
- Code edition: 2021 plumbing code.
Do plumbers need a license in New Hampshire?
License or registration types named by the state: Master Plumber; Journeyman Plumber; Apprentice.
Contractor registration in New Hampshire sits with No state general contractor license. Consumers can complain to the Attorney General's Consumer Protection Bureau under RSA 358-A. Concrete, masonry, fencing and painting need no state license.
We have not yet confirmed the New Hampshire 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 Hampshire’s biggest cities search for?
Google autocomplete for plumber searches in each city (job-seeker searches removed):
Manchester
- manchester plumber green party
- manchester plumber mp
- manchester plumbers 24 7 365
- manchester plumbers merchants
- manchester plumbers reviews
- plumber manchester city centre
- plumber manchester nh
- plumbers manchester nh
Nashua
- best plumbers nashua nh
- emergency plumber nashua nh
- local plumber nashua nh
- nashua plumbers tape
- paul the plumber nashua nh
- plumber nashua iowa
- plumber nashua nh
- plumbers nashua nh
Concord
- plumber concord nh
- plumber concord west
- plumbers concord nh
- plumbers concord nh residential
Rochester
- plumber rochester hills
- plumber rochester nh
- plumbers rochester nh
- plummer house rochester
Dover
- plumber dover foxcroft maine
- plumber dover heights
- plumber dover kent
- plumber dover nh
- plumber dover ohio
- plumber dover tasmania
- plumbers dover de residential
- plumbers dover foxcroft maine
Across these cities, the words that come up most are “residential”, “reviews”, “best” and “emergency”.
Source: Google autocomplete suggestions, checked November 8, 2026. Suggestions change over time.
What does a year of plumber work look like in New Hampshire?
Publish each seasonal page four to six weeks ahead.
| Month | Avg temp | Jobs to plan for (our suggestion) |
|---|---|---|
| January | 19°F | frozen and burst pipes, water heater failures |
| February | 21°F | frozen and burst pipes, water heater failures |
| March | 30°F | frozen and burst pipes, water heater failures |
| April | 42°F | water heater replacements, drain clearing after the thaw |
| May | 54°F | water heater replacements, drain clearing after the thaw |
| June | 63°F | remodel plumbing, outdoor spigots, sewer line inspections |
| July | 68°F | remodel plumbing, outdoor spigots, sewer line inspections |
| August | 66°F | remodel plumbing, outdoor spigots, sewer line inspections |
| September | 58°F | remodel plumbing, outdoor spigots, sewer line inspections |
| October | 47°F | water heater replacements, drain clearing after the thaw |
| November | 36°F | water heater replacements, drain clearing after the thaw |
| December | 25°F | frozen and burst pipes, water heater failures |
Temperatures: NOAA NCEI nClimDiv statewide data. Job column: our planning suggestion, not survey data.
How many plumbing contractors compete in New Hampshire’s main cities?
| City | County | Businesses with staff | Residents per business |
|---|---|---|---|
| Manchester | Hillsborough County | 214 | 1,997 |
| Nashua | Hillsborough County | 214 | 1,997 |
| Concord | Merrimack County | 93 | 1,689 |
| Rochester | Strafford County | 49 | 2,719 |
| Dover | Strafford County | 49 | 2,719 |
Competition is tightest around Concord (Merrimack County), with one business for every 1,689 residents, and loosest around Rochester, at one per 2,719.
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 Hampshire?
The Census Bureau counted 759 businesses with employees in New Hampshire in 2022, in the category “Plumbing, heating and air-conditioning contractors”. That ranks New Hampshire 37th of 50 states, one of the smaller markets, and 1% of the US total. 84% of them have fewer than 10 staff, and 56 have 20 or more.
Together they employ 5,474 people, with an average yearly payroll of $549,590 per business. The three busiest counties hold 68% of them, so competition is packed into a few places.
With 1,402,054 residents (Census, July 2023), that is one business for every 1,847 people, against 3,051 nationally: fewer residents per business than the US average, so more competition for each job.
New Hampshire next to its neighbors
| State | Businesses | Residents per business | Under 10 staff |
|---|---|---|---|
| New Hampshire | 759 | 1,847 | 84% |
| Maine | 751 | 1,858 | 87% |
| Massachusetts | 3,093 | 2,264 | 80% |
| Vermont | 300 | 2,158 | 83% |
Counties with the most plumbing contractors
| County | Businesses | Residents per business |
|---|---|---|
| Hillsborough County | 214 | 1,997 |
| Rockingham County | 212 | 1,513 |
| Merrimack County | 93 | 1,689 |
| Strafford County | 49 | 2,719 |
| Grafton County | 46 | 2,025 |
| Carroll County | 44 | 1,192 |
| Belknap County | 38 | 1,711 |
| Cheshire County | 37 | 2,100 |
| Sullivan County | 20 | 2,198 |
| Coos County | 6 | 5,229 |
10 of New Hampshire’s counties have at least one. Source: US Census Bureau, County Business Patterns 2022.
How big are they?
Businesses by number of employees, 2022: 533 with 1-4 staff, 106 with 5-9 staff, 63 with 10-19 staff, 40 with 20-49 staff, 16 with 50+ staff.
Where New Hampshire is growing
New homes and new owners bring new work. New Hampshire's population changed +1.7% from July 2020 to July 2023. The fastest-growing counties with 50,000 or more people:
- Carroll County: 52,448 people, +4.4% since 2020, 44 plumbing contractors
- Grafton County: 93,146 people, +2.1% since 2020, 46 plumbing contractors
- Merrimack County: 157,103 people, +2.0% since 2020, 93 plumbing contractors
- Belknap County: 65,027 people, +2.0% since 2020, 38 plumbing contractors
- Rockingham County: 320,689 people, +1.9% since 2020, 212 plumbing contractors
Source: US Census Bureau, County Population Estimates, Vintage 2023.
Which code applies in New Hampshire?
New Hampshire uses the 2021 edition of the plumbing code (Per ICC April 2026 adoption chart; not cross-checked with the state). Homeowners rarely ask about code editions, but inspectors do, and a line on your service pages saying your work meets the current 2021 code answers the question before it comes up.
What should a New Hampshire 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 Hillsborough County, Rockingham County and Merrimack County.
- Seasonal pages published before May, so they are found when demand starts.
- Real reviews from local jobs, with the town named, and photos of your own work.
New Hampshire questions
How many plumbing contractors are there in New Hampshire?
The US Census Bureau counted 759 businesses with employees in New Hampshire in 2022 in the category Plumbing, heating and air-conditioning contractors, and 84% of them have fewer than 10 staff.
Which county in New Hampshire has the most plumbing contractors?
Hillsborough County, with 214 businesses with employees in 2022 (Census County Business Patterns).
Which edition of the plumbing code does New Hampshire use?
The 2021 edition. Per ICC April 2026 adoption chart; not cross-checked with the state.
What do people in Manchester search for when they need a plumber?
Google autocomplete for Manchester shows searches such as “manchester plumber green party”, “manchester plumber mp”, “manchester plumbers 24 7 365” and “manchester plumbers merchants”.
When is the busiest season for plumbers in New Hampshire?
New Hampshire’s statewide average runs from about 19°F in January to about 68°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
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