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Business phone system for plumbing, heating and air-conditioning contractors in Wisconsin

1,944 plumbing, heating and air-conditioning contractors operated in Wisconsin in 2023. Where they are, how big their teams are, and what phone service costs them.

Establishments
1,944CBP 2023
Employees
23,507mid-March 2023
Per 100k residents
32.6U.S. 32.7
State rank
19th of 51by count

Plumbing, heating and air-conditioning contractors in Wisconsin by the numbers

The Census Bureau counted 1,944 plumbing, heating and air-conditioning contractors in Wisconsin in its 2023 County Business Patterns (NAICS 238220). They employed 23,507 people in mid-March and reported $1.8 billion in annual payroll. That is the 19th highest count among the 51 states and DC with published figures. Plumbing, heating and air-conditioning contractors make up 1.3% of the 144,774 business establishments in the state.

Per 100,000 residents (2024 estimate) Wisconsin has 32.6 plumbing, heating and air-conditioning contractors, in line with the national rate of 32.7. The average establishment has 12.1 employees against 10.9 nationally. Payroll per employee is $78,674, 6.8% above the U.S. figure of $73,693.

Plumbing, heating and air-conditioning contractors: Wisconsin compared with the U.S., 2023
MeasureWisconsinUnited States
Establishments1,944111,207
Mid-March employees23,5071,214,761
Annual payroll$1,849,380,000$89,519,407,000
Employees per establishment12.110.9
Payroll per employee$78,674$73,693
Establishments per 100,000 residents32.632.7

Census County Business Patterns 2023 (mid-March employment; annual payroll). Employees and payroll flagged high-noise are shown but not used in the text. Residents: Census Vintage 2024 estimates.

Where plumbing, heating and air-conditioning contractors in Wisconsin are concentrated

Census published plumbing and HVAC contractor counts for 29 metro or micropolitan areas that include part of Wisconsin. The largest is Minneapolis, MN-WI, with 1,015 establishments (a multi-state area; its count covers every state it spans). Single-state metro and micropolitan areas account for 78% of the statewide total; the rest are outside any published area or in areas Census suppressed.

Plumbing, heating and air-conditioning contractors by metro or micropolitan area, Wisconsin, 2023
AreaEstablishmentsEmployeesPer 100k residents
Minneapolis, MN-WI1,01512,97627.0
Milwaukee, WI4016,17925.5
Madison, WI1863,54326.3
Green Bay, WI1111,88933.2
Appleton, WI1012,29140.6
Duluth, MN-WI1001,52535.5
Racine, WI6766733.7
La Crosse, WI-MN6459537.5
Oshkosh, WI5652532.3
Wausau, WI5450238.8
Fond du Lac, WI5092548.0
Whitewater, WI4934846.2
Janesville, WI4633427.8
Eau Claire, WI4549225.5
Sheboygan, WI3941733.0
Baraboo, WI3728655.7
Beaver Dam, WI3422238.4
Watertown, WI3416539.4
Kenosha, WI3244219.0
Manitowoc, WI2819434.4
Wisconsin Rapids, WI2644035.2
Marinette, WI-MI2616539.8
Platteville, WI239644.0
Stevens Point, WI1916426.4
Rice Lake, WI1910040.6

Top 25 of 29 areas by establishments. Source: Census CBP 2023.

Team sizes at plumbing, heating and air-conditioning contractors in Wisconsin

55.1% of Wisconsin's plumbing, heating and air-conditioning contractors with employees had fewer than five people in March 2023, compared with 58.3% nationally. 74.5% had fewer than ten. At that size the phone is shared, so routing (who rings, when, and what happens after hours) matters more than the number of desk phones.

Plumbing, heating and air-conditioning contractors in Wisconsin by employment size, 2023
Employment sizeEstablishmentsShareU.S. share
1–4 employees1,07255.1%58.3%
5–9 employees37719.4%18.5%
10–19 employees26313.5%11.8%
20–49 employees1568.0%7.5%
50 or more employees763.9%3.8%

Employment-size classes count establishments by mid-March 2023 employment. Establishments with no March employees are excluded from the size classes, so shares are of establishments with employees. Source: Census County Business Patterns 2023.

Why the phone matters for plumbing, heating and air-conditioning contractors in Wisconsin

Plumbing and HVAC calls are often emergencies: no heat, no cooling or water where it should not be. Homeowners call down a list until someone answers, so a missed call is frequently a lost job. That holds for plumbing, heating and air-conditioning contractors in Wisconsin as much as anywhere.

Typical inbound and outbound calls for plumbing, heating and air-conditioning contractors in Wisconsin:

Business texting for plumbing, heating and air-conditioning contractors

Contractors text arrival windows, technician names and invoices.

Texting from a local number in Wisconsin requires carrier registration (10DLC), a one-time $49 fee on Callata.

Phone system pricing for a 12-person plumbing and HVAC contractor

Plumbing, heating and air-conditioning contractors in Wisconsin average 12.1 employees, so the comparison uses a 12-person team. On a per-user plan that headcount sets the bill: $299.40 a month on Ooma Office Pro or $360.00 on RingCentral RingEX Core at list price (checked September 28, 2026). Callata comes to $239.00 a month for 12 users ($99 a month with 5 users included, then $20 per additional user), below both.

Over a year, that is $1,452 less than RingCentral for a plumbing and HVAC contractor in Wisconsin of that size. Annual contracts lower some competitors' prices, so compare the plan you would actually sign.

Monthly list price for a 12-person plumbing and HVAC contractor
Provider (plan)Pricing basisPer monthPer year
Callata (Callata Office)$99 incl. 5 users, $20 per extra user$239.00$2,868.00
Quo (Starter)$19.00 per user$228.00$2,736.00
Nextiva (Core)$23.00 per user$276.00$3,312.00
Ooma (Office Pro)$24.95 per user$299.40$3,592.80
Dialpad (Standard)$27.00 per user$324.00$3,888.00
RingCentral (RingEX Core)$30.00 per user$360.00$4,320.00

Competitor prices are each vendor's published month-to-month list price per user for its lowest plan that includes business calling and texting, checked September 28, 2026: Quo Starter $19, Nextiva Core $23, Ooma Office Pro $24.95 (Essentials excludes texting; one-time $29.95 activation not included), Dialpad Standard $27, RingCentral RingEX Core $30 ($20 billed annually). Prices exclude taxes and fees and may change; annual contracts lower some competitors' prices.

Area codes in Wisconsin

Wisconsin has 8 geographic area codes in service according to NANPA. Callata includes up to 3 local numbers, so a plumbing and HVAC contractor can hold a number in more than one of them.

Area codes in Wisconsin by assigned exchanges
Area codeExchangesTime zoneIn service sinceOverlay with
608785Central1955353
715785Central1947534
920785Central1997274
262634Central1999none
414552Central1947none
53498Central2010715
27429Central2023920
35313Central2023608

Exchanges are NANPA-assigned central office codes (NPA-NXX) in the rate centers matched to the area's named places. Source: NANPA utilized code and NPA reports.

How Callata works for plumbing, heating and air-conditioning contractors in Wisconsin

For $99 a month, Callata puts a team of up to 5 on one plan ($20 for each person after that): up to 3 local numbers, unlimited inbound calls, a pooled allowance of 1,500 outbound US and Canada minutes per user, browser and cell calling, voicemail transcription with urgency triage, recorded calls with AI summaries and business-hours routing, with E911 on every number.

Porting a number you already use in Wisconsin is free, and business texting is available once the carrier registration (10DLC) is approved; the registration carries a one-time $49 fee. Which specific numbers are open in a given area code depends on carrier inventory at the time you sign up.

AI agents are optional: an AI receptionist or scheduler can pick up when the team is busy or closed, take a message, send a text or email, or transfer the call. They draw on prepaid AI minutes ($0.25/minute), disclose that they are AI, and outbound AI calls require prior consent and are limited to 8am–9pm.

Frequently asked questions

How many plumbing, heating and air-conditioning contractors are in Wisconsin?

1,944 in 2023, according to Census County Business Patterns. They employed 23,507 people in mid-March.

Which Wisconsin metro area has the most plumbing, heating and air-conditioning contractors?

Minneapolis, MN-WI, with 1,015 establishments in 2023.

What does a phone system cost a 12-person plumbing and HVAC contractor?

$360.00 a month on RingCentral RingEX Core or $299.40 on Ooma Office Pro at month-to-month list prices (checked September 28, 2026); $239.00 on Callata ($99 a month with 5 users included, then $20 per additional user).

Do I need to register to text customers from a Wisconsin number?

Yes. US carriers require business texting from local numbers to be registered (10DLC). On Callata the registration is a one-time $49 fee, and texting turns on once it is approved.