CallataGuidesBusiness phone system for plumbing, heating and air-conditioning contractors in San Francisco, CA
Plumbing, heating and air-conditioning contractors in the San Francisco-Oakland-Fremont, CA metro area: 1,192 establishments in 2023, the local area codes, and what phone service costs a 14-person team.
- Establishments
- 1,192CBP 2023
- Employees
- 17,189mid-March 2023
- Per 100k residents
- 25.6U.S. 32.7
- Rank
- 14th of 920areas by count
Plumbing, heating and air-conditioning contractors in San Francisco, CA by the numbers
There were 1,192 plumbing, heating and air-conditioning contractors in the San Francisco-Oakland-Fremont, CA metro area in 2023, according to Census County Business Patterns (NAICS 238220, Plumbing, Heating, and Air-Conditioning Contractors). Together they reported 17,189 mid-March employees and $2.0 billion of payroll for the year. That ranks 14th of the 920 metro and micropolitan areas where Census published a count for this industry.
With 4.6 million residents in the Census 2024 estimate, that is 25.6 plumbing, heating and air-conditioning contractors per 100,000 people, 21.6% below the national rate of 32.7. Establishments average 14.4 employees, 32.0% above the U.S. average of 10.9. Payroll per employee comes to $113,449, 53.9% above the national $73,693.
| Measure | San Francisco, CA | California | United States |
|---|---|---|---|
| Establishments | 1,192 | 11,686 | 111,207 |
| Mid-March employees | 17,189 | 126,947 | 1,214,761 |
| Annual payroll | $1,950,070,000 | $10,859,374,000 | $89,519,407,000 |
| Employees per establishment | 14.4 | 10.9 | 10.9 |
| Payroll per employee | $113,449 | $85,543 | $73,693 |
| Establishments per 100,000 residents | 25.6 | 29.6 | 32.7 |
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.
How big plumbing, heating and air-conditioning contractors in San Francisco, CA are
Of the plumbing, heating and air-conditioning contractors in San Francisco, CA that had employees in March 2023, 54.7% had fewer than five (the U.S. share is 58.3%). 73.9% had fewer than ten. Small teams usually share the phone: the person who answers is often also serving a customer or doing the job, which is when calls get missed.
| Employment size | Establishments | Share | U.S. share |
|---|---|---|---|
| 1–4 employees | 651 | 54.7% | 58.3% |
| 5–9 employees | 229 | 19.2% | 18.5% |
| 10–19 employees | 154 | 12.9% | 11.8% |
| 20–49 employees | 97 | 8.1% | 7.5% |
| 50 or more employees | 60 | 5.0% | 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.
What plumbing, heating and air-conditioning contractors in San Francisco, CA use the phone for
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.
Typical inbound and outbound calls for plumbing, heating and air-conditioning contractors in San Francisco, CA:
- The dispatcher calls a customer with a technician's arrival time.
- A tenant calls about a burst pipe.
- A customer calls to book a seasonal tune-up.
When nobody can pick up
Emergency calls at night and on weekends are core business, so after-hours routing to an on-call technician or an AI receptionist that takes details matters.
Business-hours routing in Callata sends calls to voicemail, a teammate's cell or an AI agent once the day ends, and voicemails arrive transcribed with an urgency flag.
What a phone system costs a plumbing and HVAC contractor in San Francisco, CA
The average plumbing and HVAC contractor in San Francisco, CA has 14.4 employees, so a 14-person team is a reasonable benchmark. Per-seat business phone plans bill every one of those people. At month-to-month list prices checked September 28, 2026, 14 users on RingCentral RingEX Core cost $420.00 a month and 14 on Ooma Office Pro cost $349.30. On Callata the same 14 people cost $279.00 a month, less than either per-seat plan.
The annual difference against RingCentral's monthly list price comes to $1,692. Some vendors discount annual contracts; the table shows month-to-month prices.
| Provider (plan) | Pricing basis | Per month | Per year |
|---|---|---|---|
| Callata (Callata Office) | $99 incl. 5 users, $20 per extra user | $279.00 | $3,348.00 |
| Quo (Starter) | $19.00 per user | $266.00 | $3,192.00 |
| Nextiva (Core) | $23.00 per user | $322.00 | $3,864.00 |
| Ooma (Office Pro) | $24.95 per user | $349.30 | $4,191.60 |
| Dialpad (Standard) | $27.00 per user | $378.00 | $4,536.00 |
| RingCentral (RingEX Core) | $30.00 per user | $420.00 | $5,040.00 |
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.
Getting a local number in San Francisco, CA
NANPA records place the exchanges of the area's named cities and towns in 6 area codes. 415 has the most, with 628 of 1,734 exchanges (36%). Callata's plan includes up to 3 local numbers; you can pick them in the area codes your customers recognize, subject to carrier inventory, or port the number you already have for free.
| Area code | Exchanges | Time zone | In service since | Overlay with |
|---|---|---|---|---|
| 415 | 628 | Pacific | 1947 | 628 |
| 925 | 514 | Pacific | 1998 | none |
| 650 | 268 | Pacific | 1997 | none |
| 510 | 170 | Pacific | 1991 | 341 |
| 628 | 131 | Pacific | 2015 | 415 |
| 341 | 23 | Pacific | 2019 | 510 |
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.
What plumbing, heating and air-conditioning contractors in San Francisco, CA get with Callata
Callata Office costs $99 per month for up to 5 people, and each additional user is $20 a month. That covers up to 3 local numbers, calling from a browser or your cell, transcribed voicemail, recorded calls with AI summaries, after-hours routing and E911 on each number.
If you already have a number in San Francisco, CA, porting it to Callata is free. Texting from a local number requires a one-time carrier registration (10DLC, $49), and the numbers available in any area code depend on carrier inventory when you choose them.
Optional AI agents (receptionist, sales, support or scheduler) can answer calls after hours or when nobody picks up, take messages, text, email and transfer to your team. They are billed from prepaid AI minutes at $0.25 per minute, identify themselves as AI, and may only place outbound calls to people who consented, between 8am and 9pm.
Frequently asked questions
How many plumbing, heating and air-conditioning contractors are there in San Francisco, CA?
Census County Business Patterns counted 1,192 plumbing, heating and air-conditioning contractors in the San Francisco-Oakland-Fremont, CA metro area in 2023. They employed 17,189 people in mid-March.
What does a business phone system cost for a 14-person plumbing and HVAC contractor?
At month-to-month list prices checked September 28, 2026, 14 users cost $420.00 a month on RingCentral RingEX Core and $349.30 on Ooma Office Pro. On Callata, $99 a month with 5 users included, then $20 per additional user, the same team pays $279.00.
What area code should a plumbing and HVAC contractor in San Francisco, CA use?
Area code 415 has the most assigned exchanges among the area's named places, followed by 925 and 650. If you already have a local number, you can port it to Callata for free.
Can an AI receptionist answer calls for a plumbing and HVAC contractor?
Yes. Callata's optional AI agents can answer when the team is busy or closed, take a message, text, email or transfer the call. They disclose that they are AI and are billed from prepaid AI minutes at $0.25 per minute.