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HVAC and Plumbing Answering Service Costs in 2026
The first cold nights fill every line at once. What it costs to have each no-heat call and frozen pipe answered by a dispatcher, a live answering service or an AI, priced for one made-up 6-van firm.
The short answer
A live answering service for an HVAC or plumbing company starts at $44 a month plus $1.54 a minute (Specialty Answering Service) or $49 plus $1.37 a minute (MAP Communications). For a firm that leaves 250 calls a month unanswered, published prices put a person on those calls for $649 to $2,100 a month. AI receptionists cost $149 to about $501, and an AI agent on your own number less again. An evening dispatcher for 20 hours a week costs about $2,100 a month in wages. Prices checked 3 November 2026.
The first properly cold night of the year has a sound in a heating office: every line lit before 07:30. Furnaces idle since April are asked to work, and some refuse. When the freeze settles in, the plumbers get their turn: frozen pipes, then burst ones at the thaw.
The people who fix these things are on call for exactly this. The Bureau of Labor Statistics says HVAC technicians “may be on call for emergencies” in the peak heating and cooling seasons (BLS), and that plumbers “are often on call for emergencies, so evening and weekend work is common” (BLS). This guide asks who picks up the phone before the tech does, and what that costs. For how an AI agent books visits and estimates, see our pages on AI for HVAC companies and AI for plumbers.
What homeowners call about in winter
Sort a month of a heating and plumbing firm’s calls and they fall into three piles, each wanting a different kind of answer.
- Emergencies. No heat with a baby or an elderly parent in the house, a frozen or burst pipe, water through a ceiling. They come at any hour and bunch together: the first cold night, the morning after a deep freeze, the thaw. They need your on-call person within minutes, and a smell of gas needs the gas company first.
- Work you can book. Tune-ups, a diagnostic visit for a noisy unit, a quote for a new system or water heater. Homeowners ask after work, at weekends and on Sunday evening. None of it is urgent, all of it is revenue, and it goes to whoever answers first.
- Questions with a written answer. Do you cover my town? What does a call-out cost? Do you service Carrier? Are you open Saturday? These pull your dispatcher off the board in a cold snap, and each has an answer you could write down once.
Before you buy anything, count four weeks of missed calls in each pile. The emergencies tell you how good your on-call route must be; the other two, how much of the bill a written answer would settle.
HVAC and plumbing answering services, priced
US dollars, monthly billing, read on each publisher’s own page.
| Option | How it charges | Entry price | Worth knowing |
|---|---|---|---|
| Evening dispatcher (hire) | Hourly wage | $24.20 an hour median | BLS 2025 wage for dispatchers outside the emergency services, before payroll costs |
| MAP Communications (people) | Minutes a month | $49 plus $1.37 a minute | Premium is $649 for 500 minutes. 24/7, no long-term contract |
| Specialty Answering Service (people) | Minutes, billed by the second | $44 plus $1.54 a minute | 500 minutes for $649. Patching a caller to you is $0.10 a minute |
| AnswerConnect (people) | Minutes, rounded up per call | $350 for 200 minutes, plus $49.99 setup | 550 minutes for $795, then $1.85 a minute. 24/7 |
| Ruby (people) | Minutes a month | $250 for 50 minutes | Largest published plan 500 minutes for $1,725. Spanish and bilingual answering |
| Smith.ai receptionists (people) | Calls a month | $300 for 30 calls | Pro is $2,100 for 300 calls. A call at 2 am costs the same as at 2 pm |
| Rosie (AI) | Minutes a month | $49 for 250 minutes | Scale, $149 for 1,000 minutes, adds calendar booking and live transfers |
| Smith.ai AI Receptionist (AI) | Calls a month | Free for 25 calls; Pro $150 for 75 | $1.67 a call on its 300-call option |
| Your own Twilio number, for an AI agent | Per number and per minute | $1.15 a month for a local number | $0.0085 a minute for incoming calls, speech recognition $0.02 per use, plus the AI software |
The sources: MAP Communications, Specialty Answering Service, AnswerConnect, Ruby, Smith.ai receptionists, Smith.ai AI Receptionist, Rosie, the dispatcher wage and Twilio. A receptionist costs less per hour, a BLS median of $18.27 (May 2025).
Read how each one charges before the price. Specialty Answering Service bills by the second. AnswerConnect rounds every call up to the next minute, which on short calls adds about half a minute each. Smith.ai charges per call, so a 40-second “are you open Saturday?” costs the same as a ten-minute emergency. Each model suits a different mix of calls.
Each live service has a real strength. MAP and Specialty Answering Service both have pages for HVAC firms. Ruby answers in Spanish and English at any hour. Smith.ai does not bill spam or wrong numbers when caller ID comes through. And a trained person is the best answer to a frightened caller.
Worked example: a 6-van firm in December
Copperline Heating & Plumbing is a firm we made up for this example: four heating engineers, two plumbers, six vans. One dispatcher works from 08:00 to 17:00, Monday to Friday, which is 45 hours of a 168-hour week. Outside those hours the techs take turns on call.
In December, 250 calls a month reach no person: about 170 in the evenings, overnight and at weekends, and 80 in the day while the dispatcher is on another line. Of those, 40 are emergencies, 130 are work to book and 80 are questions. The average call lasts 2 minutes, 500 minutes in all. The firm also gets 160 website chats and 90 WhatsApp conversations a month. All volumes are assumptions.
| Option | The maths | A month | Who answers |
|---|---|---|---|
| Evening dispatcher, 20 hours a week | 20 h × $24.20 × 4.33 weeks | About $2,096 in wages | A person, 20 of the 123 shut hours |
| Smith.ai receptionists | Pro: 300 calls covers 250 | $2,100 | A person, any hour |
| Ruby | 500 minutes: the Growing plan | $1,725 | A person, any hour |
| AnswerConnect | About 625 rounded minutes: $795 for 550 + 75 × $1.85 | $933.75 | A person, any hour |
| Specialty Answering Service | $649 for 500 minutes + 40 patched calls × 3 min × $0.10 | $661 | A person, any hour |
| MAP Communications | Premium: 500 minutes | $649 | A person, any hour |
| Smith.ai AI Receptionist | Pro, 300-call option: 300 × $1.67 | About $501 | AI, any hour |
| Rosie | Scale: 1,000 minutes covers 500 | $149 | AI, any hour |
| AI agent on your own Twilio number | Starter plan at $25, plus Twilio (see note) | About $45 | AI, any hour, plus chat and WhatsApp |
The people-based services cost $649 to $2,100 for the same calls, before the 250 written conversations. The dispatcher costs about as much as the dearest service and covers 20 of the 123 empty hours. The AI options cost a fraction of either. What the table cannot show is the 40 emergencies, where a live service earns its price by patching the caller straight through.
What a cold snap does to the bill
When a freeze lasts a week, the calls nobody picks up can double. Here is Copperline at 500 unanswered calls and 1,000 minutes.
| Option | How it charges | 250 calls | 500 calls |
|---|---|---|---|
| Smith.ai receptionists | Per call | $2,100 | $3,800 (Pro + 200 × $8.50) |
| AnswerConnect | Per minute, rounded up | $933.75 | $1,717.50 ($1,625 for 1,200 + 50 × $1.85) |
| MAP Communications | Per minute | $649 | $1,289 (Premium + 500 × $1.28) |
| Specialty Answering Service | Per second | $661 | $1,223 ($1,199 for 1,000 + $24 patching) |
| Smith.ai AI Receptionist | Per call | About $501 | About $800 (Enterprise, 500 × $1.60) |
| Rosie | Minute allowance | $149 | $149 (exactly the 1,000 minutes) |
| AI agent on your own Twilio number | Plan plus Twilio | About $45 | About $65 |
Per-call and per-minute bills move with the weather. Big allowances, like Rosie’s 1,000 minutes, stay flat until they run out. Price your worst week.
The 02:10 call: reaching your on-call tech
Worked example
No heat, a baby in the house, 02:10 on a Saturday
Nobody picks up
Office shut, a recorded message
- CallerRings: “The furnace has stopped, it’s 14 degrees out and we have a baby.”
- RecordingYou’ve reached Copperline. Our office opens Monday at 08:00.
- CallerRings the next company in the search results.
The job went to whoever answered at 02:12.
Live answering service
Overnight calls forwarded to a service
- CallerRings with the same problem.
- OperatorCopperline Heating, this is Sam. I’m putting you through to the engineer on call now.
- On-call techAsks what the thermostat shows and is on his way by 02:30.
A calm voice and a patched call. The firm pays for every minute.
AI agent on the phone line
Same number, the firm’s own answers
- CallerRings with the same problem.
- AI agentI’m sorry, that sounds urgent. For no heat, please call our engineer on call tonight on 555-0142. If you ever smell gas, leave the house and call your gas company from outside.
- CallerRings 555-0142 and reaches Dev, on call this weekend.
The caller reached the on-call tech in a minute. The call is saved in the inbox for Monday.
Each live service has its own route to the on-call tech. Specialty Answering Service patches callers through for $0.10 a minute. Smith.ai’s receptionist plans include one to ten free transfer destinations. Rosie lists live transfers on Scale and “waterfall” transfers, which try several numbers in turn, on Growth. An AI agent can also do the simplest thing that works: read out the on-call number you wrote into its answers. Whichever you choose, write the rule down: which calls count as an emergency, and which number they go to this week.
What an AI receptionist for HVAC should say
An AI receptionist is only as good as its answers. Write these the way your best dispatcher would say them:
- No heat: the on-call number, the night call-out charge, and roughly when a tech arrives.
- Burst or frozen pipe: where the main stop valve usually is, then the on-call plumber’s number.
- A smell of gas: leave the house and call the gas company or 911 from outside.
- Tune-ups: what is included, the price, and that it can be booked in the chat.
- Service area and brands: the towns you cover and the makes you service, as plain lists.
Eight questions to ask any answering service
How do you reach my on-call tech? A patch, a transfer, or giving the caller the number? What does each cost?
Who decides what is an emergency? Get the rule in writing, including the smell of gas.
How is a call counted? Per call, per minute or per second, and rounded up how?
What happens in a cold snap? Overage rate, an automatic upgrade, or a cap?
Are spam and wrong numbers billed? Smith.ai’s AI plan removes up to 10% of spam calls a month; ask every vendor the same.
Can I change the on-call number tonight, myself? Rotas change on Friday afternoons.
Does it answer the website chat and WhatsApp too? Some homeowners would rather write than ring.
What is the notice period? MAP lists no long-term contracts; Smith.ai’s AI plan asks for 30 days.
Our guide to AI receptionists for small business covers the general questions, with a worked month for a dental practice.
Where EzyConn fits
EzyConn is an AI agent for customer conversations. For a heating and plumbing firm it answers the phone, the website chat and WhatsApp from one set of answers: your website pages, your files, text you write and exact questions and answers you set, which it uses first. It answers in multiple languages and shows its source.
- The phone line. From the Starter plan, the AI answers inbound calls on a Twilio number you own, with your greeting and one of six English voices. It answers from your content and gives emergency callers the on-call number you wrote in. Each call is saved as a conversation in the inbox, and Twilio bills the number and minutes to you directly. See the AI phone answering page.
- Bookings in the chat. From Starter, on the website chat or WhatsApp, the AI offers times from your Google Calendar or Microsoft 365 calendar and books the tune-up or quote visit, with a confirmation to the customer. A homeowner who writes at 21:40 is booked for Tuesday at 10:00 before they put the phone down.
- The hand-over. When the answers run out or a customer asks for a person, the AI offers one. Once they accept, a teammate is assigned (by hand, round-robin, least busy or last active) and notified with the whole conversation in the inbox and in Slack, and the AI pauses. One click hands it back.
EzyConn is priced per workspace, not per agent. The Free plan includes the AI agent, needs no card and does not expire, with 2 people and 500 messages a month. Starter is $25 a month (₹2,499 at checkout), with 4 people and 5,000 messages. Checkout bills in Indian rupees, and paid plans start with one month free. Copperline’s 500 conversations at about six messages each come to about 3,000, inside the allowance. On WhatsApp, Meta gives each business number 1,000 free service messages a month (Meta, checked 3 November 2026).
Reports show how many conversations the AI handled, how many it escalated and how many a person led, with first reply times, the reasons it could not answer and the topics it does worst on; a teammate’s reply to a question it could not answer waits as a draft answer to approve. Every limit is on the pricing page. To test it, add a free AI chatbot to your website in about 3 minutes, or start free and ask it what your dispatcher hears most.
HVAC and plumbing answering services: common questions
How much does an HVAC answering service cost?
Live answering starts at $44 a month plus $1.54 a minute (Specialty Answering Service) or $49 plus $1.37 a minute (MAP Communications); both sell 500 minutes for $649. Smith.ai charges per call, from $300 for 30. For 250 calls a month we found $649 to $2,100 for people and $149 to about $501 for AI receptionists, checked 3 November 2026.
What does an after-hours answering service for HVAC cost?
Whatever your after-hours calls add up to: the live services we priced answer 24/7 on every plan, and Smith.ai says a call at 2 am costs the same as one at 2 pm. If 170 calls arrive after hours at 2 minutes each, that is 340 minutes, which at MAP is the Enterprise plan ($339 for 250 minutes) plus 90 × $1.28, or $454.20.
How much is an answering service for plumbers?
The same services serve plumbers at the same prices. What changes the bill is how calls are counted. Plumbing calls are often short, and short calls favour per-minute and per-second billing: at 2 minutes a call, MAP’s Premium plan works out at about $2.60 a call, Smith.ai’s per-call Pro plan at $8.40.
Can an AI receptionist handle HVAC emergency calls?
It can answer at once, at any hour, and give the caller what you wrote in advance: the on-call number, and the safety steps you want repeated, such as leaving the house and calling the gas company from outside if they smell gas. The decision to send a tech at 02:00 stays with your on-call person. Rosie also lists live transfers on its Scale plan.
Should I hire a dispatcher or use an answering service?
They do different jobs. A dispatcher plans the day and routes the vans, at a BLS 2025 median of $24.20 an hour, about $50,340 a year. An answering service or an AI covers the hours the dispatcher is away, which in a 45-hour office week is the other 123.
Do answering services charge more at night or at weekends?
Smith.ai says night calls cost the same as day calls, and MAP, AnswerConnect and Ruby list 24/7 answering on every plan. Setup fees vary: AnswerConnect lists $49.99 on some plans, Specialty Answering Service none. Ask about holiday rates in writing.
What is the cheapest way to answer HVAC calls after hours?
Forwarding to the owner’s mobile costs nothing but sleep. After that, AI: Smith.ai’s AI Receptionist is free for 25 calls a month and Rosie starts at $49 for 250 minutes. An AI agent on your own Twilio number costs $1.15 a month for the number and $0.0085 a minute for incoming calls, plus the software.
Will callers know they are talking to an AI?
They should. Say so in the greeting, for example “You’re through to Copperline’s AI assistant”, and make the on-call number the first thing it gives anyone with an emergency.