AI Receptionist vs. Answering Service vs. Hiring: Real Costs

For an HVAC or plumbing shop taking around 400 calls a month, an AI receptionist is usually the cheapest way to get every call answered: published AI plans at that volume run from under $150 to several hundred dollars a month. A live answering service costs roughly $1,200 to $3,000 a month at the same volume (October 2026 list prices), and one full-time in-house receptionist costs about $4,500 a month while covering only business hours.

Price is not the whole story, though. Each option handles a booking call, a 2 a.m. no-heat call, and an angry customer differently. This guide lays out how each one works, what the vendors actually charge, a worked cost example, and when each option (or a mix) makes sense.

The short answer

• Live answering service: real people at a call center answer in your name. Billed per minute or per call. Good at empathy and odd situations, but costs climb with every busy week, and many plans default to taking a message instead of booking the job.
• AI receptionist: software answers the phone, talks to the caller, and can book the job and text you the details. Billed per minute, per call, or a flat monthly price. Cheapest per call and always available, but it needs a careful setup and some callers prefer a human.
• In-house receptionist: a person on your payroll who knows your techs, your customers and your service area. Best quality during the hours they work, by far the most expensive, and leaves nights, weekends, lunch breaks and sick days uncovered.

None of these is wrong. Plenty of shops run a hybrid: an office manager during the day and an AI or answering service catching overflow and after-hours calls.

How each option works

Live answering service

You forward your line to the service when you can't pick up (or all the time). An agent answers with a script you approve, collects the caller's name, number, address and problem, and then does one of three things: sends you a message, patches the call to an on-call tech, or (on some plans) books into your calendar. Agents handle calls for many businesses at once, so they read from your script rather than knowing your shop.

Billing is usually by the minute, and the minute count can include more than the conversation itself. AnswerConnect, for example, says on its site that billable minutes include after-call work. Specialty Answering Service bills by the second. Check which applies before comparing per-minute rates.

AI receptionist

The same forwarding setup, but software answers. A good one tells the caller it's an AI, asks what's going on, sorts emergencies from routine work, checks your calendar, books an open slot, and texts you a summary. It can pick up several calls at once during a heat wave without anyone waiting on hold. If you want the basics first, read what an AI receptionist is and how it works.

In-house receptionist or office manager

A person in your office answers, books, follows up on estimates, and often handles billing and parts too. That extra work is part of why the role is valuable. It also means the phone goes unanswered whenever they are on another call, at lunch, or gone for the day.

Answering service pricing, by vendor

These are published list prices as of October 2026, taken from each company's own pricing page (linked in the sources below). Prices change often, so confirm before you sign.

A few useful details from the fine print. Ruby says it charges no extra fees for setup or after-hours, weekend and holiday coverage. PATLive and Specialty Answering Service both offer a 14-day free trial, and MAP lists no long-term contracts on every plan. PATLive adds government taxes and fees on top of its plan prices.

Trade-specialist services are harder to price. Several that market to HVAC and plumbing, such as AnswerForce and Avoca, don't publish prices at all; you get a number after a form or a sales call. That's not a red flag on its own, but it makes comparison shopping slower.

What an AI receptionist costs

AI receptionist pricing falls into three models:

• Per minute: Rosie, for example, lists $49 a month for 250 minutes, $149 for 1,000 and $299 for 2,000.
• Per call: Smith.ai's AI receptionist has a free tier with 25 calls, then a Pro plan from $150 a month for 75 calls ($2.00 a call). Its per-call rate drops to $1.67 at 300 calls and $1.60 at 500, with overage between $2.10 and $3.00 per call depending on plan.
• Flat monthly price: one price no matter how many calls come in. This is how Ringstead prices: a single monthly price that comes in under the value of one repair job, with setup free and the first 14 days free. The exact number is given on the demo call.

For a seasonal business, the billing model matters as much as the rate. A per-minute or per-call bill doubles in the month the phones double. A flat price doesn't.

The real cost of hiring a receptionist

The U.S. Bureau of Labor Statistics puts the median wage for receptionists at $18.27 an hour, or $38,010 a year (May 2025). Your local market may be higher or lower, and a dispatcher who knows HVAC or plumbing usually earns more than a general receptionist.

Wages are only part of what an employee costs. In June 2026, BLS found that wages made up 70% of private employers' compensation costs, with benefits (including legally required costs like the employer share of payroll taxes) making up the other 30%. That's an average across all private-industry jobs, not receptionists specifically, but it's a fair rule of thumb:

• Wages: $18.27 x 2,080 hours = about $38,000 a year, or $3,167 a month
• Fully loaded (wages / 0.70): about $54,300 a year, or roughly $4,525 a month
• Not counted: recruiting, training, a desk, a phone, software seats, and turnover

Then there's coverage. One full-time person covers about 40 of the 168 hours in a week, roughly 24%. Calls that come in during lunch, while they're on another line, after 5 p.m., or on Saturday still go to voicemail. Covering every hour with staff alone takes more than four full-time people before vacations and sick days, which is why almost no small shop does it.

Those uncovered hours matter. If you want the numbers on what happens to calls nobody answers, see how much missed calls cost an HVAC or plumbing shop.

Worked example: 400 calls a month

Take a shop that gets 400 inbound calls a month. To convert calls to minutes we use PATLive's own planning ratio (its 1,000-minute plan is labeled as about 400 calls), which works out to 2.5 minutes per call, or 1,000 minutes a month. Your average may differ, so plug in your own numbers from your phone records.

Now the busy month. Say a heat wave or a cold snap doubles calls to 800 (2,000 minutes). Specialty Answering Service goes to about $2,489 ($1,199 + 1,000 extra minutes x $1.29). PATLive's 2,000-minute plan is $2,899. MAP goes to $2,569. Rosie's 2,000-minute plan is $299. A flat-priced AI stays the same. The in-house receptionist costs the same, but now half the calls hit a busy signal or voicemail while they're on the other line.

To put these figures next to revenue: Housecall Pro reports that average HVAC repair revenue per job was $1,205 in 2025. At live-answering prices, a shop needs one to three extra booked repairs a month to cover the bill. At AI prices, a fraction of one.

Side-by-side comparison

Quality: hold times, scripts, booking

Who actually picks up

Invoca's 2026 benchmark report found that only 52% of callers to home-service businesses speak with a person. Any of the three options can fix that, but only if it's actually on the line when the phone rings. An in-house receptionist on another call is the same as nobody. A call center short-staffed on a Monday morning in July puts your customer on hold. Software doesn't queue, which is its biggest practical advantage.

Scripts versus judgment

Answering service agents read from your script while juggling other clients. That works for routine calls and breaks down on edge cases: the customer who has a warranty question, a tankless unit you don't service, or a landlord calling about a tenant. An AI follows your rules too, so it is only as good as the setup. Spend real time on both: what you service, your area, what counts as an emergency, and who gets woken up.

Message-taking versus booking

This is the biggest practical difference and the one most often missed in sales calls. A message means you still have to call the customer back, and by then they may have booked the next shop on Google. Invoca also found that 55% of home-service businesses don't ask leads to book the job on the call. Whatever you choose, make sure it books, or at minimum commits the customer to a time window, before hanging up.

Emergencies

A gas smell, a carbon monoxide alarm, or an electrical fire should never become a callback in the morning. Ask any provider what their script does on those calls. A sound setup tells the caller to get out and call 911 or the gas company first, then reaches you immediately. Ringstead, for example, does exactly that, then rings your phone. For the full playbook on night and weekend triage, see after-hours calls for HVAC and plumbing.

Which one fits your shop

An in-house receptionist makes sense when

• You have enough daytime volume and office work (billing, parts, follow-up) to keep a person busy all day
• Your customers expect someone who knows them by name, such as a commercial or maintenance-agreement base
• You still plan to cover lunch, overflow and after-hours some other way

A live answering service makes sense when

• Your call volume is low or very steady, so per-minute bills stay predictable
• Your customers strongly prefer a human voice on every call
• You mostly need messages relayed or calls patched to an on-call tech, not bookings

An AI receptionist makes sense when

• Your volume swings with the weather and you don't want the bill to swing with it
• You want jobs booked on the call, not messages to return
• You need nights, weekends and overflow covered without adding staff
• You get Spanish-speaking callers and don't have bilingual staff on every shift

A hybrid makes sense for most shops

Keep whoever answers your phone now. Forward only the calls they miss (busy, no answer, after hours) to the AI or answering service. Your customers still reach your office first, and the backup only works the calls that would otherwise go to voicemail. That is how Ringstead is set up: you keep your number, and it answers only when you don't pick up.

Questions to ask before you sign

1. What exactly am I billed for? Talk time only, or after-call work too? Billed by the second, by the minute, or by the call? What counts as a call (spam, hang-ups, wrong numbers)?
2. What does a busy month cost? Ask for a quote at double your normal volume.
3. Does it book, or take messages? Into which calendar or software? Does booking cost extra?
4. What happens on a gas leak or CO call? Ask them to read you the script.
5. How do I reach the caller and the details? Text, email, app? How fast?
6. Can I hear real recordings? Of calls for a shop like yours, not a polished demo.
7. Do I keep my phone number? Forwarding should be enough; you shouldn't have to port.
8. Spanish? Included, extra, or not offered?
9. Contract and trial? Is there a free trial, a setup fee, a minimum term, and a cancellation notice period?
10. Recording and privacy: Are calls recorded, are callers told, and how long is the audio kept?

Whatever you pick, run it for two weeks and listen to a dozen calls before you commit. If you want to hear how an AI receptionist handles your kind of call, you can book a 15-minute demo.