A traditional live answering service for an HVAC company runs $140 to $380 a month for basic coverage (Find An Answering Service), and flat-rate or tiered plans can climb to $300 to $1,500 a month depending on call volume (Call Force Global). AI answering platforms typically run flat, often around $199 a month for the platform itself, well under what premium live services charge (NextPhone). The gap gets bigger once you factor in what an in-house employee would cost you instead.

I’ve spent the last year building phone and lead-capture automation for trades businesses, so I look at this math constantly. Here’s the breakdown, cost by cost, so you can see where your money actually goes.

What does a traditional answering service cost?

Basic 24/7 answering coverage for an HVAC company lands between $140 and $380 a month (Find An Answering Service). That gets you a live person picking up, taking a message, maybe scheduling a callback. It does not get you someone who knows the difference between a no-heat call in January and a routine filter question.

Move up to a flat-rate or tiered plan built for higher call volume and you’re looking at $300 to $1,500 a month (Call Force Global). At the top end, premium live receptionist services can run $245 to $1,695 or more per month (NextPhone). You’re paying more as the plan gets more capable, but you’re still paying a human vendor for every minute someone is on the phone with your customer.

None of these plans dispatch a technician, check your schedule in real time, or send a follow-up text if the caller hangs up before finishing. They answer the phone. That’s the whole job.

What does hiring in-house cost instead?

If you decide to just hire someone to answer the phone yourself, the U.S. median wage for a receptionist is $37,230 a year, or $17.90 an hour (BLS). That’s one shift. HVAC calls don’t stop at 5pm, they spike at night and on weekends when systems fail in bad weather.

Once you load in payroll taxes, benefits, and the reality that one person can’t cover nights, weekends, and sick days, a full-time in-house CSR costs $55,000 to $72,000 a year fully loaded (Call Force Global). And that’s for one shift of coverage, not around the clock.

If you actually want 24/7 in-house phone coverage, meaning multiple staff covering nights and weekends, you’re looking at $230,000 to $300,000 a year (Call Force Global). Compare that to an outsourced Pro tier offering equivalent 24/7 coverage for around $18,000 a year, a 92 to 94 percent reduction (Call Force Global). That gap alone should end most “let’s just hire someone” conversations.

What does an AI platform cost?

AI answering platforms are usually flat-rate. A common price point sits around $199 a month, compared to $245 to $1,695 or more for premium live answering (NextPhone). The pricing structure is the real difference. Live services often charge per minute or per call once you exceed a base tier, so your bill moves with your call volume. AI platforms are usually one flat number regardless of how many calls come in on a Tuesday during a heat wave.

That flat-rate structure matters more than it sounds. HVAC call volume isn’t steady. It spikes hard three or four times a year and stays quiet the rest of the time. A per-minute answering service bill will spike right along with it. A flat AI platform fee doesn’t.

What do you actually get for the money?

This is where the comparison stops being just about dollars. A live answering service, no matter how good, gives you a human who takes a message and passes it along. An AI platform built correctly can check your actual calendar, book the appointment on the spot, text the customer a confirmation, and flag emergency keywords like “no heat” or “gas smell” for immediate callback, all without a human in the loop unless something needs one.

The reason this matters more than people think: a large study of home-service business phone lines found 62% of calls go unanswered (ServiceTitan via CallJolt). Every one of those missed calls is a homeowner who’s now calling your competitor. An answering service reduces that number by having someone pick up. An AI platform reduces it further by also booking the job right then, at 2am, on a Sunday, without waiting for anyone to wake up and follow up on a message slip.

I build these systems on infrastructure the client owns outright, not a rented seat in someone else’s call center software. If we ever part ways, the system keeps running. That’s not true of most answering service contracts, where you’re renting access and lose everything the day you cancel.

Which one actually stops the bleeding from missed calls?

If your only goal is “someone picks up the phone,” a basic answering service at $140 to $380 a month solves that problem cheaply (Find An Answering Service). If your goal is capturing and booking the job itself, not just answering the phone, an AI platform does more for less, especially once you account for what full human coverage actually costs at scale ($230,000 to $300,000 a year for true 24/7 in-house staffing) (Call Force Global).

The math isn’t close once you’re comparing apples to apples: flat AI pricing around $199 a month against premium live plans that can run $1,695 or more (NextPhone), or against the $55,000 to $72,000 a year it costs to keep one in-house CSR fully staffed (Call Force Global). An answering service is a patch. An AI platform, built right, is infrastructure.

What does Solas AI charge for this?

I run three retainer tiers for service businesses like HVAC companies: Starter at $497 a month, Professional at $1,497 a month, and Premium at $2,497 a month, with a one-time setup fee of $1,497. If you want to test the water first, there’s a 30-day pilot at $497 or a paid exploration milestone at $800 before you commit to anything longer.

Every system I build runs on infrastructure the client owns, not a black box you’re renting monthly from a vendor who can raise prices or shut down the service. That’s the whole point of building it this way. You’re not locked in, and the system doesn’t disappear if we stop working together.

If you’re running an HVAC company and losing jobs to missed calls at night or on weekends, it’s worth doing the math on what you’re actually paying now versus what a flat-rate AI system would cost. I offer a free call to walk through your specific numbers at /book. No pitch deck, just the math.