AI Receptionist Cost for HVAC Shops in 2026

An AI receptionist for HVAC and plumbing shops costs $79 to $249 a month on Goodcall's published plans and $199 flat at NextPhone, based on price pages read on September 29, 2026. Per-call plans at Smith.ai start at $300 and reach $2,100 a month before overage. What changed this year is the call data behind the purchase. ServiceTitan's June 2026 analysis of 2025 residential HVAC calls found 14.1 percent arrived outside business hours in June against 9.8 percent in October, and Invoca's July 2026 benchmarks report found that 52 percent of callers to home services businesses speak with a person.

If you run a Las Vegas HVAC or plumbing shop, this post shows when calls move, how many get answered, and what seven published plans cost at 100, 250 and 500 a month. The arithmetic is shown so you can redo it with your own call log.

HVAC calls move after hours in June, and trucks peak in October

ServiceTitan's HVAC off-hours summer call spike data, published in June 2026, is the cleanest look at timing. It aggregates anonymized inbound residential HVAC call records from participating ServiceTitan customers for January through December 2025, limited to contractors active in all 12 months. Business hours are defined as Monday through Friday, 8 a.m. to 5 p.m. local time. The page does not state how many shops are in the cohort.

The finding: 14.1 percent of inbound calls arrived outside business hours in June 2025, against 9.8 percent in October, the low point of the year. Divide 14.1 by 9.8 and you get 1.44, which is the roughly 45 percent relative increase ServiceTitan describes. Weeknights carry most of it. After-hours weekday calls peaked at 9.3 percent of inbound calls in June against 6.8 percent in October, while weekend calls peaked at 4.9 percent in August against 2.95 percent in October.

The dispatch side looks different. Samsara's analysis of the real peak season for HVAC, published in August 2025, covers 65 million HVAC service trips across the United States from September 2023 through June 2025, drawn from customer fleet telematics. October, not summer, was the busiest month on all three measures: trips, drive time and miles per vehicle. September was the dip. Samsara attributes the October surge to furnaces and boilers that sat dormant since spring being switched on and failing.

Put the two together and the year has two phone problems. In June, calls drift into hours when nobody is at the desk. In October the off-hours share is at its lowest but the trucks are at their busiest, so the risk moves to daytime calls that ring while everyone is on a job. That second reading is our inference from two separate datasets, not something either publisher states.

Then there is the answer rate. The Invoca Home Services Lead Conversion Benchmarks Report 2026, published in July 2026, draws on more than 70 million calls and 600 million minutes of conversation across Invoca's customer base, with a home services cut spanning nine sub-industries that include HVAC and plumbing. It reports that 52 percent of callers to home services businesses speak with a person, and that answer rates by sub-industry range from 32 to 74 percent. The text we read did not show which trade sits at which end, so do not assign either figure to HVAC or plumbing.

The coverage table: seven plans priced at 100, 250 and 500 a month

Here is the one page version. The seasonality strip comes first because it decides which hours you are buying coverage for.

• Off-hours share: 14.1 percent of residential HVAC calls in June, 9.8 percent in October (ServiceTitan, June 2026, on 2025 calls).
• Peak field month: October, by trips, drive time and miles per vehicle (Samsara, August 2025).
• Answer rate: 52 percent of home services callers reach a person, with sub-industries ranging from 32 to 74 percent (Invoca, July 2026).

Prices come from Goodcall's pricing page, Smith.ai's pricing page and NextPhone's AI receptionist pricing guide, all read on September 29, 2026. The three volume columns are our arithmetic from each published base price and overage rule, at monthly billing.

Plan	Monthly price	What is counted	Overage rule	Cost at 100	Cost at 250	Cost at 500
Goodcall Starter	$79	100 unique customers	$0.50 per extra customer	$79	$154	$279
Goodcall Growth	$129	250 unique customers	$0.50 per extra customer	$129	$129	$254
Goodcall Scale	$249	500 unique customers	$0.50 per extra customer	$249	$249	$249
Smith.ai Starter	$300	30 calls	$11.50 per extra call	$1,105	$2,830	$5,705
Smith.ai Basic	$810	90 calls	$10.50 per extra call	$915	$2,490	$5,115
Smith.ai Pro	$2,100	300 calls	$8.50 per extra call	$2,100	$2,100	$3,800
NextPhone flat plan	$199	Unlimited calls	None, unlimited calls	$199	$199	$199

Here is how the cells are built. Goodcall Starter at 250 customers is $79 plus 150 extra customers at $0.50, which is $79 plus $75, or $154. Smith.ai Basic at 250 calls is $810 plus 160 extra calls at $10.50, which is $810 plus $1,680, or $2,490. Every other cell follows the same pattern.

Two notes on the rows. Goodcall states it does not charge for call count, minutes or tokens, and lists annual billing at 15 percent off, shown as $66, $108 and $208 a month. Its page does not mention HVAC, so treat it as a general product. NextPhone's figure comes from its own blog, which says it verified competitor prices on September 22, 2026. That is a vendor comparing itself to rivals, so confirm the terms directly.

The units also differ. Goodcall counts unique customers, so a homeowner who calls three times about one leaking water heater counts once. Smith.ai counts calls, so that homeowner counts three times. If your repeat call rate is high, the real gap between the two is wider than the table shows.

The cheapest plan flips at 200, 390 and 490 customers

The table hides the break points, and the break points are where money is lost. Goodcall Starter costs the same as Growth when $79 plus $0.50 per customer over 100 equals $129. That happens at 200 unique customers. Below 200, Starter with overage is cheaper. Above it, Growth is.

Growth and Scale meet when $129 plus $0.50 per customer over 250 equals $249, which is 490 customers. Scale only wins in a narrow band at the top of its allowance. At 500 customers Growth with overage is $254 and Scale is $249, a $5 difference.

The flat plan flips in the middle. Goodcall Growth reaches NextPhone's $199 when $129 plus $0.50 per customer over 250 equals $199, at 390 customers. Under 390 unique customers a month, Goodcall's published price is lower. Above 390, the flat $199 is lower, and it stays there however far a heat wave pushes volume. A metered bill rises exactly when call volume does, so price your busiest month and your slowest month, not the average.

Smith.ai has its own flips. Starter and Basic cost the same at about 74 calls, since the $510 gap between them buys about 44 extra calls at $11.50. Basic and Pro cost the same at about 213 calls. The included calls work out to $10 each on Starter ($300 divided by 30), $9 on Basic ($810 divided by 90) and $7 on Pro ($2,100 divided by 300). At those rates it is a different class of purchase from the plans under $250, so compare what each call includes on the vendor's page, not only the price.

Two shops, two bills: a three truck plumber and a twelve truck HVAC company

Take a three truck plumbing shop. Assume 180 inbound calls a month from 120 unique customers. These are our assumptions for illustration, not sourced figures.

On Goodcall, 120 unique customers is Starter plus 20 extra at $0.50, or $89. NextPhone would be $199. On Smith.ai, 180 calls on Basic is $810 plus 90 extra calls at $10.50, or $1,755. If the shop routes only off-hours calls to the agent, and borrows ServiceTitan's June share as a placeholder, that is 14.1 percent of 180, about 25 calls. Twenty five calls fits inside Smith.ai Starter's 30 call allowance at $300.

Now a twelve truck HVAC company. Assume 900 inbound calls in June from 600 unique customers, and 500 calls in October from 350 unique customers.

June on Goodcall Scale is $249 plus 100 extra customers at $0.50, or $299, against NextPhone's $199. October on Goodcall Growth is $129 plus 100 extra customers at $0.50, or $179, against the same $199. The metered plan wins October by $20 and loses June by $100, and that assumes you can switch tiers month to month. Check your contract before counting on it.

The bigger number is not the subscription. Apply ServiceTitan's June share to 900 calls and about 127 arrive outside business hours (900 times 0.141). In October, 9.8 percent of 500 is 49. On these assumptions the shop needs more than twice the off-hours coverage in June that it needs in October.

Invoca's July 2026 report hints at what those calls are worth. It found 38 percent of calls from digital marketing are leads, and 45 percent of those leads convert on the call. Multiply the two and about 17 percent of marketing driven calls convert on that first conversation (0.38 times 0.45 is 0.171). If 100 of the 127 off-hours June calls came from your ads, that is about 17 jobs decided by whether anything answered. The 100 is our assumption, and your rate may differ.

A plan that fumbles a no-cool call costs more than the subscription

The skeptical owner's objection is fair: my customers want a person, and an agent that mishandles a no-cool call in July loses that customer for good. None of the sources here measure how callers rate an AI agent against a human, so the data does not settle it.

What the data does settle is the baseline. Invoca's 52 percent means that for the other 48 percent of callers, the comparison is not AI against a great dispatcher. It is AI against no person at all. The honest test is whether the agent beats your voicemail on a June weeknight, not whether it beats your best employee on a Tuesday morning.

That is why setup matters more than plan choice. Before any plan goes live on a trades line, check three things.

• Emergency routing. Name the phrases that trigger a live transfer or an on-call page: no cooling, no heat, active leak, flooding. Test each one yourself from a cell phone after hours.
• Dispatch handoff. Decide where a booked or urgent call lands: your field service software, a text to the on-call tech, or an inbox nobody reads until morning. Only the first two count.
• Nevada recording consent. If the agent records or transcribes calls, tell callers at the start. Nevada is generally treated as requiring consent from everyone on a recorded phone call. This is not legal advice, and our post on Nevada recording consent for AI phone systems covers the detail.

If you already lose daytime calls in October, when the trucks are busiest, the same routing rules apply to overflow. Our missed call recovery page describes that setup, and the phone is usually one piece of a wider business automation plan that includes dispatch and follow up.

None of this is Las Vegas data, and plumbing is the weakest fit

None of the three datasets is a Las Vegas cut. ServiceTitan's cohort is national and residential, and a desert summer runs longer and hotter than most, so the local off-hours peak could be higher or land in a different month. Samsara's October peak is driven by furnaces and boilers. In a valley with a short heating season, the fall surge may be smaller than the national trip data suggests. Samsara's analysis is also from August 2025, the oldest source here, and it measures fleet activity, not inbound calls.

Plumbing is the weakest fit. ServiceTitan's figures are HVAC only, and the Invoca text we read does not break out plumbing from the nine sub-industries. A plumber should treat every percentage above as a starting guess.

Invoca's benchmarks come from its own customers, businesses that invest in call tracking and marketing. A shop that runs on referrals is not in that sample. ServiceTitan's business hours also end at 5 p.m. on weekdays, so if your office already answers evenings or Saturdays, your uncovered share is smaller than 14.1 percent.

Finally, the table compares published prices only. It says nothing about call quality, dispatch software integration, setup fees or contract length, because the pages we read gave no comparable facts on those. Vendors change prices, so recheck them before you buy.

Questions owners ask

How much does an AI receptionist for HVAC cost per month?

On prices read September 29, 2026, Goodcall lists $79, $129 or $249 a month for 100, 250 or 500 unique customers, plus $0.50 per customer above the limit. NextPhone lists a flat $199 with unlimited calls. Smith.ai's plans run $300, $810 and $2,100 a month for 30, 90 and 300 calls, with overage of $8.50 to $11.50 per call.

What percentage of HVAC calls come in after hours?

ServiceTitan's June 2026 analysis of 2025 residential HVAC calls found 14.1 percent arrived outside Monday to Friday, 8 a.m. to 5 p.m., in June, and 9.8 percent in October, the yearly low. Weeknight calls were the larger piece, peaking at 9.3 percent in June. Weekend calls peaked at 4.9 percent in August. It is national data, not a Las Vegas figure.

Is a flat rate or per customer AI receptionist plan cheaper for an HVAC company?

It depends on volume. On the published prices, Goodcall's metered plans cost less than NextPhone's flat $199 below 390 unique customers a month, and the flat plan costs less above that. A seasonal shop should price its busiest and slowest months separately, because a metered bill rises exactly when call volume does.

What to do this week

First, pull last June's and last October's call logs from your phone system or field service software. Count total inbound calls, calls outside your staffed hours, and unique phone numbers. Those three counts replace every assumption in this post.

Second, put your numbers into the table. Use unique numbers for the Goodcall rows and total calls for the Smith.ai rows, and price June and October separately. Above 390 unique customers in June, the flat plan deserves a look. Under 200, the smallest metered plan probably wins.

Third, call your own shop on a weeknight after closing and again on Saturday afternoon. Say you have no cooling and see what happens. Write down how long it took to reach a person or a booking, because that is the baseline any receptionist, human or AI, has to beat.

If you want a second set of eyes on that call log, the free 15-minute audit on our AI receptionist page is a quiet place to start.