HVAC, plumbing and the rest of the trades share one problem: the job that pays is the call that lands while you are under a house. Here is who sells to that market, ranked on published price.
Short answer: 8 vendors in our dataset list HVAC or plumbing. 7 publish a price, from US$29/mo (Dialzara). 1 quote on request.
The cheapest published entry plan we found, but 60 minutes doesn't go far. Four inbound tiers now; work out your monthly talk time first.
general · hvac · real estate · accountants · auto repair
Plans & source
Business Lite $29/mo (60 min, $0.48/min over). Business Pro $99/mo (220 min, $0.45/min over). Business Plus $199/mo (500 min, $0.40/min over). Business Elite $349/mo (1,000 min, $0.35/min over). Add-ons: AI SMS agent $19/mo + $0.05/message; website chatbot $39/mo. Separate outbound calling plans from $750/mo.
Lives inside Jobber, so bookings land straight in the job calendar. The $29 is an add-on, not a standalone plan: it only makes sense if you already pay for Jobber.
plumbers · hvac · Jobber
Plans & source
Add-on $29/mo on Jobber Core, Connect or Grow; included in the Plus plan. Jobber plans (billed annually): Core $29/mo, Connect $99/mo, Grow $149/mo, Plus $399/mo; month-to-month: Core $49, Connect $139, Grow $199, Plus $499. Answers calls and texts; can answer questions, take detailed requests and book jobs into the Jobber calendar. Note: Add-on: needs a paid Jobber plan on top of the $29/mo (Core is $49/mo month-to-month, $29/mo billed annually). Included in Jobber Plus.
Pre-trained for trades, based in Canada, with a 60-day ROI guarantee per its site.
plumbers · hvac
Plans & source
Plug & Play $369/mo CAD ($299/mo introductory for the first 2 months), 300 min, no setup fee. Plus $500/mo CAD, 500 min. Built-for-you: $500 CAD setup + $369/mo CAD, 300 min. Built-for-you Multi: $2,000 CAD setup minimum + $1,000/mo CAD, 1,000 min, for multi-phone or multi-location businesses. Local Boost add-on +$200/mo CAD. Note: Safigo prices in Canadian dollars (CAD), not USD.
Well funded and aimed at larger service businesses. Book a demo to get a price.
hvac · plumbers · auto repair · ServiceTitan · Jobber · Housecall Pro
Plans & source
Quote only. No public pricing page found. Note: contractorsbidding.com reports 'from $149/mo'. We couldn't confirm that on avoca.ai (its /pricing page returned 404).
What is the cheapest AI receptionist for home services?
Dialzara at US$29/mo. Among standalone products, Dialzara publishes $29/mo.
Which field-service software do they integrate with?
Listed integrations include Housecall Pro, Jobber, ServiceTitan.
Per call or per minute for trades?
Emergency calls run long, which favours per-call pricing such as OnCrew ($49/mo for 100 calls, $0.99 per extra call). Minute bundles such as Dialzara's 60 minutes for $29/mo drain faster on long calls.