Winner CES 2026 · ISE 2026 · TMCnet 2026

AI Phone for Home Services. The HVAC answering service that books the job.

AI Phone is an HVAC answering service that picks up the office line, the truck numbers and the ad numbers on the first ring, day and night. It asks where the job is and what the system is doing, books the visit into a free window, and puts a gas smell or a burst pipe through to the technician on call.

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7 days free · per company, never per seat · nothing to install

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Zanus AI · AI Phone · Forwarded calls

HVAC answering service: calls handed to your team, each announced with who is calling and why, real Zanus AI screen

Forwarded calls

When a caller needs a person, the AI announces who is calling and why, and the time your colleague took to pick up is kept.

Easy setupSet up everything just by talking to Lisa AISee how ›

You“CSRs answer first until five; after that and on weekends the AI takes every call.”

Lisa“Service line: your CSRs first until 5 PM, then the AI alone on evenings and weekends, with emergencies to on-call. Apply?”

You talk. Lisa sets it up. Applied only on your yes.

How Home Services use it

The first heat wave fills the morning with no-cooling calls; each one is answered at once and booked into the windows still open.

A homeowner smells gas at eleven at night; the AI reads your approved lines and transfers the call to the on-call technician's mobile.

A caller hangs up while both CSRs are busy; the hang-up waits on the missed-calls list for a call back from the computer.

REAL AI - the whole Front Office is AI, not old software with an AI button.

What’s included

Keep your number: forward your existing line to your Front Office line and the AI answers immediately, no porting needed. Port the number in when you decide; we handle it with the carrier
A local number in your area, or your own number ported in
Answers on the first ring, 24/7, 365; your business hours only decide when people are reachable
Human-like voice: you choose the voice and the persona per function, greeting, sales, support, booking, callbacks
Receptionist style, no phone menu: the caller just talks in any of 40 languages; the AI detects the language on the first sentence and switches the whole call
Departments you define, sales, support, booking, billing, technical…, each with its own policy: AI first, operator first, or AI only; each with its own AI specialist when no human is free
Directory of your operators with per-day working hours, languages, the nicknames callers use, vacations and temp-worker expiry
Transfers announce the caller and the reason; your person accepts before the call is connected; the call is pulled back before a mobile voicemail can swallow it
Language routing: a Spanish-speaking caller reaches your Spanish-speaking operator first
Hold music with spoken updates; when a person is unavailable the AI says the honest line you wrote for that time of day
Takes messages with the callback number read back and confirmed, delivered to that person's own inbox
Books appointments live from your calendar during the call; captures the e-mail letter by letter; saves the lead
Every fact from your approved knowledge, prices only from your catalog; with no source it says so and offers a person
Robocalls and telemarketers get one polite goodbye and stay away from your team
Off hours your way: full AI service, take-a-message only, or voicemail; holidays and special closures with the message you write
Every call transcribed into the customer's record with a summary; call log with transcripts, exportable; the morning briefing reads it for you

Available on its own or inside a solution · See pricing › · Per company, never per seat.

Everything AI Phone does, for every business ›

Works withAI Booking AI Calls Teleprompter AI Calls Transcripts AI Quoting AI Tickets AI Returns & Warranty AI CRM Lisa, your AI assistant

On every call

What an HVAC answering service should finish on the call

An AI answering service with a whole AI call center behind it, answering calls for every department of a plumbing business or an HVAC shop on one number.

Sorts the call

Call handling starts by listening: new or existing customer, repair or replacement, residential or commercial, and how urgent, heard in the caller's own words.

Books into a free window

Appointment scheduling happens on the call: with AI Booking the visit lands in the right trade's calendar, only at free times, and the text confirmation comes from your number.

Routes by department

Call routing by department: service, installs, billing, customer service and on-call can each be AI only, AI first or your people first, with their own hours and holidays.

Keeps the record

The transcript, the summary and the outcome of every call sit on the homeowner's record before your CSR opens it the next morning.

Nights and weekends

HVAC after hours answering service, with on-call by your rules

Full service at night

Choose full AI service outside business hours, and tomorrow's tune-ups and repair visits get booked around the clock while the office is dark.

On-call, rung where they are

Emergency calls ring the technician on call on the computer, the phone app or a mobile number, in the order that technician chose.

Holidays in your words

On a holiday or a shop closure, callers hear the message you wrote for that day, and urgent calls still reach the person on call.

Your busiest hours

Plumbing answering service moments that decide a job

The burst pipe

Water is on the kitchen floor and the caller is panicking; the AI reads your shut-off lines and connects the on-call plumber.

The overflow

Call volume spikes and both CSRs are on calls when four more ring; the AI answers each one at the same moment, with no hold queue and no busy signal.

The price shopper

A homeowner asks what a drain clearing costs; the AI reads the price from your catalog and offers the first free window that week.

Compare

An AI plumber answering service against voicemail and live answering services

Judge an answering service for HVAC company owners by the calls that cost a shop its jobs, side by side with voicemail and a live service.

What the call needs	Voicemail	A live answering service	AI Phone
A no-heat call at 2 a.m.	Heard in the morning	A message for the office	Booked or put through:: a visit in a free window, or the on-call technician on the line
Your price book	Not used	Rarely in front of the agent	Read as written:: flat rates and trip fees from your catalog, the rest an estimate visit
Twenty service calls at once	A full mailbox	Callers placed on hold	All answered:: no hold queue, each call sorted and finished
Your service area	Not checked	Checked from a printed list	Checked by zip code:: an address outside it becomes a callback, never a booking
The record of the call	A recording	A short note by e-mail	Written in full:: transcript, summary and outcome on the homeowner's record

2 minutes

Set up your HVAC answering service in 2 minutes

Forward the numbers

The office line, each truck number and each ad number are forwarded to your Front Office, and call answering starts from the next call.

Name your departments

Tell Lisa your departments, such as service, installs and billing, and who answers each one at which hours of the week.

Write the emergency lines

Say what the AI must tell a caller who smells gas or has water coming through the ceiling, and who is on call; she reads it back for your yes.

Listen, then decide

Call your own number to hear it answer, and read the report of every call your trucks and ads brought in when the 7-day trial ends.

Questions & answers

Frequently asked questions about an HVAC answering service

Who is the best HVAC answering service?

The one that ends the call with a booked job, not a message. Compare how each one handles a no-heat call at night, whether it books into your calendar, checks your service area and writes the call down. AI Phone does all of it, priced per company.

What does an HVAC answering service do after hours?

Outside your hours you choose full AI service, take-a-message only or voicemail. Full service is 24/7 answering that finishes the call: the AI books tomorrow's visits, sends emergencies to on-call by your rules and reads back each callback number digit by digit; holidays get the message you wrote for that day.

Is a plumbing answering service worth it for a small shop?

For a two-truck plumber, one missed burst-pipe call can be a lost job and a lost customer. A 24/7 plumbing answering service such as AI Phone picks up while you are under a sink, books the visit and keeps the transcript, so you never miss a call and the job is won instead of returned hours later.

What is the difference between an AI receptionist and a live answering service?

A live answering service puts an agent with a script on your line, and the call usually ends as a message for the office. An AI receptionist such as AI Phone is a virtual receptionist made of software: it can answer calls on the first ring all night, book the visit, read your price book and route emergencies, and every call it takes is written down.

How much does an HVAC answering service cost?

AI Phone is priced per company, never per seat or per agent, and the plans are on the pricing page. You can run it free for 7 days on your own line, with no credit card, and read the report of every call before you decide.

Can we keep the numbers painted on our trucks?

Yes. Forward each number to your Front Office and the phone answering starts from that moment, with no porting. Calls from the office line, the trucks and the ads all land on the same homeowner record.

Can a caller who wants the dispatcher be put through?

Yes. The AI hears why the homeowner is calling and in which language, then sends the call to service, installs, billing or a named colleague by your rules. Your dispatcher hears who is calling and why before the call connects.

Will the AI try to diagnose a furnace or a breaker over the phone?

No. It asks what the system is doing and since when, then books the visit; whether the equipment is safe or what failed is for your technician on site. Hazard calls get your approved wording and a transfer to on-call.

What happens to a message the caller leaves?

The AI writes it out for the right person, reads the callback number back digit by digit and files it with call back, heard and done. A message dictated just before the caller hangs up is still written from the call.

Can a manager listen in on a live call?

Yes. A manager can follow a live call in real time from AI Phone, and every finished call keeps its transcript, summary and outcome on the homeowner's record for the next CSR who opens it.

Can an HVAC answering service book maintenance plan visits?

With AI Booking added, yes, it books appointments directly in the call: a plan member who rings for the spring tune-up hears the free windows of the right calendar, picks one and gets the confirmation by text before hanging up.

Keep exploring

Where next?

Start with the one thing you need. Add more anytime by asking Lisa.
AI Front Office for Home Services ›

Award-winning AI

Winner at CES 2026, ISE 2026 and TMCnet Enterprise AI Product of the Year.