☎ Built For HVAC Companies

Every call answered. Every job caught.

A 24/7 voice agent that answers as your company, books the work, and texts you the summary. While you are on the roof, under the sink, or with a customer, it is on the phone.

The demo line answers live, any hour. The built demo goes further: it answers as your business, trained on your services, and it is with you within the hour.

Screenprint art: a vintage phone ringing on a tradesman's workbench beside work gloves and coffee
The bench phone never rings unanswered again

Run Your Own Numbers

What does the phone you cannot answer cost?

Calls Missed Per Week7
Close Rate30%
Average Job$6,800

Starts at a sample industry figure. Drag it to your real number.

Walking Out The Door Every Month

$61,404

Your numbers, your math: 7 missed calls a week, a 30% close rate, and a $6,800 average job. The voice agent answers every one of those calls for $297 a month.

Trained On Your Trade

It already speaks hvac companies.

AC and furnace repair, full system replacements, mini-splits, and seasonal tune-ups on a maintenance plan.

Booked jobs land on your schedule, every caller gets a text confirmation, and you get the summary the moment each call ends. Emergencies get flagged so the right ones wake you up.

Your Command Board

Maintenance plan engine

Recurring revenue and the replacement pipeline, the two numbers that decide an HVAC year.

Every built demo ships with a website designed from scratch for your trade, free to tour, and free to keep when you take the voice agent and the website together. This board is its centerpiece.

While You Slept

Sample Night
  • Gary P.8:41 PM

    AC quit, elderly mother in the house

    First slot held, 8 AM, you were texted

  • Dana K.10:02 PM

    Weird smell from the furnace

    Safety questions asked, visit booked

  • Unknown6:14 AM

    Do you do financing?

    Answered, quote visit set

Sample calls showing real product behavior for this trade.

The Board It Fills

What a hvac companie pipeline looks like by Friday.

Every answered call lands on a board built for this trade, moving through the stages you actually use: New lead, Quoted, Scheduled, Done. You are not translating your work into someone else’s software.

Gary P.$420

AC dead, house at 89 degrees

Scheduled

The Ortegas$8,400

Full system replacement quote

Quoted

Lakeview Dental$3,600

Rooftop unit service contract

Quoted

M. Reyes$240

New patient on the comfort plan

New lead

Sample pipeline for this trade, showing real product behavior.

The Day It Books

Calls answered at midnight become tomorrow at 7.

The voice agent does not just take a message. It puts the work on the calendar while the caller is still on the phone, which is the only moment they are guaranteed to still be yours.

Today

  • 8:00

    No-cool call, priority

    Gary P.

  • 10:30

    System replacement quote

    The Ortegas

  • 2:00

    Mini-split startup + walkthrough

    S. Nguyen

Sample schedule for this trade.

Beyond The Phone

Built for how hvac companies actually make money.

The voice agent is the front door. Behind it, the website carries the follow-through that this trade lives on, and taken together they are built as one thing.

Season flip campaign

First cold snap and first heat wave each trigger a tune-up push to every member. The schedule fills before the phones melt.

Aging unit radar

Systems past 12 years get flagged and their owners get a replacement quote offer before the mid-July failure.

Hear it before you ever pay for it.

01

Build The Demo

Type your business name at the demo station. A voice agent trained on your company is with you within the hour.

02

Call Your Own Demo

Your phone rings. You hear it answer as your business, handle a booking, and take a message. Judge it with your own ears.

03

We Install It

A human at Modern Mustard Seed wires it to your real line, services, hours, and booking flow. Plans from $297 a month, hard caps, no trial games.

Straight Answers

What hvac companies ask us first.

What does a voice agent for hvac companies actually handle?+

It answers every call in seconds, day or night, in a natural voice trained on your business. For this trade that means: ac and furnace repair, full system replacements, mini-splits, and seasonal tune-ups on a maintenance plan. It captures the caller's name, number, and job details, books the appointment or estimate, answers common questions, and texts you a summary the moment the call ends. You stay on the tools; nothing goes to voicemail.

How fast can I hear it answering for my business?+

About 60 seconds. Modern Mustard Seed builds a free demo trained on your business name and services, and your own phone rings with the voice agent answering as your company. There is no meeting, no setup call, and no card required for the demo. You judge it with your own ears first.

What does a missed call really cost?+

The average job in this trade runs around $6,800 (sample industry figure; your number may differ). If even a few callers a week hang up and dial the next company, the math compounds fast. The calculator on this page runs your own numbers: calls missed, close rate, and average job.

What does it cost once it is installed?+

Plans start at $297 a month plus a $297 one-time setup, with a hard minute cap, no free trial games, and no per-seat pricing. The right first step is the free built demo: hear it answer for your business, then decide. Every install is done by a human at Modern Mustard Seed and includes the setup of your services, hours, and booking flow.

Your next job is calling.

Build the free demo and hear your own voice agent in about a minute.