Will callers know they are talking to an AI?

ElevenLabs produces voice that is indistinguishable from a human receptionist in most conversations. We select a voice that matches your company's tone, whether that is warm and friendly or professional and direct. The AI handles natural conversation patterns: it pauses when interrupted, responds to off script questions gracefully, and uses filler words that sound natural. In our testing with HVAC companies, fewer than 10% of callers realized they were speaking with an AI.

How does the AI handle true emergencies like a burst pipe at 3 AM?

The conversation engine includes an urgency classifier trained on water restoration scenarios. When a caller describes active flooding, water damage spreading, or electrical hazards near water, the AI immediately collects the address, confirms the nature of the emergency, and sends an SMS alert to your on call crew with all the details. The caller hears confirmation that a technician has been notified and receives a callback timeline. This happens in under 90 seconds from the start of the call. Non emergency calls (routine maintenance, pricing questions) follow the standard booking flow.

AI Receptionist for HVAC

AI Receptionist for HVAC and Water Restoration
ElevenLabs Voice AI. 2 Weeks.

HVAC and water restoration companies lose thousands in revenue every month from missed calls. A flooded basement at 2 AM does not wait for business hours. We build an AI receptionist powered by ElevenLabs that answers every call in a natural human voice, qualifies the emergency, books service appointments, and dispatches your on call crew via SMS. No hold music, no voicemail, no lost jobs.

14 day delivery

24/7 call answering

Full source code

Get Your Fixed-Price Estimate or book a 15-min fit call→

AI Agent ROI Calculator

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What Your AI Receptionist Does

Answers every call, books appointments, dispatches emergency crews, and captures leads. Your phones are covered 24/7 starting day 15.

ElevenLabs voice AI with a natural human voice that callers cannot distinguish from a real receptionist

24/7 call answering with zero hold time, handling multiple simultaneous calls

HVAC specific call scripts for AC repair, furnace issues, duct cleaning, and maintenance plans

Water restoration triage that identifies emergency severity and dispatches crews for urgent jobs

Appointment booking integrated with your existing scheduling system or a new booking engine

Instant SMS and email alerts to your dispatch team when emergency calls come in

Call transcription and summary delivered to your inbox after every conversation

Caller information capture: name, address, phone, issue description, and service history lookup

After hours emergency routing with escalation rules based on call urgency and crew availability

Service estimate quoting for common jobs based on your configured pricing matrix

Call analytics dashboard with volume, booking rates, emergency frequency, and missed call recovery

Customizable call scripts, greeting messages, business hours, and escalation rules

AI Receptionist Architecture

Incoming calls route through a telephony provider (Twilio) to the AI voice agent powered by ElevenLabs for speech synthesis and Whisper for speech recognition. The conversation engine runs on a Next.js API backend that manages the call flow: greeting, issue identification, urgency assessment, information collection, and booking or dispatch. The AI follows a decision tree specific to HVAC and water restoration: it knows the difference between a broken AC and a burst pipe, asks the right follow up questions, and routes accordingly. Non emergency calls book appointments through the scheduling engine. Emergency calls trigger immediate SMS alerts to on call technicians with the caller's address and issue summary. Every call is transcribed, summarized, and logged in PostgreSQL with searchable records and analytics. The dashboard shows call volume patterns, booking conversion rates, and emergency response times.

Tech Stack

Enterprise grade voice AI built for the trades. ElevenLabs for the voice, Twilio for the phones, custom intelligence for your business.

ElevenLabs

Voice synthesis

Twilio

Telephony

Whisper

Speech recognition

Next.js

Backend and dashboard

TypeScript

End to end type safety

PostgreSQL

Call logs and data

Drizzle ORM

Type safe queries

Resend

Email notifications

Vercel

Dashboard hosting

Railway

API hosting

14 Day Build Timeline

Day 1 to 2

Discovery and Scripts

60 minute deep dive into your business, call flow mapping, HVAC and restoration specific scripts, voice selection.

Day 3 to 5

Voice Agent Core

ElevenLabs voice setup, Twilio integration, conversation engine, issue identification, urgency triage.

Day 6 to 8

Booking and Dispatch

Appointment scheduling, emergency SMS dispatch, caller info capture, service history lookup.

Day 9 to 11

Intelligence

Pricing estimates, call transcription, summary generation, FAQ handling, edge case scripts.

Day 12 to 13

Dashboard and Testing

Call analytics dashboard, live call testing, script refinement, error handling, stress testing.

Day 14

Launch

Phone number porting or forwarding setup, production deployment, monitoring, founder walkthrough.

AI Receptionist for HVAC, Fixed Price

$9,499

14 day delivery • ElevenLabs voice • 30 day support

50% upfront, 50% on delivery • Multi location setups from $14,999

Start Your AI Receptionist

See an AI Voice Agent We Built

An AI voice agent that handles inbound calls, qualifies leads, and routes conversations to the right team member. The voice architecture powers 24/7 phone coverage for service businesses.

Read the AI Voice Agent Case Study