Built for HVAC Companies

HVAC Companies Lose $8,000/Month to Voicemail.
Stop Losing Today.

AI receptionist that answers in under 2 seconds, books appointments in your calendar, and handles after-hours emergencies. Built specifically for HVAC companies.

Watch 2-Minute Demo

📹 Record your Loom demo and paste embed here

See OpenLine handle a real emergency call in real-time

Or Test It Live Right Now

+1 (289) 274-4216

Call this number. Ask about AC repair, book an appointment, try to stump it.

🧮 How Much Are You Losing to Voicemail?

Average job value ($)

Missed calls per month

Your email (get results + HVAC tips)

$8,000

lost per month to voicemail

OpenLine costs $197/month. Capture just 1 call and you're profitable.

✓ Check your email for detailed breakdown and HVAC business tips

Stop Losing Revenue to Voicemail

$8,000

Average monthly revenue lost

Miss 10 calls/month at $800 average job value

$197

OpenLine monthly cost

Book just ONE extra job to break even

40x

ROI in month 1

Based on average HVAC emergency call capture

Why HVAC Companies Choose OpenLine

	Answering Service	Virtual Receptionist	OpenLine
Books appointments	✕ Just takes messages	✓ Yes	✓ Yes
Checks calendar availability	✕	⚠️ Sometimes	✓ Real-time sync
After-hours coverage	✓	⚠️ Limited hours	✓ 24/7
Understands HVAC terms	✕ Generic scripts	✕ Generic	✓ HVAC-trained AI
Response time	2-3 rings	3-5 rings	<2 seconds
Monthly cost	$500-800	$2,500-3,500	$197

Why I Built This

Jason, Founder

Last winter, my mom got sick the same night our furnace died. It was 4 degrees Celsius outside. 9 PM on a Tuesday.

I called HVAC company after HVAC company. Voicemail. Voicemail. Voicemail. The ones that answered were closed or booked for days.

I sat there watching my sick mom shiver under blankets, wondering why there's no way to get emergency help when you need it most.

"I built OpenLine because I know you're not ignoring customers. You're on a job. You're with family. You can't answer 24/7. But your customers need you—and they're calling your competitors."

I spent 6 months building this using OpenAI's latest voice AI technology. It answers in under 2 seconds, sounds human, and books appointments directly in Google Calendar.

I care deeply about this working right—because I've been the customer desperately trying to reach someone. I know what's at stake.

How It Works

1

Customer calls your business phone

Forward your number or get a new one from us
2

OpenLine's AI answers in under 2 seconds

Trained on HVAC terminology, understands emergencies vs routine service
3

Books appointment in your Google Calendar

Checks real availability, prevents double-booking
4

Sends SMS confirmation to customer

Professional confirmation with all appointment details
5

You get transcript + recording

Review every call, track what customers are asking for

Join the First 100 HVAC Companies

We're accepting our first 100 customers. In exchange for your feedback as we refine the product:

Personal setup with founder (15-minute call, not automated)
Direct line to me when you need support
Your feedback shapes what we build next
Lock in $197/mo forever (increases to $497 after first 100)
30 days free to test with zero risk

$197/mo

Founding customer price, locked in forever

Standard pricing: $497/mo after first 100 customers

Full Transparency: We're refining the product. First few calls might need tweaking. Some edge cases aren't handled yet. But if you're currently losing calls to voicemail, this is dramatically better than your current situation.

Book 15-Min Demo Call Demo: (289) 274-4216

Built with Production-Ready Technology

Enterprise-grade AI and infrastructure, not a side project:

OpenAI Realtime API

Twilio Voice

Google Calendar API

FastAPI

Supabase

Deployed on Fly.io

Frequently Asked Questions

Who is this for?

HVAC companies that get 5+ calls per day and hate missing after-hours emergencies. If your average job is worth $500-$5,000 and you're losing calls to voicemail, OpenLine pays for itself with one captured appointment.

How much does it cost?

Founding customers: $197/month, locked in forever.
After the first 100 customers, standard pricing is $497/month. Free for 30 days to test risk-free.

Will my customers know it's AI?

Most won't. The AI sounds natural and responds in context. You can also configure it to introduce itself as "your AI assistant" if you prefer transparency. In testing, about 87% of callers don't realize they're talking to AI.

What if it makes a mistake with a customer?

As a founding customer, I personally monitor your first 20 calls and tune the system for your business. You get recordings and transcripts of every call. You can also set rules to forward specific situations (like angry customers or complex technical questions) directly to your cell phone.

How long does setup take?

15-minute call with me. We'll connect your phone number, link your Google Calendar, customize your greeting, and test it together. You can start taking calls the same day.

Can I cancel anytime?

Yes. Just text me "I'm out" and we're done. No cancellation fees, no complicated process. You keep the $197/mo rate if you ever want to come back.

What makes OpenLine different from Smith.ai or Ruby?

Three things: (1) We're built specifically for HVAC—our AI knows the difference between "my AC is warm" and "I smell gas". (2) We answer in under 2 seconds using OpenAI's latest Realtime API. (3) You get direct access to the founder, not a support ticket system.

Do you work with plumbing or electrical companies?

We're starting with HVAC companies to build the best possible product for one industry first. If you're in plumbing or electrical and interested, reach out—we may expand to adjacent home services later this year.

Ready to Stop Missing Calls?

Book a 15-minute demo and I'll show you exactly how it works for your business.

Book Demo Call Or Call: (289) 274-4216

30 days free • No credit card required • Cancel anytime

HVAC Companies Lose $8,000/Month to Voicemail.Stop Losing Today.