11d • Support Needed 💻
Building & Selling an AI Voice Agent for HVAC (Need Expert Guidance)
Hi everyone, this is Fatima (KB).
I’m currently building an AI voice agent for HVAC businesses using Retell AI, and I’d really appreciate some clear guidance from people who have real-world experience.
My situation:
- I understand the basics of Retell AI, n8n, and Make.com
- I’ve already built a simple working voice agent
- But I’m confused about how to structure it properly for real clients
- Different YouTube tutorials suggest completely different approaches, which is slowing me down
What I need help with:
1. Architecture
- Should I focus more on a strong system prompt or build a structured conversational flow?
- What’s the best way to handle real HVAC calls (bookings, inquiries, emergencies)?
2. Tech Stack
- What tools are actually necessary to start selling this service?
- When should I use Retell alone vs integrating n8n or Make.com?
- Do I need a CRM or database from the beginning?
3. Real Business Setup
- What is the minimum setup needed to start getting HVAC clients?
- What features do HVAC business owners actually care about most?
4. Workflow
- What should the full workflow look like from incoming call → AI handling → lead storage → follow-up?
5. Scaling
- Once I get my first 5–10 clients, what should I improve or automate next?
I’m trying to avoid overcomplicating things and just want a simple, practical roadmap focused on selling and delivering results.
I’d be really grateful for any advice or real experiences you can share.
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Building & Selling an AI Voice Agent for HVAC (Need Expert Guidance)
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