Book HVAC service appointments via WhatsApp with GoHighLevel and Gemini
Ready for 3.0Ready for 3.0. This template uses no nodes that n8n 3.0 removes. No removed nodes, versions or helpers found. Static check, last run 2026-10-19.
What this workflow does
This AI workflow has 11 nodes and runs on WhatsApp events (messages). Along the way it connects Google Gemini Chat Model, Redis Chat Memory, HighLevel and WhatsApp Business Cloud.
How it runs
Trigger: On WhatsApp events (messages).
- If: checks a condition and branches into true / false
- Fetch GHL Contacts (HighLevel): get many
- Customer Service Agent (AI Agent): runs an AI agent, with model: Gemini Chat Model; 4 tools (Update Contact Tool, Save User Issue Tool, Book Appointment Tool, Fetch Calendar Slots Tool); memory: Redis Chat Memory
- Send WhatsApp Message (WhatsApp Business Cloud): send
Services it uses
Before you upgrade to n8n 3.0
Nothing in this workflow is removed in n8n 3.0, so it should import and run after the upgrade.
Nodes used (8)
- AI Agent
@n8n/n8n-nodes-langchain.agent - Google Gemini Chat Model
@n8n/n8n-nodes-langchain.lmChatGoogleGemini - Redis Chat Memory
@n8n/n8n-nodes-langchain.memoryRedisChat - High Level Tool
n8n-nodes-base.highLevelTool - WhatsApp Business Cloud
n8n-nodes-base.whatsApp - If
n8n-nodes-base.if - HighLevel
n8n-nodes-base.highLevel - WhatsApp Trigger
n8n-nodes-base.whatsAppTrigger
From the author
Youtube Video For Workflow Explanation: https://youtu.be/3VTYQU7N6uU This workflow operates as an automated WhatsApp customer service and booking chatbot for an HVAC company (Blankarray HVAC Solutions). It connects WhatsApp, GoHighLevel (for CRM and…