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I will build fix and optimize ai voice agent ai receptionist vapi retell hvac plumbing
Mark Larry
About this gig
Is your AI voice agent failing during real calls, missing appointments, giving incorrect responses, or struggling with CRM integrations? I can help you build, fix, troubleshoot and optimize your AI voice agent for HVAC, plumbing and other home service businesses.
I work with Vapi AI and Retell AI voice agents to improve call handling, conversation flow, lead capture, appointment requests and business workflow integrations.
WHAT I CAN HELP WITH:
- Build an AI receptionist for HVAC, plumbing, electrical and repair companies
- Fix broken Vapi and Retell AI voice agent workflows
- Troubleshoot prompts, tool calls, API errors and webhooks
- Improve response quality, interruption handling and call flow
- Fix supported calendar, CRM and booking integrations
- Set up service enquiry capture, lead qualification and call routing
- Test agent behavior and optimize existing configurations
Whether you need a new AI phone agent or help repairing an existing setup, I will first understand your workflow, identify the scope and test the agreed changes.
TOOLS: Vapi AI, Retell AI, n8n, APIs, webhooks, calendar and CRM integrations.
Please message me before ordering troubleshooting work.
Get to know Mark Larry
Mark Larry
AI VOICE AGENT EXPERT, GOHIGHLEVEL A2P EXPERT, AI AUTOMATION EXPERT
- FromUnited States
- Member sinceOct 2026
Languages
English, Spanish, German
Hello
I help businesses set up AI voice agents and CRM automations that make handling calls, managing leads, and following up with customers easier. I work with tools such as Vapi, Retell AI, GoHighLevel, Twilio, and workflow automation platforms to connect voice systems with calendars, CRMs, and SMS workflows. From AI receptionist setup to A2P 10DLC registration support and troubleshooting, I focus on practical solutions, clear communication, and properly tested workflows built around each client's needs.
FAQ
Can you build a new AI voice agent for my home service company?
Yes. I can build an inbound AI receptionist for HVAC, plumbing, electrical and other repair businesses, with agreed call handling, enquiry capture and appointment-request workflows.
Can you fix an existing Vapi AI voice agent?
Yes. I can investigate supported Vapi configuration, prompt, tool-call, call-flow and integration issues. I will review the problem before confirming the scope.
Do you work with Retell AI?
Yes. I can help build, troubleshoot and optimize Retell AI agents, depending on the configuration and integrations involved.
What voice agent problems can you troubleshoot?
Examples include incorrect responses, failed tool calls, broken booking workflows, webhook errors, call-flow problems and supported integration failures.
Can you optimize my agent's prompts and conversations?
Yes. I can review instructions, conversation flow, caller questions, fallback behavior and supported interruption settings, then test the agreed changes.
Can you connect my agent to a CRM or calendar?
I can work with supported CRMs, calendars, APIs and webhooks. Tell me which systems you use so I can verify the integration requirements first.
Can the agent handle urgent plumbing or HVAC calls?
It can be configured to identify agreed urgent-call scenarios and route or escalate them where the phone system supports it. Critical calls should have a tested human fallback.
Do you offer appointment booking?
Yes, where the selected calendar or CRM supports the required workflow. We will confirm whether you need appointment requests or live availability checks and confirmed bookings.
What do you need to start troubleshooting?
Please provide the platform, a description of the issue, the expected behavior, the actual behavior, relevant error messages and the affected integration. Never send passwords or secret API keys in chat.
Are platform and phone-call fees included?
No. Your Vapi or Retell usage, phone number, telephony, and other third-party fees are separate. I will identify any additional services required before work begins.
