n8n
$3,850 a month from missed calls
An agency operator sells one system to HVAC, plumbing and roofing firms: missed-call recovery. When a call is missed, an n8n workflow sends a text in about 4 seconds. An AI intake chat takes the address and the problem. It books a dispatch slot on the firm's calendar. He sold it with proof. He audited 120 local firms by calling them at lunch. He sent a short video audit to each firm that missed his call.
How it wentFrom 54 video audits he booked 14 calls and closed 5 retainer clients: 3 HVAC firms, 1 plumber and 1 roofer (poster's claims). He reports $3,850 a month in recurring fees. His own cost figures vary inside the post: $14.20 a month in one place, $4.80 for hosting in his stack table.
Try it · based on the source's workflow
Build a missed-call recovery flow for [business name]. When a call to [phone number] is missed or goes to voicemail, send this text within seconds: "Hi, this is [name] at [business name]. Sorry we missed your call. Is this an emergency or standard work? Reply with your address and a short line on the problem." Ask only for the address and the problem type. Never quote a price or a arrival time. If the reply shows an emergency, alert [owner phone or channel] at once. Offer booking times only from [calendar]. Show me the full test conversation before this goes live.
A starting template based on the workflow the source describes. Review it before you use it; you are responsible for what it does.