Automated Missed-Call Follow-up Recovery Solution

## Project Title **Build a Reusable UK HVAC Missed-Call → SMS → WhatsApp Booking Automation** ## Project Description I need an experienced **automation developer** to build a reusable, white-label workflow for UK HVAC businesses. The purpose of the system is to recover missed customer calls and convert them into booked callbacks or technician visits. ### Core Workflow **Customer calls HVAC company** → Call is missed/unanswered → Wait around 10 seconds → Send an SMS with a WhatsApp link → Customer continues entirely on WhatsApp → Selects their issue → Provides name, postcode, address and problem details → Chooses either: * Request a callback * Book a technician/home visit → Appointment is added to calendar → HVAC business receives lead/job details → Customer receives WhatsApp confirmation and reminders → After job completion, customer receives a WhatsApp Google review request ## WhatsApp Flow After the initial SMS, the remaining customer journey should happen mainly inside WhatsApp. Suggested options: * No heating/cooling * Repair * New installation * Maintenance/service * Urgent issue * Other The customer should also be able to: * Send photos/videos * Reschedule * Cancel * Request a callback * Book available service slots ## Integrations Preferred stack: * **n8n** * Twilio or suitable UK telephony/SMS provider * WhatsApp Business API * Google Calendar / similar booking system * Google Sheets or lightweight database * Webhooks/APIs I am open to better technical recommendations. ## Very Important — Reusable Template This must NOT be built as a one-off system. I need a reusable white-label template that can be cloned for multiple HVAC clients. Important settings such as these should be easy to change: * Company name * Phone number * WhatsApp number * Owner/team contact * Services * Business hours * Service areas/postcodes * Calendar * Technicians * Appointment duration * Follow-up timings * Google review link ## Requirements The freelancer should provide: * Full workflow ownership * Exportable n8n workflow/template * Setup documentation * Short walkthrough video * Instructions for cloning it for a new HVAC client * Error handling/fallback logic * No dependency on the freelancer's personal accounts * Clean and organized workflow structure ## Important I do **not** need a generic AI chatbot. I need a reliable **missed-call recovery + WhatsApp booking system** designed specifically for HVAC businesses. Please include in your proposal: 1. Similar automation projects you have built 2. Your recommended tech stack 3. Fixed project price 4. Estimated delivery time 5. How you would handle UK telephony/SMS + WhatsApp integration 6. Whether the finished workflow will be fully reusable for multiple clients **Please only apply if you have real experience with n8n, webhooks/APIs, WhatsApp Business API and telephony/SMS integrations.**