A Melbourne plumber was losing $6,750/month in missed after-hours calls. An AI voice agent captured 47 leads in 30 days for $199/month — a 72x ROI.
A Melbourne plumber was losing $6,750/month in missed after-hours calls. An AI voice agent captured 47 leads in 30 days for $199/month — a 72x ROI.
The Problem
Dave runs a three-person plumbing business in Melbourne eastern suburbs. Good reputation, steady referrals, but one problem kept eating his revenue: missed calls.
Between 5pm and 9pm every weeknight, Dave was getting 3-4 calls from potential customers. Emergency leaks, quote requests, blocked drains. By the time he checked voicemail the next morning, most had already called someone else.
The Numbers Before AI
| Metric | Before |
|---|---|
| Missed calls per week | 15-20 |
| After-hours leads captured | 0 |
| Average job value | $450 |
| Estimated monthly revenue lost | $6,750+ |
Dave was leaving nearly $7,000 on the table every month. Not because he lacked skill or customers — because he could not physically answer the phone while eating dinner with his family.
What Changed
Dave set up an AI voice agent that:
- Answers every call in 2 rings, 24/7
- Qualifies the enquiry — emergency vs routine, location, job type
- Books appointments directly into his Google Calendar
- Sends a summary to his phone via SMS within 30 seconds
- Handles common questions about pricing, service areas, and availability
The setup took less than 48 hours. No new phone number needed — the AI connects to his existing business line.
The Results After 30 Days
| Metric | Before | After |
|---|---|---|
| Missed calls per week | 15-20 | 1-2 |
| After-hours leads captured | 0 | 12 per week |
| Appointments booked by AI | 0 | 8 per week |
| Monthly revenue from AI leads | $0 | $14,400 |
| AI cost per month | $0 | $199 |
That is a 72x return on investment. For every dollar Dave spends on his AI agent, he gets $72 back.
What Callers Experience
The AI does not sound robotic. It greets callers naturally, asks about their plumbing issue, checks Dave calendar availability, and books them in. If it is an emergency, it flags it as urgent and sends Dave an immediate SMS.
Most callers do not realise they are talking to AI. The ones who do are usually impressed.
The Bigger Picture
Dave is not unique. Every trade business in Australia faces the same problem. Electricians, builders, HVAC techs, landscapers — they all lose leads because they cannot answer the phone while working.
The businesses that solve this problem first will capture the leads that their competitors miss.
Want the Same Results?
We help Australian trades businesses set up AI voice agents that capture every call. Setup takes 48 hours, costs less than a part-time receptionist, and pays for itself in the first week.
Book a free discovery call and see the AI in action.
Frequently Asked Questions
Written by Syed Bilgrami
Founder of TheAutomate.io — building AI voice agents for Australian businesses
