The short answer
A missed call usually costs you the whole job, not just the call. In research commissioned by OpenAI and reported in September 2026, 45% of Australian construction businesses surveyed said they had lost work because of slow response times. Lead-response research found the odds of qualifying a lead were 21 times higher when contacted within 5 minutes rather than 30. Ringing back later is a long shot, because most people don’t answer unknown numbers. To stop the leak, the call has to be answered, or followed up, within minutes, including after hours.
What the research says
- 45% of Australian construction businesses surveyed had lost potential work because of slow response times (research commissioned by OpenAI, 1,000+ small and medium business owners, reported by Dynamic Business, September 2026).
- 62% of them said quoting, invoicing or scheduling takes up more of their week than the work itself (same research).
- In the Lead Response Management study (Oldroyd and InsideSales.com, 15,000+ leads), the odds of qualifying a lead were 21 times higher when it was contacted within 5 minutes instead of 30.
- Harvard Business Review’s study “The Short Life of Online Sales Leads” (2011) found most companies respond to new enquiries far too slowly, often hours or days later.
- 86% of calls from unknown numbers go unanswered (Hiya, State of the Call 2026). So when you ring a missed caller back from a number they don’t know, the odds are against you.
Some of this is older US research on web enquiries, not phone calls. But the pattern is the same everywhere: the business that responds first, while the customer is still keen, has the best shot at the job.
Work out what your missed calls cost
You don’t need an industry average. Use your own numbers:
| Step | Your number | Example |
|---|---|---|
| Calls you miss a week (check your call log) | 8 | |
| Share that are new work, not existing customers | Half, so 4 | |
| Share of those you’d normally win | 1 in 2, so 2 jobs | |
| Your average job value | $600 | |
| Work at risk each week | 2 × $600 = $1,200 |
Even if only a fraction of that work is really lost, it usually adds up to more in a month than any of the fixes below cost in a year.
Why voicemail and calling back don’t fix it
Voicemail only works if the caller leaves a message and waits. Most customers with a leaking tap or a dead power point don’t: they ring the next business on the list. When you do ring back that night, you’re calling from a number they may not recognise, and by then they may have booked someone else.
The fix is to answer the call, or follow up the enquiry, while the customer still wants it done, ideally within minutes.
Four ways to stop missing calls
| Fix | Good for | Watch out for |
|---|---|---|
| Divert to a family member or office person | Small volume, office hours | Nights, weekends and their own work |
| Human answering service | Taking messages 24/7 | Per-call fees, and you still ring everyone back |
| Hire a receptionist | Busy offices that need someone on site | About $66,500 a year for 38 hours a week |
| AI staff | Answering 24/7 and following up within minutes | Set it up with your rules on what to book and what to pass to you |
Our guide to what each option costs has the full numbers.
How LeadAI handles it
Anna, LeadAI’s receptionist, answers every call and text, day and night, takes down what the job is and texts you straight away when it’s urgent. On Growth, Emily follows up new enquiries within minutes, asks the questions you’d ask and books the job or site visit into your calendar.
Starter, with Anna on her own, is $750 a quarter plus GST. Growth, with five AI staff including Anna and Emily, is $950 a quarter plus GST, about $2.08 a day each.
Questions people ask
- How much work do tradies lose from missed calls?
- There’s no reliable single figure, but in OpenAI-commissioned research reported in September 2026, 45% of Australian construction businesses surveyed said they had lost work because of slow responses. Work out your own number from your call log and average job value.
- How fast should I respond to a new enquiry?
- Within minutes if you can. Lead-response research found the odds of qualifying a lead were 21 times higher at 5 minutes than at 30 minutes.
- Is calling back a missed call good enough?
- Often not. Many customers ring the next business straight away, and Hiya found 86% of calls from unknown numbers go unanswered, so your call back may not be picked up.
- What’s the cheapest way to answer every call?
- A message-taking answering service is the cheapest per call, but you still have to ring everyone back. AI staff answer 24/7 and can book the job and follow up, from $750 a quarter plus GST with LeadAI.
Sources
More guides
- Receptionist, answering service, VA or AI: what each really costs in Australia in 2026
Award wages, answering service per-call fees, offshore VA rates and AI plans, side by side, with the maths shown.
- How to follow up a quote without being pushy
When to follow up, what to say word for word, and the Spam Act and calling rules every follow-up text, email and call has to meet.