How Perth tradies lose jobs to missed calls

A plumber is under a kitchen sink in Balcatta. His phone rings on the floor beside him. He cannot get to it. Four rings, then it stops.

By the time he is out from under the cupboard and washing his hands, that customer has rung two other numbers, spoken to one of them, and booked a time. Nobody left a voicemail. Nobody complained. From the plumber's side, absolutely nothing happened.

That is the whole problem in one paragraph. The work you lose this way never announces itself. There is no angry email and no bad review. There is just a Thursday that felt slower than it should have.

What a missed call is actually worth in Perth

Most articles on this subject pick one average job value and multiply it out. That produces a big number and a useless one, because the range in trade work is enormous.

Here is what the jobs behind those calls are actually worth in Perth right now.

Perth installed prices including GST, verified 2026.[1][2]

What is worth doing, and what almost nobody does, is counting your own. Over two weeks, log every call that came in and every one that got answered, split by inside and outside business hours. It is the first thing we do on an audit, and that fortnight of data is worth more than any figure in this article. You can run it yourself without us. When you have the fortnight’s numbers, the missed call calculator turns them into a yearly figure and shows the maths. If you also pay for leads, work out what each one really costs you per job.

Why the caller does not ring you back

The assumption most operators run on is that a missed call comes back around. They will leave a message, or try again later, or ring in the morning.

They mostly do not. Someone who reaches a voicemail hangs up and rings the next name on the list, and the call you never answered is the job you never hear about. In emergency work the business that answers first usually gets it, ahead of both price and reputation.

Worth being precise here, because this corner of the internet runs on confident percentages. The missed-call figures everyone quotes come from overseas phone vendors marketing their own product, not from Australian research, so we do not repeat them. The direction is not in doubt. The decimal places are, and a fortnight of your own call log settles it better than any of them.

Why Perth makes it worse

The distances are unusual

Perth is spread thin. A business based in Joondalup covers a corridor running most of the length of the Mitchell Freeway, and one in Osborne Park services suburbs where a single job can be worth several thousand dollars. Either way you are in the ute or on site for most of the day, and the phone is somewhere else. The gap between a call coming in and a competitor answering is measured in minutes.

HVAC demand arrives all at once

Perth logged at least nine days above 40°C in the 2024–25 summer, the second highest on record.[3] When that happens every air conditioning business in the city gets hit in the same week. Call volume roughly doubles at peak while the number of people able to answer stays exactly the same.

Plumbing emergencies do not respect office hours

Burst pipes and blocked drains do not wait for Monday morning. Since after-hours rates run 1.5 to 2 times standard,[1] the calls you are least likely to answer are the ones that pay best. A homeowner in Fremantle watching water come through a ceiling at 7pm is not leaving a message and waiting until Monday.

The three things breaking your follow-up

We have audited enough Perth trade businesses now to know these three turn up together far more often than any of them turns up alone.

1. You are the system

When every follow-up depends on you remembering, the business stops the day you do. Three days on a big job and six enquiries go cold. A weekend off and the quotes you sent last week sit unread by anyone, including you.

This is the one that gets called a discipline problem when it is really a design problem. No amount of checking your phone more often fixes a process that only runs when you personally run it.

2. Your texts may not be arriving

A lot of trade businesses have automated SMS set up and quietly wonder why nobody replies. The sequence fires, the platform says delivered, and nothing comes back.

In our experience the cause is almost always registration. Since 1 July 2026 every alphanumeric Sender ID, meaning a business name shown as the sender, must be listed on ACMA's SMS Sender ID Register. Carriers replace unregistered names with the word "Unverified", and those texts sit alongside the scam messages.[4] Texts sent from an ordinary phone number are not relabelled, which is one reason missed-call text-back should always go out from your own number. Which of your texts are affected, and how to register, is in why your business texts now say "Unverified".

That change matters more than it sounds. Before the register, anyone could send a text appearing to come from any business name, which is how the scam messages impersonating banks and toll operators worked. You can get everything else right and still lose the job because your reminder arrived looking like one of them.

Registration is separate from the Spam Act 2003, enforced by the Australian Communications and Media Authority. That law requires consent you can evidence, clear identification of your business by legal name or ABN, and a working unsubscribe processed within five business days. Breaches of the Spam Act carry penalties of up to A$3.64 million for a company and A$728,000 for an individual.[4]

3. Your old customer list has a due date on it

Most established Perth trade businesses have several hundred past customers sitting in a spreadsheet, an old CRM, or a drawer of paper invoices.

Be sceptical of anyone quoting you a reactivation response rate before they have seen your list, because that number depends entirely on how those contacts were collected and how long ago. What makes reactivation work is not volume, it is timing. Hot water systems last roughly eight to twelve years and air conditioners are not far behind. A list of past installs has a knowable replacement date attached to every line of it.

Contacting those customers before the unit fails turns an emergency callout into a planned job. Better for your diary, better for their weekend, and it costs nothing in advertising because you already own the list.

What the fix actually looks like

It is less complicated than most people expect, and it does not involve you learning software or hiring anyone. This is the order we build in, and the order matters.

1. Register the sender first. The ACMA Sender ID lodgement has the longest lead time of anything in a build, so it goes in on day one. Everything else is pointless if the messages do not arrive.
2. Text back every missed call inside a minute. From your own business number, in your own words, asking what the job is and which suburb. The customer gets an answer before they scroll further down Google.
3. Triage before anything reaches your phone. Ask whether water is actually escaping, or whether the aircon is dead in February. Real emergencies ring your mobile. Everything else books itself for the morning and you find out when you check the diary.
4. Follow up the quotes. Day 2, day 7, day 21, written the way you speak. Most operators never send a single follow-up, which is why we so often find this one line item pays for everything else.
5. Work the list you already own. Past installs, by age, contacted before the thing fails.

None of that requires you to change how you run jobs, quote, or invoice. It sits behind the ServiceM8 or Simpro you already use and pushes work into it.

Frequently asked questions