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AI Visibility Index · September 2026

Plumbers in Melbourne that AI assistants recommend

We asked ChatGPT and Claude the four questions a buyer asks when looking for plumbers in Melbourne, three times each, in English, and counted who they named. These are the businesses named in two or more of the 24 answers.

Check whether AI names youSee the ranking

Names are printed as the assistants wrote them. We have not checked that any of them is good, open, or real.

Plumbers · Melbourne
75%of answers named PlumbFirst Melbourne
Answers
24
Businesses named
36
Named only once
23
Named by 2+ assistants
10 of 13
Named again on a rerun
19%

Edition September 2026. Download the data

Asked for plumbers in Melbourne, ChatGPT and Claude most often named PlumbFirst Melbourne (75% of answers), Mr Splash Plumbing (38%) and O'Brien Plumbing Melbourne (17%). Across 24 answers they named 36 different businesses, 23 of them only once. Each of four buyer questions was asked three times, in English, in September 2026.

The ranking

Share is the fraction of the 24 answers that named a business. The range under it is a 95% confidence interval: where two ranges overlap, the gap between those businesses could be chance.

Plumbers in Melbourne named by AI assistants, September 2026
#BusinessShareChatGPTClaudeQuestionsAvg. position
1PlumbFirst MelbourneAlso written Plumb First Melbourne, Plumbfirst Melbourne75%95%: 55 to 88%83%67%4 of 41.3
2Mr Splash Plumbing38%95%: 21 to 57%42%33%3 of 42.7
3O'Brien Plumbing Melbourne17%95%: 7 to 36%25%8%2 of 43
4Plumber To The Rescue17%95%: 7 to 36%17%17%2 of 43.3
5The Plumbing Company Melbourne13%95%: 4 to 31%17%8%1 of 42
6The Plumbing Doctor13%95%: 4 to 31%8%17%3 of 42.3
7Plumb Medic13%95%: 4 to 31%0%25%3 of 42.7
824 Hour Melbourne Plumbers8%95%: 2 to 26%8%8%1 of 41
9Same Day Hot Water Service8%95%: 2 to 26%8%8%1 of 41.5
10Same Day Trades8%95%: 2 to 26%17%0%2 of 41.5
11Mr Emergency Plumbing Melbourne8%95%: 2 to 26%17%0%2 of 42
12Plumb FirstAlso written Plumbfirst8%95%: 2 to 26%8%8%2 of 42
13Plumbdog Plumbing8%95%: 2 to 26%8%8%1 of 43

Each assistant column is the share of that assistant's own answers. Questions counts how many of the four produced the name at least once; position is where it came in the answer's list, 1 being first. 23 more names came up in a single answer and are counted above but not listed.

What each assistant said

The same questions, the same number of times, and often different names. Each column is one assistant's top five from the ranking above, with the share of its own answers that named them.

#ChatGPTClaude
1PlumbFirst Melbourne83%PlumbFirst Melbourne67%
2Mr Splash Plumbing42%Mr Splash Plumbing33%
3O'Brien Plumbing Melbourne25%Plumb Medic25%
4Plumber To The Rescue17%Plumber To The Rescue17%
5The Plumbing Company Melbourne17%The Plumbing Doctor17%

Named here? Put it on your site

Every business in the ranking was named in two or more answers. The badge says that and nothing more: no position, because the ranges above do not support one. It links back to this page, so anyone can check.

Correct or remove a listing
Named by AI assistants: Plumbers in Melbourne, AIGROW AI Visibility Index, September 2026
<a href="https://aigrow.gg/index/plumbers/melbourne"><img src="https://aigrow.gg/badges/index/2026-09/plumbers/melbourne.svg" width="312" height="100" alt="Named by AI assistants: Plumbers in Melbourne, AIGROW AI Visibility Index, September 2026"></a>

The questions

Asked word for word, three times each, to every assistant through its API. The prompt is the one the free scan uses. No web search, no location and no chat history, so every answer starts from the same place.

  1. 1Who is the best plumber in Melbourne?
  2. 2I have a leaking pipe at home in Melbourne. Which plumbing company should I call?
  3. 3I need an emergency plumber in Melbourne tonight. Who would you recommend?
  4. 4Which plumber in Melbourne would you trust to replace a hot water system?

How to read this page

The full method
What it measures
Which names these models produce when asked cold, from what they learned in training. It is not a review, a rating or our recommendation, and a business missing here may simply be one the models were never shown.
Why the ranges matter
24 answers is a sample. Asked again next month, most shares will move by a few points; the ranges say how far they could move by chance alone.
One business, several spellings
Branches, legal suffixes and spellings of one business are merged, and the other spellings are printed under its name. Names that might be two businesses are kept apart.
A name is wrong
If a business here is closed, misnamed or yours and you want it removed, tell us. We correct or remove it when the page is next published.

Elsewhere in the Index

Plumbers elsewhere
BrisbanePerthSydneyAustinBarcelonaBasel
Also in Melbourne
DentistsLawyersAccountantsGymsReal estate agenciesRestaurants

Is your business on this list?

The free scan asks the same assistants the questions your customers ask, scores whether they name you, and lists who they name instead.

Run the free AI scanRead the method

Edition September 2026 · data under CC BY 4.0