Findrix

Which plumbing services brands
AI recommends in Australia

Brands ranked by mention rate on ChatGPT, Gemini, Google AI Mode and Perplexity

Brands
26
Questions
317
Answers
3,804
AI engines
4

01 · Brand leader

Top 10 brands by mention rate

No single brand runs away with the category.
Several brands compete for the top places.

Google AI Mode
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#BrandMention rate Share of questions where Google AI Mode names the brandShare of voice The brand’s share of all brand mentions in the engine’s answers95% range The interval the true mention rate most likely falls inIn top 20 of The brand’s place inside each engine’s own top 20
11–9Metropolitan Plumbing5.7%29.1%3.6–8.8ChatGPT10Gemini1Google AI Mode1
21–20Rinnai3.3%7.2%1.8–5.8ChatGPT2Gemini5Google AI Mode2Perplexity4
31–20Rheem3.3%6.5%1.8–5.8ChatGPT4Gemini4Google AI Mode3Perplexity1
41–20Caroma3.2%4.6%1.7–5.7ChatGPT1Gemini2Google AI Mode4Perplexity2
51–20Reece2.6%4.2%1.4–5.0ChatGPT6Gemini3Google AI Mode5Perplexity5
61–20Colorbond1.9%6.0%0.9–4.1ChatGPT11Gemini8Google AI Mode6Perplexity8
71–20Jim's Plumbing1.9%9.0%0.9–4.1ChatGPT17Gemini9Google AI Mode7
81–20Methven1.7%2.7%0.7–3.8ChatGPT3Gemini6Google AI Mode8Perplexity3
91–20Dux1.7%2.1%0.7–3.8ChatGPT8Gemini11Google AI Mode9Perplexity12
102–20Bosch1.4%2.2%0.6–3.3ChatGPT9Gemini7Google AI Mode10Perplexity6

+6 more brands ranked below the top 20

Source: Findrix's research. Top plumbing services brands by Google AI Mode mention rate, Australia, Sep 2026.

02 · Engine consensus

Where each brand ranks
inside every engine’s top 10

There is no single AI top 10.
Only 6 of 15 brands rank in the top 10 of all 4 engines.

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BrandChatGPTGeminiGoogle AI ModePerplexityIn top 10 of
Caroma1242ChatGPTGeminiGoogle AI ModePerplexity
Rheem4431ChatGPTGeminiGoogle AI ModePerplexity
Rinnai2524ChatGPTGeminiGoogle AI ModePerplexity
Reece6355ChatGPTGeminiGoogle AI ModePerplexity
Methven3683ChatGPTGeminiGoogle AI ModePerplexity
Bosch97106ChatGPTGeminiGoogle AI ModePerplexity

Rank inside each engine’s own top 10 · a dash means the brand is not in that engine’s top 10.

The rest depend on which engine the buyer opens — so a rank from a single engine is not a market position.

Source: Findrix's research. Where each brand ranks inside every engine's top 10, plumbing services, Australia.

04b · Most cited domains

Which sites each engine cites, and
how much of its answers they carry

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DomainChatGPTGeminiGoogle AI ModePerplexity
google.com 0.1%4.7%18.5%–
youtube.com 0.3%0.4%13.0%–
nsw.gov.au 8.3%0.6%1.9%0.5%
jrgasandwater.com.au 0.4%5.1%5.3%–
sloanunderground.com –5.1%1×–
servicetitan.com ––5.0%<0.1%
reddit.com 0.1%0.7%1.5%4.4%
ausstarplumbing.com.au 1×3.8%0.4%0.8%
airtasker.com 0.1%–0.2%3.7%
facebook.com 0.8%–2.9%–
sydneywater.com.au 2.8%0.1%0.3%0.3%
qbcc.qld.gov.au 2.4%0.2%0.3%–

Each engine relies on a different information ecosystemThe domains that shape answers vary substantially
from one AI engine to another.

Source: Findrix research. Share of each engine's citations that goes to the domain. Sample: plumbing services questions, Australia, measured Sep 2026.

05 · The questions we asked

317 buyer questions, each
asked three times per engine

This isn’t a branded-prompt study.
75% of questions are problem- or solution-aware.

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Buyer questions by intent
IntentQuestions
Solution-aware160
Problem-aware77
Informational40
Branded comparison24
Branded sentiment16

By intent

Examples · Solution-aware

“Is DIY unblocking worth attempting versus professional Toilet & waste trap unblocking & repair for severe mainline clogs as of latest information?”

Drainage & Sewer Services · Solution-aware

“Should I choose traditional pipe excavation or Trenchless pipe relining & patch repair if my main priority is Speed of blockage clearing as of latest information?”

Drainage & Sewer Services · Solution-aware

Source: Findrix research. 317 buyer questions by intent, plumbing services, Australia.

05b · By product type

Which product segments
the questions cover

The study doesn’t hinge on one product category.
Questions span 8 plumbing services segments.

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Product segments covered by the question set
Segment
Water Supply and Fixture Plumbing
Gas Fitting Services
Drainage & Sewer Services
Emergency & Reactive Repair Plumbing
Roofing & Stormwater Plumbing
Hot Water System Services
Bathroom & Kitchen Renovation Plumbing
New Home & Construction Plumbing

8 segments

Examples · Water Supply and Fixture Plumbing

“Is Methven a good choice in water supply and fixture plumbing as of latest information?”

Water Supply and Fixture Plumbing · Branded sentiment

How we measure, and what the 95% range means

Source: Findrix research. 8 product segments covered by the question set, plumbing services, Australia.

Neighbouring markets · Home Services

  • United States · Australia

    Electrical Services

    Google AI Mode leader Generac · 18.7% · 34 brands measured

    Open this market
  • United States · Australia

    Heating & Air Conditioning

    Google AI Mode leader Daikin · 14.8% · 25 brands measured

    Open this market
  • United States · Australia

    Pest & Wildlife Control

    Google AI Mode leader Flick Anticimex · 14.6% · 24 brands measured

    Open this market
  • United States · Australia

    Pool & Spa Services

    Google AI Mode leader Poolwerx · 11.0% · 16 brands measured

    Open this market

Frequently asked questions

What does this Plumbing Services AI Search report measure?

Which plumbing services brands ChatGPT, Gemini, Google AI Mode and Perplexity name when buyers in Australia ask them for advice. We asked 317 buyer questions, each three times to each engine, and counted how often every brand appears and which websites the engines cite. Measured Sep 2026.

What does “mention rate” mean?

The share of questions where an engine names the brand in its answer. A 10% mention rate means the brand came up in about one question in ten. Every rate carries a 95% range: the interval the true value most likely falls in.

How are the top Plumbing Services brands ranked?

By mention rate, separately for each engine — pick the engine above the table. When two brands’ 95% ranges overlap, their order is not really different — tick “Only distinguishable places” to see the ranks the data can actually separate.

Why does a brand rank differently across AI engines?

Each engine retrieves from different sources and weighs them differently, so the brands it knows best differ too. Only 6 of 15 brands make the top 10 of every engine here; the rest depend on which engine the buyer opens.

What counts as a citation?

A link or source an engine shows alongside its answer. We record every cited domain, whether it appears inline or in the source list.

Why can AI mention a brand without citing its website?

Engines learn brand names from reviews, expert sites, retailers and forums, then cite those sources rather than the brand’s own pages. A brand can be named often while its own site is rarely among the sources.

What does “share of citations” mean?

Of all the citations one engine gave across our questions, the share that went to a given domain. The shares of one engine add up to 100%.

What types of Plumbing Services questions are included?

Questions real buyers ask across 8 product segments, from problem-aware to solution-aware, informational and branded ones. 75% are problem- or solution-aware; this is not a branded-prompt study.

Will I get the same answers if I ask these questions myself?

Not word for word. AI answers vary between runs, accounts and locations, which is why we ask every question three times per engine and report a 95% range instead of a single answer.