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AI Visibility Index · September 2026

Plumbers in São Paulo that AI assistants recommend

We asked ChatGPT, Claude and Gemini the four questions a buyer asks when looking for plumbers in São Paulo, three times each, in Portuguese, and counted who they named. These are the businesses named in two or more of the 36 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 · São Paulo
36%of answers named Hidrocenter
Answers
36
Businesses named
48
Named only once
26
Named by 2+ assistants
12 of 22
Named again on a rerun
41%

Edition September 2026. Download the data

Asked for plumbers in São Paulo, ChatGPT, Claude and Gemini most often named Hidrocenter (36% of answers), Marido de Aluguel (31%) and SOS Encanador (31%). Across 36 answers they named 48 different businesses, 26 of them only once. Each of four buyer questions was asked three times, in Portuguese, in September 2026.

The ranking

The AI Recommendation Rate is the fraction of the 36 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 São Paulo named by AI assistants, September 2026
#BusinessAI Recommendation RateChatGPTClaudeGeminiQuestionsAvg. position
1HidrocenterAlso written Hidrocenter Desentupidora 24 Horas, Hidrocenter Desentupidora e Encanador 24 Horas, Desentupidora e Encanadora Hidrocenter, Hidrocenter Assistência Técnica, Hidrocenter Caça Vazamentos, Hidrocenter Desentupidora e Encanador 24hIs this your business?36%95%: 23 to 52%67%42%0%4 of 41.2
2Marido de AluguelAlso written Marido de Aluguel SPIs this your business?31%95%: 18 to 47%0%17%75%3 of 41.7
3SOS EncanadorAlso written SOS Encanador SP, SOS Encanador São Paulo, SOS Encanador 24h, SOS Encanador 24 Horas, SOS Encanador 24 Horas São PauloIs this your business?31%95%: 18 to 47%17%25%50%4 of 42.5
4HidrotexIs this your business?22%95%: 12 to 38%0%0%67%3 of 42
5RinnaiAlso written Rinnai Brasil, Rinnai Brasil Assistência Técnica Autorizada, Rinnai Assistência Técnica Autorizada São PauloIs this your business?19%95%: 10 to 35%17%25%17%1 of 42.4
6Encanador 24 HorasAlso written Encanador 24 Horas SP, Encanador 24 Horas São PauloIs this your business?17%95%: 8 to 32%0%0%50%3 of 43.8
7HidroserviceAlso written Hidroservice Assistência Técnica, Hidroservice Desentupidora e Encanador 24 Horas, Hidroservice Desentupidora e Encanadora, Hidroservice Encanadores 24 Horas, Hidroservice EncanamentosIs this your business?14%95%: 6 to 29%33%8%0%3 of 41.6
8Roto-RooterAlso written Roto-Rooter Brasil, Desentupidora e Encanadora Roto-RooterIs this your business?14%95%: 6 to 29%17%17%8%2 of 42.2
9Desentupidora 24 HorasAlso written Desentupidora São Paulo 24 Horas, Desentupidora 24 Horas São PauloIs this your business?11%95%: 4 to 25%25%8%0%2 of 42
10KomecoAlso written Komeco Assistência Técnica Autorizada São PauloIs this your business?11%95%: 4 to 25%8%17%8%1 of 42.8
11Aquecedores PaulistaIs this your business?8%95%: 3 to 22%0%0%25%1 of 41
12Porto FazIs this your business?8%95%: 3 to 22%0%25%0%1 of 41
13GetNinjasIs this your business?8%95%: 3 to 22%0%25%0%1 of 42
14EsgotécnicaAlso written Desentupidora Esgotécnica 24 Horas, EsgotecnicaIs this your business?8%95%: 3 to 22%8%8%8%2 of 42.7
15Desentupidora e Encanador LigeirinhoIs this your business?8%95%: 3 to 22%0%0%25%2 of 43.7
16Dr. ResolveIs this your business?8%95%: 3 to 22%8%0%17%3 of 43.7
17Bosch Home ComfortAlso written Aquecedores BoschIs this your business?6%95%: 2 to 18%0%8%8%1 of 42.5
18Dr. Faz TudoIs this your business?6%95%: 2 to 18%0%17%0%1 of 43
19JúpiterAlso written Desentupidora e Encanadora Júpiter, Desentupidora JúpiterIs this your business?6%95%: 2 to 18%17%0%0%2 of 43
20Conserta AquecedoresIs this your business?6%95%: 2 to 18%0%0%17%1 of 43.5
21Aquecedores OrbisAlso written Aquecedores Orbis SPIs this your business?6%95%: 2 to 18%0%0%17%1 of 44
22LorenzettiAlso written Lorenzetti Assistência Técnica Autorizada São PauloIs this your business?6%95%: 2 to 18%8%0%8%1 of 44

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. 26 more names came up in a single answer and are counted above but not listed.

Is this your business?

See what the assistants say about your business today. The free checker asks ChatGPT, Claude, Gemini and Grok two of the Index questions for this category, with the category and the place already filled in, and shows every answer word for word. About 30 seconds, no sign-up.

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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.

#ChatGPTClaudeGemini
1Hidrocenter67%Hidrocenter42%Marido de Aluguel75%
2Hidroservice33%SOS Encanador25%Hidrotex67%
3Desentupidora 24 Horas25%Rinnai25%SOS Encanador50%
4SOS Encanador17%Porto Faz25%Encanador 24 Horas50%
5Rinnai17%GetNinjas25%Aquecedores Paulista25%

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 São Paulo, AIGROW AI Visibility Index, September 2026
<a href="https://aigrow.gg/index/plumbers/sao-paulo"><img src="https://aigrow.gg/badges/index/2026-09/plumbers/sao-paulo.svg" width="312" height="100" alt="Named by AI assistants: Plumbers in São Paulo, AIGROW AI Visibility Index, September 2026"></a>

The questions

Asked word for word, three times each, to every assistant, in Portuguese. The English under each is our translation. 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. 1Qual é o melhor encanador em São Paulo?Who is the best plumber in São Paulo?
  2. 2Tenho um cano vazando em casa em São Paulo. Qual empresa de encanamento devo chamar?I have a leaking pipe at home in São Paulo. Which plumbing company should I call?
  3. 3Preciso de um encanador que atenda emergências em São Paulo hoje à noite. Quem você recomenda?I need an emergency plumber in São Paulo tonight. Who would you recommend?
  4. 4Qual encanador em São Paulo você chamaria para trocar um aquecedor de água?Which plumber in São Paulo would you trust to replace a water heater?

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
36 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
Belo HorizonteRio de JaneiroLisbonPortoAarhusAmsterdam
Also in São Paulo
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 · published by Guglielmo Paesano, founder of AIGROW · data under CC BY 4.0