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AI Visibility Index · September 2026

Plumbers in Lugano that AI assistants recommend

We asked ChatGPT, Claude and Gemini the four questions a buyer asks when looking for plumbers in Lugano, three times each, in Italian, 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 · Lugano
19%of answers named Idrotermica
Answers
36
Businesses named
28
Named only once
18
Named by 2+ assistants
1 of 10
Named again on a rerun
17%

Edition September 2026. Download the data

Asked for plumbers in Lugano, ChatGPT, Claude and Gemini most often named Idrotermica (19% of answers), Cattaneo (17%) and Peverelli (11%). Across 36 answers they named 28 different businesses, 18 of them only once. Each of four buyer questions was asked three times, in Italian, 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 Lugano named by AI assistants, September 2026
#BusinessAI Recommendation RateChatGPTClaudeGeminiQuestionsAvg. position
1IdrotermicaAlso written Idrotermica Lugano SA, Idrotermica SAIs this your business?19%95%: 10 to 35%0%0%58%3 of 42.3
2CattaneoAlso written Cattaneo Impianti SA, Cattaneo SAIs this your business?17%95%: 8 to 32%0%0%50%3 of 43.2
3PeverelliAlso written Peverelli SA, Idraulica Peverelli SA, Termoidraulica Peverelli SAIs this your business?11%95%: 4 to 25%0%0%33%3 of 42.8
4Idraulico Lugano Pronto InterventoIs this your business?8%95%: 3 to 22%0%0%25%1 of 41
5Termoidraulica G. & C.Also written Termoidraulica G. & C. Sagl, Termoidraulica G. & C. SAIs this your business?8%95%: 3 to 22%0%0%25%2 of 42.7
6Bignasca SAIs this your business?8%95%: 3 to 22%0%0%25%2 of 43.7
7Galli & Co. SAIs this your business?6%95%: 2 to 18%0%0%17%2 of 41.5
8Sos Idraulico TicinoAlso written SOS Idraulico TicinoIs this your business?6%95%: 2 to 18%8%0%8%2 of 42
9G. & M.Also written G. & M. Idraulica Sagl, G. M. Termoidraulica SAIs this your business?6%95%: 2 to 18%0%0%17%2 of 42.5
10Bernasconi SAIs this your business?6%95%: 2 to 18%0%0%17%2 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. 18 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.

Check your businessNamed above? Add the badgeWhat the audit does

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
1Sos Idraulico Ticino8%Named no businessIdrotermica58%
2No other name twiceCattaneo50%
3Peverelli33%
4Idraulico Lugano Pronto Intervento25%
5Termoidraulica G. & C.25%

ChatGPT named no business in 11 of its 12 answers. Claude named no business in any of its 12 answers.

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

The questions

Asked word for word, three times each, to every assistant, in Italian. 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. 1Chi è il miglior idraulico a Lugano?Who is the best plumber in Lugano?
  2. 2Ho un tubo che perde in casa, a Lugano. Quale idraulico dovrei chiamare?I have a leaking pipe at home in Lugano. Which plumbing company should I call?
  3. 3Mi serve un idraulico d’urgenza a Lugano stasera. Chi mi consigli?I need an emergency plumber in Lugano tonight. Who would you recommend?
  4. 4Di quale idraulico a Lugano ti fideresti per sostituire il boiler?Which plumber in Lugano would you trust to replace a boiler?

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.

Where the assistants look

The sites read most often, with web search on, before the assistants answer about this category in Switzerland. From the AI Source Map: 7 answers.

See every site for this category
local.ch
Read in 100% of the answers
reddit.com
Read in 86% of the answers
search.ch
Read in 71% of the answers

Elsewhere in the Index

Plumbers elsewhere
BaselBernGenevaLausanneZurichBologna
Also in Lugano
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