Plumbers in Basel that AI assistants recommend

Name: AI assistant recommendations: Plumbers in Basel, November 2026
Creator: AIGROW
License: https://creativecommons.org/licenses/by/4.0/

Rosenmund Haustechnik AG is named most, in 25% of 36 answers.

The ranking

AI Recommendation Rate

1Rosenmund Haustechnik AG25%
95%: 14 to 41%
ChatGPT
75%
Claude
0%
Gemini
0%
Questions
3 of 4
Avg. position
1.2
Named in answers to
- Who is the best plumber in Basel?, from ChatGPT
- I have a leaking pipe at home in Basel. Which plumbing company should I call?, from ChatGPT
- I need an emergency plumber in Basel tonight. Who would you recommend?, from ChatGPT
Is this your business?
2H.P. Gysin AG22%
95%: 12 to 38%
ChatGPT
0%
Claude
0%
Gemini
67%
Questions
4 of 4
Avg. position
1.8
Named in answers to
- Who is the best plumber in Basel?, from Gemini
- I have a leaking pipe at home in Basel. Which plumbing company should I call?, from Gemini
- I need an emergency plumber in Basel tonight. Who would you recommend?, from Gemini
- Which plumber in Basel would you trust to replace a water heater?, from Gemini
Is this your business?
3Sanitär Notfall Basel19%
95%: 10 to 35%
ChatGPT
0%
Claude
50%
Gemini
8%
Questions
2 of 4
Avg. position
1
Named in answers to
- I have a leaking pipe at home in Basel. Which plumbing company should I call?, from Claude
- I need an emergency plumber in Basel tonight. Who would you recommend?, from Claude and Gemini
Is this your business?
4Wullschleger14%
95%: 6 to 29%
ChatGPT
0%
Claude
0%
Gemini
42%
Questions
3 of 4
Avg. position
2.8
Named in answers to
- Who is the best plumber in Basel?, from Gemini
- I need an emergency plumber in Basel tonight. Who would you recommend?, from Gemini
- Which plumber in Basel would you trust to replace a water heater?, from Gemini
Also written Wullschleger Sanitär AG, Wullschleger AG
Is this your business?
5Sanitär Basel AG11%
95%: 4 to 25%
ChatGPT
0%
Claude
17%
Gemini
17%
Questions
3 of 4
Avg. position
1
Named in answers to
- Who is the best plumber in Basel?, from Claude
- I have a leaking pipe at home in Basel. Which plumbing company should I call?, from Gemini
- Which plumber in Basel would you trust to replace a water heater?, from Claude
Is this your business?
6Sanitas Troesch11%
95%: 4 to 25%
ChatGPT
17%
Claude
8%
Gemini
8%
Questions
3 of 4
Avg. position
2
Named in answers to
- I have a leaking pipe at home in Basel. Which plumbing company should I call?, from Claude
- I need an emergency plumber in Basel tonight. Who would you recommend?, from ChatGPT
- Which plumber in Basel would you trust to replace a water heater?, from ChatGPT and Gemini
Also written Sanitas Troesch AG, Sanitas Troesch AG Basel
Is this your business?
7Rohrmax11%
95%: 4 to 25%
ChatGPT
0%
Claude
33%
Gemini
0%
Questions
2 of 4
Avg. position
2.5
Named in answers to
- I have a leaking pipe at home in Basel. Which plumbing company should I call?, from Claude
- I need an emergency plumber in Basel tonight. Who would you recommend?, from Claude
Also written Rohrmax Basel, Rohrmax AG
Is this your business?
8Kull Sanitär AG8%
95%: 3 to 22%
ChatGPT
0%
Claude
0%
Gemini
25%
Questions
3 of 4
Avg. position
2.3
Named in answers to
- I have a leaking pipe at home in Basel. Which plumbing company should I call?, from Gemini
- I need an emergency plumber in Basel tonight. Who would you recommend?, from Gemini
- Which plumber in Basel would you trust to replace a water heater?, from Gemini
Is this your business?
9Hälg & Co. AG8%
95%: 3 to 22%
ChatGPT
25%
Claude
0%
Gemini
0%
Questions
2 of 4
Avg. position
2.7
Named in answers to
- Who is the best plumber in Basel?, from ChatGPT
- I need an emergency plumber in Basel tonight. Who would you recommend?, from ChatGPT
Is this your business?
10Bader Sanitär8%
95%: 3 to 22%
ChatGPT
0%
Claude
0%
Gemini
25%
Questions
2 of 4
Avg. position
3
Named in answers to
- Who is the best plumber in Basel?, from Gemini
- I have a leaking pipe at home in Basel. Which plumbing company should I call?, from Gemini
Also written Bader Sanitär AG, Bader Sanitär GmbH
Is this your business?
11Sanitär Notdienst Basel6%
95%: 2 to 18%
ChatGPT
0%
Claude
0%
Gemini
17%
Questions
1 of 4
Avg. position
1
Named in answers to
- I need an emergency plumber in Basel tonight. Who would you recommend?, from Gemini
Is this your business?
12Sanitär Müller AG6%
95%: 2 to 18%
ChatGPT
0%
Claude
0%
Gemini
17%
Questions
2 of 4
Avg. position
1.5
Named in answers to
- I have a leaking pipe at home in Basel. Which plumbing company should I call?, from Gemini
- Which plumber in Basel would you trust to replace a water heater?, from Gemini
Is this your business?
13Bolliger Haustechnik6%
95%: 2 to 18%
ChatGPT
0%
Claude
8%
Gemini
8%
Questions
2 of 4
Avg. position
2
Named in answers to
- I need an emergency plumber in Basel tonight. Who would you recommend?, from Gemini
- Which plumber in Basel would you trust to replace a water heater?, from Claude
Also written Bolliger Haustechnik AG, Bolliger Sanitär AG
Is this your business?
14Häring Haustechnik6%
95%: 2 to 18%
ChatGPT
0%
Claude
8%
Gemini
8%
Questions
2 of 4
Avg. position
2.5
Named in answers to
- Who is the best plumber in Basel?, from Claude
- Which plumber in Basel would you trust to replace a water heater?, from Gemini
Also written Häring AG Sanitär Heizung, Häring Haustechnik AG
Is this your business?
15Tschudin Haustechnik6%
95%: 2 to 18%
ChatGPT
17%
Claude
0%
Gemini
0%
Questions
1 of 4
Avg. position
2.5
Named in answers to
- Which plumber in Basel would you trust to replace a water heater?, from ChatGPT
Also written Tschudin AG, Tschudin Haustechnik AG
Is this your business?
16Bachmann Haustechnik AG6%
95%: 2 to 18%
ChatGPT
0%
Claude
17%
Gemini
0%
Questions
1 of 4
Avg. position
3
Named in answers to
- Which plumber in Basel would you trust to replace a water heater?, from Claude
Is this your business?
17BWT6%
95%: 2 to 18%
ChatGPT
17%
Claude
0%
Gemini
0%
Questions
1 of 4
Avg. position
3
Named in answers to
- I need an emergency plumber in Basel tonight. Who would you recommend?, from ChatGPT
Also written BWT AQUA AG, BWT Bau- und Wassertechnik AG
Is this your business?
18Notfall24 Basel6%
95%: 2 to 18%
ChatGPT
0%
Claude
17%
Gemini
0%
Questions
1 of 4
Avg. position
4
Named in answers to
- I need an emergency plumber in Basel tonight. Who would you recommend?, from Claude
Is this your business?
19Pfiffner Haustechnik AG6%
95%: 2 to 18%
ChatGPT
0%
Claude
17%
Gemini
0%
Questions
2 of 4
Avg. position
4
Named in answers to
- Who is the best plumber in Basel?, from Claude
- I need an emergency plumber in Basel tonight. Who would you recommend?, from Claude
Is this your business?

Open a row to see each assistant's share of its 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. 51 more names came up in a single answer and are counted above but not listed.

Plumbers in Basel: is this your field?

70different names in 36 answers, 51 of them only once. The assistants change their minds from one answer to the next.

Check whether AI names you

Is this your business?

Named on this list? Get the badge for your website and a free scan of who AI assistants recommend to your customers. Use the badge only for a business named here. It records this edition, without verifying ownership or promising future mentions.

AIGROW ScoreIs this your business? See your AIGROW ScoreHow the AIGROW Score is measured

No business can pay to appear in the Index, rise in it or be removed from it. How the Index stays neutral

AI Visibility Index · November 2026

Asked about plumbers in Basel, ChatGPT, Claude and Gemini named Rosenmund Haustechnik AG most often, in 25% of answers (its AI Recommendation Rate), then H.P. Gysin AG (22%) and Sanitär Notfall Basel (19%). Across 36 answers they named 70 different businesses, 51 of them only once. Each of four buyer questions was asked three times, in German, in November 2026.

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.

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

25% of answers named Rosenmund Haustechnik AG

Answers: 36
Businesses named: 70
Named only once: 51
Named by 2+ assistants: 5 of 19
Named again on a rerun: 25%

Edition November 2026. Download the data

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.

#	ChatGPT	Claude	Gemini
1	Rosenmund Haustechnik AG75%	Sanitär Notfall Basel50%	H.P. Gysin AG67%
2	Hälg & Co. AG25%	Rohrmax33%	Wullschleger42%
3	Sanitas Troesch17%	Sanitär Basel AG17%	Kull Sanitär AG25%
4	Tschudin Haustechnik17%	Bachmann Haustechnik AG17%	Bader Sanitär25%
5	BWT17%	Notfall24 Basel17%	Sanitär Basel AG17%

Claude named no business in 1 of its 12 answers.

Questions about plumbers in Basel

How AI assistants recommend plumbers

ChatGPT, Claude and Gemini named Rosenmund Haustechnik AG most often, in 25% of 36 answers, then H.P. Gysin AG (22%) and Sanitär Notfall Basel (19%). The names come from what the assistants answered to four buyer questions in November 2026; we have not checked that any of them is good, open or real.

Not always. ChatGPT named Rosenmund Haustechnik AG most often (75% of its answers), Claude Sanitär Notfall Basel (50%) and Gemini H.P. Gysin AG (67%). 5 of the 19 listed businesses were named by two or more of them.

Each question was asked three times. Of the names an assistant gave for a question, 25% came back in two or more of those runs; the rest came up once. The 95% range beside each rate in the ranking shows how far it could move by chance.

Run the free checker: it asks ChatGPT, Claude, Gemini and Grok two of the Index questions for plumbers, with the category and the place already filled in, and shows every answer word for word. About 30 seconds, no sign-up. The page on how AI assistants recommend plumbers shows what an owner can work on. Nothing can guarantee that an assistant names you.

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

<a href="https://aigrow.gg/index/plumbers/basel"><img src="https://aigrow.gg/badges/index/2026-11/plumbers/basel.svg" width="312" height="100" alt="Named by AI assistants: Plumbers in Basel, AIGROW AI Visibility Index, November 2026"></a>

The questions

Asked word for word, three times each, to every assistant, in German. 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.

1Wer ist der beste Sanitärinstallateur in Basel?Who is the best plumber in Basel?
2Bei mir zu Hause in Basel leckt ein Rohr. Welchen Sanitärbetrieb soll ich anrufen?I have a leaking pipe at home in Basel. Which plumbing company should I call?
3Ich brauche heute Abend einen Sanitär-Notdienst in Basel. Wen empfiehlst du?I need an emergency plumber in Basel tonight. Who would you recommend?
4Welchem Sanitärinstallateur in Basel würdest du den Austausch eines Boilers anvertrauen?Which plumber in Basel 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.