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Plumbers in Hamburg that AI assistants recommend

Rohrreinigung Hamburg 24h is named most, in 17% of 36 answers.

The ranking

AI Recommendation Rate

Plumbers in Hamburg named by AI assistants, November 2026

  1. 1Rohrreinigung Hamburg 24h17%

    95%: 8 to 32%

    ChatGPT
    0%
    Claude
    42%
    Gemini
    8%
    Questions
    2 of 4
    Avg. position
    1.3

    Named in answers to

    • I have a leaking pipe at home in Hamburg. Which plumbing company should I call?, from Claude
    • I need an emergency plumber in Hamburg tonight. Who would you recommend?, from Claude and Gemini

    Also written Rohrreinigung Hamburg 24h Notdienst

    Is this your business?
  2. 2Peter Jensen17%

    95%: 8 to 32%

    ChatGPT
    33%
    Claude
    0%
    Gemini
    17%
    Questions
    3 of 4
    Avg. position
    1.7

    Named in answers to

    • Who is the best plumber in Hamburg?, from ChatGPT and Gemini
    • I have a leaking pipe at home in Hamburg. Which plumbing company should I call?, from ChatGPT
    • Which plumber in Hamburg would you trust to replace a water heater?, from Gemini

    Also written Peter Jensen GmbH, Peter Jensen GmbH, Hamburg

    Is this your business?
  3. 3Böge & Söhne GmbH11%

    95%: 4 to 25%

    ChatGPT
    0%
    Claude
    0%
    Gemini
    33%
    Questions
    3 of 4
    Avg. position
    1.8

    Named in answers to

    • Who is the best plumber in Hamburg?, from Gemini
    • I need an emergency plumber in Hamburg tonight. Who would you recommend?, from Gemini
    • Which plumber in Hamburg would you trust to replace a water heater?, from Gemini
    Is this your business?
  4. 4H.C. Hagemann GmbH & Co. KG11%

    95%: 4 to 25%

    ChatGPT
    0%
    Claude
    0%
    Gemini
    33%
    Questions
    2 of 4
    Avg. position
    1.8

    Named in answers to

    • Who is the best plumber in Hamburg?, from Gemini
    • Which plumber in Hamburg would you trust to replace a water heater?, from Gemini
    Is this your business?
  5. 5Installateur Notdienst Hamburg11%

    95%: 4 to 25%

    ChatGPT
    0%
    Claude
    25%
    Gemini
    8%
    Questions
    1 of 4
    Avg. position
    2

    Named in answers to

    • I need an emergency plumber in Hamburg tonight. Who would you recommend?, from Claude and Gemini

    Also written Installateur Notdienst Hamburg GmbH

    Is this your business?
  6. 6Meisterbetrieb Klempner Hamburg8%

    95%: 3 to 22%

    ChatGPT
    0%
    Claude
    25%
    Gemini
    0%
    Questions
    1 of 4
    Avg. position
    3

    Named in answers to

    • I have a leaking pipe at home in Hamburg. Which plumbing company should I call?, from Claude
    Is this your business?
  7. 7Hanseatische Rohrreinigung & Sanitär Notdienst6%

    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 Hamburg tonight. Who would you recommend?, from Gemini
    Is this your business?
  8. 8Richter+Frenzel6%

    95%: 2 to 18%

    ChatGPT
    0%
    Claude
    17%
    Gemini
    0%
    Questions
    1 of 4
    Avg. position
    1

    Named in answers to

    • Which plumber in Hamburg would you trust to replace a water heater?, from Claude

    Also written Hamburg Wasser Installateur - Richter & Frenzel, Richter+Frenzel Hamburg

    Is this your business?
  9. 9B&O Service Hamburg6%

    95%: 2 to 18%

    ChatGPT
    17%
    Claude
    0%
    Gemini
    0%
    Questions
    2 of 4
    Avg. position
    1.5

    Named in answers to

    • I have a leaking pipe at home in Hamburg. Which plumbing company should I call?, from ChatGPT
    • I need an emergency plumber in Hamburg tonight. Who would you recommend?, from ChatGPT
    Is this your business?
  10. 10Sanitär Notdienst Hamburg6%

    95%: 2 to 18%

    ChatGPT
    0%
    Claude
    0%
    Gemini
    17%
    Questions
    2 of 4
    Avg. position
    2.5

    Named in answers to

    • Who is the best plumber in Hamburg?, from Gemini
    • I need an emergency plumber in Hamburg tonight. Who would you recommend?, from Gemini

    Also written Sanitär-Notdienst Hamburg

    Is this your business?
  11. 11Klaus Kock GmbH6%

    95%: 2 to 18%

    ChatGPT
    0%
    Claude
    0%
    Gemini
    17%
    Questions
    2 of 4
    Avg. position
    3

    Named in answers to

    • I need an emergency plumber in Hamburg tonight. Who would you recommend?, from Gemini
    • Which plumber in Hamburg would you trust to replace a water heater?, from Gemini
    Is this your business?
  12. 12Klaus-Peter Kock6%

    95%: 2 to 18%

    ChatGPT
    0%
    Claude
    0%
    Gemini
    17%
    Questions
    2 of 4
    Avg. position
    3

    Named in answers to

    • I have a leaking pipe at home in Hamburg. Which plumbing company should I call?, from Gemini
    • Which plumber in Hamburg would you trust to replace a water heater?, from Gemini

    Also written Klaus-Peter Kock GmbH, Klaus-Peter Kock Sanitärtechnik

    Is this your business?
  13. 13SHK Notdienst Hamburg6%

    95%: 2 to 18%

    ChatGPT
    0%
    Claude
    17%
    Gemini
    0%
    Questions
    1 of 4
    Avg. position
    3.5

    Named in answers to

    • I need an emergency plumber in Hamburg 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. 58 more names came up in a single answer and are counted above but not listed.

Plumbers in Hamburg: is this your field?

71different names in 36 answers, 58 of them only once. The assistants change their minds from one answer to the next.

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How 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 Hamburg, ChatGPT, Claude and Gemini named Rohrreinigung Hamburg 24h most often, in 17% of answers (its AI Recommendation Rate), then Peter Jensen (17%) and Böge & Söhne GmbH (11%). Across 36 answers they named 71 different businesses, 58 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.

Plumbers · Hamburg

17% of answers named Rohrreinigung Hamburg 24h

Answers
36
Businesses named
71
Named only once
58
Named by 2+ assistants
3 of 13
Named again on a rerun
14%

Edition November 2026. Download the data

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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
1Peter Jensen33%Rohrreinigung Hamburg 24h42%Böge & Söhne GmbH33%
2B&O Service Hamburg17%Installateur Notdienst Hamburg25%H.C. Hagemann GmbH & Co. KG33%
3No other name twiceMeisterbetrieb Klempner Hamburg25%Peter Jensen17%
4Richter+Frenzel17%Hanseatische Rohrreinigung & Sanitär Notdienst17%
5SHK Notdienst Hamburg17%Sanitär Notdienst Hamburg17%

ChatGPT named no business in 2 of its 12 answers. Claude named no business in 3 of its 12 answers.

Questions about plumbers in Hamburg

How AI assistants recommend plumbers

ChatGPT, Claude and Gemini named Rohrreinigung Hamburg 24h most often, in 17% of 36 answers, then Peter Jensen (17%) and Böge & Söhne GmbH (11%). 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 Peter Jensen most often (33% of its answers), Claude Rohrreinigung Hamburg 24h (42%) and Gemini Böge & Söhne GmbH (33%). 3 of the 13 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, 14% 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
Named by AI assistants: Plumbers in Hamburg, AIGROW AI Visibility Index, November 2026
<a href="https://aigrow.gg/index/plumbers/hamburg"><img src="https://aigrow.gg/badges/index/2026-11/plumbers/hamburg.svg" width="312" height="100" alt="Named by AI assistants: Plumbers in Hamburg, 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.

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

Where the assistants look

The sites read most often, with web search on, before the assistants answer about this category in Germany. From the AI Source Map: 8 answers.

See every site for this category
trustlocal.de
Read in 88% of the answers
reddit.com
Read in 88% of the answers
werkenntdenbesten.de
Read in 75% of the answers

AI Visibility Index

Elsewhere in the Index

Plumbers elsewhere
BerlinCologneDüsseldorfFrankfurtHanoverLeipzig
Also in Hamburg
DentistsLawyersAccountantsGymsReal estate agenciesRestaurants

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Read the method

Edition November 2026 · published by Guglielmo Paesano, founder of AIGROW · data under CC BY 4.0