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AI Visibility Index · October 2026

Plumbers in Amsterdam that AI assistants recommend

We asked ChatGPT, Claude and Gemini the four questions a buyer asks when looking for plumbers in Amsterdam, three times each, in Dutch, 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 · Amsterdam
39%of answers named Loodgieter.nl
Answers
36
Businesses named
20
Named only once
6
Named by 2+ assistants
1 of 14
Named again on a rerun
58%

Edition October 2026. Download the data

Asked for plumbers in Amsterdam, ChatGPT, Claude and Gemini most often named Loodgieter.nl (39% of answers), Loodgieter Amsterdam 24/7 (28%) and Zoofy (19%). Across 36 answers they named 20 different businesses, 6 of them only once. Each of four buyer questions was asked three times, in Dutch, in October 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 Amsterdam named by AI assistants, October 2026
#BusinessAI Recommendation RateChatGPTClaudeGeminiQuestionsAvg. positionWith search
1Loodgieter.nlAlso written Loodgietersbedrijf AmsterdamIs this your business?39%95%: 25 to 55%33%0%83%4 of 41.40%
2Loodgieter Amsterdam 24/7Also written Loodgietersbedrijf Amsterdam 24/7Is this your business?28%95%: 16 to 44%0%0%83%4 of 430%
3ZoofyIs this your business?19%95%: 10 to 35%58%0%0%3 of 41.90%
4Amsterdamse Loodgieters CentraleIs this your business?19%95%: 10 to 35%0%0%58%3 of 420%
5Installatiebedrijf De KoningAlso written Loodgietersbedrijf De KoningIs this your business?19%95%: 10 to 35%0%0%58%3 of 43.30%
6FeenstraIs this your business?14%95%: 6 to 29%42%0%0%3 of 410%
7MrFixAlso written Mr FixIs this your business?14%95%: 6 to 29%42%0%0%3 of 41.40%
8Van der Heijden InstallatietechniekAlso written Loodgietersbedrijf Van der Heijden, Van der Heijden LoodgietersIs this your business?14%95%: 6 to 29%0%0%42%3 of 44.20%
9BonariusIs this your business?8%95%: 3 to 22%25%0%0%1 of 420%
10Spoed Loodgieter AmsterdamAlso written Loodgieter Amsterdam SpoedIs this your business?8%95%: 3 to 22%0%0%25%1 of 42.30%
11RRSIs this your business?8%95%: 3 to 22%25%0%0%2 of 430%
12Installatiebedrijf De JongIs this your business?6%95%: 2 to 18%0%0%17%1 of 420%
13De Loodgieter AmsterdamIs this your business?6%95%: 2 to 18%0%0%17%1 of 43.50%
14Snel Herstel LoodgietersIs this your business?6%95%: 2 to 18%0%0%17%2 of 440%

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

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.

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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
1Zoofy58%Named no businessLoodgieter.nl83%
2Feenstra42%Loodgieter Amsterdam 24/783%
3MrFix42%Amsterdamse Loodgieters Centrale58%
4Loodgieter.nl33%Installatiebedrijf De Koning58%
5Bonarius25%Van der Heijden Installatietechniek42%

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 Amsterdam, AIGROW AI Visibility Index, October 2026
<a href="https://aigrow.gg/index/plumbers/amsterdam"><img src="https://aigrow.gg/badges/index/2026-10/plumbers/amsterdam.svg" width="312" height="100" alt="Named by AI assistants: Plumbers in Amsterdam, AIGROW AI Visibility Index, October 2026"></a>

The questions

Asked word for word, three times each, to every assistant, in Dutch. 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. 1Wie is de beste loodgieter in Amsterdam?Who is the best plumber in Amsterdam?
  2. 2Ik heb thuis in Amsterdam een lekkende leiding. Welk loodgietersbedrijf kan ik het beste bellen?I have a leaking pipe at home in Amsterdam. Which plumbing company should I call?
  3. 3Ik heb vanavond in Amsterdam een loodgieter nodig voor een noodgeval. Wie raad je aan?I need an emergency plumber in Amsterdam tonight. Who would you recommend?
  4. 4Welke loodgieter in Amsterdam zou jij vertrouwen om mijn boiler te vervangen?Which plumber in Amsterdam would you trust to replace a water heater?

On this page the same questions were also asked with web search on, 2 answers. 0% of the businesses named with search were also named without it; the With search column above is each business's share of those answers.

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 the Netherlands. From the AI Source Map: 5 answers.

See every site for this category
trustoo.nl
Read in 100% of the answers
werkspot.nl
Read in 80% of the answers
lecoskeuze.nl
Read in 80% of the answers

Elsewhere in the Index

Plumbers elsewhere
RotterdamThe HagueUtrechtAntwerpGhentAarhus
Also in Amsterdam
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 October 2026 · published by Guglielmo Paesano, founder of AIGROW · data under CC BY 4.0