Plumbers in Antwerp that AI assistants recommend
We asked ChatGPT, Claude and Gemini the four questions a buyer asks when looking for plumbers in Antwerp, three times each, in Dutch, and counted who they named. These are the businesses named in two or more of the 36 answers.
Names are printed as the assistants wrote them. We have not checked that any of them is good, open, or real.
- Answers
- 36
- Businesses named
- 55
- Named only once
- 43
- Named by 2+ assistants
- 7 of 12
- Named again on a rerun
- 26%
Edition September 2026. Download the data
Asked for plumbers in Antwerp, ChatGPT, Claude and Gemini most often named Loodgieter 24/7 (64% of answers), Van den Bergh (36%) and Antwerpse Loodgieterscentrale (22%). Across 36 answers they named 55 different businesses, 43 of them only once. Each of four buyer questions was asked three times, in Dutch, 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.
| # | Business | AI Recommendation Rate | ChatGPT | Claude | Gemini | Questions | Avg. position |
|---|---|---|---|---|---|---|---|
| 1 | Loodgieter 24/7Also written Loodgieter Antwerpen 24/7, Loodgieter 24/7 AntwerpenIs this your business? | 95%: 48 to 78% | 58% | 50% | 83% | 4 of 4 | 1.8 |
| 2 | Van den BerghAlso written Loodgieter Antwerpen, Van den Bergh InstallatiesIs this your business? | 95%: 23 to 52% | 8% | 8% | 92% | 4 of 4 | 1.3 |
| 3 | Antwerpse LoodgieterscentraleAlso written Antwerpse Loodgieters CentraleIs this your business? | 95%: 12 to 38% | 0% | 8% | 58% | 4 of 4 | 1.9 |
| 4 | Van MarckeAlso written Sanitair & Verwarming Van Marcke Technics Antwerpen, Van Marcke Technics Antwerpen, Sanitair & Verwarming Van Marcke Antwerpen, Sanitair Van MarckeIs this your business? | 95%: 8 to 32% | 25% | 25% | 0% | 3 of 4 | 1.7 |
| 5 | Antwerpse LoodgieterAlso written Antwerpse Loodgieter Service, Loodgieter Service AntwerpenIs this your business? | 95%: 4 to 25% | 8% | 0% | 25% | 1 of 4 | 2.3 |
| 6 | De MeyerAlso written Installatiebedrijf De Meyer, Loodgieterij De MeyerIs this your business? | 95%: 4 to 25% | 0% | 0% | 33% | 3 of 4 | 3.8 |
| 7 | Sanitair De SmedtIs this your business? | 95%: 3 to 22% | 8% | 17% | 0% | 2 of 4 | 2.3 |
| 8 | Loodgieterij AntwerpenIs this your business? | 95%: 2 to 18% | 0% | 17% | 0% | 2 of 4 | 2 |
| 9 | Sani-TechnicsIs this your business? | 95%: 2 to 18% | 0% | 0% | 17% | 1 of 4 | 2 |
| 10 | Mampaey InstallatiesAlso written Mampaey InstallatietechniekenIs this your business? | 95%: 2 to 18% | 0% | 17% | 0% | 1 of 4 | 2.5 |
| 11 | DescoAlso written Desco Technics AntwerpenIs this your business? | 95%: 2 to 18% | 8% | 8% | 0% | 1 of 4 | 3 |
| 12 | Dierckx SanitairAlso written Dierckx Sanitair & VerwarmingIs this your business? | 95%: 2 to 18% | 17% | 0% | 0% | 2 of 4 | 3 |
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. 43 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.
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 | Loodgieter 24/758% | Loodgieter 24/750% | Van den Bergh92% |
| 2 | Van Marcke25% | Van Marcke25% | Loodgieter 24/783% |
| 3 | Dierckx Sanitair17% | Sanitair De Smedt17% | Antwerpse Loodgieterscentrale58% |
| 4 | Van den Bergh8% | Loodgieterij Antwerpen17% | De Meyer33% |
| 5 | Antwerpse Loodgieter8% | Mampaey Installaties17% | Antwerpse Loodgieter25% |
ChatGPT named no business in 1 of its 12 answers. Claude named no business in 1 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.
<a href="https://aigrow.gg/index/plumbers/antwerp"><img src="https://aigrow.gg/badges/index/2026-09/plumbers/antwerp.svg" width="312" height="100" alt="Named by AI assistants: Plumbers in Antwerp, AIGROW AI Visibility Index, September 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.
- 1Wie is de beste loodgieter in Antwerpen?Who is the best plumber in Antwerp?
- 2Ik heb thuis in Antwerpen een lekkende leiding. Welk loodgietersbedrijf kan ik het beste bellen?I have a leaking pipe at home in Antwerp. Which plumbing company should I call?
- 3Ik heb vanavond in Antwerpen een loodgieter nodig voor een noodgeval. Wie raad je aan?I need an emergency plumber in Antwerp tonight. Who would you recommend?
- 4Welke loodgieter in Antwerpen zou jij vertrouwen om mijn boiler te vervangen?Which plumber in Antwerp would you trust to replace a water heater?
How to read this page
- 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 Belgium. From the AI Source Map: 5 answers.
- trustup.be
- Read in 80% of the answers
- reddit.com
- Read in 80% of the answers
- svo-techniek.be
- Read in 60% of the answers
Elsewhere in the Index
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.
Edition September 2026 · published by Guglielmo Paesano, founder of AIGROW · data under CC BY 4.0