Plumbers in Liège that AI assistants recommend
We asked ChatGPT, Claude and Gemini the four questions a buyer asks when looking for plumbers in Liège, three times each, in French, 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
- 50
- Named only once
- 34
- Named by 2+ assistants
- 10 of 16
- Named again on a rerun
- 25%
Edition September 2026. Download the data
Asked for plumbers in Liège, ChatGPT, Claude and Gemini most often named SOS Plombier (31% of answers), Sanichauffe (31%) and Plomberie Liégeoise (28%). Across 36 answers they named 50 different businesses, 34 of them only once. Each of four buyer questions was asked three times, in French, 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 | SOS PlombierAlso written SOS Plombier Liège, SOS Plomberie LiègeIs this your business? | 95%: 18 to 47% | 25% | 42% | 25% | 2 of 4 | 1.9 |
| 2 | SanichauffeAlso written Sanichauffe Liège, Plomberie Sanichauffe Liège, Sani-Chauffe, Sanichauf, Sanichauff Liège, SanichauffageIs this your business? | 95%: 18 to 47% | 42% | 25% | 25% | 4 of 4 | 2.3 |
| 3 | Plomberie LiégeoiseIs this your business? | 95%: 16 to 44% | 0% | 8% | 75% | 3 of 4 | 1 |
| 4 | Plombier Liège 24/7Also written Plombier Liège, Plomberie Liège 24/7Is this your business? | 95%: 10 to 35% | 17% | 8% | 33% | 3 of 4 | 2 |
| 5 | Dépannage PlomberieAlso written Dépannage Plomberie Liège, Plomberie Dépannage Liège, Liège Dépannage PlomberieIs this your business? | 95%: 8 to 32% | 33% | 0% | 17% | 3 of 4 | 2.3 |
| 6 | Dépannage 24/7Also written Dépannage 24/7 LiègeIs this your business? | 95%: 4 to 25% | 0% | 8% | 25% | 2 of 4 | 2.3 |
| 7 | Dethier & FilsAlso written Chauffage & Sanitaire Dethier, Ets. Dethier & FilsIs this your business? | 95%: 4 to 25% | 0% | 0% | 33% | 3 of 4 | 2.3 |
| 8 | Delhez & FilsAlso written Chauffage & Sanitaire Delhez, Ets. Delhez & FilsIs this your business? | 95%: 4 to 25% | 0% | 0% | 33% | 3 of 4 | 2.8 |
| 9 | Plombier ExpressAlso written Plombier Express Liège, Plombier Liège ExpressIs this your business? | 95%: 3 to 22% | 0% | 8% | 17% | 2 of 4 | 3.3 |
| 10 | Artisan Plombier LiègeIs this your business? | 95%: 3 to 22% | 0% | 0% | 25% | 2 of 4 | 3.7 |
| 11 | Techni-ChauffageAlso written Techni-Chauffage & Sanitaire, Techni-Chauffage LiègeIs this your business? | 95%: 3 to 22% | 0% | 0% | 25% | 2 of 4 | 4.7 |
| 12 | Chauffage LemaireIs this your business? | 95%: 2 to 18% | 17% | 0% | 0% | 1 of 4 | 1 |
| 13 | Plomberie BertrandAlso written Plomberie Bertrand – LiègeIs this your business? | 95%: 2 to 18% | 8% | 8% | 0% | 2 of 4 | 1 |
| 14 | Plomberie LiègeIs this your business? | 95%: 2 to 18% | 8% | 8% | 0% | 1 of 4 | 1 |
| 15 | Chauffage Sanitaire LiégeoisIs this your business? | 95%: 2 to 18% | 8% | 8% | 0% | 2 of 4 | 1.5 |
| 16 | J.P. ServaisAlso written Ets. J.P. Servais, Plomberie & Chauffage J.P. ServaisIs this your business? | 95%: 2 to 18% | 0% | 0% | 17% | 1 of 4 | 4 |
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. 34 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 | Sanichauffe42% | SOS Plombier42% | Plomberie Liégeoise75% |
| 2 | Dépannage Plomberie33% | Sanichauffe25% | Plombier Liège 24/733% |
| 3 | SOS Plombier25% | Plomberie Liégeoise8% | Dethier & Fils33% |
| 4 | Plombier Liège 24/717% | Plombier Liège 24/78% | Delhez & Fils33% |
| 5 | Chauffage Lemaire17% | Dépannage 24/78% | SOS Plombier25% |
ChatGPT named no business in 2 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/liege"><img src="https://aigrow.gg/badges/index/2026-09/plumbers/liege.svg" width="312" height="100" alt="Named by AI assistants: Plumbers in Liège, AIGROW AI Visibility Index, September 2026"></a>The questions
Asked word for word, three times each, to every assistant, in French. 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.
- 1Quel est le meilleur plombier à Liège ?Who is the best plumber in Liège?
- 2J’ai une fuite chez moi à Liège. Quelle entreprise de plomberie dois-je appeler ?I have a leaking pipe at home in Liège. Which plumbing company should I call?
- 3J’ai besoin d’un plombier en urgence ce soir à Liège. Tu me recommanderais qui ?I need an emergency plumber in Liège tonight. Who would you recommend?
- 4Quel plombier à Liège choisirais-tu pour remplacer un chauffe-eau ?Which plumber in Liège 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