Roofers in Frankfurt that AI assistants recommend
We asked ChatGPT, Claude and Gemini the four questions a buyer asks when looking for roofers in Frankfurt, three times each, in German, 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
- 44
- Named only once
- 37
- Named by 2+ assistants
- 0 of 7
- Named again on a rerun
- 9%
Edition September 2026. Download the data
Asked for roofers in Frankfurt, ChatGPT, Claude and Gemini most often named Dachdeckerei & Bauklempnerei H. & M. Kaus GmbH (14% of answers) and Dachdeckerei & Fassadenbau Müller GmbH (11%). Across 36 answers they named 44 different businesses, 37 of them only once. Each of four buyer questions was asked three times, in German, 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 | Dachdeckerei & Bauklempnerei H. & M. Kaus GmbHIs this your business? | 95%: 6 to 29% | 0% | 0% | 42% | 3 of 4 | 1 |
| 2 | Dachdeckerei & Fassadenbau Müller GmbHIs this your business? | 95%: 4 to 25% | 0% | 0% | 33% | 2 of 4 | 2 |
| 3 | Dachdeckerei & Fassadenbau Peter Scherer GmbHAlso written Dachdeckerei & Fassadenbau Peter SchererIs this your business? | 95%: 3 to 22% | 0% | 0% | 25% | 3 of 4 | 2 |
| 4 | Dachdeckerei & Bauklempnerei H. & M. Schneider GmbHIs this your business? | 95%: 2 to 18% | 0% | 0% | 17% | 1 of 4 | 1 |
| 5 | Dachdeckerei & Fassadenbau Jörg KuhlmannIs this your business? | 95%: 2 to 18% | 0% | 0% | 17% | 2 of 4 | 2 |
| 6 | Dachdeckerei & Bauklempnerei Jörg MüllerAlso written Dachdeckerei & Klempnerei Jörg MüllerIs this your business? | 95%: 2 to 18% | 0% | 0% | 17% | 2 of 4 | 3 |
| 7 | Dachdeckerei & Bauklempnerei R. & M. Wenzel GmbHAlso written Dachdeckerei & Holzbau R. & M. Wenzel GmbHIs this your business? | 95%: 2 to 18% | 0% | 0% | 17% | 2 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. 37 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 | No other name twice | Named no business | Dachdeckerei & Bauklempnerei H. & M. Kaus GmbH42% |
| 2 | Dachdeckerei & Fassadenbau Müller GmbH33% | ||
| 3 | Dachdeckerei & Fassadenbau Peter Scherer GmbH25% | ||
| 4 | Dachdeckerei & Bauklempnerei H. & M. Schneider GmbH17% | ||
| 5 | Dachdeckerei & Fassadenbau Jörg Kuhlmann17% |
ChatGPT named no business in 10 of its 12 answers. 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.
<a href="https://aigrow.gg/index/roofers/frankfurt"><img src="https://aigrow.gg/badges/index/2026-09/roofers/frankfurt.svg" width="312" height="100" alt="Named by AI assistants: Roofers in Frankfurt, AIGROW AI Visibility Index, September 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 Dachdecker in Frankfurt?Who is the best roofer in Frankfurt?
- 2Das Dach meines Hauses in Frankfurt ist undicht. Welche Dachdeckerfirma soll ich anrufen?My roof is leaking in Frankfurt. Which roofing company should I call?
- 3Welchen Dachdecker in Frankfurt würdest du für eine komplette Neueindeckung meines Dachs empfehlen?Which roofing contractor in Frankfurt would you recommend for a full roof replacement?
- 4Welcher Dachdecker in Frankfurt kann mein Dach nach einem Sturm begutachten?Which roofer in Frankfurt can inspect my roof after a storm?
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 Germany. From the AI Source Map: 8 answers.
- werkenntdenbesten.de
- Read in 88% of the answers
- trustlocal.de
- Read in 75% of the answers
- ziegelruf.de
- Read in 75% of the answers
Elsewhere in the Index
- Also in Frankfurt
- DentistsLawyersAccountantsPlumbersGymsReal estate agencies
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