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AI Visibility Index · September 2026

Roofers in Copenhagen that AI assistants recommend

We asked ChatGPT, Claude and Gemini the four questions a buyer asks when looking for roofers in Copenhagen, three times each, in Danish, 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.

Roofers · Copenhagen
53%of answers named Jydsk Tagteknik
Answers
36
Businesses named
32
Named only once
18
Named by 2+ assistants
3 of 14
Named again on a rerun
42%

Edition September 2026. Download the data

Asked for roofers in Copenhagen, ChatGPT, Claude and Gemini most often named Jydsk Tagteknik (53% of answers), Phønix Tag (33%) and Phønix Tag Materialer (19%). Across 36 answers they named 32 different businesses, 18 of them only once. Each of four buyer questions was asked three times, in Danish, 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.

Roofers in Copenhagen named by AI assistants, September 2026
#BusinessAI Recommendation RateChatGPTClaudeGeminiQuestionsAvg. position
1Jydsk TagteknikAlso written Jydsk Tagteknik A/SIs this your business?53%95%: 37 to 68%75%0%83%4 of 41.7
2Phønix TagAlso written Phønix Tag København A/S, Phønix Tag KøbenhavnIs this your business?33%95%: 20 to 50%75%0%25%4 of 41.5
3Phønix Tag MaterialerIs this your business?19%95%: 10 to 35%0%0%58%4 of 41.9
4Hovedstadens TagentrepriseIs this your business?14%95%: 6 to 29%0%0%42%3 of 42.6
5TagmandenAlso written Tagmanden ApSIs this your business?14%95%: 6 to 29%0%0%42%3 of 44
6Dansk Tagdækning A/SIs this your business?8%95%: 3 to 22%25%0%0%2 of 41.7
7Københavns Tagdækning ApSIs this your business?8%95%: 3 to 22%8%0%17%2 of 43.7
8J. Jensen TagdækningAlso written J. Jensen TagentrepriseIs this your business?6%95%: 2 to 18%0%0%17%2 of 41
9H.J. Hansen TagdækningAlso written H.J. Hansen Tagdækning ApS, H.J. Hansen TagentrepriseIs this your business?6%95%: 2 to 18%0%0%17%2 of 42
10TagGruppen A/SIs this your business?6%95%: 2 to 18%17%0%0%2 of 42
11Københavns TagentrepriseAlso written Copenhagen TagentrepriseIs this your business?6%95%: 2 to 18%0%0%17%2 of 42.5
12H.C. Jensen & SønAlso written H.C. Jensen & Søn A/S, H.C. Jensen & Søn TagdækningIs this your business?6%95%: 2 to 18%0%0%17%2 of 43.5
13Dansk TagbygIs this your business?6%95%: 2 to 18%0%0%17%2 of 44.5
14Københavns TagserviceIs this your business?6%95%: 2 to 18%0%0%17%1 of 44.5

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. 18 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.

Check your businessNamed above? Add the badgeWhat the audit does

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
1Jydsk Tagteknik75%No other name twiceJydsk Tagteknik83%
2Phønix Tag75%Phønix Tag Materialer58%
3Dansk Tagdækning A/S25%Hovedstadens Tagentreprise42%
4TagGruppen A/S17%Tagmanden42%
5Københavns Tagdækning ApS8%Phønix Tag25%

Claude named no business in 11 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: Roofers in Copenhagen, AIGROW AI Visibility Index, September 2026
<a href="https://aigrow.gg/index/roofers/copenhagen"><img src="https://aigrow.gg/badges/index/2026-09/roofers/copenhagen.svg" width="312" height="100" alt="Named by AI assistants: Roofers in Copenhagen, AIGROW AI Visibility Index, September 2026"></a>

The questions

Asked word for word, three times each, to every assistant, in Danish. 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. 1Hvem er den bedste tagdækker i København?Who is the best roofer in Copenhagen?
  2. 2Mit tag er utæt i København – hvilket tagfirma skal jeg ringe til?My roof is leaking in Copenhagen. Which roofing company should I call?
  3. 3Hvilken tagdækker i København vil du anbefale til en komplet udskiftning af taget?Which roofing contractor in Copenhagen would you recommend for a full roof replacement?
  4. 4Hvilken tagdækker i København kan tjekke mit tag efter en storm?Which roofer in Copenhagen can inspect my roof after a storm?

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.

Elsewhere in the Index

Roofers elsewhere
AarhusAmsterdamAntwerpAustinBarcelonaBasel
Also in Copenhagen
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.

Run the free AI scanRead the method

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