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AI Visibility Index · September 2026

Roofers in Porto that AI assistants recommend

We asked ChatGPT, Claude and Gemini the four questions a buyer asks when looking for roofers in Porto, three times each, in Portuguese, 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 · Porto
22%of answers named Telhados e Impermeabilizações Porto
Answers
36
Businesses named
25
Named only once
12
Named by 2+ assistants
1 of 13
Named again on a rerun
19%

Edition September 2026. Download the data

Asked for roofers in Porto, ChatGPT, Claude and Gemini most often named Telhados e Impermeabilizações Porto (22% of answers), Porto Telhados (14%) and Coberturas e Telhados (14%). Across 36 answers they named 25 different businesses, 12 of them only once. Each of four buyer questions was asked three times, in Portuguese, 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 Porto named by AI assistants, September 2026
#BusinessAI Recommendation RateChatGPTClaudeGeminiQuestionsAvg. position
1Telhados e Impermeabilizações PortoAlso written Telhados e Impermeabilizações - PortoIs this your business?22%95%: 12 to 38%0%0%67%4 of 41.1
2Porto TelhadosAlso written Telhados PortoIs this your business?14%95%: 6 to 29%8%0%33%3 of 41.8
3Coberturas e TelhadosAlso written Coberturas e Telhados - Soluções Integradas, Coberturas e Telhados PortoIs this your business?14%95%: 6 to 29%0%0%42%3 of 42.6
4ImperPortoIs this your business?11%95%: 4 to 25%0%0%33%2 of 42.5
5Reparações PortoAlso written Reparações Porto - Telhados e CalhasIs this your business?11%95%: 4 to 25%0%0%33%3 of 42.5
6Coberturas do NorteIs this your business?11%95%: 4 to 25%0%0%33%2 of 43
7Reparações Porto 24hAlso written Reparações 24 PortoIs this your business?8%95%: 3 to 22%0%0%25%2 of 42.3
8ReparaTelhados PortoIs this your business?6%95%: 2 to 18%0%0%17%2 of 42.5
9Impermeabilizações NorteIs this your business?6%95%: 2 to 18%0%0%17%2 of 43
10Impermeabilizações PortoIs this your business?6%95%: 2 to 18%0%0%17%2 of 43.5
11TecniTelhadosIs this your business?6%95%: 2 to 18%0%0%17%2 of 44
12FixeReparaçõesAlso written FixeReparações PortoIs this your business?6%95%: 2 to 18%0%0%17%2 of 44.5
13Soluções de TelhadosAlso written Soluções de Telhados Porto, Soluções Telhados PortoIs this your business?6%95%: 2 to 18%0%0%17%2 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. 12 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
1Porto Telhados8%Named no businessTelhados e Impermeabilizações Porto67%
2No other name twiceCoberturas e Telhados42%
3Porto Telhados33%
4ImperPorto33%
5Reparações Porto33%

ChatGPT named no business in 9 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.

Correct or remove a listing
Named by AI assistants: Roofers in Porto, AIGROW AI Visibility Index, September 2026
<a href="https://aigrow.gg/index/roofers/porto"><img src="https://aigrow.gg/badges/index/2026-09/roofers/porto.svg" width="312" height="100" alt="Named by AI assistants: Roofers in Porto, AIGROW AI Visibility Index, September 2026"></a>

The questions

Asked word for word, three times each, to every assistant, in Portuguese. 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. 1Quem é o melhor telhador no Porto?Who is the best roofer in Porto?
  2. 2O meu telhado está a meter água no Porto. A que empresa de telhados devo ligar?My roof is leaking in Porto. Which roofing company should I call?
  3. 3Que telhador no Porto recomendarias para substituir o telhado todo?Which roofing contractor in Porto would you recommend for a full roof replacement?
  4. 4Que telhador no Porto pode inspecionar o meu telhado depois de uma tempestade?Which roofer in Porto 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
LisbonBelo HorizonteRio de JaneiroSão PauloAarhusAmsterdam
Also in Porto
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