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AI Visibility Index · September 2026

Plumbers in Chicago that AI assistants recommend

We asked ChatGPT, Claude, Gemini and Grok the four questions a buyer asks when looking for plumbers in Chicago, three times each, in English, and counted who they named. These are the businesses named in two or more of the 48 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.

Plumbers · Chicago
40%of answers named Ravinia Plumbing & Heating Co.
Answers
48
Businesses named
39
Named only once
20
Named by 2+ assistants
11 of 19
Named again on a rerun
42%

Edition September 2026. Download the data

Asked for plumbers in Chicago, ChatGPT, Claude, Gemini and Grok most often named Ravinia Plumbing & Heating Co. (40% of answers), Rescue Plumbing, Inc. (25%) and Apex Plumbing & Sewer (25%). Across 48 answers they named 39 different businesses, 20 of them only once. Each of four buyer questions was asked three times, in English, in September 2026.

The ranking

Share is the fraction of the 48 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.

Plumbers in Chicago named by AI assistants, September 2026
#BusinessShareChatGPTClaudeGeminiGrokQuestionsAvg. position
1Ravinia Plumbing & Heating Co.Also written Ravinia Plumbing & Heating40%95%: 27 to 54%83%75%0%0%4 of 41.7
2Rescue Plumbing, Inc.Also written Rescue Plumbing25%95%: 15 to 39%0%0%100%0%4 of 41.8
3Apex Plumbing & SewerAlso written Apex Plumbing & Sewer, Inc.25%95%: 15 to 39%0%0%100%0%4 of 42.3
4J. Blanton PlumbingAlso written J. Blanton Plumbing, Heating & Cooling25%95%: 15 to 39%0%0%100%0%4 of 43.5
5Chicago Plumbing Experts25%95%: 15 to 39%0%17%83%0%4 of 43.8
6ABC Plumbing, Sewer & DrainAlso written ABC Plumbing, Sewer, Drain & Water Heaters, ABC Plumbing, Sewer, Heating, Cooling & Electric, ABC Plumbing, Sewer, Heating, Cooling and Electric, ABC Plumbing, Sewer & Drain, Inc., ABC Plumbing, Sewer, Drain, ABC Plumbing, Sewer, Drain & Heating23%95%: 13 to 37%58%33%0%0%4 of 41.5
7Goode Plumbing15%95%: 7 to 27%17%42%0%0%3 of 42.4
8Four Suns Plumbing10%95%: 5 to 22%17%25%0%0%3 of 42.4
9Windy City RooterAlso written Windy City Rooter & Plumbing10%95%: 5 to 22%8%33%0%0%3 of 42.8
10Four Seasons Heating, Air Conditioning, Plumbing, Electric8%95%: 3 to 20%0%0%33%0%2 of 41
11ABC 1 PlumbingAlso written ABC 1 Rooter & Plumbing, ABC 1 Rodent Exterminator & Plumbing8%95%: 3 to 20%17%17%0%0%2 of 42
12The Plumbing Department Inc.Also written The Plumbing Department, Inc.8%95%: 3 to 20%8%25%0%0%2 of 42.5
13Windy City Plumbing & Sewer, Inc.Also written Windy City Plumbing & Sewer, Windy City Plumbing and Sewer, Inc.8%95%: 3 to 20%25%8%0%0%2 of 42.8
14Precision Plumbing Chicago6%95%: 2 to 17%0%0%25%0%3 of 44
15Deljo Heating & Cooling6%95%: 2 to 17%0%0%25%0%2 of 45
16Rocket PlumbingAlso written Rocket Plumbing Chicago6%95%: 2 to 17%0%0%25%0%1 of 45
17A-1 Plumbing & Sewer ServiceAlso written A-1 Plumbing & Sewer Service, Inc., A-1 Sewer & Drain Plumbing4%95%: 1 to 14%8%8%0%0%1 of 43
18American WeathermakersAlso written American Weathermakers Inc.4%95%: 1 to 14%0%17%0%0%2 of 43.5
19Mid-City Plumbing & HeatingAlso written MidCity Plumbing4%95%: 1 to 14%8%8%0%0%2 of 43.5

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. 20 more names came up in a single answer and are counted above but not listed.

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.

#ChatGPTClaudeGeminiGrok
1Ravinia Plumbing & Heating Co.83%Ravinia Plumbing & Heating Co.75%Rescue Plumbing, Inc.100%Named no business
2ABC Plumbing, Sewer & Drain58%Goode Plumbing42%Apex Plumbing & Sewer100%
3Windy City Plumbing & Sewer, Inc.25%ABC Plumbing, Sewer & Drain33%J. Blanton Plumbing100%
4Goode Plumbing17%Windy City Rooter33%Chicago Plumbing Experts83%
5Four Suns Plumbing17%Four Suns Plumbing25%Four Seasons Heating, Air Conditioning, Plumbing, Electric33%

Grok 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: Plumbers in Chicago, AIGROW AI Visibility Index, September 2026
<a href="https://aigrow.gg/index/plumbers/chicago"><img src="https://aigrow.gg/badges/index/2026-09/plumbers/chicago.svg" width="312" height="100" alt="Named by AI assistants: Plumbers in Chicago, AIGROW AI Visibility Index, September 2026"></a>

The questions

Asked word for word, three times each, to every assistant through its API. 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. 1Who is the best plumber in Chicago?
  2. 2I have a leaking pipe at home in Chicago. Which plumbing company should I call?
  3. 3I need an emergency plumber in Chicago tonight. Who would you recommend?
  4. 4Which plumber in Chicago would you trust to replace a water heater?

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
48 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

Plumbers elsewhere
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Also in Chicago
DentistsLawyersAccountantsGymsReal estate agenciesRestaurants

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Edition September 2026 · data under CC BY 4.0