Plumbers in San Diego that AI assistants recommend

Bill Howe Plumbing, Heating & Air is named most, in 75% of 36 answers.

Plumbers in San Diego named by AI assistants, November 2026

  1. 1Bill Howe Plumbing, Heating & Air75%

    95%: 59 to 86%

    ChatGPT
    100%
    Claude
    25%
    Gemini
    100%
    Questions
    4 of 4
    Avg. position
    1.7

    Named in answers to

    • Who is the best plumber in San Diego?, from ChatGPT, Claude and Gemini
    • I have a leaking pipe at home in San Diego. Which plumbing company should I call?, from ChatGPT, Claude and Gemini
    • I need an emergency plumber in San Diego tonight. Who would you recommend?, from ChatGPT and Gemini
    • Which plumber in San Diego would you trust to replace a water heater?, from ChatGPT, Claude and Gemini

    Also written Bill Howe Plumbing, Bill Howe Plumbing, Heating & Air, Restoration & Flood Services

    Is this your business?
  2. 2Anderson Plumbing, Heating & Air67%

    95%: 50 to 80%

    ChatGPT
    100%
    Claude
    0%
    Gemini
    100%
    Questions
    4 of 4
    Avg. position
    1.4

    Named in answers to

    • Who is the best plumber in San Diego?, from ChatGPT and Gemini
    • I have a leaking pipe at home in San Diego. Which plumbing company should I call?, from ChatGPT and Gemini
    • I need an emergency plumber in San Diego tonight. Who would you recommend?, from ChatGPT and Gemini
    • Which plumber in San Diego would you trust to replace a water heater?, from ChatGPT and Gemini
    Is this your business?
  3. 3Scott's Plumbing28%

    95%: 16 to 44%

    ChatGPT
    0%
    Claude
    83%
    Gemini
    0%
    Questions
    4 of 4
    Avg. position
    2.5

    Named in answers to

    • Who is the best plumber in San Diego?, from Claude
    • I have a leaking pipe at home in San Diego. Which plumbing company should I call?, from Claude
    • I need an emergency plumber in San Diego tonight. Who would you recommend?, from Claude
    • Which plumber in San Diego would you trust to replace a water heater?, from Claude

    Also written Scott's Plumbing & Rooter, Scott's Plumbing & Leak Detection, Scott's Plumbing & Rooter Service, Scott's Plumbing Repair, Scott's Plumbing Repair Service

    Is this your business?
  4. 4Rooter Hero Plumbing25%

    95%: 14 to 41%

    ChatGPT
    0%
    Claude
    50%
    Gemini
    25%
    Questions
    3 of 4
    Avg. position
    2.2

    Named in answers to

    • I have a leaking pipe at home in San Diego. Which plumbing company should I call?, from Claude
    • I need an emergency plumber in San Diego tonight. Who would you recommend?, from Claude and Gemini
    • Which plumber in San Diego would you trust to replace a water heater?, from Claude

    Also written Rooter Hero Plumbing of San Diego

    Is this your business?
  5. 5Pic Plumbing Services17%

    95%: 8 to 32%

    ChatGPT
    0%
    Claude
    0%
    Gemini
    50%
    Questions
    3 of 4
    Avg. position
    3

    Named in answers to

    • Who is the best plumber in San Diego?, from Gemini
    • I have a leaking pipe at home in San Diego. Which plumbing company should I call?, from Gemini
    • Which plumber in San Diego would you trust to replace a water heater?, from Gemini
    Is this your business?
  6. 6Hamilton Plumbing, Heating & Air11%

    95%: 4 to 25%

    ChatGPT
    0%
    Claude
    33%
    Gemini
    0%
    Questions
    3 of 4
    Avg. position
    1.8

    Named in answers to

    • Who is the best plumber in San Diego?, from Claude
    • I need an emergency plumber in San Diego tonight. Who would you recommend?, from Claude
    • Which plumber in San Diego would you trust to replace a water heater?, from Claude

    Also written Hamilton Plumbing Heating Air, Hamilton Plumbing, Heating and Air

    Is this your business?
  7. 7Steele Plumbing8%

    95%: 3 to 22%

    ChatGPT
    0%
    Claude
    25%
    Gemini
    0%
    Questions
    2 of 4
    Avg. position
    2.7

    Named in answers to

    • I have a leaking pipe at home in San Diego. Which plumbing company should I call?, from Claude
    • I need an emergency plumber in San Diego tonight. Who would you recommend?, from Claude
    Is this your business?
  8. 8John Padilla Plumbing, Heating & Air8%

    95%: 3 to 22%

    ChatGPT
    0%
    Claude
    0%
    Gemini
    25%
    Questions
    3 of 4
    Avg. position
    3

    Named in answers to

    • Who is the best plumber in San Diego?, from Gemini
    • I have a leaking pipe at home in San Diego. Which plumbing company should I call?, from Gemini
    • Which plumber in San Diego would you trust to replace a water heater?, from Gemini
    Is this your business?
  9. 9Plumbing Pros8%

    95%: 3 to 22%

    ChatGPT
    0%
    Claude
    25%
    Gemini
    0%
    Questions
    2 of 4
    Avg. position
    3

    Named in answers to

    • Who is the best plumber in San Diego?, from Claude
    • I need an emergency plumber in San Diego tonight. Who would you recommend?, from Claude

    Also written Plumbing Pros San Diego

    Is this your business?
  10. 10ASI Hastings8%

    95%: 3 to 22%

    ChatGPT
    25%
    Claude
    0%
    Gemini
    0%
    Questions
    3 of 4
    Avg. position
    3.3

    Named in answers to

    • Who is the best plumber in San Diego?, from ChatGPT
    • I have a leaking pipe at home in San Diego. Which plumbing company should I call?, from ChatGPT
    • Which plumber in San Diego would you trust to replace a water heater?, from ChatGPT

    Also written ASI Hastings Plumbing, Heating & Air

    Is this your business?
  11. 11BPI Plumbing6%

    95%: 2 to 18%

    ChatGPT
    0%
    Claude
    17%
    Gemini
    0%
    Questions
    2 of 4
    Avg. position
    2.5

    Named in answers to

    • Who is the best plumber in San Diego?, from Claude
    • Which plumber in San Diego would you trust to replace a water heater?, from Claude
    Is this your business?
  12. 12ARS/Rescue Rooter6%

    95%: 2 to 18%

    ChatGPT
    17%
    Claude
    0%
    Gemini
    0%
    Questions
    2 of 4
    Avg. position
    3

    Named in answers to

    • Who is the best plumber in San Diego?, from ChatGPT
    • I need an emergency plumber in San Diego tonight. Who would you recommend?, from ChatGPT

    Also written ARS/Rescue Rooter San Diego

    Is this your business?
  13. 13Done Plumbing and Heating6%

    95%: 2 to 18%

    ChatGPT
    0%
    Claude
    17%
    Gemini
    0%
    Questions
    2 of 4
    Avg. position
    3

    Named in answers to

    • I have a leaking pipe at home in San Diego. Which plumbing company should I call?, from Claude
    • Which plumber in San Diego would you trust to replace a water heater?, from Claude
    Is this your business?
  14. 14Powers Plumbing6%

    95%: 2 to 18%

    ChatGPT
    17%
    Claude
    0%
    Gemini
    0%
    Questions
    1 of 4
    Avg. position
    3

    Named in answers to

    • Which plumber in San Diego would you trust to replace a water heater?, from ChatGPT
    Is this your business?
  15. 15Roto-Rooter Plumbing & Water Cleanup6%

    95%: 2 to 18%

    ChatGPT
    17%
    Claude
    0%
    Gemini
    0%
    Questions
    1 of 4
    Avg. position
    3

    Named in answers to

    • I need an emergency plumber in San Diego tonight. Who would you recommend?, from ChatGPT
    Is this your business?
  16. 16Yates Plumbing, Heating & Air Conditioning6%

    95%: 2 to 18%

    ChatGPT
    0%
    Claude
    17%
    Gemini
    0%
    Questions
    1 of 4
    Avg. position
    4.5

    Named in answers to

    • Which plumber in San Diego would you trust to replace a water heater?, from Claude

    Also written Yates Plumbing & Heating

    Is this your business?

Open a row to see each assistant's share of its 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. 31 more names came up in a single answer and are counted above but not listed.

Plumbers in San Diego: is this your field?

47different names in 36 answers, 31 of them only once. The assistants change their minds from one answer to the next.

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How the AIGROW Score is measured

No business can pay to appear in the Index, rise in it or be removed from it. How the Index stays neutral

AI Visibility Index · November 2026

Asked about plumbers in San Diego, ChatGPT, Claude and Gemini named Bill Howe Plumbing, Heating & Air most often, in 75% of answers (its AI Recommendation Rate). Across 36 answers they named 47 different businesses, 31 of them only once. Each of four buyer questions was asked three times, in English, in November 2026.

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.

Names are printed as the assistants wrote them. We have not checked that any of them is good, open, or real.

Plumbers · San Diego

75% of answers named Bill Howe Plumbing, Heating & Air

Answers
36
Businesses named
47
Named only once
31
Named by 2+ assistants
3 of 16
Named again on a rerun
52%

Edition November 2026. Download the data

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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
1Bill Howe Plumbing, Heating & Air100%Scott's Plumbing83%Bill Howe Plumbing, Heating & Air100%
2Anderson Plumbing, Heating & Air100%Rooter Hero Plumbing50%Anderson Plumbing, Heating & Air100%
3ASI Hastings25%Hamilton Plumbing, Heating & Air33%Pic Plumbing Services50%
4ARS/Rescue Rooter17%Bill Howe Plumbing, Heating & Air25%Rooter Hero Plumbing25%
5Powers Plumbing17%Steele Plumbing25%John Padilla Plumbing, Heating & Air25%

Questions about plumbers in San Diego

ChatGPT, Claude and Gemini named Bill Howe Plumbing, Heating & Air most often, in 75% of 36 answers, then Anderson Plumbing, Heating & Air (67%) and Scott's Plumbing (28%). The names come from what the assistants answered to four buyer questions in November 2026; we have not checked that any of them is good, open or real.

Not always. ChatGPT named Bill Howe Plumbing, Heating & Air most often (100% of its answers), Claude Scott's Plumbing (83%) and Gemini Bill Howe Plumbing, Heating & Air (100%). 3 of the 16 listed businesses were named by two or more of them.

Each question was asked three times. Of the names an assistant gave for a question, 52% came back in two or more of those runs; the rest came up once. The 95% range beside each rate in the ranking shows how far it could move by chance.

Run the free checker: it asks ChatGPT, Claude, Gemini and Grok two of the Index questions for plumbers, with the category and the place already filled in, and shows every answer word for word. About 30 seconds, no sign-up. The page on how AI assistants recommend plumbers shows what an owner can work on. Nothing can guarantee that an assistant names you.

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.

Named by AI assistants: Plumbers in San Diego, AIGROW AI Visibility Index, November 2026
<a href="https://aigrow.gg/index/plumbers/san-diego"><img src="https://aigrow.gg/badges/index/2026-11/plumbers/san-diego.svg" width="312" height="100" alt="Named by AI assistants: Plumbers in San Diego, AIGROW AI Visibility Index, November 2026"></a>

The questions

Asked word for word, three times each, to every assistant. 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 San Diego?
  2. 2I have a leaking pipe at home in San Diego. Which plumbing company should I call?
  3. 3I need an emergency plumber in San Diego tonight. Who would you recommend?
  4. 4Which plumber in San Diego 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 the United States. From the AI Source Map: 11 answers.

consumeraffairs.com
Read in 100% of the answers
expertise.com
Read in 91% of the answers
reddit.com
Read in 91% of the answers

AI Visibility Index

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