NamedTest

Which plumbers does AI name in San Diego, CA?

Bill Howe Plumbing was the plumber AI named most often in San Diego, CA: in 10 of 20 answers in October 2026.

Across 20 answers to 10 customer questions, Perplexity and Gemini (model knowledge) named 28 different plumbers. The 6 named most often held 51% of all mentions.

Perplexity named Almco Plumbing most often (4 of 10 answers) and Gemini named Anderson Plumbing, Heating & Air most often (9 of 10 answers).

Answers collected October 16, 2026. AI answers change from day to day.

The plumbers AI named most

BusinessAnswers naming it
Bill Howe PlumbingNamed by Perplexity and Gemini10 of 20
Anderson Plumbing, Heating & AirNamed by Gemini9 of 20
Almco PlumbingNamed by Perplexity4 of 20
ASAP Drain Guys & PlumbingNamed by Gemini4 of 20
Rooter Hero PlumbingNamed by Gemini4 of 20
1-800-Plumber + Air of San DiegoNamed by Gemini3 of 20
ASI Plumbing, Heating & AirNamed by Perplexity3 of 20
Precision PlumbingNamed by Gemini3 of 20
Roto-RooterNamed by Perplexity3 of 20
Pic Plumbing ServicesNamed by Gemini2 of 20

Who each AI tool named

Perplexity

10 of its 10 answers named at least one business.

  1. Almco Plumbing (4)
  2. ASI Plumbing, Heating & Air (3)
  3. Roto-Rooter (3)
  4. Bill Howe Plumbing (2)
  5. Pipe Dream Plumbing (2)
  6. Solid Plumbing & Drains (2)
  7. A-1 Plumbing Sewer & Drain Experts (1)
  8. Alert Plumber (1)
  9. All Star Plumbing & Restoration (1)
  10. Cali's Choice (1)

Gemini (model knowledge)

10 of its 10 answers named at least one business.

  1. Anderson Plumbing, Heating & Air (9)
  2. Bill Howe Plumbing (8)
  3. ASAP Drain Guys & Plumbing (4)
  4. Rooter Hero Plumbing (4)
  5. 1-800-Plumber + Air of San Diego (3)
  6. Precision Plumbing (3)
  7. Pic Plumbing Services (2)
  8. Atlas Plumbing (1)
  9. Perry Plumbing Heating & Air (1)
  10. Plumbing Plus (1)

What AI named for each question

The businesses each AI tool named in its answer to each question, in the order the answer named them.

  1. I need an emergency plumber in San Diego, CA right now. Who should I call?

    Perplexity

    1. Bill Howe Plumbing
    2. Roto-Rooter

    Gemini

    1. Anderson Plumbing, Heating & Air
    2. Bill Howe Plumbing
    3. Rooter Hero Plumbing
    4. Pic Plumbing Services

  2. How much does drain cleaning cost in San Diego, CA, and which plumbers charge fair prices?

    Perplexity

    1. Almco Plumbing
    2. Pipe Dream Plumbing
    3. Plumbing Pros
    4. Alert Plumber

    Gemini

    1. 1-800-Plumber + Air of San Diego
    2. Pic Plumbing Services
    3. Anderson Plumbing, Heating & Air
    4. Bill Howe Plumbing
    5. Precision Plumbing

  3. Who is the most trusted plumber in San Diego, CA?

    Perplexity

    1. HomePro Plumbing and Drains
    2. A-1 Plumbing Sewer & Drain Experts

    Gemini

    1. Anderson Plumbing, Heating & Air
    2. Bill Howe Plumbing
    3. ASAP Drain Guys & Plumbing
    4. Precision Plumbing

  4. Which plumbing company in San Diego, CA is best for water heater repair?

    Perplexity

    1. ASI Plumbing, Heating & Air
    2. Plumbing Plus

    Gemini

    1. Anderson Plumbing, Heating & Air
    2. ASAP Drain Guys & Plumbing
    3. Bill Howe Plumbing
    4. 1-800-Plumber + Air of San Diego
    5. Rooter Hero Plumbing

  5. My basement is flooding in San Diego, CA. Which plumber can come today?

    Perplexity

    1. Roto-Rooter
    2. Cali's Choice
    3. SERVPRO of San Diego East

    Gemini

    1. SERVPRO of San Diego East
    2. ServiceMaster Restore
    3. Bill Howe Plumbing
    4. Anderson Plumbing, Heating & Air

  6. Who is the most affordable plumber near San Diego, CA?

    Perplexity

    1. Almco Plumbing
    2. Sandiego Plumbing Co

    Gemini

    1. 1-800-Plumber + Air of San Diego
    2. Anderson Plumbing, Heating & Air
    3. Rooter Solutions

  7. Which plumbers in San Diego, CA have the best reviews?

    Perplexity

    1. Bill Howe Plumbing
    2. Collins Pacific Plumbing
    3. Emory Plumbing
    4. Almco Plumbing

    Gemini

    1. ASAP Drain Guys & Plumbing
    2. Anderson Plumbing, Heating & Air
    3. Bill Howe Plumbing
    4. Precision Plumbing
    5. Perry Plumbing Heating & Air

  8. I need water heater installation in San Diego, CA. Which local plumber do you recommend?

    Perplexity

    1. Solid Plumbing & Drains
    2. ASI Plumbing, Heating & Air

    Gemini

    1. Anderson Plumbing, Heating & Air
    2. Bill Howe Plumbing
    3. Plumbing Plus
    4. Rooter Hero Plumbing

  9. Is there a 24 hour plumber in San Diego, CA that answers the phone at night?

    Perplexity

    1. ASI Plumbing, Heating & Air
    2. Roto-Rooter
    3. All Star Plumbing & Restoration

    Gemini

    1. ASAP Drain Guys & Plumbing
    2. Anderson Plumbing, Heating & Air
    3. Rooter Hero Plumbing

  10. What is a reasonable price for sewer line repair in San Diego, CA, and who should I get quotes from?

    Perplexity

    1. Pipe Dream Plumbing
    2. Almco Plumbing
    3. Solid Plumbing & Drains

    Gemini

    1. Bill Howe Plumbing
    2. Rooter-Man
    3. Atlas Plumbing

Sources AI cited

10 of the 20 answers cited sources. The sites cited most, by the number of answers citing them:

  1. consumeraffairs.com (6)
  2. thumbtack.com (5)
  3. asiheatingandair.com (4)
  4. rooterhero.com (4)
  5. sandiegoplumbingco.com (4)
  6. bbb.org (3)
  7. mrrooter.com (3)
  8. rotorooter.com (3)
  9. sandiegoplumbing.com (3)
  10. alertplumber.com (2)

Gemini (model knowledge) answers from what it learned in training, without a web search, so it cites no sources.

What the most-named plumbers have in common

1 of the 6 were named by both Perplexity and Gemini. The rest were named by one tool only, which is common: the tools search and remember differently.

3 of the 6 had their own website among the sources the answers cited, and AI gave a website for 5 of them.

By the kind of question: 4 of them came up for urgent requests, 4 for questions about price, 4 for questions about trust and reviews, and 5 for questions about a specific service.

How we measured this

We asked 10 questions a customer might ask about plumbers in San Diego, CA, once on each AI tool, through each tool's official API. For example:

  • I need an emergency plumber in San Diego, CA right now. Who should I call?
  • Who is the most trusted plumber in San Diego, CA?
  • Which plumbing company in San Diego, CA is best for water heater repair?

Perplexity searches the web and shows its sources. Gemini (model knowledge) answers without a web search, from what the model learned in training, so its picks can be out of date. A language model read each answer and listed the businesses it named, and a business counts once per answer. These results describe what AI said on these dates. They are not a rating of any business's work.

Data as of October 16, 2026.

Corrections

If a business name was misread, or a business is listed that has closed, email hello@namedtest.com. We check it against the stored answers and correct the page.

Does AI name your business?

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Read the guide: How to get AI to recommend your plumbing business

Questions about this page

Which plumbers does AI name most in San Diego, CA?

Bill Howe Plumbing was the plumber AI named most often in San Diego, CA: in 10 of 20 answers in October 2026.

Which AI tools were asked, and when?

Perplexity and Gemini, 10 customer questions each, answered between October 16, 2026 and October 16, 2026. Gemini (model knowledge) answers from what the model learned in training, without a web search.

How can a plumber get named by AI more often?

Make the business easy for AI to read and to trust: let AI crawlers into your website, keep your name, address and phone the same everywhere, answer common customer questions on your site, and earn reviews on the sites AI cites. The free check shows whether AI names your business today.