Plumbers in Los Angeles that AI assistants recommend

Name: AI assistant recommendations: Plumbers in Los Angeles, November 2026
Creator: AIGROW
License: https://creativecommons.org/licenses/by/4.0/

Rooter Hero Plumbing is named most, in 78% of 36 answers.

The ranking

AI Recommendation Rate

1Rooter Hero Plumbing78%
95%: 62 to 88%
ChatGPT
33%
Claude
100%
Gemini
100%
Questions
4 of 4
Avg. position
1.3
Named in answers to
- Who is the best plumber in Los Angeles?, from Claude and Gemini
- I have a leaking pipe at home in Los Angeles. Which plumbing company should I call?, from Claude and Gemini
- I need an emergency plumber in Los Angeles tonight. Who would you recommend?, from ChatGPT, Claude and Gemini
- Which plumber in Los Angeles would you trust to replace a water heater?, from ChatGPT, Claude and Gemini
Also written Rooter Hero Plumbing & Air
Is this your business?
2Mike Diamond Services50%
95%: 35 to 66%
ChatGPT
33%
Claude
100%
Gemini
17%
Questions
4 of 4
Avg. position
2.4
Named in answers to
- Who is the best plumber in Los Angeles?, from ChatGPT, Claude and Gemini
- I have a leaking pipe at home in Los Angeles. Which plumbing company should I call?, from ChatGPT and Claude
- I need an emergency plumber in Los Angeles tonight. Who would you recommend?, from ChatGPT and Claude
- Which plumber in Los Angeles would you trust to replace a water heater?, from Claude
Is this your business?
3Mr. Rooter Plumbing of Los Angeles28%
95%: 16 to 44%
ChatGPT
8%
Claude
0%
Gemini
75%
Questions
3 of 4
Avg. position
2.7
Named in answers to
- I have a leaking pipe at home in Los Angeles. Which plumbing company should I call?, from Gemini
- I need an emergency plumber in Los Angeles tonight. Who would you recommend?, from ChatGPT and Gemini
- Which plumber in Los Angeles would you trust to replace a water heater?, from Gemini
Is this your business?
4Benjamin Franklin Plumbing25%
95%: 14 to 41%
ChatGPT
0%
Claude
8%
Gemini
67%
Questions
3 of 4
Avg. position
2.2
Named in answers to
- I have a leaking pipe at home in Los Angeles. Which plumbing company should I call?, from Gemini
- I need an emergency plumber in Los Angeles tonight. Who would you recommend?, from Gemini
- Which plumber in Los Angeles would you trust to replace a water heater?, from Claude and Gemini
Also written Benjamin Franklin Plumbing Los Angeles, Benjamin Franklin Plumbing of Los Angeles
Is this your business?
5Monkey Wrench Plumbing, Heating & Air22%
95%: 12 to 38%
ChatGPT
33%
Claude
0%
Gemini
33%
Questions
2 of 4
Avg. position
2
Named in answers to
- Who is the best plumber in Los Angeles?, from ChatGPT and Gemini
- Which plumber in Los Angeles would you trust to replace a water heater?, from ChatGPT and Gemini
Also written Monkey Wrench Plumbing, Heating, Air & Electric
Is this your business?
6ASAP Drain & Plumbing22%
95%: 12 to 38%
ChatGPT
0%
Claude
67%
Gemini
0%
Questions
4 of 4
Avg. position
3.8
Named in answers to
- Who is the best plumber in Los Angeles?, from Claude
- I have a leaking pipe at home in Los Angeles. Which plumbing company should I call?, from Claude
- I need an emergency plumber in Los Angeles tonight. Who would you recommend?, from Claude
- Which plumber in Los Angeles would you trust to replace a water heater?, from Claude
Also written ASAP Plumbing, ASAP Drain Cleaning & Plumbing, ASAP Drain Services, ASAP Drain Sewer & Plumbing, ASAP Plumbing & Rooter
Is this your business?
7Roto-Rooter Plumbing & Water Cleanup19%
95%: 10 to 35%
ChatGPT
58%
Claude
0%
Gemini
0%
Questions
3 of 4
Avg. position
1.9
Named in answers to
- I have a leaking pipe at home in Los Angeles. Which plumbing company should I call?, from ChatGPT
- I need an emergency plumber in Los Angeles tonight. Who would you recommend?, from ChatGPT
- Which plumber in Los Angeles would you trust to replace a water heater?, from ChatGPT
Also written Roto-Rooter Plumbing & Water Cleanup Los Angeles
Is this your business?
8Pacific Plumbing & Rooter17%
95%: 8 to 32%
ChatGPT
0%
Claude
50%
Gemini
0%
Questions
3 of 4
Avg. position
4.3
Named in answers to
- Who is the best plumber in Los Angeles?, from Claude
- I have a leaking pipe at home in Los Angeles. Which plumbing company should I call?, from Claude
- I need an emergency plumber in Los Angeles tonight. Who would you recommend?, from Claude
Also written Pacific Plumbing, Pacific Plumbing Co.
Is this your business?
9Red Lilly Plumbing8%
95%: 3 to 22%
ChatGPT
25%
Claude
0%
Gemini
0%
Questions
1 of 4
Avg. position
2
Named in answers to
- Who is the best plumber in Los Angeles?, from ChatGPT
Is this your business?
10The Plumber Guys8%
95%: 3 to 22%
ChatGPT
25%
Claude
0%
Gemini
0%
Questions
2 of 4
Avg. position
2
Named in answers to
- I have a leaking pipe at home in Los Angeles. Which plumbing company should I call?, from ChatGPT
- Which plumber in Los Angeles would you trust to replace a water heater?, from ChatGPT
Also written Plumbing Guys, The Plumber Guy
Is this your business?
11Pro Quality Plumbing & Rooter8%
95%: 3 to 22%
ChatGPT
25%
Claude
0%
Gemini
0%
Questions
2 of 4
Avg. position
2.7
Named in answers to
- I have a leaking pipe at home in Los Angeles. Which plumbing company should I call?, from ChatGPT
- Which plumber in Los Angeles would you trust to replace a water heater?, from ChatGPT
Is this your business?
12ARS/Rescue Rooter8%
95%: 3 to 22%
ChatGPT
0%
Claude
25%
Gemini
0%
Questions
2 of 4
Avg. position
3.7
Named in answers to
- Who is the best plumber in Los Angeles?, from Claude
- I have a leaking pipe at home in Los Angeles. Which plumbing company should I call?, from Claude
Also written ARS/Rescue Rooter Los Angeles
Is this your business?
13The Water Heater Company6%
95%: 2 to 18%
ChatGPT
17%
Claude
0%
Gemini
0%
Questions
1 of 4
Avg. position
1
Named in answers to
- Which plumber in Los Angeles would you trust to replace a water heater?, from ChatGPT
Is this your business?
14Gold Star Plumbing & Restoration6%
95%: 2 to 18%
ChatGPT
0%
Claude
17%
Gemini
0%
Questions
1 of 4
Avg. position
1.5
Named in answers to
- Which plumber in Los Angeles would you trust to replace a water heater?, from Claude
Is this your business?
15Steve's Plumbing6%
95%: 2 to 18%
ChatGPT
0%
Claude
17%
Gemini
0%
Questions
2 of 4
Avg. position
3
Named in answers to
- Who is the best plumber in Los Angeles?, from Claude
- Which plumber in Los Angeles would you trust to replace a water heater?, from Claude
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. 23 more names came up in a single answer and are counted above but not listed.

Plumbers in Los Angeles: is this your field?

38different names in 36 answers, 23 of them only once. The assistants change their minds from one answer to the next.

Check whether AI names you

Is this your business?

Named on this list? Get the badge for your website and a free scan of who AI assistants recommend to your customers. Use the badge only for a business named here. It records this edition, without verifying ownership or promising future mentions.

AIGROW ScoreIs this your business? See your AIGROW ScoreHow 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 Los Angeles, ChatGPT, Claude and Gemini named Rooter Hero Plumbing most often, in 78% of answers (its AI Recommendation Rate), then Mike Diamond Services (50%). Across 36 answers they named 38 different businesses, 23 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.

78% of answers named Rooter Hero Plumbing

Answers: 36
Businesses named: 38
Named only once: 23
Named by 2+ assistants: 5 of 15
Named again on a rerun: 57%

Edition November 2026. Download the data

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.

#	ChatGPT	Claude	Gemini
1	Roto-Rooter Plumbing & Water Cleanup58%	Rooter Hero Plumbing100%	Rooter Hero Plumbing100%
2	Rooter Hero Plumbing33%	Mike Diamond Services100%	Mr. Rooter Plumbing of Los Angeles75%
3	Mike Diamond Services33%	ASAP Drain & Plumbing67%	Benjamin Franklin Plumbing67%
4	Monkey Wrench Plumbing, Heating & Air33%	Pacific Plumbing & Rooter50%	Monkey Wrench Plumbing, Heating & Air33%
5	Red Lilly Plumbing25%	ARS/Rescue Rooter25%	Mike Diamond Services17%

Questions about plumbers in Los Angeles

How AI assistants recommend plumbers

ChatGPT, Claude and Gemini named Rooter Hero Plumbing most often, in 78% of 36 answers, then Mike Diamond Services (50%) and Mr. Rooter Plumbing of Los Angeles (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 Roto-Rooter Plumbing & Water Cleanup most often (58% of its answers), Claude Rooter Hero Plumbing (100%) and Gemini Rooter Hero Plumbing (100%). 5 of the 15 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, 57% 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.

Correct or remove a listing

<a href="https://aigrow.gg/index/plumbers/los-angeles"><img src="https://aigrow.gg/badges/index/2026-11/plumbers/los-angeles.svg" width="312" height="100" alt="Named by AI assistants: Plumbers in Los Angeles, 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.

1Who is the best plumber in Los Angeles?
2I have a leaking pipe at home in Los Angeles. Which plumbing company should I call?
3I need an emergency plumber in Los Angeles tonight. Who would you recommend?
4Which plumber in Los Angeles 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: 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.

See every site for this category