San Francisco, CAAugust 15, 2026

"Who's the best plumber in San Francisco?"

Who AI recommends for plumbers in San Francisco

Measured August 15, 2026. Word for word.

No sponsored results. No business can pay to be on this list. We record what the AI engines actually say, word for word.

13NAMEDof20LISTED

Sealedplumber/san-francisco-ca

The standings

namednot namedno answer

Google AI: one row covering 2 surfaces, AI Overviews and AI Mode. Gemini: live, no receipt kept.

Ace Plumbing & Rooter, Inc.

Named in 11 of 11 measured answers

11/11

ChatGPTGoogle AIGeminiPerplexity

From the answer, verbatim:

**My first call would be: Ace Plumbing & Rooter — (415) 824-6444.

SealedAugust 15, 202677349126-9e9

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Advanced Plumbing & Drain

Named in 5 of 11 measured answers

5/11

ChatGPTGoogle AIGeminiPerplexity

From the answer, verbatim:

If you want a **reliable starting shortlist**, I’d call **Ace Plumbing & Rooter**, **Advanced Plumbing & Drain**, or **Magic Plumbing & Heating** first.

SealedAugust 15, 2026336a06bd-a32

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Discount Plumbing San Francisco

Named in 5 of 11 measured answers

5/11

ChatGPTGoogle AIGeminiPerplexity

From the answer, verbatim:

They’re a strong SF-specific choice: licensed/bonded/insured per their site, handle residential/commercial/emergency plumbing, sewer/drain, water heaters, and serve San Francisco 7 days a week.

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Heise's Plumbing

Named in 5 of 11 measured answers

5/11

ChatGPTGoogle AIGeminiPerplexity

From the answer, verbatim:

- **Heise’s Plumbing** — San Francisco-based, office listed at 260 Ocean Ave; call **(415) 333-0704**.

SealedAugust 15, 2026336a06bd-a32

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Magic Plumbing Heating & Cooling

Named in 5 of 11 measured answers

5/11

ChatGPTGoogle AIGeminiPerplexity

From the answer, verbatim:

If you want a **reliable starting shortlist**, I’d call **Ace Plumbing & Rooter**, **Advanced Plumbing & Drain**, or **Magic Plumbing & Heating** first.

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Genteel Plumbers

Named in 4 of 11 measured answers

4/11

ChatGPTGoogle AIGeminiPerplexity

From the answer, verbatim:

**Genteel Plumbers — (415) 465-5853**

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Arch Plumbing Inc.

Named in 2 of 11 measured answers

2/11

ChatGPTGoogle AIGeminiPerplexity

From the answer, verbatim:

Arch Plumbing Inc.

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Cabrillo Plumbing, Heating & Air

Named in 2 of 11 measured answers

2/11

ChatGPTGoogle AIGeminiPerplexity

From the answer, verbatim:

- **Cabrillo Plumbing, Heating and Cooling** — good if you want a long-established company; ConsumerAffairs lists it as founded in 1961 and scores it 9.

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Fast Response Plumbing & Rooter

Named in 2 of 11 measured answers

2/11

ChatGPTGoogle AIGeminiPerplexity

From the answer, verbatim:

**Fast Response Plumbing & Rooter — (415) 596-6115**

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24/7 Rooter & Plumbing

Named in 1 of 11 measured answers

1/11

ChatGPTGoogle AIGeminiPerplexity

From the answer, verbatim:

24/7 Rooter & Plumbing 4.

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Discount Plumbing Rooter Services

Named in 1 of 11 measured answers

1/11

ChatGPTGoogle AIGeminiPerplexity

From the answer, verbatim:

Discount Plumbing Rooter Services 4.

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Lutz Plumbing Inc

Named in 1 of 11 measured answers

1/11

ChatGPTGoogle AIGeminiPerplexity

From the answer, verbatim:

- **Lutz Plumbing** — a solid local option noted by Expertise for broader plumbing work, with license #503971 and strong Google/Angi review signals.

SealedAugust 15, 2026faa8fa6e-f1b

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Mr. Rooter Plumbing of San Francisco

Named in 1 of 11 measured answers

1/11

ChatGPTGoogle AIGeminiPerplexity

From the answer, verbatim:

- **Roto-Rooter** and **Mr. Rooter Plumbing**: national brands with San Francisco pages, useful if you want a larger-service-network option[4][17].

SealedAugust 15, 202607eb904b-e52

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The roll call · August 15, 2026

The night's roll call

Every business measured this week. The ones the answers named are lit.

13namedof20listed

Ace Plumbing & Rooter, Inc.
O'Grady Plumbing
Advanced Plumbing & Drain
Discount Plumbing San Francisco
Chosen Rooter & Plumbing Inc.
Heise's Plumbing
Magic Plumbing Heating & Cooling
Precision Flow Plumbing
Genteel Plumbers
Handy Plumbing Man, LLC
Arch Plumbing Inc.
Cabrillo Plumbing, Heating & Air
Flow Masters Plumbing, Drain and Water Heater
Fast Response Plumbing & Rooter
24/7 Rooter & Plumbing
Hydro Plumbing & Rooter
Discount Plumbing Rooter Services
Lutz Plumbing Inc
Isackson Plumbing
Mr. Rooter Plumbing of San Francisco

Being unnamed today is an observation with a date on it, not a judgment. Any of these businesses can run a free scan.

O'Grady Plumbing · Chosen Rooter & Plumbing Inc. · Precision Flow Plumbing — and 4 moreas listed on Google, fetched August 15, 2026

This page was measured August 15, 2026, 31 days ago. Answers may have moved since. A fresh scan shows today.

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This record is 1 measured week(s) old. History accumulates weekly. Nothing here is padded to look busy.

The record, week by week

This history is captured live each week. It cannot be backfilled, by us or anyone.

August 15, 2026 — 13 businesses named · 33 names could not be verified

The questions this week (General question pack — our standard 3 questions)

Real questions, asked the way customers ask, with no business name inside any question. Every named business below appeared in an actual AI answer, saved and dated.

"Who's the best plumber in San Francisco, CA?"

"I need a plumber in San Francisco, CA — who should I call?"

"Which plumber would you recommend near San Francisco, CA?"

How this page is made

How this page is made: we ask 3 real customer questions across 5 AI engines: ChatGPT, Gemini, Perplexity, Claude, and Google AI. Google AI is measured on 2 surfaces, AI Overviews and AI Mode, so 5 engines make 6 measured surfaces. A business is NAMED only when its name appears in the machine's actual answer text. Hinted at or linked does not count. Answers are saved word for word, dated, and content-hashed. No business name is ever inside a question, so no result can be nudged. Paying us never changes what the receipts say. This page is a set of dated observations: AI answers vary between runs.

August 15, 20265 of 5 surfaces measuredsealed 8ddd2a142d3d

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