Which plumbers do AI assistants recommend in Phoenix, AZ?
We ask Google Gemini (with Google Search) the questions people really type, such as “Who is the best plumber in Phoenix, AZ?”, every week, sampling each question several times, and count which businesses they name. Period: 2026-W43. Updated 2026-10-20.
Businesses named by AI assistants
| # | Business | Mention rate | 95% confidence interval | Named first |
|---|---|---|---|---|
| 1 | The Aussie Plumber Google Gemini 6/6 | 100% 6 of 6 answers | 61% to 100% | 5 |
| 2 | George Brazil Plumbing & Electrical Google Gemini 5/6 | 83% 5 of 6 answers | 44% to 97% | 0 |
| 3 | Wyman Plumbing & Mechanical Google Gemini 5/6 | 83% 5 of 6 answers | 44% to 97% | 0 |
| 4 | Parker & Sons Google Gemini 4/6 | 67% 4 of 6 answers | 30% to 90% | 0 |
| 5 | Robins Plumbing, Inc. Google Gemini 4/6 | 67% 4 of 6 answers | 30% to 90% | 1 |
| 6 | Trident Plumbing & Drain Google Gemini 3/6 | 50% 3 of 6 answers | 19% to 81% | 0 |
| 7 | AZ Family Plumbing Google Gemini 2/6 | 33% 2 of 6 answers | 10% to 70% | 0 |
| 8 | Cure All Plumbing Google Gemini 2/6 | 33% 2 of 6 answers | 10% to 70% | 0 |
| 9 | Goettl Air Conditioning & Plumbing Google Gemini 1/6 | 17% 1 of 6 answers | 3% to 56% | 0 |
| 10 | Phend Plumbing & Rooter Google Gemini 1/6 | 17% 1 of 6 answers | 3% to 56% | 0 |
| 11 | Roto-Rooter Phoenix Google Gemini 1/6 | 17% 1 of 6 answers | 3% to 56% | 0 |
| 12 | Chas Roberts Google Gemini 1/6 | 17% 1 of 6 answers | 3% to 56% | 0 |
| 13 | Somers Plumbers Google Gemini 1/6 | 17% 1 of 6 answers | 3% to 56% | 0 |
Mention rate = share of answers that name the business. The interval shows the range compatible with the sample: when two intervals overlap, the difference may be noise.
Where the AI assistants look
| Source cited | Share of answers |
|---|---|
| rotorooter.com | 100% |
| consumeraffairs.com | 67% |
| forbes.com | 50% |
| goettl.com | 33% |
| theaussieplumber.com | 33% |
| reddit.com | 33% |
| thumbtack.com | 33% |
| theownerbuildernetwork.co | 33% |
| parkerandsons.com | 33% |
| angi.com | 33% |
We can run the same measurement for your business, your competitors and your own questions, across more AI assistants. Write to jovianlabsstudio@gmail.com.
Questions
Does this mean these plumbers are the best?
No. It measures what AI assistants say, not service quality. AI answers can be incomplete or outdated.
Why do the results change from one answer to the next?
AI assistants do not give the same answer every time. That is why we sample each question several times and report confidence intervals.
How can a business appear more often?
The answers rely on the sources listed above: being present and well reviewed there is a good start. See the methodology.