Baltimore, MD · October 2026
Which plumbers in Baltimore do AI assistants recommend?
We asked ChatGPT, Gemini, Perplexity and Claude Who is the best plumber in Baltimore, MD?
3 times each and counted every plumber they named.
Last updated · 12 answers
- 26plumbers named
- 2named by 3 or more engines
- 29/100answer stability
What the answers show
- AI assistants named 26 different plumbers in Baltimore, but only 2 came up on three or more engines.
- The same question, asked three times, rarely got the same list here (stability 29/100). One check of an assistant is a sample, not a verdict.
- The most-named plumber was Warrior Plumbing & Heating, in 11 of 12 answers across 4 of 4 engines.
- consumeraffairs.com was the listing site AI assistants cited most often for plumbers in Baltimore (7 of 12 answers), so a listing there matters.
Plumbers AI assistants named in Baltimore
| Plumber | ChatGPT | Gemini | Perplexity | Claude | Total |
|---|---|---|---|---|---|
| 1Warrior Plumbing & Heating | 3/3 | 3/3 | 2/3 | 3/3 | 11/12 |
| 2Roto-Rooter | 1/3 | 0/3 | 1/3 | 2/3 | 4/12 |
| 3Mahon Plumbing | 0/3 | 1/3 | 0/3 | 3/3 | 4/12 |
| 4Len The Plumber | 0/3 | 2/3 | 0/3 | 1/3 | 3/12 |
| 5Mike's Plumbing & Heating | 1/3 | 0/3 | 0/3 | 1/3 | 2/12 |
| 6Saffer Plumbing, Heating & Electrical | 0/3 | 1/3 | 0/3 | 1/3 | 2/12 |
| 7Abbott's Plumbing | 0/3 | 2/3 | 0/3 | 0/3 | 2/12 |
| 8All Clear Plumbing & Drain Service | 2/3 | 0/3 | 0/3 | 0/3 | 2/12 |
| 9Benjamin Franklin Plumbing of Baltimore | 0/3 | 0/3 | 0/3 | 2/3 | 2/12 |
| 10Brian B. Quick Plumbing | 0/3 | 0/3 | 2/3 | 0/3 | 2/12 |
Also named: Catons Plumbing, Drains & Water Cleanup (2), Michael & Son Services (2), Saffer Total Home (2), Stephen J. Tant Plumbing (2), Catons Plumbing & Drain Service (1), Ebenezer Plumbing & Drain (1), Ensor Plumbing (1), F.H. Furr (1), Heil Plumbing (1), HOSANNA Plumbing & Drain LLC (1), Impressive Drain Cleaning (1), Maryland Sewer & Plumbing Service (1), Millennium Plumbing (1), Prime Plumbing (1), PUZO Plumbing & Drain LLC (1), TNT Plumbing & Drain Service (1).
Sources AI assistants cited
The websites the engines linked to most often in these answers.
- consumeraffairs.com7 of 12 answers
- bbb.org5 of 12 answers
- bestpickreports.com5 of 12 answers
- angi.com4 of 12 answers
- homeadvisor.com4 of 12 answers
Is your business in these answers?
Leolens asks ChatGPT, Gemini, Perplexity and Claude the questions your customers ask, every month, and shows whether they name you and whether what they say about you is true.
Plans start at $799 per month for one location. For plumbing businesses we write your question set with you first, and nothing is charged until it exists.
Why some plumbers show up and others don’t
Assistants recommend what they can find and cross-check. What tends to help:
- Show emergency availability where assistants look for it: 24/7 hours on your Google Business Profile, the same hours on your website, and a phone number a person answers.
- Keep your business name, address and phone number identical on Google, Yelp, Angi, the BBB and HomeAdvisor.
- Publish a page for each job type (water heaters, drain clearing, slab leaks, repiping) and each city you cover, with your license number and what a visit includes.
- Collect reviews that name the job and the neighborhood. "Replaced our water heater in Baltimore" gives an assistant more to work with than five stars alone.
Questions
Which plumbers in Baltimore do AI assistants recommend most often?
In October 2026, Warrior Plumbing & Heating was named in 11 of 12 answers from ChatGPT, Gemini, Perplexity and Claude, followed by Roto-Rooter (4) and Mahon Plumbing (4). The table above has the full count.
What is the best plumber in Baltimore, according to AI?
The assistants do not settle on one. Asked Who is the best plumber in Baltimore, MD?
3 times each, they named 26 different plumbers, and 2 came up on three or more engines. Which one an assistant suggests can change from one ask to the next.
Do AI assistants give the same answer every time?
No. Each assistant was asked the same question 3 times. On a 0–100 scale, where 100 means the same names every time, their answers scored 29 on average: ChatGPT 34, Gemini 29, Perplexity 28, Claude 24.
Where do AI assistants get their recommendations for plumbers in Baltimore?
From the sources they search and cite. The most-cited here were consumeraffairs.com (7 answers), bbb.org (5 answers), bestpickreports.com (5 answers). A business's own website and listings on those sites are what the assistants read.
Does Leolens rank or endorse these businesses?
No. The table counts how often AI assistants named each business. Leolens did not rate, review or rank them, and no business paid to appear.
How we collected this
In October 2026 we asked ChatGPT (gpt-5.6-terra), Gemini (gemini-3.8-flash), Perplexity (perplexity/sonar) and Claude (claude-sonnet-5) the question Who is the best plumber in Baltimore, MD?
3 times each, through each provider’s API with web search turned on, as a new conversation with no account, history or location. A separate model listed the businesses each answer named; we checked every name against the answer’s own text and merged different spellings of the same business. Sources are the sites the engines linked to.
The apps use your location and history, so what you see there can differ. Nothing on this page is a rating or review by Leolens, and no business paid to appear. For how this market compares with the rest, see the October 2026 study.
Spot an error, or want your business removed from this page? Email hello@tryleolens.com and we’ll correct it.