The Most Recommended Plumbers in San Antonio — Measured on ChatGPT
Homeowners in San Antonio don't just search anymore — they ask ChatGPT who to call. In August 2026 we put the answer on record: 4 separate checks, phrased 4 different ways, run against 66 San Antonio-area plumbers.
No single company owns San Antonio. Anchor Plumbing Services, Big City Plumbing, LLC and Chambliss Plumbing Company and 2 more were each named in 2 of 4 checks — the same score, so we list them together rather than picking one. In all, 18 companies were named; the other 48 never appeared.
There is no number one here on purpose. Ask ChatGPT the same question twice and the answer can change, so we publish how many of the 4 checks named each company instead of a place that would move if we asked again. Companies named in only one check aren't listed.
For scale: of the 26 metros in this edition, San Antonio's cohort of 66 plumbers was the 14th largest.
Only 18 of 66
plumbers we track in San Antonio were ever named — 27%. Here's who made it:
Rankings are measured and cannot be purchased — sponsored blocks are labeled advertising and sit outside the ranked list.
Ask ChatGPT the same question twice and the answer can change. So we do not crown a number one. We publish how many of the 4 checks named each company. Companies named in more checks are the ones ChatGPT keeps coming back to. Companies named in only one check are not listed: a single mention does not repeat reliably.
Named in 2 of 4 checks
5 companies, listed alphabetically — they scored the same, so nothing here puts one above another.
- 2of 4
Anchor Plumbing Services
Helotes, TX · Recommended in 2 of 4 AI checks · 4.9★ (1,786 Google reviews)
Anchor Plumbing Services surfaced in 2 of the 4 checks when we asked; it operates from Helotes. Its Google profile shows 4.9 stars from 1,786 reviews.
- 2of 4
Big City Plumbing, LLC
San Antonio, TX · Recommended in 2 of 4 AI checks · 4.9★ (1,236 Google reviews)
Big City Plumbing, LLC came up in 2 of the 4 checks. It carries a 4.9-star rating across 1,236 Google reviews.
- 2of 4
Chambliss Plumbing Company
San Antonio, TX · Recommended in 2 of 4 AI checks · 5.0★ (1,513 Google reviews)
Chambliss Plumbing Company earned its place by showing up in 2 of the 4 checks. Google reviewers back it up: 5.0 stars over 1,513 reviews.
- 2of 4
George Plumbing Co.
San Antonio, TX · Recommended in 2 of 4 AI checks · 4.9★ (646 Google reviews)
George Plumbing Co. was recommended in 2 of the 4 checks. It carries a 4.9-star rating across 646 Google reviews.
- 2of 4
Roto-Rooter Plumbing & Water Cleanup
San Antonio, TX · Recommended in 2 of 4 AI checks · 4.8★ (1,051 Google reviews)
ChatGPT pointed San Antonio homeowners to Roto-Rooter Plumbing & Water Cleanup in 2 of the 4 checks. Google reviewers back it up: 4.8 stars over 1,051 reviews.
5 more companies were named in exactly one of the 4 checks. A single mention comes back less than half the time when we ask again, so they are measured but not published.
Measured August 2026 · 4 homeowner-style questions · This list is measured, never sold — no company can pay onto it. Groups are set by how many checks named each company; inside a group the order is alphabetical, because the measurement doesn't separate them.
The exact questions we asked
These are the verbatim homeowner phrasings behind the San Antonio numbers — each answer's named companies were logged:
- “Who is the best plumber in San Antonio, Texas?”
- “I have a plumbing emergency in San Antonio, Texas. Which plumber should I call?”
- “What is the most recommended plumbing company in San Antonio, Texas?”
- “Who should I hire to replace a water heater in San Antonio, Texas?”
Inside the San Antonio data
- Compared with the edition-wide average (28%), San Antonio's 27% sits below the line.
- 5 of the 18 companies ChatGPT named came up in more than one check. The other 5 surfaced once and aren't listed — a single mention doesn't hold up on a re-ask.
- The listed companies average 4.9 stars on Google, with 6,232 reviews between them.
- Not every winner sits downtown: Helotes all placed companies on the San Antonio board.
Is your company on this list? Say so — for free.
Any company on this list can grab a free "Most Recommended" badge to embed on its site — it displays how many checks named you and links back here so visitors can check it themselves.
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Each name above is winning homeowners that could be calling you. A free 60-second check shows how AI sees your company.
See if AI recommends youFree check by Fast Digital Marketing, the team behind this benchmark. How it works
San Antonio questions, answered
How many plumbers in San Antonio show up in ChatGPT's answers?
The August 2026 answer is 18. We verified 66 companies around San Antonio and ran 4 checks; 27% of the cohort ever got a mention.
Which plumber does ChatGPT recommend most in San Antonio?
No single answer. Anchor Plumbing Services, Big City Plumbing, LLC and Chambliss Plumbing Company and 2 more each came up in 2 of the 4 checks, which is as far as 4 checks can tell them apart.
Why are some companies grouped together?
We tested it. Running the identical questions a second time moved the top name in a large share of markets, but a company named in most checks was named in most checks again. The reliable number is how many of the 4 checks named you — so that's what the page shows, and equal counts share a group.
What questions were behind the San Antonio checks?
4 checks built this list, using phrasings like "Who should I hire to replace a water heater in San Antonio, Texas?". Every company ChatGPT named got counted; nothing else influenced the board.
Can plumbers buy their way onto this list?
No. This list is measured, never sold — a company appears only if ChatGPT actually recommended it, in more than one check, when we asked. Money cannot buy a place on this list. Paid messages on this page are labeled "Sponsored" and sit outside the measured list.
When does the San Antonio list update?
It was measured in August 2026 and gets re-measured every quarter, same method each time. New companies can break in whenever ChatGPT starts naming them.
New to San Antonio? These plumbers are just getting started.
Everything above this line was measured. The list on this page comes from asking AI assistants real questions and counting who they named — no one can buy their way onto it.
This section is different, and we want to be plain about it. The businesses below are brand new. They have not been measured, they have no rank and no score, and they are not part of the list above. They are here because they asked to be, we checked that they are real, and a business that opened last month has no way to show up in a ranking built on history. Nobody paid for a spot here — it is free, and it is not an endorsement.
Just opened a company in San Antonio? You can be the first one here.
Tell us who you are and we'll add you to this section — free. It is not a ranking and it will never say you are ranked, because you are not: you are new. When we re-run the benchmark, a real spot on the list above is something you earn, not something we hand out.
Add your new businessFull methodology: how these rankings are measured. Want the bigger picture? See every U.S. metro we benchmarked.