Cookies on AIGROW

We use necessary cookies to run the site. With your permission, we also use cookies for analytics, session recordings and marketing attribution.

Cookie Policy

Plumbers in Toronto that AI assistants recommend

Mr. Rooter Plumbing is named most, in 97% of 36 answers.

The ranking

AI Recommendation Rate

Plumbers in Toronto named by AI assistants, November 2026

  1. 1Mr. Rooter Plumbing97%

    95%: 86 to 100%

    ChatGPT
    92%
    Claude
    100%
    Gemini
    100%
    Questions
    4 of 4
    Avg. position
    1.7

    Named in answers to

    • Who is the best plumber in Toronto?, from ChatGPT, Claude and Gemini
    • I have a leaking pipe at home in Toronto. Which plumbing company should I call?, from ChatGPT, Claude and Gemini
    • I need an emergency plumber in Toronto tonight. Who would you recommend?, from ChatGPT, Claude and Gemini
    • Which plumber in Toronto would you trust to replace a water heater?, from ChatGPT, Claude and Gemini

    Also written Mr. Rooter Plumbing of Toronto, Mr. Rooter Plumbing of Toronto ON

    Is this your business?
  2. 2DrainWorks Plumbing33%

    95%: 20 to 50%

    ChatGPT
    0%
    Claude
    0%
    Gemini
    100%
    Questions
    4 of 4
    Avg. position
    1.2

    Named in answers to

    • Who is the best plumber in Toronto?, from Gemini
    • I have a leaking pipe at home in Toronto. Which plumbing company should I call?, from Gemini
    • I need an emergency plumber in Toronto tonight. Who would you recommend?, from Gemini
    • Which plumber in Toronto would you trust to replace a water heater?, from Gemini

    Also written DrainWorks Plumbing & Water Filtration, DrainWorks Plumbing & Drainage, DrainWorks Plumbing & Water Damage

    Is this your business?
  3. 3Rescue Rooter28%

    95%: 16 to 44%

    ChatGPT
    0%
    Claude
    83%
    Gemini
    0%
    Questions
    4 of 4
    Avg. position
    1.7

    Named in answers to

    • Who is the best plumber in Toronto?, from Claude
    • I have a leaking pipe at home in Toronto. Which plumbing company should I call?, from Claude
    • I need an emergency plumber in Toronto tonight. Who would you recommend?, from Claude
    • Which plumber in Toronto would you trust to replace a water heater?, from Claude

    Also written Rescue Rooter Toronto

    Is this your business?
  4. 4John The Plumber28%

    95%: 16 to 44%

    ChatGPT
    0%
    Claude
    83%
    Gemini
    0%
    Questions
    4 of 4
    Avg. position
    4.4

    Named in answers to

    • Who is the best plumber in Toronto?, from Claude
    • I have a leaking pipe at home in Toronto. Which plumbing company should I call?, from Claude
    • I need an emergency plumber in Toronto tonight. Who would you recommend?, from Claude
    • Which plumber in Toronto would you trust to replace a water heater?, from Claude

    Also written Plumbing Mississauga / John The Plumber

    Is this your business?
  5. 5Reliance Home Comfort17%

    95%: 8 to 32%

    ChatGPT
    17%
    Claude
    8%
    Gemini
    25%
    Questions
    1 of 4
    Avg. position
    2.8

    Named in answers to

    • Which plumber in Toronto would you trust to replace a water heater?, from ChatGPT, Claude and Gemini
    Is this your business?
  6. 6Plumbing Toronto17%

    95%: 8 to 32%

    ChatGPT
    0%
    Claude
    0%
    Gemini
    50%
    Questions
    2 of 4
    Avg. position
    3

    Named in answers to

    • I have a leaking pipe at home in Toronto. Which plumbing company should I call?, from Gemini
    • I need an emergency plumber in Toronto tonight. Who would you recommend?, from Gemini
    Is this your business?
  7. 7WaterWorks Plumbing & Drains14%

    95%: 6 to 29%

    ChatGPT
    25%
    Claude
    0%
    Gemini
    17%
    Questions
    2 of 4
    Avg. position
    2.8

    Named in answers to

    • Who is the best plumber in Toronto?, from ChatGPT and Gemini
    • I have a leaking pipe at home in Toronto. Which plumbing company should I call?, from ChatGPT

    Also written Waterworks Plumbing & Drains

    Is this your business?
  8. 8Hoerner Heating & Plumbing11%

    95%: 4 to 25%

    ChatGPT
    33%
    Claude
    0%
    Gemini
    0%
    Questions
    3 of 4
    Avg. position
    1.8

    Named in answers to

    • Who is the best plumber in Toronto?, from ChatGPT
    • I have a leaking pipe at home in Toronto. Which plumbing company should I call?, from ChatGPT
    • Which plumber in Toronto would you trust to replace a water heater?, from ChatGPT
    Is this your business?
  9. 9ExpressRooter Plumbing11%

    95%: 4 to 25%

    ChatGPT
    33%
    Claude
    0%
    Gemini
    0%
    Questions
    3 of 4
    Avg. position
    2.8

    Named in answers to

    • Who is the best plumber in Toronto?, from ChatGPT
    • I have a leaking pipe at home in Toronto. Which plumbing company should I call?, from ChatGPT
    • I need an emergency plumber in Toronto tonight. Who would you recommend?, from ChatGPT
    Is this your business?
  10. 10Zenith Plumbing11%

    95%: 4 to 25%

    ChatGPT
    0%
    Claude
    33%
    Gemini
    0%
    Questions
    3 of 4
    Avg. position
    4.8

    Named in answers to

    • Who is the best plumber in Toronto?, from Claude
    • I have a leaking pipe at home in Toronto. Which plumbing company should I call?, from Claude
    • I need an emergency plumber in Toronto tonight. Who would you recommend?, from Claude

    Also written Zenith Plumbing & Drain

    Is this your business?
  11. 11Drain Relief8%

    95%: 3 to 22%

    ChatGPT
    25%
    Claude
    0%
    Gemini
    0%
    Questions
    2 of 4
    Avg. position
    2.3

    Named in answers to

    • Who is the best plumber in Toronto?, from ChatGPT
    • I need an emergency plumber in Toronto tonight. Who would you recommend?, from ChatGPT
    Is this your business?
  12. 12Plumbing Mississauga8%

    95%: 3 to 22%

    ChatGPT
    0%
    Claude
    25%
    Gemini
    0%
    Questions
    2 of 4
    Avg. position
    3

    Named in answers to

    • Who is the best plumber in Toronto?, from Claude
    • I have a leaking pipe at home in Toronto. Which plumbing company should I call?, from Claude

    Also written Plumbing Mississauga Inc.

    Is this your business?
  13. 13Parker Plumbing6%

    95%: 2 to 18%

    ChatGPT
    17%
    Claude
    0%
    Gemini
    0%
    Questions
    1 of 4
    Avg. position
    3

    Named in answers to

    • I have a leaking pipe at home in Toronto. Which plumbing company should I call?, from ChatGPT
    Is this your business?
  14. 14Plumbing Mississauga & Toronto6%

    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 Toronto?, from Claude
    • I have a leaking pipe at home in Toronto. Which plumbing company should I call?, from Claude
    Is this your business?
  15. 15Plumbing Squad6%

    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 Toronto?, from Claude
    • I need an emergency plumber in Toronto tonight. Who would you recommend?, from Claude
    Is this your business?
  16. 16New Canadian Drain & Plumbing6%

    95%: 2 to 18%

    ChatGPT
    17%
    Claude
    0%
    Gemini
    0%
    Questions
    2 of 4
    Avg. position
    3.5

    Named in answers to

    • I have a leaking pipe at home in Toronto. Which plumbing company should I call?, from ChatGPT
    • I need an emergency plumber in Toronto tonight. Who would you recommend?, from ChatGPT
    Is this your business?
  17. 17Draintech Plumbing & Drain Services6%

    95%: 2 to 18%

    ChatGPT
    0%
    Claude
    17%
    Gemini
    0%
    Questions
    2 of 4
    Avg. position
    4

    Named in answers to

    • I need an emergency plumber in Toronto tonight. Who would you recommend?, from Claude
    • Which plumber in Toronto would you trust to replace a water heater?, from Claude

    Also written Draintech Sewer and Drain Services

    Is this your business?
  18. 18Plumbing Trade School6%

    95%: 2 to 18%

    ChatGPT
    0%
    Claude
    17%
    Gemini
    0%
    Questions
    2 of 4
    Avg. position
    4

    Named in answers to

    • I need an emergency plumber in Toronto tonight. Who would you recommend?, from Claude
    • Which plumber in Toronto would you trust to replace a water heater?, from Claude

    Also written Plumbing Trade School Inc., Plumbing Trade School Services

    Is this your business?
  19. 19Toronto Plumbing & Drain6%

    95%: 2 to 18%

    ChatGPT
    0%
    Claude
    17%
    Gemini
    0%
    Questions
    2 of 4
    Avg. position
    5

    Named in answers to

    • I need an emergency plumber in Toronto tonight. Who would you recommend?, from Claude
    • Which plumber in Toronto 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. 28 more names came up in a single answer and are counted above but not listed.

Plumbers in Toronto: is this your field?

47different names in 36 answers, 28 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.

See the badge codeSee the AI Local Fix for $190Read the trade pageAll done-for-you services
How 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 Toronto, ChatGPT, Claude and Gemini named Mr. Rooter Plumbing most often, in 97% of answers (its AI Recommendation Rate), then DrainWorks Plumbing (33%) and Rescue Rooter (28%). Across 36 answers they named 47 different businesses, 28 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.

Plumbers · Toronto

97% of answers named Mr. Rooter Plumbing

Answers
36
Businesses named
47
Named only once
28
Named by 2+ assistants
3 of 19
Named again on a rerun
54%

Edition November 2026. Download the data

Share this rankingLinkedInX

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.

#ChatGPTClaudeGemini
1Mr. Rooter Plumbing92%Mr. Rooter Plumbing100%Mr. Rooter Plumbing100%
2Hoerner Heating & Plumbing33%Rescue Rooter83%DrainWorks Plumbing100%
3ExpressRooter Plumbing33%John The Plumber83%Plumbing Toronto50%
4WaterWorks Plumbing & Drains25%Zenith Plumbing33%Reliance Home Comfort25%
5Drain Relief25%Plumbing Mississauga25%WaterWorks Plumbing & Drains17%

Questions about plumbers in Toronto

How AI assistants recommend plumbers

ChatGPT, Claude and Gemini named Mr. Rooter Plumbing most often, in 97% of 36 answers, then DrainWorks Plumbing (33%) and Rescue Rooter (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.

On the first name, yes: each of them named Mr. Rooter Plumbing most often. 3 of the 19 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, 54% 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
Named by AI assistants: Plumbers in Toronto, AIGROW AI Visibility Index, November 2026
<a href="https://aigrow.gg/index/plumbers/toronto"><img src="https://aigrow.gg/badges/index/2026-11/plumbers/toronto.svg" width="312" height="100" alt="Named by AI assistants: Plumbers in Toronto, 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.

  1. 1Who is the best plumber in Toronto?
  2. 2I have a leaking pipe at home in Toronto. Which plumbing company should I call?
  3. 3I need an emergency plumber in Toronto tonight. Who would you recommend?
  4. 4Which plumber in Toronto 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 Canada. From the AI Source Map: 5 answers.

See every site for this category
bestprosintown.com
Read in 80% of the answers
birdeye.com
Read in 80% of the answers
plumbing.ca
Read in 80% of the answers

AI Visibility Index

Elsewhere in the Index

Plumbers elsewhere
CalgaryEdmontonMontrealOttawaQuebec CityVancouver
Also in Toronto
DentistsLawyersAccountantsGymsReal estate agenciesRestaurants

Not on this list? See what ChatGPT says about your business

Plumbers, Toronto: see whether the assistants name you, or someone else.

Free, no account, no card. About a minute.

Read the method

Edition November 2026 · published by Guglielmo Paesano, founder of AIGROW · data under CC BY 4.0