Plumbers in London that AI assistants recommend

Pimlico Plumbers is named most, in 94% of 36 answers.

Plumbers in London named by AI assistants, November 2026

  1. 1Pimlico Plumbers94%

    95%: 82 to 99%

    ChatGPT
    100%
    Claude
    100%
    Gemini
    83%
    Questions
    4 of 4
    Avg. position
    1.2

    Named in answers to

    • Who is the best plumber in London?, from ChatGPT, Claude and Gemini
    • I have a leaking pipe at home in London. Which plumbing company should I call?, from ChatGPT, Claude and Gemini
    • I need an emergency plumber in London tonight. Who would you recommend?, from ChatGPT, Claude and Gemini
    • Which plumber in London would you trust to fit a new boiler?, from ChatGPT, Claude and Gemini
    Is this your business?
  2. 2Aspect58%

    95%: 42 to 73%

    ChatGPT
    75%
    Claude
    0%
    Gemini
    100%
    Questions
    4 of 4
    Avg. position
    2.2

    Named in answers to

    • Who is the best plumber in London?, from ChatGPT and Gemini
    • I have a leaking pipe at home in London. Which plumbing company should I call?, from ChatGPT and Gemini
    • I need an emergency plumber in London tonight. Who would you recommend?, from ChatGPT and Gemini
    • Which plumber in London would you trust to fit a new boiler?, from Gemini

    Also written Aspect.co.uk

    Is this your business?
  3. 3Dyno-Rod33%

    95%: 20 to 50%

    ChatGPT
    17%
    Claude
    25%
    Gemini
    58%
    Questions
    3 of 4
    Avg. position
    2.7

    Named in answers to

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

    Also written Dyno-Rod London, Dyno-Rod Plumbing

    Is this your business?
  4. 4HomeServe17%

    95%: 8 to 32%

    ChatGPT
    33%
    Claude
    17%
    Gemini
    0%
    Questions
    2 of 4
    Avg. position
    3.2

    Named in answers to

    • Who is the best plumber in London?, from ChatGPT
    • Which plumber in London would you trust to fit a new boiler?, from ChatGPT and Claude
    Is this your business?
  5. 5British Gas14%

    95%: 6 to 29%

    ChatGPT
    25%
    Claude
    17%
    Gemini
    0%
    Questions
    1 of 4
    Avg. position
    1.6

    Named in answers to

    • Which plumber in London would you trust to fit a new boiler?, from ChatGPT and Claude
    Is this your business?
  6. 6Metro Rod14%

    95%: 6 to 29%

    ChatGPT
    0%
    Claude
    42%
    Gemini
    0%
    Questions
    2 of 4
    Avg. position
    2.4

    Named in answers to

    • I have a leaking pipe at home in London. Which plumbing company should I call?, from Claude
    • I need an emergency plumber in London tonight. Who would you recommend?, from Claude
    Is this your business?
  7. 7Aqualine Plumbing and Heating14%

    95%: 6 to 29%

    ChatGPT
    0%
    Claude
    42%
    Gemini
    0%
    Questions
    3 of 4
    Avg. position
    3

    Named in answers to

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

    Also written Aqualine Plumbing & Heating

    Is this your business?
  8. 824/7 Home Rescue14%

    95%: 6 to 29%

    ChatGPT
    8%
    Claude
    33%
    Gemini
    0%
    Questions
    2 of 4
    Avg. position
    4.2

    Named in answers to

    • I have a leaking pipe at home in London. Which plumbing company should I call?, from ChatGPT and Claude
    • I need an emergency plumber in London tonight. Who would you recommend?, from Claude
    Is this your business?
  9. 9Fantastic Services11%

    95%: 4 to 25%

    ChatGPT
    25%
    Claude
    8%
    Gemini
    0%
    Questions
    3 of 4
    Avg. position
    2.8

    Named in answers to

    • Who is the best plumber in London?, from Claude
    • I have a leaking pipe at home in London. Which plumbing company should I call?, from ChatGPT
    • I need an emergency plumber in London tonight. Who would you recommend?, from ChatGPT
    Is this your business?
  10. 10Metro Plumb11%

    95%: 4 to 25%

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

    Named in answers to

    • Who is the best plumber in London?, from Claude
    • I have a leaking pipe at home in London. Which plumbing company should I call?, from Claude
    • Which plumber in London would you trust to fit a new boiler?, from Claude

    Also written Metro Plumb London, WaterSafe-approved local firms like Metro Plumb London

    Is this your business?
  11. 11PHS8%

    95%: 3 to 22%

    ChatGPT
    0%
    Claude
    0%
    Gemini
    25%
    Questions
    1 of 4
    Avg. position
    1

    Named in answers to

    • Which plumber in London would you trust to fit a new boiler?, from Gemini
    Is this your business?
  12. 12Hometree8%

    95%: 3 to 22%

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

    Named in answers to

    • Who is the best plumber in London?, from Claude
    • I have a leaking pipe at home in London. Which plumbing company should I call?, from Claude
    • Which plumber in London would you trust to fit a new boiler?, from Claude
    Is this your business?
  13. 13Corgi HomePlan8%

    95%: 3 to 22%

    ChatGPT
    0%
    Claude
    25%
    Gemini
    0%
    Questions
    1 of 4
    Avg. position
    3.7

    Named in answers to

    • Which plumber in London would you trust to fit a new boiler?, from Claude
    Is this your business?
  14. 14London Plumbing Services8%

    95%: 3 to 22%

    ChatGPT
    0%
    Claude
    25%
    Gemini
    0%
    Questions
    2 of 4
    Avg. position
    4.7

    Named in answers to

    • Who is the best plumber in London?, from Claude
    • I need an emergency plumber in London tonight. Who would you recommend?, from Claude

    Also written London Plumbing Services 24/7

    Is this your business?
  15. 15H2 Property Services6%

    95%: 2 to 18%

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

    Named in answers to

    • Who is the best plumber in London?, from Gemini
    • Which plumber in London would you trust to fit a new boiler?, from Gemini
    Is this your business?
  16. 16My Plumber6%

    95%: 2 to 18%

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

    Named in answers to

    • I have a leaking pipe at home in London. Which plumbing company should I call?, from ChatGPT
    Is this your business?
  17. 171st Call Plumbers6%

    95%: 2 to 18%

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

    Named in answers to

    • Who is the best plumber in London?, from Claude
    • I have a leaking pipe at home in London. Which plumbing company should I call?, 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. 15 more names came up in a single answer and are counted above but not listed.

Plumbers in London: is this your field?

32different names in 36 answers, 15 of them only once. The assistants change their minds from one answer to the next.

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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 London, ChatGPT, Claude and Gemini named Pimlico Plumbers most often, in 94% of answers (its AI Recommendation Rate), then Aspect (58%) and Dyno-Rod (33%). Across 36 answers they named 32 different businesses, 15 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 · London

94% of answers named Pimlico Plumbers

Answers
36
Businesses named
32
Named only once
15
Named by 2+ assistants
7 of 17
Named again on a rerun
62%

Edition November 2026. Download the data

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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
1Pimlico Plumbers100%Pimlico Plumbers100%Aspect100%
2Aspect75%Metro Rod42%Pimlico Plumbers83%
3HomeServe33%Aqualine Plumbing and Heating42%Dyno-Rod58%
4British Gas25%24/7 Home Rescue33%PHS25%
5Fantastic Services25%Metro Plumb33%H2 Property Services17%

Questions about plumbers in London

ChatGPT, Claude and Gemini named Pimlico Plumbers most often, in 94% of 36 answers, then Aspect (58%) and Dyno-Rod (33%). 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.

Not always. ChatGPT named Pimlico Plumbers most often (100% of its answers), Claude Pimlico Plumbers (100%) and Gemini Aspect (100%). 7 of the 17 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, 62% 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.

Named by AI assistants: Plumbers in London, AIGROW AI Visibility Index, November 2026
<a href="https://aigrow.gg/index/plumbers/london"><img src="https://aigrow.gg/badges/index/2026-11/plumbers/london.svg" width="312" height="100" alt="Named by AI assistants: Plumbers in London, 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 London?
  2. 2I have a leaking pipe at home in London. Which plumbing company should I call?
  3. 3I need an emergency plumber in London tonight. Who would you recommend?
  4. 4Which plumber in London would you trust to fit a new boiler?

How to read this page

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 the United Kingdom. From the AI Source Map: 8 answers.

checkatrade.com
Read in 100% of the answers
which.co.uk
Read in 100% of the answers
trustatrader.com
Read in 88% of the answers

AI Visibility Index

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