Waseit

Waseit study · UK · collected 2026-07-31

Which gas engineers do AI assistants recommend in Bristol?

We asked ChatGPT, Gemini and Perplexity 6 real buying questions about gas engineers in Bristol - the way customers actually ask. Every answer named specific businesses: 39 names came back for this trade in this city.

The names the assistants cite most

  • 1.Bristol Boiler Companycited 2 times · by openai, gemini
  • 2.Bristol Unigascited 2 times · by perplexity
  • 3.Ashton Gascited 2 times · by perplexity
  • 4.D'M Plumbing & Heatingcited 2 times · by perplexity
  • 5.Bristol Gascited 1 time · by openai
  • 6.Gas Safe Bristolcited 1 time · by openai
  • 7.Apex Gas Servicescited 1 time · by openai
  • 8.Bristol Heating and Gas Servicescited 1 time · by openai

Counts are citations across our sampled answers for this trade and city, collected 2026-07-31 via the assistants' APIs. Answers vary between runs - across the whole study, assistants agreed with each other on only 3% of names. A snapshot, honestly labelled, not a permanent ranking.

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Gas engineers in other cities

Other trades in Bristol

Full dataset and method: the 2026 UK study (1464 answers, 244 trade×city cells) · our methodology