AI Visibility Research
82% of plumbing businesses are invisible to ChatGPT. AI defaults to directories like Checkatrade and Bark for trade recommendations — most plumbers have thin websites with no schema, making them impossible for AI to verify or cite.
Check your business77%
Invisible to ChatGPT
plumbing businesses in London
4,389
Plumbers in London
23%
AI-visible
Can be found by AI assistants
2-4 weeks
Time to fix
With structured data + directories
The test
When asked "Can you recommend a plumbers in London?", ChatGPT typically responds: "I can suggest some ways to find a good plumbers in London. Checkatrade has verified reviews and ratings. Google Maps is also useful for finding nearby options. Look for businesses with consistent reviews across multiple platforms and at least 4 stars on Google."
Each AI system uses different data sources and citation patterns for London.
Source: Bing index
ChatGPT almost always recommends directories (Checkatrade, Bark) for plumber queries rather than individual businesses. Only 18% of responses cite actual plumber websites — those that get cited have service-specific pages and trade platform reviews.
Source: Live web crawl
Perplexity is slightly better at citing individual plumbers (27%) because it indexes Checkatrade profile pages and links back to the plumber's own site when it exists.
Source: Google index + Maps
Google AI Overviews for plumber queries show the Local Services Ads pack first, then Google-guaranteed results. Plumbers with Google Guarantee badges dominate AI summaries.
London has one of the highest concentrations of plumbing businesses globally. With 77% invisible to AI, the competition is fierce — but businesses that invest in structured data and directory presence stand out more dramatically because AI has so many options to filter through. The 23% that are visible have typically invested in professional SEO.
In London, the challenge is differentiation. Thousands of plumbing businesses compete for AI attention. Generic "we serve London" content gets buried. You need neighbourhood-level targeting, specialist positioning, and volume reviews to stand out. AI in London can distinguish between Greater London sub-areas — use this to your advantage.
Checkatrade is the #1 AI citation source for plumbing businesses in London
For plumbers in London, the highest-impact fix is registering on Checkatrade with a complete profile and actively collecting reviews there. Google AI Overviews dominate London searches because Google has the deepest local data for the UK capital. GBP completeness is the #1 factor. Combine this with a complete Google Business Profile (photos, hours, services, Q&A) and you've covered the two main AI citation pathways for London.
Plumbers businesses face specific challenges that prevent AI assistants from finding and recommending them.
Plumber websites are typically single-page brochure sites with a phone number and a stock photo. There is no content for AI to extract — no service pages, no FAQs, no areas served.
Emergency plumbing searches dominate this industry, but few plumbers have '24/7 emergency' content with structured hours data that AI can match to urgent queries.
Trade directories (Checkatrade, Bark, MyBuilder, Rated People) have far more content per plumber than the plumber's own website — AI cites the directory instead.
Plumbers rarely have reviews on anything other than Google. ChatGPT cross-references Yelp, Trustpilot, and Checkatrade — missing profiles mean missing citations.
What the visible businesses do differently
Separate pages for each service: emergency plumbing, boiler repair, bathroom fitting, central heating, drain unblocking — each with unique content • Checkatrade, Bark, and MyBuilder profiles with verified reviews and response-time data • Service area pages listing specific towns and postcodes served — AI uses this to match 'plumber in [specific area]' queries • Emergency availability clearly stated in schema (opens 24/7) and visible on every page
Schema types that matter: Plumber, HomeAndConstructionBusiness, LocalBusiness, Service
Create separate pages for emergency plumbing, boiler repair, bathroom installation, central heating, and drain clearing. Each page needs its own H1, 300+ words of unique content, and pricing ranges. This is what turns a brochure site into something AI can cite.
Checkatrade, Bark, MyBuilder, Rated People, and TrustATrader. These are the directories ChatGPT trusts for trade recommendations. A verified Checkatrade profile with 20+ reviews is worth more than any SEO trick.
Use Plumber schema with service area, availability (24/7 or hours), and services offered. Mark emergency availability explicitly — this is the #1 intent for plumber searches.
List the specific towns, postcodes, and boroughs you cover. AI matches 'plumber in Camden' to pages that mention Camden — not to generic 'we cover London' statements.
Google reviews alone aren't enough. ChatGPT cross-references Checkatrade, Trustpilot, and Yelp. Even 10 reviews per platform makes you citeable.
Only about 23% of plumbing businesses in London are visible to ChatGPT. The rest are invisible because they lack the structured data, directory presence, and content that AI assistants need to make recommendations. Our research shows that ChatGPT relies on Bing's index for 87% of its citations.
Most plumbing businesses can achieve basic AI visibility within 2-4 weeks by adding structured data, claiming key directories, and submitting to Bing Webmaster Tools. Full optimisation (including review building and content creation) typically takes 2-3 months to show results.
Not directly. ChatGPT uses Bing's index, not Google's. However, the factors that help you rank on Google (structured data, quality content, reviews) also help on Bing. Our data shows that 87% of ChatGPT citations match Bing's top 10 results, while only 56% match Google's top 10.
For plumbing businesses in London, Google AI Overviews currently performs best. Google AI Overviews dominate London searches because Google has the deepest local data for the UK capital. GBP completeness is the #1 factor.
plumbing businesses should use Plumber, HomeAndConstructionBusiness, LocalBusiness, Service schema types. The most impactful is adding your business details (name, address, phone, hours, services) in structured data that AI can read programmatically.
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