STH Plumbing & Heating Ltd
(http://www.sthph.co.uk) 📸 Data Snapshot: May 22, 2026Inspect the JSON-LD. Is there an Organization or Person schema, and does it carry sameAs links to real external profiles (LinkedIn, socials)? Missing schema or no identity declaration signals an anonymous entity.
There is a total absence of JSON-LD structured data (schema_json: null), which is a significant technical authority gap for a company claiming ‘innovative’ status. While they claim to have engineers with ‘over 15 years experience’, no individuals are named, and there is no Person schema or sameAs links to professional profiles. The technical implementation is dated, with duplicate H1 tags on the Heating, Plumbing, and Gallery pages undermining the claim of professional excellence.
The site makes bold claims about being ‘preferred installers’ and having a ‘proven track record of creating innovative designs’, but fails to demonstrate this with data. The Gallery page contains generic image references like [IMG: bathroom renovation] and [IMG: underfloor heating] but lacks project descriptions, dates, or specific customer outcomes. The marketing tone suggests a high-end design firm, but the content reflects a standard reactive maintenance plumber.
Identity & Authority is read from the structured data first: whether the site declares who it is in machine-readable schema, with verifiable identity links. Below is the schema captured per page, then the external proof links that support (or fail to support) that identity.
🔗 Identity & Technical Layer — schema JSON-LD: identity chains, entity gaps
🛡️ Trust Signals — external proof links that back the declared identity
| Page | Reviews | Proof links |
|---|---|---|
| / (home) | 11 | 5 |
| /contact/ | 10 | 5 |
| /heating/ | 8 | 3 |
| /bathroominstallations/ | 8 | 3 |
| /gallery/ | 8 | 3 |
| /plumbing/ | 8 | 3 |
This page presents a snapshot of public data from STH Plumbing & Heating Ltd, captured on May 22, 2026, to show how machine logic reads Identity & Authority signals into an AI reputation evaluation.
Purpose: This data is presented under “Fair Use” for the purpose of independent signal analysis, allowing readers to see the raw signals behind the reputation score.
Notice to STH Plumbing & Heating Ltd: This analysis is part of a non-adversarial audit conducted by 1 Euro SEO. The results are intended as professional feedback to help improve any website’s machine-readability and authority signals. The evaluation is free, and any company can request a fresh audit at any time.
Any company can use the insights for free and improve its voice. When a company has updated its content, it can always submit a new audit request, which will be reflected in a new current score.
To all users: You are encouraged to visit the live site at http://www.sthph.co.uk to view the most current version of its content and see directly what this company is about and what it offers.