{ "name": "seoplumbers.co.uk GB Plumber Registration Register", "title": "GB Plumber Registration Register", "url": "https://seoplumbers.co.uk/datasets/gb-plumber-registration-register/", "csv": "https://seoplumbers.co.uk/datasets/gb-plumber-registration-register.csv", "markdown": "https://seoplumbers.co.uk/datasets/gb-plumber-registration-register/index.md", "computed_at": "2026-10-28", "license": "https://seoplumbers.co.uk/terms", "headline": "The GB Plumber Registration Register carries 3 published figures read from 2 sources' own pages, under different breakdowns, so no one range is stated, read 26 October 2026.", "quotes": [ "The GB Plumber Registration Register carries 3 published figures read from 2 sources' own pages, under different breakdowns, so no one range is stated, read 26 October 2026.", "2 of the 12 named sources read in full publish a figure; 10 publish none, read 26 October 2026.", "GB Plumber Registration Register, scheme water-supply-pipe-installers: median 160 GBP across 1 source, read 26 October 2026.", "GB Plumber Registration Register, scheme catering-installers: median 114 GBP across 1 source, read 26 October 2026.", "GB Plumber Registration Register, requirement public-liability-insurance: median 2,000,000 GBP across 1 source, read 26 October 2026." ], "citation": "\"seoplumbers.co.uk GB Plumber Registration Register\", updated 2026-10-28, https://seoplumbers.co.uk/datasets/gb-plumber-registration-register/.", "changed_since": null, "national": { "unit": "GBP", "n": 3, "median": 160, "min": 114, "max": 2000000, "p25": 114, "p75": 2000000, "mean": 666758, "units": { "GBP": 3 }, "published_sources": 2, "named_sources": 14, "read_sources": 12, "not_published": 10, "published_share": 0.167 }, "by_axis": { "scheme": { "water-supply-pipe-installers": { "GBP": { "n": 1, "median": 160, "min": 160, "max": 160, "p25": 160, "p75": 160, "mean": 160 } }, "catering-installers": { "GBP": { "n": 1, "median": 114, "min": 114, "max": 114, "p25": 114, "p75": 114, "mean": 114 } } }, "requirement": { "public-liability-insurance": { "GBP": { "n": 1, "median": 2000000, "min": 2000000, "max": 2000000, "p25": 2000000, "p75": 2000000, "mean": 2000000 } } } }, "rows": [ { "source": "SNIPEF - WaterSafe certification scheme", "url": "https://snipef.org/contractors/certification-schemes/watersafe/", "figure": "£160.00 ", "value": 160, "unit": "GBP", "vat": "ex", "axis": { "scheme": "water-supply-pipe-installers" }, "retrieved_at": "2026-10-26", "quote": "The Annual Fee for members and non members is £160.00 + VAT.", "source_class": "first-party-index", "text_sha256": "d912ebaf3e1f1d860f3d61563ce266bed4bfd8fc82510adfbd6106aaf30c9164" }, { "source": "SNIPEF - WaterSafe certification scheme", "url": "https://snipef.org/contractors/certification-schemes/watersafe/", "figure": "£114.00 ", "value": 114, "unit": "GBP", "vat": "ex", "axis": { "scheme": "catering-installers" }, "retrieved_at": "2026-10-26", "quote": "The Annual Fee for members and non members is £114.00 + VAT", "source_class": "first-party-index", "text_sha256": "d912ebaf3e1f1d860f3d61563ce266bed4bfd8fc82510adfbd6106aaf30c9164" }, { "source": "CIPHE - WaterSafe approved contractor", "url": "https://www.ciphe.org.uk/professional/construction--engineering-organisations/watersafe/", "figure": "£2 million", "value": 2000000, "unit": "GBP", "vat": null, "axis": { "requirement": "public-liability-insurance" }, "retrieved_at": "2026-10-26", "quote": "Hold an accredited Water Regulations certificate Hold public liability insurance for £2 million.", "source_class": "first-party-index", "text_sha256": "b79b3dec3e288a9740d42e33e3c9c4254ef13334164bf0061cd34ef13611e93b" } ], "not_published": [ { "source": "HSE - gas safety legislation (domestic)", "url": "https://www.hse.gov.uk/gas/domestic/legislation.htm", "retrieved_at": "2026-09-28", "reason": "read in full and no accepted figure on the page" }, { "source": "HSE - L56, GSIUR 1998 Approved Code of Practice and guidance", "url": "https://www.hse.gov.uk/PUBNS/books/l56.htm", "retrieved_at": "2026-10-10", "reason": "read in full and no accepted figure on the page" }, { "source": "GOV.UK - registered gas engineer (regulated professions)", "url": "https://www.regulated-professions.service.gov.uk/professions/registered-gas-engineer", "retrieved_at": "2026-09-21", "reason": "read in full and no accepted figure on the page" }, { "source": "WaterSafe Register", "url": "https://www.watersafe.org.uk/", "retrieved_at": "2026-10-27", "reason": "every candidate on the page was refused" }, { "source": "WaterSafe - approved contractor schemes", "url": "https://www.watersafe.org.uk/about/installer_area/approved_contractors_schemes/", "retrieved_at": "2026-10-19", "reason": "every candidate on the page was refused" }, { "source": "WaterSafe - sign up", "url": "https://www.watersafe.org.uk/signup/", "retrieved_at": "2026-10-19", "reason": "read in full and no accepted figure on the page" }, { "source": "APHC - free WaterSafe membership", "url": "https://aphc.co.uk/licensed-membership/watersafe/", "retrieved_at": "2026-10-19", "reason": "read in full and no accepted figure on the page" }, { "source": "TrustMark", "url": "https://www.trustmark.org.uk/", "retrieved_at": "2026-09-28", "reason": "read in full and no accepted figure on the page" }, { "source": "Gas Safe Register - check an engineer", "url": "https://www.gassaferegister.co.uk/find-an-engineer-or-check-the-register/check-an-engineer/", "retrieved_at": "2026-10-05", "reason": "read in full and no accepted figure on the page" }, { "source": "Gas Safe Register - how to find an engineer or check the register", "url": "https://www.gassaferegister.co.uk/gas-safety/how-to-find-an-engineer-or-check-the-register/", "retrieved_at": "2026-10-05", "reason": "read in full and no accepted figure on the page" } ], "sources": [ { "url": "https://www.legislation.gov.uk/uksi/1998/2451/contents", "label": "Gas Safety (Installation and Use) Regulations 1998 - contents", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.legislation.gov.uk/uksi/1999/1148/contents", "label": "Water Supply (Water Fittings) Regulations 1999 - contents", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.hse.gov.uk/gas/domestic/legislation.htm", "label": "HSE - gas safety legislation (domestic)", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.hse.gov.uk/PUBNS/books/l56.htm", "label": "HSE - L56, GSIUR 1998 Approved Code of Practice and guidance", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.regulated-professions.service.gov.uk/professions/registered-gas-engineer", "label": "GOV.UK - registered gas engineer (regulated professions)", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.watersafe.org.uk/", "label": "WaterSafe Register", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.watersafe.org.uk/about/installer_area/approved_contractors_schemes/", "label": "WaterSafe - approved contractor schemes", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.watersafe.org.uk/signup/", "label": "WaterSafe - sign up", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://snipef.org/contractors/certification-schemes/watersafe/", "label": "SNIPEF - WaterSafe certification scheme", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://aphc.co.uk/licensed-membership/watersafe/", "label": "APHC - free WaterSafe membership", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.ciphe.org.uk/professional/construction--engineering-organisations/watersafe/", "label": "CIPHE - WaterSafe approved contractor", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.trustmark.org.uk/", "label": "TrustMark", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.gassaferegister.co.uk/find-an-engineer-or-check-the-register/check-an-engineer/", "label": "Gas Safe Register - check an engineer", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.gassaferegister.co.uk/gas-safety/how-to-find-an-engineer-or-check-the-register/", "label": "Gas Safe Register - how to find an engineer or check the register", "license": "the publisher's own terms; quoted for reporting and comment" } ], "methodology": "Every row is a verbatim sentence read from the named source's own page through our fetch service on the date shown, hash-pinned to the stored read (the sha of the page's visible text; the raw page is mirrored to R2). 2 of the 12 named sources that could be read published a usable figure; 10 published none and are recorded as not published, never filled in; 2 could not be read (blocked, dead or unreachable) and count nowhere. The headline figures (median, minimum, maximum, quartiles) are over ONE figure per source for each breakdown it prices, in GBP (a source's median where its page yielded several accepted sentences for one breakdown), so a page that gives figures for several breakdowns gives one for each and N counts 3 figures, never sentences; 5 candidate sentence(s) were refused by a reviewer with the reason recorded. The fuller derivation this dataset is chartered to grow into (not yet what the figures above are; they are each source's own published figure as read): one row per register and scheme - the statutory gas register, the seven WaterSafe approved-contractor schemes, the trade bodies and the government-endorsed quality scheme - with the instrument that compels it where one does, the entry requirement, the published annual fee, the insurance floor, and what the scheme's own rules permit a member to display. A plumber's site earns its credibility from these rows, and the fee-and-requirement comparison across them is published nowhere.", "embed": "

3 published figures

GB Plumber Registration Register, across 2 sources, read 26 October 2026

Source: seoplumbers.co.uk GB Plumber Registration Register
" }