{ "name": "Asbestos Survey Cost Certifying Contractor Register", "title": "Certifying Contractor Register", "url": "https://asbestossurveycost.co.uk/datasets/certifying-contractor-register/", "csv": "https://asbestossurveycost.co.uk/datasets/certifying-contractor-register.csv", "markdown": "https://asbestossurveycost.co.uk/datasets/certifying-contractor-register/index.md", "computed_at": "2026-09-15", "license": "https://asbestossurveycost.co.uk/terms", "headline": "The Certifying Contractor Register carries 2 published figures read from 2 sources' own pages, from 1,062 to 20,000 count, read 15 September 2026.", "quotes": [ "The Certifying Contractor Register carries 2 published figures read from 2 sources' own pages, from 1,062 to 20,000 count, read 15 September 2026.", "2 of the 23 named sources read in full publish a figure; 21 publish none, read 15 September 2026.", "Certifying Contractor Register, scheme SELECT: median 1,231 member across 1 source, read 15 September 2026.", "Certifying Contractor Register, scheme NICEIC: median 1,062 count across 1 source, read 15 September 2026.", "Certifying Contractor Register, scheme NAPIT-Scotland: median 133 registered across 1 source, read 15 September 2026.", "Certifying Contractor Register, scheme NAPIT-UK: median 20,000 count across 1 source, read 15 September 2026." ], "citation": "\"Asbestos Survey Cost Certifying Contractor Register\", updated 2026-09-15, https://asbestossurveycost.co.uk/datasets/certifying-contractor-register/.", "changed_since": null, "national": { "unit": "count", "n": 2, "median": 10531, "min": 1062, "max": 20000, "p25": -3672.5, "p75": 24734.5, "mean": 10531, "units": { "count": 2, "member": 1, "registered": 1 }, "published_sources": 2, "named_sources": 24, "read_sources": 23, "not_published": 21, "published_share": 0.087 }, "by_axis": { "scheme": { "SELECT": { "member": { "n": 1, "median": 1231, "min": 1231, "max": 1231, "p25": 1231, "p75": 1231, "mean": 1231 } }, "NICEIC": { "count": { "n": 1, "median": 1062, "min": 1062, "max": 1062, "p25": 1062, "p75": 1062, "mean": 1062 } }, "NAPIT-Scotland": { "registered": { "n": 1, "median": 133, "min": 133, "max": 133, "p25": 133, "p75": 133, "mean": 133 } }, "NAPIT-UK": { "count": { "n": 1, "median": 20000, "min": 20000, "max": 20000, "p25": 20000, "p75": 20000, "mean": 20000 } } } }, "rows": [ { "source": "3. The Evidence - Regulation of electricians in Scotland: research report - gov.", "url": "https://www.gov.scot/publications/regulation-electricians-scotland/pages/4/", "figure": "1,231 member", "value": 1231, "unit": "member", "axis": { "scheme": "SELECT" }, "retrieved_at": "2026-09-12", "quote": "SELECT has 1,231 member-businesses based in Scotland.", "source_class": "primary-government", "text_sha256": "04ac394578f2c2e3cb1bc6dd760e1ff657c73fca6e120637d1691047816ab210" }, { "source": "3. The Evidence - Regulation of electricians in Scotland: research report - gov.", "url": "https://www.gov.scot/publications/regulation-electricians-scotland/pages/4/", "figure": "1,062", "value": 1062, "unit": "count", "axis": { "scheme": "NICEIC" }, "retrieved_at": "2026-09-12", "quote": "NICEIC has 1,062 electrical contractor businesses registered on its schemes.", "source_class": "primary-government", "text_sha256": "04ac394578f2c2e3cb1bc6dd760e1ff657c73fca6e120637d1691047816ab210" }, { "source": "3. The Evidence - Regulation of electricians in Scotland: research report - gov.", "url": "https://www.gov.scot/publications/regulation-electricians-scotland/pages/4/", "figure": "133 registered members", "value": 133, "unit": "registered", "axis": { "scheme": "NAPIT-Scotland" }, "retrieved_at": "2026-09-12", "quote": "NAPIT currently have 133 registered members in Scotland, 40 of which are registered solely as electrical contractors, with 93 electrical contractors undertaking Microgeneration Certification Scheme (MCS) solar voltaic installations.", "source_class": "primary-government", "text_sha256": "04ac394578f2c2e3cb1bc6dd760e1ff657c73fca6e120637d1691047816ab210" }, { "source": "NAPIT - Member Search", "url": "https://search.napit.org.uk/", "figure": "20,000", "value": 20000, "unit": "count", "axis": { "scheme": "NAPIT-UK" }, "retrieved_at": "2026-09-12", "quote": "There are currently more than 20,000 NAPIT registered installers in the electrical, heating, plumbing, ventilation, microgeneration and building fabric trades across the UK domestic, commercial and industrial markets.", "source_class": "first-party-index", "text_sha256": "2206fd95b63fa92fd22088b8bcfecfab6aa13a0da619b9f2c16a41db7f99ff24" } ], "not_published": [ { "source": "ELECTRICAL COMPETENT PERSON SCHEME OPERATORS LIMITED overview - Find and update", "url": "https://find-and-update.company-information.service.gov.uk/company/08840127", "retrieved_at": "2026-09-12", "reason": "read in full and no accepted figure on the page" }, { "source": "Competent person schemes - GOV.UK", "url": "https://www.gov.uk/building-regulations-competent-person-schemes", "retrieved_at": "2026-09-12", "reason": "read in full and no accepted figure on the page" }, { "source": "Competent person scheme - current schemes and how schemes are authorised - GOV.U", "url": "https://www.gov.uk/guidance/competent-person-scheme-current-schemes-and-how-schemes-are-authorised", "retrieved_at": "2026-09-11", "reason": "read in full and no accepted figure on the page" }, { "source": "Find a Registered Electrician or Contractor", "url": "https://niceic.com/find-a-contractor/", "retrieved_at": "2026-09-12", "reason": "read in full and no accepted figure on the page" }, { "source": "Rented Sector scheme: apply for Certification", "url": "https://niceic.com/for-the-trades-1/professional-standards/schemes/rented-sector/", "retrieved_at": "2026-09-12", "reason": "read in full and no accepted figure on the page" }, { "source": "Building Engineering Services Competent Assessment (BESCA)", "url": "https://www.besca.org.uk/", "retrieved_at": "2026-09-12", "reason": "read in full and no accepted figure on the page" }, { "source": "Blue Flame - Home", "url": "https://www.blueflamecertification.com/", "retrieved_at": "2026-09-12", "reason": "read in full and no accepted figure on the page" }, { "source": "Home", "url": "https://www.electricalcompetentperson.co.uk/", "retrieved_at": "2026-09-12", "reason": "read in full and no accepted figure on the page" }, { "source": "About Us", "url": "https://www.electricalcompetentperson.co.uk/About-Us", "retrieved_at": "2026-09-12", "reason": "read in full and no accepted figure on the page" }, { "source": "Households", "url": "https://www.napit.org.uk/consumer-advice/Households/", "retrieved_at": "2026-09-12", "reason": "read in full and no accepted figure on the page" }, { "source": "Find a Registered Electrician or Contractor", "url": "https://www.niceic.com/find-a-contractor", "retrieved_at": "2026-09-11", "reason": "read in full and no accepted figure on the page" }, { "source": "Frequently asked questions", "url": "https://www.sbsc.uk.net/SBSC/Schemes/Construction/Electrical/FAQs/SBSC/Building_Standards/FAQ.aspx?hkey=622f0997-d40d-4f67-8c13-643717f38019", "retrieved_at": "2026-09-12", "reason": "read in full and no accepted figure on the page" }, { "source": "Home", "url": "https://www.select.org.uk/", "retrieved_at": "2026-09-12", "reason": "read in full and no accepted figure on the page" }, { "source": "What to Ask", "url": "https://www.select.org.uk/SELECT/Find-a-member/What-to-Ask/SELECT/Website/Find_Member/What-to-Ask.aspx?hkey=b0d75edf-63a0-4f38-93b2-33ac2f831420", "retrieved_at": "2026-09-12", "reason": "every candidate on the page was refused" }, { "source": "Buy Standards: Discover BSI Knowledge", "url": "https://www.bsigroup.com/en-GB/products-and-services/standards/", "retrieved_at": "2026-09-11", "reason": "every candidate on the page was refused" }, { "source": "Competent Person Scheme Guide: NICEIC, NAPIT", "url": "https://www.elec-mate.com/guides/competent-person-scheme-guide", "retrieved_at": "2026-09-12", "reason": "every candidate on the page was refused" }, { "source": "Competent Registered Electrician", "url": "https://www.electricalsafetyroundtable.co.uk/safety-guidance/competent-registered-electrician.aspx", "retrieved_at": "2026-09-12", "reason": "read in full and no accepted figure on the page" }, { "source": "Competent person self-certification schemes - Where to get approval - Planning P", "url": "https://www.planningportal.co.uk/applications/building-control-applications/building-control/how-to-get-approval/where-to-get-approval/competent-person-self-certification-schemes/", "retrieved_at": "2026-09-12", "reason": "read in full and no accepted figure on the page" }, { "source": "Building Regulations: Checking for safety - Electrics - Planning Portal", "url": "https://www.planningportal.co.uk/permission/common-projects/electrics/building-regulations-checking-for-safety/", "retrieved_at": "2026-09-12", "reason": "read in full and no accepted figure on the page" }, { "source": "Find your local tradesperson • TrustMark", "url": "https://www.trustmark.org.uk/find-a-tradesman", "retrieved_at": "2026-09-12", "reason": "read in full and no accepted figure on the page" }, { "source": "every authorised competent person scheme's own register", "url": "https://www.gov.uk/guidance/competent-person-scheme-current-schemes-and-how-schemes-are-authorised", "retrieved_at": "2026-09-11", "reason": "read in full and no accepted figure on the page" } ], "sources": [ { "url": "https://find-and-update.company-information.service.gov.uk/company/08840127", "label": "ELECTRICAL COMPETENT PERSON SCHEME OPERATORS LIMITED overview - Find and update", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.dorsetcouncil.gov.uk/w/using-a-competent-person-scheme", "label": "Just a moment...", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.gov.scot/publications/regulation-electricians-scotland/pages/4/", "label": "3. The Evidence - Regulation of electricians in Scotland: research report - gov.", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.gov.uk/building-regulations-competent-person-schemes", "label": "Competent person schemes - GOV.UK", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.gov.uk/guidance/competent-person-scheme-current-schemes-and-how-schemes-are-authorised", "label": "Competent person scheme - current schemes and how schemes are authorised - GOV.U", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://niceic.com/find-a-contractor/", "label": "Find a Registered Electrician or Contractor", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://niceic.com/for-the-trades-1/professional-standards/schemes/rented-sector/", "label": "Rented Sector scheme: apply for Certification", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://search.napit.org.uk/", "label": "NAPIT - Member Search", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.besca.org.uk/", "label": "Building Engineering Services Competent Assessment (BESCA)", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.blueflamecertification.com/", "label": "Blue Flame - Home", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.electricalcompetentperson.co.uk/", "label": "Home", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.electricalcompetentperson.co.uk/About-Us", "label": "About Us", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.napit.org.uk/consumer-advice/Households/", "label": "Households", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.niceic.com/find-a-contractor", "label": "Find a Registered Electrician or Contractor", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.sbsc.uk.net/SBSC/Schemes/Construction/Electrical/FAQs/SBSC/Building_Standards/FAQ.aspx?hkey=622f0997-d40d-4f67-8c13-643717f38019", "label": "Frequently asked questions", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.select.org.uk/", "label": "Home", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.select.org.uk/SELECT/Find-a-member/What-to-Ask/SELECT/Website/Find_Member/What-to-Ask.aspx?hkey=b0d75edf-63a0-4f38-93b2-33ac2f831420", "label": "What to Ask", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.bsigroup.com/en-GB/products-and-services/standards/", "label": "Buy Standards: Discover BSI Knowledge", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.elec-mate.com/guides/competent-person-scheme-guide", "label": "Competent Person Scheme Guide: NICEIC, NAPIT", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.electricalsafetyroundtable.co.uk/safety-guidance/competent-registered-electrician.aspx", "label": "Competent Registered Electrician", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.planningportal.co.uk/applications/building-control-applications/building-control/how-to-get-approval/where-to-get-approval/competent-person-self-certification-schemes/", "label": "Competent person self-certification schemes - Where to get approval - Planning P", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.planningportal.co.uk/permission/common-projects/electrics/building-regulations-checking-for-safety/", "label": "Building Regulations: Checking for safety - Electrics - Planning Portal", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.trustmark.org.uk/find-a-tradesman", "label": "Find your local tradesperson • TrustMark", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.gov.uk/guidance/competent-person-scheme-current-schemes-and-how-schemes-are-authorised", "label": "every authorised competent person scheme's own 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 the estate's 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 23 named sources that could be read published a usable figure; 21 published none and are recorded as not published, never filled in; 1 could not be read (blocked, dead or unreachable) and count nowhere. The headline figures (median, minimum, maximum, quartiles) are over ONE figure per source in count (a source's median where its page yielded several accepted sentences), so N counts sources, never sentences; 26 candidate sentence(s) were refused by a reviewer with the reason recorded. Derivation as chartered: The count of registered certifying contractors per postcode area, per authorised scheme, read across every government-authorised competent person scheme at once - a density figure (registrants per 100,000 households) that no single scheme can publish, because each scheme sees only its own members and the cross-scheme register does not aggregate. Beside it: which schemes each nation authorises (England and Wales through MHCLG's list, Scotland through the Scottish building standards certification schemes, Northern Ireland through neither), how the roster changed after ELECSA's registrations moved into NICEIC, and the single route a landlord has to check that the person who signed their certificate was registered on the day they signed it.", "embed": "

1,062 to 20,000 count

2 published figures, Certifying Contractor Register, across 2 sources, read 15 September 2026

Source: Asbestos Survey Cost Certifying Contractor Register
" }