Source: https://tendernation.io/opportunities/01a13bdd-be1c-72dd-82a4-739676d265f1/whc-installations-of-mains-isolator-switches closed GB open procedure # WHC - Installations of Mains Isolator Switches. [Welwyn Hatfield Borough Council](https://tendernation.io/buyers/welwyn-hatfield-borough-council) Estimated value £95,000 Published 11 May 2026 Deadline Closed 12 Jun 2026 ## Who can bid - Below-threshold contract Buyers cannot shortlist bidders on suitability before tenders are in, so everyone gets to submit a bid (except some larger works contracts). [Procurement Act 2023, section 85](https://www.legislation.gov.uk/ukpga/2023/54/section/85) - Open procedure Anyone can submit a full tender; there is no shortlisting stage. ## About this tender Welwyn Hatfield Borough Council (hereinafter referred to as the Council) is seeking tenders from suitably qualified contractors to undertake the Installation of Electricity Mains Isolation Switches within social housing in the Borough of Welwyn Hatfield. Contractors will need to: - Install the isolation switch (Wylex 100amp double pole switch ( REC)) and Meter Tails. - Undertake all the administration required - Supply an NICEIC test certificate. It is imperative that the Contractor holds a valid certificate of registration for a Meter Operation Code of Practice Agreement and will need to provide this as part of their tender submission. ## CPV classification Electrical installation work Installation services of electrical and mechanical equipment Source Find a Tender (UK) · Notice ocds-h6vhtk-06956c-2026-05-11T11:29:31+01:00 [View official notice](https://www.find-tender.service.gov.uk/Notice/ocds-h6vhtk-06956c-2026-05-11T11:29:31+01:00) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. [Track tenders free](https://tendernation.io/register) [Buyer profile Welwyn Hatfield Borough Council: past awards and live tenders](https://tendernation.io/buyers/welwyn-hatfield-borough-council) [Sector More Construction work tenders](https://tendernation.io/sectors/construction-work) ## More tenders like this [Bannister Sports Centre Athletic Track Soft Market Testing Exercise · Harrow Council · 38 days left · 26 Nov 2026](https://tendernation.io/opportunities/01a1540d-d9e4-71cb-ad57-1603e9042fec/bannister-sports-centre-athletic-track-soft-market-testing-exercise) [Building construction work – Budowa budynku mieszkalnego wielorodzinnego wraz z infrastrukturą techniczną w miejscowości Szczucin · KZN SIM Tarnów Sp. z o.o. · 7 days left · 26 Oct 2026](https://tendernation.io/opportunities/01a156a9-d859-7328-9ee6-a304ce645326/poland-building-construction-work-budowa-budynku-mieszkalnego-wielorodzinneg) [Floor-covering work – Universität Leipzig, Leuschnerplatz, Global Hub, Forschungsneubau · Staatsbetrieb Sächsisches Immobilien- und Baumanagement, Zentrale, Zentralstelle Vergabe- und Vertragsmanagement · 3 days left · 22 Oct 2026](https://tendernation.io/opportunities/01a156a9-acfc-73ee-baab-9e699f88521a/germany-floor-covering-work-universitat-leipzig-leuschnerplatz-global-hub) [Demolition work – Rück- und Neubau Lichthochmaste · Hamburg Verkehrsanlagen GmbH · 7 days left · 26 Oct 2026](https://tendernation.io/opportunities/01a156a9-6ef0-7276-94e2-d5fa0cb2d6c7/germany-demolition-work-ruck-und-neubau-lichthochmaste) [Plastering work – Modernisierung und Erweiterung Matthias-Claudius-Heim Würzburg · Diakonisches Werk Würzburg e.V. · 1 day left · 20 Oct 2026](https://tendernation.io/opportunities/01a156a9-e605-706f-8937-7f0ba18339c0/germany-plastering-work-modernisierung-und-erweiterung-matthias-claudius-hei) [Heating plant construction work – Petrašiūnų elektrinės elektrifikacija, įrengiant elektros energijos kaupimo įrenginius, dyzelinį generatorių ir rekonstruojant 6 kV skirstyklą (projektavimas ir rangos darbai) · Akcinė bendrovė „Kauno energija“ (PV) · 7 days left · 26 Oct 2026](https://tendernation.io/opportunities/01a156a9-6f1d-727f-a077-bc25dec93b92/lithuania-heating-plant-construction-work-petrasiunu-elektrines-elektrifikac)