Source: https://tendernation.io/opportunities/01a13d0c-69eb-7181-9871-6aec74da8bf7/cpt-25-30-decarbonisation-project-mechanical-electrical-engineering-servic awarded GB open procedure Suitable for SMEs # CPT\_25\_30 - Decarbonisation Project - Mechanical & Electrical Engineering Services (C-4014) [National Audit Office](https://tendernation.io/buyers/national-audit-office) Estimated value £66,000 Published 10 Nov 2025 Deadline Closed 1 Jul 2025 ## Who can bid - Buyer says suitable for SMEs The buyer ticked “suitable for SMEs” on the notice. Anyone can still bid. - Buyer says suitable for VCSEs The buyer ticked “suitable for voluntary, community and social enterprises” on the notice. - Small contract value Valued under £135,018 including VAT, the lowest Procurement Act threshold for goods and services. - Open procedure Anyone can submit a full tender; there is no shortlisting stage. [More contracts for small businesses and VCSEs](https://tendernation.io/opportunities/for-small-businesses) ## About this tender The NAO has awarded a contract for a Mechanical and Electrical Engineering Services with expertise in thermographic surveys, net-zero and decarbonisation to decarbonise its headquarters on Buckingham Palace Road, London. This is for a six month contract with the provision to extend for a further 6 months. Initial contract is from 1 October 2025 - 31 March 2026. The final expiry should the contract be extended will be 30 September 2026. The procurement route is Competitive - Non FTS. ## CPV classification Energy-efficiency consultancy services Source Contracts Finder (UK) [View official notice](https://www.contractsfinder.service.gov.uk/notice/a5a2c25e-d8f9-46ad-8902-dc2ea850ece4) 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 National Audit Office: past awards and live tenders](https://tendernation.io/buyers/national-audit-office) [Sector More Architecture, engineering & surveying tenders](https://tendernation.io/sectors/architecture-engineering-surveying) ## More tenders like this [Engineering design services for the construction of civil engineering works – Dokumentace pro povolení záměru stavby č. 9567 Radlická radiála JZM - Smíchov; v úseku MÚK Bucharova – MÚK Jinonice · Hlavní Město Praha · 15 days left · 3 Nov 2026](https://tendernation.io/opportunities/01a15183-0c15-72b2-bb19-c3ab1550e67e/czechia-engineering-design-services-for-the-construction-of-civil-engineering) [Infrastructure works consultancy services – Contrôle extérieur des chaussées · Collectivité européenne d Alsace · 29 days left · 17 Nov 2026](https://tendernation.io/opportunities/01a15183-1730-733b-8247-a32bbbe2211c/france-infrastructure-works-consultancy-services-controle-exterieur-des-chau) [Architectural, construction, engineering and inspection services – Single Party Framework Agreement for Architect Led Integrated Design Team Services for Fire Safety Remediation Works for Dublin City Council · Dublin City Council · 5 days left · 23 Oct 2026](https://tendernation.io/opportunities/01a15183-0a15-7156-849b-5a223dd6d615/ireland-architectural-construction-engineering-and-inspection-services-sin) [Architectural, construction, engineering and inspection services – Būvprojekta izstrāde un autoruzraudzība fasādes siltināšanai kārtās Dzirciema ielā 16, Rīgā – 1.kārta, C korpuss · Rīgas Stradiņa universitāte · 28 days left · 16 Nov 2026](https://tendernation.io/opportunities/01a15183-3915-73d1-83e6-c378f9f7a926/latvia-architectural-construction-engineering-and-inspection-services-buvp) [Technical assistance services – Suivi et gestion de chantiers de réhabilitation de sites pollués · SPAQuE · 16 days left · 3 Nov 2026](https://tendernation.io/opportunities/01a15183-155e-73c2-a593-9e17375422ac/belgium-technical-assistance-services-suivi-et-gestion-de-chantiers-de-rehab) [Engineering design services – Planung GDRMA-HR Mittelhausen, Erfurt · SWE Netz GmbH · 29 days left · 16 Nov 2026](https://tendernation.io/opportunities/01a15183-1b45-71e4-84d1-8ef96006e2cb/germany-engineering-design-services-planung-gdrma-hr-mittelhausen-erfurt)