Source: https://tendernation.io/opportunities/01a13be3-9a96-7004-a556-0f83a28e9a87/boiler-plantroom-refurbishment-works-at-colley-house-uxbridge closed GB open procedure Suitable for SMEs # Boiler Plantroom Refurbishment Works at Colley House, Uxbridge [London Borough of Hillingdon](https://tendernation.io/buyers/london-borough-of-hillingdon) Estimated value £300,000 Published 22 Jul 2026 Deadline Closed 10 Aug 2026 ## Who can bid - Buyer says suitable for SMEs The buyer ticked “suitable for SMEs” on the notice. Anyone can still 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. [More contracts for small businesses and VCSEs](https://tendernation.io/opportunities/for-small-businesses) ## About this tender The London Borough of Hillingdon (the Council) invites tenders from suitably qualified and experienced Boiler Contractors in relation to entering into an agreement for the works of the complete refurbishment of the existing communal boiler plantroom and associated heating infrastructure at Colley House. The works comprise the complete refurbishment of the existing communal boiler plantroom and associated heating infrastructure at Colley House. The Contractor shall provide all labour, materials, plant, equipment, supervision, temporary works, testing, commissioning, certification, documentation, builder's works and resident liaison services necessary to deliver a fully operational heating and hot water system. The works include: - Replacement of the existing boiler plant. - Replacement of associated mechanical and electrical services. - New gas infrastructure and gas safety systems. - New Trend BMS controls. - New plantroom ventilation system. - New water treatment and pressurisation equipment. - Replacement of 84 Heat Interface Units (HIUs) within occupied dwellings. - Removal of redundant equipment and associated builders' works. - Issuing temporary 3kw fan / Oil heaters to residents and Lease Holders if required or total emergency loss of plantroom equipment. All works shall comply with current Building Regulations, British Standards, Gas Safety Regulations, CIBSE Guidance, manufacturers' recommendations and all other statutory requirements. Hillingdon will enter into a contract with the successful Contractor(s) which shall be based on JCT 2024 Minor Works Contract with Contractors Design. Read full description ## CPV classification Boiler installations Boilers Heating-plant repair and maintenance work Boiler installation work Source Find a Tender (UK) · Notice ocds-h6vhtk-06c63a-2026-07-22T09:53:38+01:00 [View official notice](https://www.find-tender.service.gov.uk/Notice/ocds-h6vhtk-06c63a-2026-07-22T09:53:38+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. 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