Source: https://tendernation.io/opportunities/01a13bc7-f8b3-701b-bac0-3398c9183dca/harwich-office-upgrades-hvac pending GB open procedure # Harwich Office Upgrades - HVAC [Trinity House](https://tendernation.io/buyers/trinity-house) Estimated value Not stated Published 19 Nov 2025 Deadline Rolling deadline ## 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 Trinity House have HVAC systems installed in two buildings, known as the main office (3 floors) and buoy yard (2 floors), at their Harwich site. These systems have been operational since 2006 and are maintained on a regular basis. The system consists of a mix of floor wide arrangements with fan coil units in the roof space as well as dedicated room based independent units. All items are from the Daikin range and can be centrally controlled and configured via a portal. These works are for the supply of all the necessary equipment on a like-for-like basis to meet the original building performance (cooling / heating) of all the HVAC systems across two buildings, excluding the two IT server rooms. In addition, all equipment is to be installed, with full co-ordination, noting the need to maintain the working office environment. This will need the full management, installation, and configuration of the systems, with an acceptance test, as well as training on supervisory local and remote platforms. Some of the goals: ### Undertake the necessary role for CDM Peformance efficiency improvement with a heating SCOP of 5.5 and cooling SEER of 7.5. Improvement in temperature control with a ±1°C deadband ### Identical level of redundancy Cyber security assessment and mitigation provided ### Timescales Hardware delivery – by end March 2026 ### Installation – May to Oct 2026 ### Commissioning – May to Oct 2026 ### Customer acceptance testing – Nov 2026 For more information about this opportunity, please visit the Delta eSourcing portal at: [trinityhouse.delta-esourcing.com](https://trinityhouse.delta-esourcing.com/tenders/UK-UK-LONDON:-Heating%2C-ventilation-and-air-conditioning-installation-work./P8K79HYZ2N) To respond to this opportunity, please click here: [trinityhouse.delta-esourcing.com/respond/P8K79HYZ2N](https://trinityhouse.delta-esourcing.com/respond/P8K79HYZ2N) Read full description ## CPV classification Heating, ventilation and air-conditioning installation work Source Find a Tender (UK) · Notice ocds-h6vhtk-05e478-2025-11-19T14:05:17Z [View official notice](https://www.find-tender.service.gov.uk/Notice/ocds-h6vhtk-05e478-2025-11-19T14:05:17Z) 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 Trinity House: past awards and live tenders](https://tendernation.io/buyers/trinity-house) [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) [Hdc-1714 wadkins pavilion refurbishment · Harborough District Council · 39 days left · 27 Nov 2026](https://tendernation.io/opportunities/01a155bf-f664-72f9-9823-a85d6cddbdc6/hdc-1714-wadkins-pavilion-refurbishment) [Design, supply, and Installation of Newbiggin Skatepark Extension · Newbiggin Town Council · 35 days left · 23 Nov 2026](https://tendernation.io/opportunities/01a15552-19a2-7348-a5cc-3f5ae51ef934/design-supply-and-installation-of-newbiggin-skatepark-extension) [Tender for the design, supply, delivery and installation of a modular UNIT and associated works at ARC healthy living, irvinestown. peaceplus funded upgrade works · Fermanagh and Omagh District Council · 14 days left · 2 Nov 2026](https://tendernation.io/opportunities/01a15552-1b74-73ec-a6f6-a1af37959997/tender-for-the-design-supply-delivery-and-installation-of-a-modular-unit-and-a) [ESPH AB RDC Sidley Depot (ESPH753) · Rother District Council · 49 days left · 7 Dec 2026](https://tendernation.io/opportunities/01a15552-1d19-7155-8fe0-0d917105fca8/esph-ab-rdc-sidley-depot-esph753) [Demolition, Design and Construction of Howard's Lane Public Toilets, Howard's Lane, Wareham · Wareham Town Council · 88 days left · 15 Jan 2027](https://tendernation.io/opportunities/01a15552-1d8a-7277-bc5b-edc9a127ee5b/demolition-design-and-construction-of-howards-lane-public-toilets-howards-la)