---
title: "Guildhall - Chiller Replacement"
ocid: "ocds-h6vhtk-060d88"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-060d88"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-060d88.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-060d88.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "CITY OF LONDON CORPORATION"
published: "2026-01-23"
---

# Guildhall - Chiller Replacement

Buyer: CITY OF LONDON CORPORATION  
Current stage: Award  
OCID: ocds-h6vhtk-060d88

[View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-h6vhtk-060d88)  
[Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-060d88.json)

## Summary

The City of London Corporation, acting as the buying organisation, is overseeing the "Guildhall - Chiller Replacement" project, classified under the industry category of ventilation and air-conditioning installation work. This procurement falls under the works category and is carried out within the UKI region, specifically at the Guildhall in London. The process is currently at the contract update stage, with the original contract signed on 14th November 2023. The contracting period is from 25th March 2024 to 6th March 2026, following a contract amendment due to unforeseen delays related to the Building Safety Act 2022. The project aims to replace the North Wing chillers and connect the new system to the existing structure to improve efficiency.

This tender presents substantial opportunities for businesses specialising in construction, HVAC systems, and large-scale chiller installations. Companies with expertise in designing, constructing, and commissioning complex engineering projects will find this tender ideal for showcasing their capabilities. With a contract value of £4,521,944, the project requires a contractor capable of delivering detailed design and construction within the outlined schedule. Such projects not only provide lucrative business growth chances but also establish firms as leaders in infrastructure expansion, especially within historic or landmark buildings. SMEs, like the supplier Briggs & Forrester Special Projects Limited, are actively participating, demonstrating the project's accessibility to various business scales.

### Lot Information

Lot 1

Please note that this is a modification notice and not an open opportunity. The City of London Corporation (the City) invited Tenders for the provision of the design, construction, strip out and connection and completion of the replacement of the Guildhall chillers, to provide a centralised chiller system. The Contractor is required to work up the client design information (RIBA Stage 3) to construction detail to meet the start on site date. The Contractor is to remove the five existing North Wing chillers including the Cooling tower and install in their place six new larger chillers. The capacity of the six new chillers will be sufficient to serve the entire Guildhall Building allowing the West Wing chillers and associated cooling towers to be de-commissioned and removed. A new chilled water link will be installed at roof level between the North Wing and West/East Wings.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/006271-2026 |
| Notice type | Award Notice |
| Procurement type | Standard |
| Procurement category | Works |
| Procurement method | Not Specified |
| Procurement method details | Not specified |
| Tender suitability | Not specified |
| Awardee scale | SME |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 23 Jan 2026 |
| Submission deadline | Not specified |
| Future notice date | Not specified |
| Award date | 14 Nov 2023 |
| Contract period | 25 Mar 2024 - 6 Mar 2026 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | £4,521,944 |

## Status

| Field | Value |
| --- | --- |
| Tender status | Not specified |
| Lots status | Not specified |
| Awards status | Active |
| Contracts status | Active |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | CITY OF LONDON CORPORATION |
| Locality | LONDON |
| Post town | Central London |
| Postcode | EC2P 2EJ |
| Country | England |
| ITL 1 | TLI London |
| ITL 2 | TLI4 Inner London - East |
| ITL 3 | TLI43 Haringey and Islington |
| Local authority | Islington |
| Electoral ward | Clerkenwell |
| Westminster constituency | Islington South and Finsbury |
| Delivery location | TLI London |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | BRIGGS & FORRESTER SPECIAL PROJECTS |

## CPV Codes

### Divisions

- 45 - Construction work

### Codes

- 45331200 - Ventilation and air-conditioning installation work

## Release History

- 23 Jan 2026 at 14:46 - AwardUpdate - Award Notice - https://www.find-tender.service.gov.uk/Notice/006271-2026

## Notice URLs

- http://www.cityoflondon.gov.uk

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-060d88. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-060d88.json.