---
title: "Chilton E Block Air Handling Unit Replacement Works"
ocid: "ocds-b5fd17-9b582da4-afc8-43c1-bbcf-bb1b26fa2db7"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-9b582da4-afc8-43c1-bbcf-bb1b26fa2db7"
markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-9b582da4-afc8-43c1-bbcf-bb1b26fa2db7.md"
json_url: "https://d3tenders.com/contract/ocds-b5fd17-9b582da4-afc8-43c1-bbcf-bb1b26fa2db7.json"
source: "Contracts Finder"
current_stage: "Award"
buyer: "UK HEALTH SECURITY AGENCY"
published: "2025-09-12"
---

# Chilton E Block Air Handling Unit Replacement Works

Buyer: UK HEALTH SECURITY AGENCY  
Current stage: Award  
OCID: ocds-b5fd17-9b582da4-afc8-43c1-bbcf-bb1b26fa2db7

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## Summary

The UK Health Security Agency has completed a procurement process titled "Chilton E Block Air Handling Unit Replacement Works," classified under heating, ventilation, and air-conditioning installation in the construction works category. The project was designed up to RIBA stage 4, involving the supply, installation, and commissioning of a replacement air handling unit. The procurement was conducted using an open procedure below the threshold, with a total contract value of approximately GBP 1.5 million. The contract period spans from 5th September 2025 to 31st March 2027. The procurement is now in the award stage, with the contract awarded to Btu (Installation & Maintenance) Limited, fittingly located with operations across the British Overseas Territories, Channel Islands, Isle of Man, and the United Kingdom.

This tender presents substantial opportunities for businesses in the construction and HVAC sectors, particularly those equipped with design and build capabilities. Small and medium-sized enterprises are well-positioned to benefit, given the project's suitability for such firms. The successful tenderer, Btu (Installation & Maintenance) Limited, exemplifies the type of business entities that can effectively compete and execute these specialised installation works, promoting growth and expansion in both domestic and potentially international markets covered by the awarding authority's jurisdiction.

## Notice

This contract is for the provision of design and build works for the Chilton E Block Air Handling Unit Replacement. The design is to be complete to RIBA stage 4. On completion of the design, the works required to supply, install and commission the replacement air handling unit will be carried out.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Contracts Finder |
| Latest notice | https://www.contractsfinder.service.gov.uk/Notice/972388ee-ca33-40c2-ac34-56c98da0b044 |
| Notice type | Award Notice |
| Procurement type | Standard |
| Procurement category | Works |
| Procurement method | Open |
| Procurement method details | Open procedure (below threshold) |
| Tender suitability | SME |
| Awardee scale | SME |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 12 Sep 2025 |
| Submission deadline | 11 Feb 2025 |
| Future notice date | Not specified |
| Award date | 4 Sep 2025 |
| Contract period | 4 Sep 2025 - 31 Mar 2027 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £1,508,847 |
| Lots value | Not specified |
| Awards value | £1,508,847 |
| Contracts value | Not specified |

## Status

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

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | UK HEALTH SECURITY AGENCY |
| Locality | LONDON |
| Post town | East London |
| Postcode | E14 4PU |
| Country | England |
| ITL 1 | TLI London |
| ITL 2 | TLI4 Inner London - East |
| ITL 3 | TLI42 Tower Hamlets |
| Local authority | Tower Hamlets |
| Electoral ward | Canary Wharf |
| Westminster constituency | Poplar and Limehouse |
| Delivery location | Not specified |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | BTU (INSTALLATION & MAINTENANCE |

## CPV Codes

### Divisions

- 45 - Construction work

### Codes

- 45331000 - Heating, ventilation and air-conditioning installation work

## Release History

- 12 Sep 2025 at 09:44 - Award - Award Notice - https://www.contractsfinder.service.gov.uk/Notice/972388ee-ca33-40c2-ac34-56c98da0b044

## Documents

- https://www.contractsfinder.service.gov.uk/Notice/972388ee-ca33-40c2-ac34-56c98da0b044
  12th September 2025 - Awarded contract notice on Contracts Finder
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/a706fd9b-a020-4864-a981-9485713eb62d
  Final-BTU-C374691-ChiltonEAHUWorks-Contract-v1.1-Redacted

## 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-b5fd17-9b582da4-afc8-43c1-bbcf-bb1b26fa2db7. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-b5fd17-9b582da4-afc8-43c1-bbcf-bb1b26fa2db7.json.