---
title: "WP6102 - Water Treatment for Cooling Towers - intrusive survey & design (All Terminals)"
ocid: "ocds-b5fd17-f01630fe-d08f-431f-b2e4-a56269d08acb"
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markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-f01630fe-d08f-431f-b2e4-a56269d08acb.md"
json_url: "https://d3tenders.com/contract/ocds-b5fd17-f01630fe-d08f-431f-b2e4-a56269d08acb.json"
source: "Contracts Finder"
current_stage: "Tender"
buyer: "COSTAIN LIMITED (H7-HEATHROW)"
published: "2025-10-16"
---

# WP6102 - Water Treatment for Cooling Towers - intrusive survey & design (All Terminals)

Buyer: COSTAIN LIMITED (H7-HEATHROW)  
Current stage: Tender  
OCID: ocds-b5fd17-f01630fe-d08f-431f-b2e4-a56269d08acb

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## Summary

The procurement process led by Costain Limited (H7-Heathrow) is currently in the tender stage for the project titled "WP6102 - Water Treatment for Cooling Towers - intrusive survey & design (All Terminals)." This contract pertains to the engineering and construction category, specifically focused on drinking-water treatment plant construction. The project location is London, United Kingdom, and the deadline for tender submissions is set for 22nd October 2025. The opportunity involves an estimated contract value of up to £1,000,000, with services expected to commence on 1st April 2026 and conclude by the end of October 2026.

This tender presents significant business growth opportunities, especially for companies specialising in engineering design services, project and design preparation, and construction work related to water treatment facilities. Small and medium enterprises (SMEs) and voluntary, community, and social enterprises (VCSEs) are explicitly encouraged to participate, making it an ideal opportunity for businesses looking to expand their portfolio in environmental and engineering services. The emphasis on connecting digital flow meters to a Building Management System also opens prospects for businesses with expertise in smart building technologies.

## Notice

This scope covers intrusive surveys to determine the required replacement of faulty and end-of-life water treatment and pre-treatment assets for the condenser water circuits which serve the cooling towers. The scope also covers the survey and design for digital flow meters to be connected to the Honeywell Building Management System (BMS).

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Contracts Finder |
| Latest notice | https://www.contractsfinder.service.gov.uk/Notice/b0b88df5-78f1-4300-9687-776a06dc802e |
| Notice type | Tender Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Not Specified |
| Procurement method details | Not specified |
| Tender suitability | SME, VCSE |
| Awardee scale | Not specified |
| All stages | Tender |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 16 Oct 2025 |
| Submission deadline | 22 Oct 2025 |
| Future notice date | Not specified |
| Award date | Not specified |
| Contract period | 31 Mar 2026 - 31 Oct 2026 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £1,000,000 |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | Not specified |

## Status

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

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | COSTAIN LIMITED (H7-HEATHROW) |
| Locality | MAIDENHEAD |
| Post town | Slough |
| Postcode | SL6 4UB |
| Country | England |
| ITL 1 | TLJ South East (England) |
| ITL 2 | TLJ1 Berkshire, Buckinghamshire and Oxfordshire |
| ITL 3 | TLJ15 Berkshire East |
| Local authority | Windsor and Maidenhead |
| Electoral ward | Oldfield |
| Westminster constituency | Maidenhead |
| Delivery location | TLI London |

## CPV Codes

### Divisions

- 22 - Printed matter and related products
- 34 - Transport equipment and auxiliary products to transportation
- 45 - Construction work
- 71 - Architectural, construction, engineering and inspection services
- 90 - Sewage, refuse, cleaning and environmental services

### Codes

- 22314000 - Designs
- 34632100 - Mechanical signalling
- 45252126 - Drinking-water treatment plant construction work
- 45252127 - Wastewater treatment plant construction work
- 71242000 - Project and design preparation, estimation of costs
- 71320000 - Engineering design services
- 90733400 - Surface water treatment services

## Release History

- 16 Oct 2025 at 08:10 - Tender - Tender Notice - https://www.contractsfinder.service.gov.uk/Notice/b0b88df5-78f1-4300-9687-776a06dc802e

## Documents

- https://www.contractsfinder.service.gov.uk/Notice/b0b88df5-78f1-4300-9687-776a06dc802e
  16th October 2025 - Opportunity notice on Contracts Finder
- https://www.competefor.com/business/viewOpportunityDetailsSupplier.html?id=101241008
  Please follow this link to view the notice.

## Provenance

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