Tender

WP6101 - Water Treatment for LTHW and CHW Closed Loop Systems - Intrusive surveys (Terminal 2)

COSTAIN LIMITED (H7-HEATHROW)

This public procurement record has 1 release in its history.

Tender

16 Oct 2025 at 08:10

Tender Notice
Summary of the contracting process

The public procurement process for "WP6101 - Water Treatment for LTHW and CHW Closed Loop Systems - Intrusive surveys (Terminal 2)" is initiated by Costain Limited (H7-Heathrow). This tender involves conducting intrusive surveys to assess the condition of assets related to Secondary Chilled Water and Low Temperature Hot Water systems, specifically targeting Pressurisation Units and Automatic Air Vents. The procurement relates to the industry category of water treatment plant construction within the services domain and is part of active tendering. Located in London, United Kingdom, the process's tender stage began with a publication date of 16th October 2025, and proposals are expected by the tender period end date of 22nd October 2025.

This tender offers significant opportunities for business growth, particularly for small and medium enterprises (SMEs) and voluntary community social enterprises (VCSEs) specialising in engineering design, project cost estimation, and construction work related to water treatment facilities. Given the contract's estimated value of £250,000 and its relevance to both drinking water and wastewater treatment plant construction, businesses operating in the environmental and construction sectors are well-suited to compete. The procurement method encourages innovative solutions and expertise in surface water treatment, aligning with the strategic needs of Costain Limited and potentially opening pathways for further collaborations.

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Notice Information

Notice Title

WP6101 - Water Treatment for LTHW and CHW Closed Loop Systems - Intrusive surveys (Terminal 2)

Notice Description

This scope covers intrusive surveys to determine the condition of assets on the Secondary Chilled Water (CHW) and Low temperature hot water (LTHW) systems, specifically the Pressurisation Units (PUs) and Automatic Air Vents (AAVs). Whilst surveying advise on recommended repairs or replacement of other faulty assets via non-intrusive survey (e.g. Dosing Pots, Side Stream Filters, Buffer Vessels and Pumpsets)

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-b5fd17-4291aed8-fbf3-4f42-92bc-ffd0cc9e2495
Publication Source
Contracts Finder
Latest Notice
https://www.contractsfinder.service.gov.uk/Notice/cc56f8f0-4526-4251-b9cb-c70c96521c65
Current Stage
Tender
All Stages
Tender

Procurement Classification

Notice Type
Tender Notice
Procurement Type
Standard
Procurement Category
Services
Procurement Method
Not Specified
Procurement Method Details
Tender Suitability
SME, VCSE
Awardee Scale
Not specified

Common Procurement Vocabulary (CPV)

CPV 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

CPV 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

Notice Value(s)

Tender Value
£250,000 £100K-£500K
Lots Value
Not specified
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
16 Oct 20254 months ago
Submission Deadline
22 Oct 2025Expired
Future Notice Date
Not specified
Award Date
Not specified
Contract Period
31 Mar 2026 - 31 Oct 2026 6-12 months
Recurrence
Not specified

Notice Status

Tender Status
Active
Lots Status
Not Specified
Awards Status
Not Specified
Contracts Status
Not Specified

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
COSTAIN LIMITED (H7-HEATHROW)
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
MAIDENHEAD
Postcode
SL6 4UB
Post Town
Slough
Country
England
Major Region (ITL 1)
TLJ South East (England)
Basic Region (ITL 2)
TLJ1 Berkshire, Buckinghamshire and Oxfordshire
Small Region (ITL 3)
TLJ15 Berkshire East
Delivery Location
TLI London
Local Authority
Windsor and Maidenhead
Electoral Ward
Oldfield
Westminster Constituency
Maidenhead

Further Information

Notice Documents

Open Contracting Data Standard (OCDS)

View full OCDS Record for this contracting process

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The Open Contracting Data Standard (OCDS) is a framework designed to increase transparency and access to public procurement data in the public sector. It is widely used by governments and organisations worldwide to report on procurement processes and contracts. 

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