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 08:00

Tender Notice
Summary of the contracting process

The procurement process, managed by Costain Limited (H7-Heathrow), focuses on intrusive surveys for water treatment systems at Terminal 2, Heathrow. This tender, titled "WP6101 - Water Treatment for LTHW and CHW Closed Loop Systems - Intrusive surveys", falls under the "Drinking-water treatment plant construction work" category, with an emphasis on engineering design services and project preparation. The procurement stage is currently the Tender stage, with critical deadlines around the tender period ending on 22nd October 2025. Situated in London, UK, the contract period is scheduled from 8th January 2026 to 31st October 2026, with a contract value estimated between £150,000 and £250,000.

This tender offers significant business growth opportunities for firms specializing in water treatment and engineering design services. Small and medium enterprises (SMEs) and voluntary, community, and social enterprises (VCSEs) are particularly suited to this contract, as the suitability criteria are inclusive of such organisations. The focus on asset condition surveys and potential design preparation allows businesses to showcase their expertise in non-intrusive assessments and innovative solutions within the water treatment sector. Additionally, companies skilled in handling pressurisation units, air vents, and associated systems could effectively leverage this opportunity to strengthen and expand their service portfolios.

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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-b5fd17-42cdd568-d850-4e6e-a899-db30f7232116
Publication Source
Contracts Finder
Latest Notice
https://www.contractsfinder.service.gov.uk/Notice/c58c4273-a615-4076-9118-e3a73fefda01
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
8 Jan 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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