---
title: "WP3040 - H7 Renewals Steelwork"
ocid: "ocds-b5fd17-513f0f64-3744-42c0-98fb-a0d8e2b01e99"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-513f0f64-3744-42c0-98fb-a0d8e2b01e99"
markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-513f0f64-3744-42c0-98fb-a0d8e2b01e99.md"
json_url: "https://d3tenders.com/contract/ocds-b5fd17-513f0f64-3744-42c0-98fb-a0d8e2b01e99.json"
source: "Contracts Finder"
current_stage: "Tender"
buyer: "COSTAIN LIMITED (H7-HEATHROW)"
published: "2026-03-24"
---

# WP3040 - H7 Renewals Steelwork

Buyer: COSTAIN LIMITED (H7-HEATHROW)  
Current stage: Tender  
OCID: ocds-b5fd17-513f0f64-3744-42c0-98fb-a0d8e2b01e99

[View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-b5fd17-513f0f64-3744-42c0-98fb-a0d8e2b01e99)  
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## Summary

Costain Limited (H7-Heathrow) is seeking a steelworks contractor for the WP3040 - H7 Renewals Steelwork project, categorised under structural steelworks and construction equipment, to take place in London, United Kingdom. This tender falls under the procurement stage, with the tender period closing on 6th April 2026. The contract is set to commence on 1st February 2027 and conclude by 30th June 2027. The task involves structural steel renewal and treatment in confined spaces such as the CTA Tunnel's undercroft, with a focus on circular economy practices. The tender's value ranges from £500,000 to £1,000,000 GBP, offering a significant opportunity for growth to participating businesses.

This procurement presents a lucrative opportunity primarily for SMEs and VCSEs that specialise in structural steelworks, construction machinery, and materials. Companies with expertise in confined space operations, steel treatment, and innovative recycling methods will be well-suited to compete for this tender. The project offers a chance for business expansion through engaging with structural renewal and processes promoting sustainability. Businesses competing for this tender will benefit from establishing a significant relationship with Costain Limited, a reputable player within the construction industry.

## Notice

There is a requirement for a steelworks contractor as part of our H7 Renewals portfolio in the CTA Tunnel: Works will include: - Replacing steelwork - Corroded steelwork treatment - Along undercroft of the tunnel (confined/restricted space) - 5 & half tonne steel in undercroft - Propping side bore from undercroft, swapping out steel - Grouting of baseplates, removing steelwork out - Looking at circular economy/re-purposing steel

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Contracts Finder |
| Latest notice | https://www.contractsfinder.service.gov.uk/Notice/c32f01fc-e204-49a1-ac22-d2f794e55b7b |
| Notice type | Tender Notice |
| Procurement type | Standard |
| Procurement category | Works |
| 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 | 24 Mar 2026 |
| Submission deadline | 6 Apr 2026 |
| Future notice date | Not specified |
| Award date | Not specified |
| Contract period | 1 Feb 2027 - 30 Jun 2027 |
| 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

- 43 - Machinery for mining, quarrying, construction equipment
- 44 - Construction structures and materials; auxiliary products to construction (except electric apparatus)
- 45 - Construction work

### Codes

- 43300000 - Construction machinery and equipment
- 43320000 - Construction equipment
- 44000000 - Construction structures and materials; auxiliary products to construction (except electric apparatus)
- 45223210 - Structural steelworks
- 45262400 - Structural steel erection work

## Release History

- 24 Mar 2026 at 11:50 - Tender - Tender Notice - https://www.contractsfinder.service.gov.uk/Notice/c32f01fc-e204-49a1-ac22-d2f794e55b7b

## Documents

- https://www.contractsfinder.service.gov.uk/Notice/c32f01fc-e204-49a1-ac22-d2f794e55b7b
  24th March 2026 - Opportunity notice on Contracts Finder
- https://www.competefor.com/business/viewOpportunityDetailsSupplier.html?id=109606828
  Please follow this link to view the notice.

## 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-b5fd17-513f0f64-3744-42c0-98fb-a0d8e2b01e99. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-b5fd17-513f0f64-3744-42c0-98fb-a0d8e2b01e99.json.