---
title: "Depot Fire Break & Void Detection Surveys"
ocid: "ocds-h6vhtk-06e2ab"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-06e2ab"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-06e2ab.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-06e2ab.json"
source: "Find A Tender Service"
current_stage: "Tender"
buyer: "Thameslink Southern Great Northern Limited (TSGN)"
published: "2026-08-12"
---

# Depot Fire Break & Void Detection Surveys

Buyer: Thameslink Southern Great Northern Limited (TSGN)  
Current stage: Tender  
OCID: ocds-h6vhtk-06e2ab

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## Summary

Thameslink Southern Great Northern Limited (TSGN) is procuring fire-break and void-detection survey services across several of its railway depots. The work will review existing fire-prevention measures in ceiling and roof voids, including fire stopping, fire breaks and other void-protection arrangements. It will also assess how the existing protection aligns with the current fire alarm system. The required outcome is a considered scope of works for improving fire protection, including fire breaks and fire stopping to existing walls. This is a fire-prevention and fire-protection consultancy and surveying requirement, with associated installation and fireproofing considerations. The work is classified under fire-alarm installation, fire-protection equipment installation, fire-prevention services and fireproofing.

The procurement has reached tender: TSGN invited offers through an open, competitive flexible procedure with three stages. Expressions of interest were due by 11 September 2026 at 23:59, and enquiries closed on 4 September 2026 at 17:00. The estimated value is £450,000 excluding VAT, or £540,000 including VAT. The single contract is scheduled to run from 14 February 2027 to 31 August 2027, with the award decision due by 25 January 2027. Evaluation is weighted 60% for technical responses and 40% for the commercial pricing proposal. Electronic submission is allowed in English through TSGN’s e-sourcing portal: https://gtr.delta-esourcing.com/.

This opportunity suits SMEs with experience surveying fire protection in complex operational buildings, particularly ceiling and roof voids at railway or comparable depot sites. Strong bidders will be able to identify fire breaks, fire-stopping defects and other non-compliances, assess existing protection against fire alarm arrangements, and turn survey findings into a practical, technically sound scope of remedial works. Relevant capability includes fire-prevention assessment, fire-stopping and fireproofing expertise, understanding of building interfaces and the ability to produce clear technical recommendations for subsequent installation work. Suppliers will need sufficient capacity to coordinate surveys across several depots and deliver the required review and scope of works within the defined contract period.

## Notice

It has been highlighted a number of non-compliances in connection with the fire break and void protection of the ceiling voids, Throughout Several of our depots. The project will be to review the existing fire prevention measures currently in place within the ceiling voids noting any associated fire stopping, fire breaks or fire prevention currently in place. Culminating in producing a scope of works for fire protection of the roof void, including fire breaks, fire stopping to any existing walls and a full and considered review of the void protection in line with the current fire alarm system For more information about this opportunity, please visit the eSourcing portal at: https://gtr.delta-esourcing.com/tenders/UK-UK-London:-Fire-alarm-system-installation-work./4E38P8J5KB To respond to this opportunity, please click here: https://gtr.delta-esourcing.com/respond/4E38P8J5KB

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/076807-2026 |
| Notice type | UK4 - Tender Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Open |
| Procurement method details | Competitive flexible procedure |
| Tender suitability | SME |
| Awardee scale | Not specified |
| All stages | Tender |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 12 Aug 2026 |
| Submission deadline | 4 Sep 2026 |
| Future notice date | Not specified |
| Award date | Not specified |
| Contract period | 14 Feb 2027 - 31 Aug 2027 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £450,000 |
| Lots value | £450,000 |
| Awards value | Not specified |
| Contracts value | Not specified |

## Status

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

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | Thameslink Southern Great Northern Limited (TSGN) |
| Locality | LONDON |
| Postcode area | Central London |
| Postcode | EC3R 8AJ |
| Country | England |
| ITL 1 | TLI London |
| ITL 2 | TLI3 Inner London - West |
| ITL 3 | TLI35 Westminster and City of London |
| Local authority | City of London |
| Electoral ward | Bridge |
| Westminster constituency | Cities of London and Westminster |
| Delivery location | TLH25 Central Bedfordshire, TLI London, TLJ2 Surrey, East and West Sussex |

## CPV Codes

### Divisions

- 45 - Construction work
- 51 - Installation services (except software)
- 75 - Administration, defence and social security services

### Codes

- 45312100 - Fire-alarm system installation work
- 45343000 - Fire-prevention installation works
- 45343100 - Fireproofing work
- 51700000 - Installation services of fire protection equipment
- 75251110 - Fire-prevention services

## Release History

- 12 Aug 2026 at 14:05 - Tender - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/076807-2026

## Documents

- https://www.find-tender.service.gov.uk/Notice/076807-2026
  12th August 2026 - Tender notice on Find a Tender

## Notice URLs

- https://gtr.delta-esourcing.com/
- https://gtr.delta-esourcing.com/respond/4E38P8J5KB
- https://gtr.delta-esourcing.com/tenders/UK-UK-London:-Fire-alarm-system-installation-work./4E38P8J5KB
- https://www.legislation.gov.uk/ukpga/2023/54/contents

## 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-h6vhtk-06e2ab. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-06e2ab.json.