---
title: "Depot Fire Break & Void Detection Surveys"
ocid: "ocds-h6vhtk-079033"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-079033"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-079033.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-079033.json"
source: "Find A Tender Service"
current_stage: "Tender"
buyer: "Thameslink Southern Great Northern Limited (TSGN)"
published: "2026-10-26"
---

# Depot Fire Break & Void Detection Surveys

Buyer: Thameslink Southern Great Northern Limited (TSGN)  
Current stage: Tender  
OCID: ocds-h6vhtk-079033

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## Summary

Thameslink Southern Great Northern Limited (TSGN) is procuring surveys of fire protection in ceiling and roof voids across its railway depots. The work is to assess existing fire breaks, fire stopping and other fire-prevention measures, and review whether void protection aligns with the current fire alarm system. Suppliers must produce a scope of works for the required roof-void protection, including fire breaks and fire stopping to existing walls. The procurement is divided into three geographical lots: Bedford, Peterborough, Letchworth and Welwyn; London depots including Selhurst, Battersea, Hornsey, Streatham Hill and Cricklewood; and Sussex depots including Brighton, Bognor Regis, Hove, Littlehampton and Horsham.

TSGN invited offers through a competitive flexible procedure, using an initial participation stage followed by an invitation to tender. The enquiry deadline was 20 November 2026 at 16:00, and the expression-of-interest deadline was 27 November 2026 at 17:00. The planned contract period for each lot is 26 April 2027 to 25 April 2028, with award due by 16 April 2027. The gross estimated values are £168,000 for the Bedford and surrounding depots lot, £204,000 for the London lot, and £168,000 for the Sussex lot; the overall stated gross value is £540,000. For each lot, evaluation assigns 60% to technical questions and 40% to the pricing proposal. SMEs are identified as suitable for all three lots.

This opportunity suits fire-protection and fire-safety survey specialists able to inspect depot ceiling and roof voids, assess fire breaks and fire stopping, and examine protection in relation to installed fire alarm systems. Suppliers need to turn survey findings into a considered, practical scope of remedial works, including protection to voids and fire stopping at existing walls. The three separate geographical lots allow suppliers to focus on the Bedford and surrounding depots, London, or Sussex; the buyer has indicated that SMEs are suitable across all lots. Technical quality carries greater evaluation weight than price, so bidders should be prepared to demonstrate a strong technical approach to inspections, assessment and reporting, alongside a competitive pricing proposal. The requirement concerns multiple railway depots within TSGN’s estate. Only the technical and pricing elements of evaluation are described here; the detailed technical questions will determine the evidence bidders need to provide.

## 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./55RTH245YJ To respond to this opportunity, please click here: https://gtr.delta-esourcing.com/respond/55RTH245YJ

### Lot Information

Bedford, Peterborough , Letchworth , Welwyn

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 This lot is for Depots in the Northern Geographical area of TSGNs estate

Selhurst, Battersea , Hornsey, Streatham Hill , Cricklewood

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 This lot is for Depots within the London Area

Brighton , Bognor Regis, Hove , Littlehampton Horsham

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 This lot is for Sussex are depots of the TSGN estate

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/101045-2026 |
| Notice type | UK4 - Tender Notice |
| Procurement type | Standard |
| Procurement category | Works |
| Procurement method | Selective |
| Procurement method details | Competitive flexible procedure |
| Tender suitability | SME |
| Awardee scale | Not specified |
| All stages | Tender |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 26 Oct 2026 |
| Submission deadline | Not specified |
| Future notice date | Not specified |
| Award date | Not specified |
| Contract period | 26 Apr 2027 - 25 Apr 2028 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £540,000 |
| Lots value | £540,000 |
| 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 | TLH2 Bedfordshire and Hertfordshire, TLH24 Bedford, TLH25 Central Bedfordshire, TLI London, TLJ2 Surrey, East and West Sussex, TLJ22 East Sussex CC |

## CPV Codes

### Divisions

- 45 - Construction work
- 75 - Administration, defence and social security services

### Codes

- 45312100 - Fire-alarm system installation work
- 45343000 - Fire-prevention installation works
- 45343100 - Fireproofing work
- 75251110 - Fire-prevention services

## Release History

- 26 Oct 2026 at 13:52 - Tender - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/101045-2026

## Documents

- https://www.find-tender.service.gov.uk/Notice/101045-2026
  26th October 2026 - Tender notice on Find a Tender

## Notice URLs

- https://gtr.delta-esourcing.com/respond/55RTH245YJ
- https://gtr.delta-esourcing.com/tenders/UK-UK-London:-Fire-alarm-system-installation-work./55RTH245YJ
- 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-079033. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-079033.json.