Published date: 10 July 2025

Last edited date: 11 July 2025

Open future opportunity - This means that the buyer is not yet ready to invite bid applications but early notification has been provided and some dialogue may be possible.


Approach to market date: 15 September 2025

Contract summary

Industry

  • Roof-framing work - 45261100

  • Roof-slating work - 45261212

  • Metal roof-covering work - 45261213

    • Roof repair - 45261910

Location of contract

PO1 3LS

Value of contract

£2,000,000

Procurement reference

tender_498718/1498386

Published date

10 July 2025

Approach to market date

15 September 2025

Contract start date

15 January 2026

Contract end date

15 March 2026

Contract is suitable for SMEs?

Yes

Contract is suitable for VCSEs?

No

Description

The Tenderer should be aware that the works detailed in this package are constrained due to the nature of the location they are to be conducted in. Therefore, completion of a NDA document is required prior to the release of further details.

Project location - HM Naval Base Portsmouth
The Contractor shall be expected to adhere by the HMNB site security requirements, all Contractors and Sub-Contractors shall be BPSS security vetted and will be required to hold the relevant site security passes.

The Contractor shall be expected to hold the following levels of insurance £10m Public Liability, £10m Product Liability, £5m Professional Indemnity, and if successful, to maintain JOSCAR registration and Cyber Essentials certificate.

KBS Maritime - Introduction

KBS Maritime is a joint venture between KBR and BAE Systems, bringing together two global players with a rich heritage of delivering excellence, innovation and reliability. The joint venture will combine the expertise of KBR as a global leader in infrastructure asset management and services with BAE Systems' experience and capability within Portsmouth Naval Base. KBS Maritime are delivering an ambitious, modern and enduring change to the Portsmouth Naval base infrastructure, securing investment in the local community and ensuring fit-for-purpose, world-leading fleet support for the Royal Navy and the UK in the decades ahead.

Part of the UK Ministry of Defence's (MOD) Future Maritime Support Programme (FMSP), KBS Maritime will provide technology-led and data-driven facilities management and dockside services at the base.

Project scope:
1. Conduct roof condition survey as per recommendations provided within KBS Maritime project no. BLD-21-0056.
2. Produce RIBA Stage 4 detailed design from existing package of RIBA Stage 3+ drawings
3. Provide an updated ecology survey.
4. Deliver construction works as per detailed design pack. Summary of works as follows:
- Reconstruction of south elevation and repair of corroded steel frame
- Repair and partial reconstruction of East and West gable ends
- Strengthening of roof structure
5. Delivery proposed to be carried out in consecutive phases as below:
- Southern elevation reconstruction
- West Elevation repairs and roof strengthening
- East Elevation repairs and roof strengthening

Above phasing to ensure minimal disruption to store which is to remain operational throughout. Protection measures to be adopted throughout phases to ensure weather tightness of operational sections of store and contain building works and any dust and debris generated.

Portsmouth City Council planning condition and any Historic England requirements are to be incorporated within the RIBA Stage 4 design.

More information

Attachments

Additional text

: IMPORTANT: To express interest in this opportunity ref ITT BLD0056-04, please return a completed Supplier Questionnaire (SQ) together with the required copies of insurances, certifications and accreditation and Non- Disclosure Agreement (NDA) by emailing SCBasePersonnel@kbsmaritime.com no later than 08/08/25.

Please note, any expression of interest that does not include the completed documentation will be rejected.

How to apply

Follow the instructions given in the description or the more information section.

About the buyer

Address

Victory Building, Portsmouth Naval Base
Portsmouth
PO1 3LS
England

Email

SCBasePersonnel@kbsmaritime.com