---
title: "Decarbonisation Project (NPG)"
ocid: "ocds-h6vhtk-05d6bc"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-05d6bc"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-05d6bc.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-05d6bc.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "NATIONAL PORTRAIT GALLERY"
published: "2025-12-22"
---

# Decarbonisation Project (NPG)

Buyer: NATIONAL PORTRAIT GALLERY  
Current stage: Award  
OCID: ocds-h6vhtk-05d6bc

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[Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-05d6bc.json)

## Summary

The National Portrait Gallery, based in London, initiated a procurement process for a significant decarbonisation project aimed at enhancing its energy efficiency and sustainability. This open competition, valued at £4,800,000 gross, falls under the 'works' category and was organised below the threshold limit. Key dates included the tender period, which closed on 26th November 2025, and the envisaged contract period running from 5th January 2026 to 31st March 2028. The Gallery sought an innovative principal contractor to deliver environmentally responsible infrastructure improvements, representing the project's focus on decarbonisation. The procurement stage has now been completed, with the contract awarded to Capri Mechanical Services Ltd as of 22nd December 2025.

This tender presents a significant opportunity for businesses operating within the construction and engineering sectors, particularly those specialising in sustainable building practices and energy efficiency upgrades. The emphasis on quality and social value, alongside pricing criteria, highlights the procurement's suitability for established firms experienced in handling large-scale projects with a commitment to reducing carbon footprints. Companies offering a blend of engineering design and electrical installation services for arts and cultural buildings, especially those qualified to compete in open competitions, are well-positioned to leverage such opportunities to drive business growth.

## Notice

National Portrait Gallery has had a Decarbonisation Plan produced. The work to produce this was funded by the Salix Low Carbon Skills Fund. The Gallery is seeking to appoint an experienced and innovative principal contractor to deliver a significant programme of decarbonisation works. To view this notice, please click here: https://www.delta-esourcing.com/delta/viewNotice.html?noticeId=1002868521

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/085429-2025 |
| Notice type | UK6 - Contract Award Notice |
| Procurement type | Standard |
| Procurement category | Works |
| Procurement method | Open |
| Procurement method details | Below threshold - open competition |
| Tender suitability | SME |
| Awardee scale | Large |
| All stages | Tender, Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 22 Dec 2025 |
| Submission deadline | 26 Nov 2025 |
| Future notice date | Not specified |
| Award date | 22 Dec 2025 |
| Contract period | 12 Jan 2026 - 3 Apr 2026 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £4,000,000 |
| Lots value | £4,000,000 |
| Awards value | £86,000 |
| Contracts value | Not specified |

## Status

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

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | NATIONAL PORTRAIT GALLERY |
| Locality | LONDON |
| Post town | Central London |
| Postcode | WC2H 0HE |
| Country | England |
| ITL 1 | TLI London |
| ITL 2 | TLI3 Inner London - West |
| ITL 3 | TLI35 Westminster and City of London |
| Local authority | Westminster |
| Electoral ward | St James's |
| Westminster constituency | Cities of London and Westminster |
| Delivery location | Not specified |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | CAPRI MECHANICAL SERVICES |

## CPV Codes

### Divisions

- 44 - Construction structures and materials; auxiliary products to construction (except electric apparatus)
- 45 - Construction work
- 71 - Architectural, construction, engineering and inspection services

### Codes

- 44115000 - Building fittings
- 44115800 - Building internal fittings
- 45210000 - Building construction work
- 45212300 - Construction work for art and cultural buildings
- 45212310 - Construction work for buildings relating to exhibitions
- 45300000 - Building installation work
- 45310000 - Electrical installation work
- 71320000 - Engineering design services
- 71321000 - Engineering design services for mechanical and electrical installations for buildings

## Release History

- 22 Dec 2025 at 14:05 - Award - UK6 - Contract Award Notice - https://www.find-tender.service.gov.uk/Notice/085429-2025
- 29 Oct 2025 at 19:05 - Tender - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/069578-2025

## Documents

- https://www.find-tender.service.gov.uk/Notice/085429-2025
  22nd December 2025 - Contract award notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/069578-2025
  29th October 2025 - Tender notice on Find a Tender

## Notice URLs

- https://www.delta-esourcing.com/delta/mainMenu.html
- https://www.delta-esourcing.com/delta/viewNotice.html?noticeId=1002868521
- 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-05d6bc. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-05d6bc.json.