---
title: "NOCS Energy Centre Plant Replacements"
ocid: "ocds-h6vhtk-077428"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-077428"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-077428.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-077428.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "National Oceanography Centre"
published: "2026-09-17"
---

# NOCS Energy Centre Plant Replacements

Buyer: National Oceanography Centre  
Current stage: Award  
OCID: ocds-h6vhtk-077428

[View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-h6vhtk-077428)  
[Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-077428.json)

## Summary

The National Oceanography Centre procured replacement mechanical plant and associated building services works for its Energy Centre in Southampton. The scope covered removal, supply, installation, testing and commissioning of three critical assets: a low-temperature hot-water deaerator, a chilled-water-system pressurisation unit with expansion vessel, and a seawater boll filter. The purpose is to maintain reliable, efficient and resilient heating, cooling and seawater systems after existing equipment reached or approached the end of its economic and operational life. The contractor also had to complete the mechanical, electrical and controls integration needed to make the replacement plant fully operational. This is a works requirement involving heating-plant maintenance, repair and purification-plant equipment.

The procurement is complete and the contract was awarded to MKG Building Services Ltd through a below-threshold limited competition. The contract was signed on 17 September 2026, with delivery scheduled from 12 October 2026 to 6 November 2026. Its value is £38,390.89 excluding VAT and £46,069.07 including VAT. One completed lot covered the full requirement. The award is active and the contract is active. The works were evaluated through the limited competition route; the published information does not set out a separate weighting or scoring basis. The buying organisation is the National Oceanography Centre, and the contract covers plant replacement and integration at its Southampton site.

This requirement indicates demand for specialist building-services contractors able to manage plant replacement in a live or operational energy-centre environment. A credible competitor would need practical expertise in low-temperature hot-water systems, chilled-water pressurisation and expansion vessels, seawater filtration, and the associated mechanical, electrical and building-controls interfaces. The work also calls for end-to-end delivery: removal of obsolete equipment, supply of replacement assets, installation, testing, commissioning and handover of a functioning integrated system. Contractors with experience maintaining heating, cooling and seawater infrastructure, coordinating multiple engineering disciplines, and demonstrating reliable delivery of technically sensitive works would be well placed when comparable requirements from this buyer return to market. The awarded supplier was an SME, indicating a scale accessible to capable smaller building-services businesses.

## Notice

The contract comprises the replacement of three critical plant assets serving the site's heating, cooling and seawater systems. The existing equipment has exceeded, or is approaching the end of, its economic and operational lifespan and requires replacement to maintain system reliability, efficiency and resilience. The works include the removal, supply, installation, testing and commissioning of: One Low Temperature Hot Water (LTHW) Deaerator located on the Ground Floor of the Energy Centre. One Chilled Water System (CHWS) Pressurisation Unit and associated expansion vessel located on Level 4 of the Energy Centre. One Seawater Boll Filter. The contractor will be responsible for all associated mechanical, electrical and controls integration works necessary to achieve full operational functionality of the replacement plant.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/088104-2026 |
| Notice type | UK7 - Contract Details Notice |
| Procurement type | Standard |
| Procurement category | Works |
| Procurement method | Limited |
| Procurement method details | Below threshold - limited competition |
| Tender suitability | Not specified |
| Awardee scale | SME |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 17 Sep 2026 |
| Submission deadline | Not specified |
| Future notice date | Not specified |
| Award date | Not specified |
| Contract period | 12 Oct 2026 - 6 Nov 2026 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | £38,390 |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Complete |
| Awards status | Active |
| Contracts status | Active |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | National Oceanography Centre |
| Locality | SOUTHAMPTON |
| Postcode area | Southampton |
| Postcode | SO14 3ZH |
| Country | England |
| ITL 1 | TLJ South East (England) |
| ITL 2 | TLJ3 Hampshire and Isle of Wight |
| ITL 3 | TLJ32 Southampton |
| Local authority | Southampton |
| Electoral ward | Bargate |
| Westminster constituency | Southampton Itchen |
| Delivery location | Not specified |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | MKG BUILDING SERVICES LTD |

## CPV Codes

### Divisions

- 45 - Construction work

### Codes

- 45252200 - Purification plant equipment
- 45259200 - Purification-plant repair and maintenance work
- 45259300 - Heating-plant repair and maintenance work

## Release History

- 17 Sep 2026 at 11:15 - Award - UK7 - Contract Details Notice - https://www.find-tender.service.gov.uk/Notice/088104-2026

## Documents

- https://www.find-tender.service.gov.uk/Notice/088104-2026
  17th September 2026 - Contract details notice on Find a Tender

## Notice URLs

- http://www.mkgbuildingservices.co.uk
- https://noc.ac.uk/
- 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-077428. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-077428.json.