---
title: "HOLYROOD REPLACEMENT WORKS (HEAT EFFICIENCY SCHEME)"
ocid: "ocds-h6vhtk-05474a"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-05474a"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-05474a.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-05474a.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "SOUTHAMPTON CITY COUNCIL"
published: "2025-09-19"
---

# HOLYROOD REPLACEMENT WORKS (HEAT EFFICIENCY SCHEME)

Buyer: SOUTHAMPTON CITY COUNCIL  
Current stage: Award  
OCID: ocds-h6vhtk-05474a

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## Summary

Southampton City Council has completed the award process for the "Holyrood Replacement Works (Heat Efficiency Scheme)," which involves replacing an existing heat network with a more efficient two-pipe system powered by gas boilers. The contract is valued at £1,147,672 and will commence on 1st November 2025, concluding on 31st December 2026. The procurement was conducted through an open procedure, attracting four bids, including two from small and medium-sized enterprises (SMEs). Located in Southampton, United Kingdom, this project, categorised under the works industry, offers a significant opportunity for the chosen contractor, C.L.C. Contractors Limited, to execute this governmental infrastructure initiative.

This tender presents substantial opportunities for businesses specialising in gas-fitting installation and heating works. Given the significant scope for Phase 2, which includes potential extensions for designing and building, enterprises that can offer cost-effective and high-quality project management will benefit significantly. SMEs in the region with expertise in external pipework and boiler room upgrades will find this contract particularly appealing, as the council has demonstrated a preference for such firms in the bidding process. The initiative not only underlines the need for technical proficiency but also allows for long-term engagement with a potential extension valued between £2.5m and £5m, creating growth prospects for competent businesses.

## Notice

1.3 We are seeking a contractor for replacing the existing heat network system with a two-pipe system served by gas boilers; all to specified standards and in a timely, consistent, cost effective and safe manner. There will also be a requirement to install new installations as required during the course of the Contract period. 1.4 The term of the contract shall be as soon as possible until November 2026 as further defined within the tender responses 1.5 Southampton City Council reserves the right, to extend the Contractor's appointment for both duration and value to include Phase 2 Design and Build Works with a potential value for phase 2 of between PS2.5 - PS5m. Phase 2 is currently anticipated to comprise, but shall not be limited to, the replacement of external pipework and upgrades to the boiler room. Such extension shall be subject to mutually agreed terms and conditions, including scope, programme, and remuneration with the incumbent provider required to complete a return for both methodology and price (with the fixed prices demonstrated through this tender) so that the Authority can establish if progression to Phase 2 is right for the Authority at that time. The Authority also reserve the right to not proceed with Phase 2 at all or to establish completion of Phase 2 outside of this contract via a tender.

### Lot Information

Lot 1

Options: Southampton City Council reserves the right, to extend the Contractor's appointment for both duration and value to include Phase 2 Design and Build Works with a potential value for phase 2 of between PS2.5 - PS5m. Phase 2 is currently anticipated to comprise, but shall not be limited to, the replacement of external pipework and upgrades to the boiler room. Such extension shall be subject to mutually agreed terms and conditions, including scope, programme, and remuneration with the incumbent provider required to complete a return for both methodology and price (with the fixed prices demonstrated through this tender) so that the Authority can establish if progression to Phase 2 is right for the Authority at that time. The Authority also reserve the right to not proceed with Phase 2 at all or to establish completion of Phase 2 outside of this contract via a tender.

Renewal: Southampton City Council reserves the right, to extend the Contractor's appointment for both duration and value to include Phase 2 Design and Build Works with a potential value for phase 2 of between PS2.5 - PS5m. Phase 2 is currently anticipated to comprise, but shall not be limited to, the replacement of external pipework and upgrades to the boiler room. Such extension shall be subject to mutually agreed terms and conditions, including scope, programme, and remuneration with the incumbent provider required to complete a return for both methodology and price (with the fixed prices demonstrated through this tender) so that the Authority can establish if progression to Phase 2 is right for the Authority at that time. The Authority also reserve the right to not proceed with Phase 2 at all or to establish completion of Phase 2 outside of this contract via a tender.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/058055-2025 |
| Notice type | UK6 - Contract Award Notice |
| Procurement type | Standard |
| Procurement category | Works |
| Procurement method | Open |
| Procurement method details | Open procedure |
| Tender suitability | SME |
| Awardee scale | Large |
| All stages | Tender, Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 19 Sep 2025 |
| Submission deadline | 22 Jul 2025 |
| Future notice date | Not specified |
| Award date | 18 Sep 2025 |
| Contract period | 1 Nov 2025 - 31 Dec 2026 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £7,500,000 |
| Lots value | £7,500,000 |
| Awards value | £1,148,060 |
| 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 | SOUTHAMPTON CITY COUNCIL |
| Locality | SOUTHAMPTON |
| Post town | Southampton |
| Postcode | SO14 7LY |
| 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 | TLJ32 Southampton |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | C.L.C. CONTRACTORS |

## CPV Codes

### Divisions

- 39 - Furniture (incl. office furniture), furnishings, domestic appliances (excl. lighting) and cleaning products
- 45 - Construction work

### Codes

- 39721411 - Gas heaters
- 45232141 - Heating works
- 45333000 - Gas-fitting installation work

## Release History

- 19 Sep 2025 at 10:41 - Award - UK6 - Contract Award Notice - https://www.find-tender.service.gov.uk/Notice/058055-2025
- 12 Jun 2025 at 09:11 - Tender - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/031772-2025

## Documents

- https://www.find-tender.service.gov.uk/Notice/058055-2025
  19th September 2025 - Contract award notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/031772-2025
  12th June 2025 - Tender notice on Find a Tender
- https://supplierlive.proactisp2p.com/Account/Login
  Proactis home page project reference HOLYROOD REPLACEMENT WORKS (HEAT EFFICIENCY SCHEME) REQ/1000381

## Notice URLs

- http://www.clcgroup.com
- http://www.southampton.gov.uk
- https://supplierlive.proactisp2p.com/Account/LoginHOLYROODREPLACEMENTWORKS(HEATEFFICIENCYSCHEME)REQ/1000381
- 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-05474a. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-05474a.json.