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HOLYROOD REPLACEMENT WORKS (HEAT EFFICIENCY SCHEME) - SCC-SMS-0585

SOUTHAMPTON CITY COUNCIL

This public procurement record has 1 release in its history.

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30 Jul 2026 at 14:17

Award Notice
Summary of the contracting process

Southampton City Council procured major heating-system replacement works for the Holyrood site under its heat-efficiency scheme. The main requirement is to replace the existing heat network with a two-pipe system served by gas boilers, delivered to the required technical standards and in a safe, consistent and cost-effective manner. The contractor is also required to carry out new installations when needed during the contract. The work covers heating construction, gas-fitting installation, gas-appliance maintenance and related repair services, including gas heaters (CPV 39721411). Southampton City Council is the buying organisation. The requirement is classified as works and is intended for delivery in connection with the Council’s Holyrood facilities.

The procurement has been awarded following an open procedure above the relevant threshold. The contract was awarded to CLC Contractors Limited on 3 October 2025. The awarded value is £7,000,000, inclusive of the stated Phase 1 requirement and the possible Phase 2 scope. The contract period runs from 20 October 2025 to 31 December 2027. The tender deadline was 12 August 2025 at 2pm. The Council reserved the right to extend the appointment for Phase 2 design-and-build works, potentially involving external pipework replacement and boiler-room upgrades, with an indicated potential value of £2.5 million to £5 million. Phase 1 was described as approximately £1.1 million. The opportunity was not classified as suitable for SMEs or voluntary, community and social enterprises.

This award indicates demand from Southampton City Council for contractors able to deliver complex heating-infrastructure replacement rather than isolated maintenance call-outs. A credible future supplier would need experience designing and installing two-pipe heat networks, integrating gas boilers, replacing or extending associated pipework, upgrading boiler rooms and completing gas-fitting works safely within operational facilities. The requirement also favours organisations able to provide responsive installation work alongside the core project, manage several technical disciplines under one appointment and maintain consistent programme, quality and cost control. Relevant gas-appliance maintenance and gas-meter repair capability would strengthen a supplier’s position. The Council’s decision to award the work to an established contractor, and its exclusion of SMEs and VCSEs from the stated suitability assessment, points to the capacity, resources and delivery assurance expected for comparable requirements.

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Notice Information

Notice Title

HOLYROOD REPLACEMENT WORKS (HEAT EFFICIENCY SCHEME) - SCC-SMS-0585

Notice Description

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. Additional information: Phase 1 value approximately PS1.1m Potential Phase 2 approximate value PS2.5 - PS5m if required

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-b5fd17-ffba248d-c8c5-4e6a-9a54-0600b5a89479
Publication Source
Contracts Finder
Latest Notice
https://www.contractsfinder.service.gov.uk/Notice/e096a165-216f-426b-9838-7ee9f4e85777
Current Stage
Award
All Stages
Award

Procurement Classification

Notice Type
Award Notice
Procurement Type
Standard
Procurement Category
Works
Procurement Method
Open
Procurement Method Details
Open procedure (above threshold)
Tender Suitability
Not specified
Awardee Scale
Not specified

Common Procurement Vocabulary (CPV)

CPV Divisions

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

45 - Construction work

50 - Repair and maintenance services

CPV Codes

39721411 - Gas heaters

45232141 - Heating works

45333000 - Gas-fitting installation work

50411200 - Repair and maintenance services of gas meters

50531200 - Gas appliance maintenance services

Notice Value(s)

Tender Value
£7,000,000 £1M-£10M
Lots Value
Not specified
Awards Value
£7,000,000 £1M-£10M
Contracts Value
Not specified

Notice Dates

Publication Date
30 Jul 20262 months ago
Submission Deadline
Not specified
Future Notice Date
Not specified
Award Date
3 Oct 20251 years ago
Contract Period
20 Oct 2025 - 31 Dec 2027 2-3 years
Recurrence
Not specified

Notice Status

Tender Status
Complete
Lots Status
Not Specified
Awards Status
Active
Contracts Status
Not Specified

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
SOUTHAMPTON CITY COUNCIL
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
SOUTHAMPTON
Postcode
SO14 7LY
Postcode Area
Southampton
Country
England
Major Region (ITL 1)
TLJ South East (England)
Basic Region (ITL 2)
TLJ3 Hampshire and Isle of Wight
Small Region (ITL 3)
TLJ32 Southampton
Delivery Location
Not specified
Local Authority
Southampton
Electoral Ward
Bargate
Westminster Constituency
Southampton Itchen

Supplier Information

Number of Suppliers
1
Supplier Name

CLC Contractors Limited

Further Information

Notice Documents

Open Contracting Data Standard (OCDS)

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The Open Contracting Data Standard (OCDS) is a framework designed to increase transparency and access to public procurement data in the public sector. It is widely used by governments and organisations worldwide to report on procurement processes and contracts.

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