---
title: "Energy Efficiency Retrofit Installation Contractors and Consultants and associated services"
ocid: "ocds-h6vhtk-04e4ce"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-04e4ce"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-04e4ce.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-04e4ce.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "FLAGSHIP HOUSING LIMITED"
published: "2026-05-15"
---

# Energy Efficiency Retrofit Installation Contractors and Consultants and associated services

Buyer: FLAGSHIP HOUSING LIMITED  
Current stage: Award  
OCID: ocds-h6vhtk-04e4ce

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## Summary

The procurement process, initiated by Flagship Housing Limited, involves the establishment of a Dynamic Purchasing System (DPS) for energy efficiency retrofit installation contractors and consultants, along with associated services. This project is located in the East of England and falls under the construction work industry category. The procurement is now at the award stage as of 15th May 2026, with an initial tender stage having started on 20th February 2025. The DPS allows for the issuance of mini-competitions throughout its lifespan, with open access to the Selection Stage, whereby registered bidders are invited to participate. This procurement was conducted under a restricted procedure, a selective method ensuring only qualified participants engage in the tender.

This procurement offers significant opportunities for construction businesses, particularly those experienced in energy efficiency and retrofit services. With a substantial budget allocated for the DPS, businesses can engage in multiple projects over time. Small and medium enterprises (SMEs) may find this opportunity especially beneficial, as the procurement framework accommodates a broad range of suppliers, ensuring a competitive environment that rewards both quality and price. Companies specialising in construction work, electrical and solar installations, or energy efficiency consultancy would be well-suited to benefit from this dynamic purchasing opportunity, positioning themselves for substantial growth through continuous engagement in the sector.

## Notice

Flagship Group is setting up a DPS for Retrofit Installation Contractors and Consultants and associated services. Mini competitions will be issued throughout the life of the DPS. All the bidders registered on the DPS who have passed the Selection Stage will be invited to participate in the mini-competitions. Access to the Selection Stage will be open throughout the life of the DPS. The DPS may be used for any of Flagship Group's subsidiary companies.

### Lot Information

Energy Efficiency Retrofit Installation Contractors

This procurement will establish and maintain a Dynamic Purchasing System (DPS) for energy efficiency retrofit installation works. Additional information: To respond to this opportunity please click here: https://www.delta-esourcing.com/respond/B22QEW5Y98

Energy Efficiency Retrofit Installation Consultants

Energy Efficiency Retrofit Installation Consultants. Additional information: To respond to this opportunity please click here: https://www.delta-esourcing.com/respond/Q9624H8U8F

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/044972-2026 |
| Notice type | Tender Notice |
| Procurement type | Dynamic, Framework |
| Procurement category | Works |
| Procurement method | Selective |
| Procurement method details | Restricted procedure |
| Tender suitability | Not specified |
| Awardee scale | SME |
| All stages | Tender, Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 15 May 2026 |
| Submission deadline | 17 Feb 2030 |
| Future notice date | Not specified |
| Award date | 16 Oct 2025 |
| Contract period | Not specified |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £20,000,000 |
| Lots value | £20,000,000 |
| Awards value | Not specified |
| Contracts value | £31 |

## Status

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

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | FLAGSHIP HOUSING LIMITED |
| Additional buyers | FLAGSHIP HOUSING GROUP |
| Locality | NORWICH |
| Post town | Norwich |
| Postcode | NR1 1PD |
| Country | England |
| ITL 1 | TLH East (England) |
| ITL 2 | TLH5 Norfolk |
| ITL 3 | TLH51 Norwich and East Norfolk |
| Local authority | Norwich |
| Electoral ward | Thorpe Hamlet |
| Westminster constituency | Norwich South |
| Delivery location | TLH East (England) |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | CORNERSTONE (EAST ANGLIA |

## CPV Codes

### Divisions

- 09 - Petroleum products, fuel, electricity and other sources of energy
- 31 - Electrical machinery, apparatus, equipment and consumables; lighting
- 42 - Industrial machinery
- 45 - Construction work
- 50 - Repair and maintenance services
- 71 - Architectural, construction, engineering and inspection services

### Codes

- 09300000 - Electricity, heating, solar and nuclear energy
- 09320000 - Steam, hot water and associated products
- 09323000 - District heating
- 09330000 - Solar energy
- 09331000 - Solar panels
- 09331100 - Solar collectors for heat production
- 09331200 - Solar photovoltaic modules
- 09332000 - Solar installation
- 31000000 - Electrical machinery, apparatus, equipment and consumables; lighting
- 31200000 - Electricity distribution and control apparatus
- 31500000 - Lighting equipment and electric lamps
- 31527260 - Lighting systems
- 31600000 - Electrical equipment and apparatus
- 31680000 - Electrical supplies and accessories
- 42500000 - Cooling and ventilation equipment
- 42511110 - Heat pumps
- 45000000 - Construction work
- 45100000 - Site preparation work
- 45200000 - Works for complete or part construction and civil engineering work
- 45210000 - Building construction work
- 45211310 - Bathrooms construction work
- 45220000 - Engineering works and construction works
- 45232141 - Heating works
- 45260000 - Roof works and other special trade construction works
- 45261211 - Roof-tiling work
- 45261410 - Roof insulation work
- 45262640 - Environmental improvement works
- 45300000 - Building installation work
- 45315300 - Electricity supply installations
- 45320000 - Insulation work
- 45321000 - Thermal insulation work
- 45331000 - Heating, ventilation and air-conditioning installation work
- 45400000 - Building completion work
- 45421110 - Installation of door and window frames
- 45421112 - Installation of window frames
- 45421130 - Installation of doors and windows
- 50000000 - Repair and maintenance services
- 71000000 - Architectural, construction, engineering and inspection services
- 71200000 - Architectural and related services
- 71240000 - Architectural, engineering and planning services
- 71251000 - Architectural and building-surveying services
- 71300000 - Engineering services
- 71314000 - Energy and related services
- 71314300 - Energy-efficiency consultancy services
- 71315000 - Building services
- 71315300 - Building surveying services
- 71321200 - Heating-system design services
- 71500000 - Construction-related services

## Release History

- 15 May 2026 at 13:55 - Award - Award Notice - https://www.find-tender.service.gov.uk/Notice/044972-2026
- 20 Feb 2025 at 12:05 - Tender - Tender Notice - https://www.find-tender.service.gov.uk/Notice/006138-2025

## Notice URLs

- https://www.cornerstonelimited.co.uk/
- https://www.delta-esourcing.com/respond/B22QEW5Y98
- https://www.delta-esourcing.com/respond/Q9624H8U8F
- https://www.delta-esourcing.com/tenders/UK-UK-Norwich:-Construction-work./B22QEW5Y98
- https://www.delta-esourcing.com/tenders/UK-title/B22QEW5Y98
- https://www.flagship-group.co.uk/

## 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-04e4ce. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-04e4ce.json.