Tender

00350-AST Whole House Retrofit Installation Works 2026-2030

STONEWATER LIMITED

This public procurement record has 1 release in its history.

Tender

18 Dec 2025 at 12:05

Summary of the contracting process

Stonewater Limited, a sub-central government public authority based in Whetstone, United Kingdom, is seeking contractors for its '00350-AST Whole House Retrofit Installation Works 2026-2030' programme. This tender, under active status, falls within the refurbishment work industry category and will take place nationally, divided into four regional lots. The procurement is in the tender stage with an open procedure method, adhering to regulations set out in the UKPGA 2023/54. The overall contract value is estimated at £62.2 million, including VAT. Key deadlines include an enquiry period ending on 21st January 2026, a submission deadline on 2nd February 2026, and an anticipated award by 24th March 2026. The contract is set to commence on 11th May 2026 and conclude by 10th May 2030, with options for extensions.

This tender presents a substantial opportunity for businesses specialising in retrofitting and energy-efficient installations, such as insulation, window and door replacements, heating systems, solar PV, and ventilation work. Small and medium-sized enterprises (SMEs) are particularly encouraged to participate, given the tender's suitability criteria allowing for their involvement. Stonewater Limited seeks contractors capable of delivering at least one element of the works through self-delivery, promoting growth for businesses that offer scalable and adaptable solutions. The opportunity to secure up to two lots per supplier allows companies to expand their geographical presence and enhance their portfolio in delivering nationwide retrofit services.

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Notice Title

00350-AST Whole House Retrofit Installation Works 2026-2030

Notice Description

Stonewater would like to appoint suitable contractors to deliver it's 2026-2030 retrofit programme. Our programme is informed by the Net Zero Investment Plan and includes the delivery of retrofit works across multiple funding streams. Works must be carried out in compliance with PAS2035 and PAS2030. The measures to be installed will include but not be limited to: - Insulation - Windows and doors - Heating systems - Solar PV - Ventilation Works will be delivered nationally but split into 4 regional lots. Contractors will be expected to deliver whole house retrofit and at least one element must involve self-delivery. The estimated contract value of PS62.2m (incl VAT) is across all lots. Please see lot information to see how each lot is split value wise over the duration of the first 4 years. For more information about this opportunity, please visit the Delta eSourcing portal at: https://www.delta-esourcing.com/tenders/UK-UK-Whetstone:-Refurbishment-work./6YQFB48758 To respond to this opportunity, please click here: https://www.delta-esourcing.com/respond/6YQFB48758

Lot Information

West (Lot 1)

Lot's are split by geographical location. This lot will provide retrofit works a detailed in the specification and associated documents to properties in the West region.

Renewal: Optional extension period of 12 months + 12 months subject to terms and conditions of contract

South East (Lot 2)

Lot's are split by geographical location. This lot will provide retrofit works a detailed in the specification and associated documents to properties in the South East region.

Renewal: Optional extension period of 12 months + 12 months subject to terms and conditions of contract

South West (Lot 3)

Lot's are split by geographical location. This lot will provide retrofit works a detailed in the specification and associated documents to properties in the South West region.

Renewal: Optional extension period of 12 months + 12 months subject to terms and conditions of contract

East (Lot 4)

Lot's are split by geographical location. This lot will provide retrofit works a detailed in the specification and associated documents to properties in the East region.

Renewal: Optional extension period of 12 months + 12 months subject to terms and conditions of contract

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-05f8eb
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/084298-2025
Current Stage
Tender
All Stages
Tender

Procurement Classification

Notice Type
UK4 - Tender Notice
Procurement Type
Standard
Procurement Category
Works
Procurement Method
Open
Procurement Method Details
Open procedure
Tender Suitability
SME
Awardee Scale
Not specified

Common Procurement Vocabulary (CPV)

CPV Divisions

45 - Construction work


CPV Codes

45453100 - Refurbishment work

Notice Value(s)

Tender Value
£62,200,000 £10M-£100M
Lots Value
£62,200,000 £10M-£100M
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
18 Dec 20252 months ago
Submission Deadline
2 Feb 2026Expired
Future Notice Date
Not specified
Award Date
Not specified
Contract Period
10 May 2026 - 10 May 2030 4-5 years
Recurrence
Not specified

Notice Status

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

Contracting Authority (Buyer)

Main Buyer
STONEWATER LIMITED
Contact Name
Gemma Wheatley
Contact Email
gemma.wheatley@stonewater.org
Contact Phone
+44 1384471065

Buyer Location

Locality
WHETSTONE
Postcode
LE8 6EP
Post Town
Leicester
Country
England

Major Region (ITL 1)
TLF East Midlands (England)
Basic Region (ITL 2)
TLF2 Leicestershire, Rutland and Northamptonshire
Small Region (ITL 3)
TLF22 Leicestershire CC and Rutland
Delivery Location
TLE Yorkshire and The Humber, TLG West Midlands (England), TLH East (England), TLJ South East (England), TLK South West (England)

Local Authority
Blaby
Electoral Ward
North Whetstone
Westminster Constituency
South Leicestershire

Open Contracting Data Standard (OCDS)

View full OCDS Record for this contracting process

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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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                "description": "Tender notice on Find a Tender",
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        "riskDetails": "The parties acknowledge that certain circumstances may arise during the Contract Term which necessitate modifications to the scope, requirements, or coverage of this Contract. Without limitation, such circumstances include, but are not restricted to, the following: - Change in Law (for example Hazards in Social Housing (Prescribed Requirements) (England) Regulations 2025 (\"Awaab's Law\"), Building Safety Act 2022, or Decent Homes standard. * Conditions for Modification: * Trigger: Any amendment, secondary legislation, or statutory instrument issued, introduction, or expansion of prescribed requirements under a regulation or act that directly impacts or materially alters compliance obligations of Stonewater as a landlord. * Known Risk: Legislative reform is anticipated; therefore, modifications may be exercised where changes impose new duties (e.g., mandatory response times, safety case reviews, resident engagement requirements and reporting obligations, or remediation standards) are introduced. * When Exercised: Upon formal enactment of new statutory requirements or publication of binding guidance by the Secretary of State. * Scope of Modification: Limited to adjustments necessary to ensure compliance with the updated legislation while maintaining continuity of contracted services without altering its fundamental nature. It would not be in the publics interest to award another contract due to the time required to re-procure and the associated costs to Stonewater and their customers. - Tenderers should note that while the current scope of this contract reflects the housing stock and operations as they stand at the time of publication, Stonewater acknowledges the potential for future growth. This may include, but is not limited to, the acquisition of additional housing stock or merger with other housing associations. As such, the successful provider may be required to accommodate an increase in the volume or geographical spread of services delivered under this contract, proportionate to the organisation's growth. While the timing and scale of such changes are currently unknown, tenderers are advised to consider flexibility and scalability in their proposals, to ensure capacity to support future expansion should it occur during the lifetime of the contract. - General Safeguards * Modifications must be documented, justified, and approved in writing by the Contracting Authority. * Changes must be proportionate and necessary to ensure continued provision of services. * No modification to the contract can change the estimated value of the contract by more than 50% of the contract value."
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