Scope
Reference
00350-AST
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 £62.2m (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:
Total value (estimated)
- £62,200,000 including VAT
Above the relevant threshold
Contract dates (estimated)
- 11 May 2026 to 10 May 2030
- Possible extension to 10 May 2032
- 6 years
Description of possible extension:
Optional extension period of 12 months + 12 months subject to terms and conditions of contract
Main procurement category
Works
CPV classifications
- 45453100 - Refurbishment work
Lot constraints
Maximum number of lots a supplier can be awarded: 2
Description of how multiple lots may be awarded:
Tender Submission Rules
Lot Limitation: Bidders may submit tenders for all four (4) lots.
Maximum Awards: No bidder may be awarded more than two (2) lots in total.
If suppliers are bidding for more than 2 lots, they will be asked as part of their bid to provide their Lot Preference Order as part of he their bid.
Full details of the Evaluation and Ranking Process is detailed in Document 1.1 Introduction & MOI.
Not the same for all lots
Contract locations are shown in Lot sections, because they are not the same for all lots.
Lot 1. West (Lot 1)
Description
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.
Lot value (estimated)
- £24,300,000 including VAT
Contract locations
- UKG - West Midlands (England)
Same for all lots
CPV classifications and contract dates are shown in the Scope section, because they are the same for all lots.
Lot 2. South East (Lot 2)
Description
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.
Lot value (estimated)
- £10,500,000 including VAT
Contract locations
- UKJ - South East (England)
Same for all lots
CPV classifications and contract dates are shown in the Scope section, because they are the same for all lots.
Lot 3. South West (Lot 3)
Description
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.
Lot value (estimated)
- £14,800,000 including VAT
Contract locations
- UKK - South West (England)
Same for all lots
CPV classifications and contract dates are shown in the Scope section, because they are the same for all lots.
Lot 4. East (Lot 4)
Description
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.
Lot value (estimated)
- £12,600,000 including VAT
Contract locations
- UKH - East of England
- UKE - Yorkshire and the Humber
Same for all lots
CPV classifications and contract dates are shown in the Scope section, because they are the same for all lots.
Participation
Legal and financial capacity conditions of participation
Lot 1. West (Lot 1)
Lot 2. South East (Lot 2)
Lot 3. South West (Lot 3)
Lot 4. East (Lot 4)
Provided in ITT documents
Technical ability conditions of participation
Lot 1. West (Lot 1)
Lot 2. South East (Lot 2)
Lot 3. South West (Lot 3)
Lot 4. East (Lot 4)
Full technical specification is available with unrestricted access to the ITT pack and pass / fail criteria is provided in Document 3 - Conditions of Participation.
Particular suitability
Lot 1. West (Lot 1)
Lot 2. South East (Lot 2)
Lot 3. South West (Lot 3)
Lot 4. East (Lot 4)
Small and medium-sized enterprises (SME)
Submission
Enquiry deadline
21 January 2026, 4:00pm
Tender submission deadline
2 February 2026, 12:00pm
Submission address and any special instructions
Tenders may be submitted electronically
Yes
Languages that may be used for submission
English
Award decision date (estimated)
24 March 2026
Award criteria
Lot 1. West (Lot 1)
| Name | Description | Type | Weighting |
|---|---|---|---|
| Pricing Submission | Pricing Submission |
Price | 55% |
| Quality Written Bid | Written Submission |
Quality | 45% |
Lot 2. South East (Lot 2)
Lot 3. South West (Lot 3)
Lot 4. East (Lot 4)
| Name | Description | Type | Weighting |
|---|---|---|---|
| ITT Criteria | Pricing Submission |
Price | 55% |
| ITT Criteria | Written Submission |
Quality | 45% |
Other information
Description of risks to contract performance
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.
Conflicts assessment prepared/revised
Yes
Procedure
Procedure type
Open procedure
Contracting authority
Stonewater Limited
- Public Procurement Organisation Number: PVMT-4274-HPBN
Suite C, Lancaster House,, Grange Business Park, Enderby Road
Whetstone
LE8 6EP
United Kingdom
Region: UKF22 - Leicestershire CC and Rutland
Organisation type: Public authority - sub-central government