Scope
Reference
Prj_7019
Description
Southern Water is preparing to procure a single-supplier framework agreement to deliver household and non-household water efficiency audits, including the supply and installation of water-saving devices and delivery of tailored customer engagement services. The supplier will be expected to proactively identify efficiency opportunities and contribute to achieving Ofwat and regulatory water demand reduction targets.
The procurement will use a Competitive Flexible Procedure with negotiation in accordance with the Procurement Act 2023, and will follow a two-stage process, starting with a conditions of participation stage (PQQ).
Commercial tool
Establishes a framework
Total value (estimated)
- £3,300,000 including VAT
Above the relevant threshold
Contract dates (estimated)
- 23 February 2026 to 23 February 2030
- Possible extension to 23 February 2032
- 6 years, 1 day
Description of possible extension:
Optional Extension(s): +1 year (or up to +2 years), subject to performance review and evolving regulatory landscape (e.g., Ofwat targets or PR24/PR29 impacts). This reflects:
The long-term behavioural change and infrastructure work required
The need for partnership and continuity to optimise proactive outreach and device installation
The alignment with multi-year performance commitments (e.g., AMP8/AMP9 planning cycles)
Options
The right to additional purchases while the contract is valid.
Ensuring SW are utilising digital solutions and innovations to maximise water saving potential.
Main procurement category
Services
CPV classifications
- 90713100 - Consulting services for water-supply and waste-water other than for construction
- 71314000 - Energy and related services
- 90400000 - Sewage services
- 71321300 - Plumbing consultancy services
- 65100000 - Water distribution and related services
Contract locations
- UK - United Kingdom
Framework
Maximum number of suppliers
Unlimited
Contracting authorities that may use the framework
Establishing party only
Submission
Publication date of tender notice (estimated)
29 September 2025
Enquiry deadline
10 October 2025, 4:00pm
Submission type
Requests to participate
Deadline for requests to participate
29 October 2025, 4:00pm
Submission address and any special instructions
If you are interested in bidding for this tender, please be aware that you will need to have registered on the central digital platform before you will be able to bid. This will require you to complete some information and then you will be provided with a unique identifier. For more information on how to register, please follow the below link:
how to register on the CDP
Tenders may be submitted electronically
Yes
Languages that may be used for submission
English
Suppliers to be invited to tender
2 to 4 suppliers
Selection criteria:
There are four main components to the Conditions of Participation (CoP) Evaluation which are a mix of pass/fail and scored questions. The CoP will test capability, capacity and experience by demonstrable evidence of bidders' previous experience. Bidders that do not pass all hurdle assessment sections will be eliminated from the process. Remaining bidders will be ranked following moderation, and a shortlist of potential bidders (as per IITT instructions) will proceed to the ITT stage.
Award decision date (estimated)
9 February 2026
Award criteria
| Name | Description | Type |
|---|---|---|
| Technical Evaluation | There are six main scored sections to the ITT technical evaluation mapped to Southern Water's criteria themes. The ITT will test the bidders' approach and ability to provide Southern Water with a... |
Quality |
| Commercial | There are four main scored sections to the ITT commercial model covering initial and ongoing costs. |
Cost |
Weighting description
50/50 Commercial & Technical Split
Other information
Description of risks to contract performance
Ofwat water saving targets; KPI & SLA performance; Customer Engagement; Data Security; Regulatory requirements; Quality of work
Procedure
Procedure type
Competitive flexible procedure
Special regime
Utilities
Competitive flexible procedure description
Two-stage Competitive Flexible Procedure, with Conditions of Participation qualifying round and a shortlisting of bidders invited to ITT and a negotiation round
Reduced tendering period
Yes
Qualifying planned procurement notice - minimum 10 days
Documents
Documents to be provided after the tender notice
Tender pack will be published through Jaggaer and will include (but not limited to):
- IITT
- Contractual Documents (including all Schedules)
- Conflict of Interest Document
- Award Criteria
- ITT documentation
- Commercial Bid Template
- Detailed workscope
- Policies & procedures
- This list is not exhaustive, and further documentation may be provided alongside the Tender Notice
Contracting authority
GB-PPON-PBJQ-2231-ZRPG
- Public Procurement Organisation Number: PBJQ-2231-ZRPG
Southern Water, Southern House
Worthing
Bn13 3NX
United Kingdom
Contact name: Tom Daniels
Telephone: +447526977201
Email: tom.daniels@southernwater.co.uk
Website: http://www.southernwater.co.uk
Region: UKJ27 - West Sussex (South West)
Organisation type: Private utility