Thames Water has gone out to tender with an AMP8 contract for a Mains Rehab Framework Build Only with an estimated value of £120 million (inc VAT).
Scope of the programme of the works covered under the framework includes the following packages of work for renewal of the water mains network:
- Optimisation, structural replacement or relining of distribution water mains within DMAs and bounded by district meters and the District Boundary Valves.
- Structural replacement of all service connections from the distribution mains to customer boundaries, including installation of a suitable boundary box.
- Replacement of all apparatus connected to the network including valves, hydrants, disinfection points, air valves, etc.
- Securing abandoned mains by cutting and capping.
- Removing surface covers, marker posts and plates of abandoned washouts, hydrants and valves etc. so that only covers relating to live apparatus remain.
The framework agreement will run for an initial period of 4 years. Current estimated start and end contract dates are 8 December 2025 to 7 December 2029, with a further possible extension option to 8 December 2033.
The framework agreement will consist of between 2-5 suppliers, appointed through a competitive tender process. Contracts (call-offs) under the framework may be awarded either by:
Direct award, where the terms of the framework allow for the immediate selection of the most economically advantageous supplier based on predefined criteria (e.g. price, availability, performance)
Mini-competition, where the contracting authority will invite all capable framework suppliers to submit proposals for specific requirements.
Deadline for submission of enquiries about the tender is 5pm on 8 September 2025, while the deadline for requests to participate is 10am on 19 September 2025.
Suppliers are asked to complete an online form registering their interest vand provide initial company and contact details in order to gain access to the full Procurement Specific Questionnaire (PSQ).
Click here to access the online form.
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