Thames Water is giving advance notice of an upcoming tender for a c£175 million (inc VAT) AMP8 contract for buildings lifecycle and welfare services, building renovations, remedial works and/or the provision and maintenance of welfare cabins.

The water company is looking to award framework agreements to a number of suppliers for a range of services including project design, building renovations, remedial works and/or the provision and maintenance of welfare cabins.
Due to the varying age of buildings and structures within Thames’ estate, which consists of over 400 sites across its supply area, the utility says there is a need to carry out renovation and remedial works in order to ensure they remain safe and fit for purpose.
The framework agreements will cover the following works:
- Consultancy (Project Design)
- Internal & External Works to operational and corporate buildings (London area)
- Internal & External Works to operational and corporate buildings (Thames Valley and Home Counties) Roofing
- Asbestos Consulting
- Asbestos Treatment
- Welfare Cabins.
Thames Water will reserve the right to issue multiple awards for each Lot in the agreement to achieve the most efficient and economical service solution whilst ensuring the security and consistent continuity of supply and delivery.
In parallel, although on a slightly different timetable, the company is also running a procurement exercise for facilities management services whereby there are some common areas of work with the forthcoming procurement.
Lot 1. Consultancy - Project Design (£4.16 million inc VAT)
Designing and planning of complex building and refurbishment works. Between 1-2 suppliers will work closely with Lot 2 (Internal & External Works) suppliers to design and plan their complex works.
The lifecycle programme is diverse and will need project design over multiple disciplines.
Services cover the provision of design solutions for complex or structurally unstable roof repairs, boundary walls, cladding systems, building engineering services, general building and drainage. Also undertake condition surveys for houses prior to repair on the waste network.
Lot 2a. Internal & External Works (London) (£72. 8 million inc VAT)
Building/refurbishment works covering construction, electrical and mechanical, in the London area. Construction works including:
- cladding services
- building engineering services
- general buildings and drainage
- windows
- foundations
- demolitions of buildings to ground level and removal
- waste removal
Thames Water will award between 3-6 suppliers who will be responsible for delivering the building and renovation works with no guaranteed volume.
Lot 2b. Internal & External Works - Thames Valley & Home Counties (£38 million inc VAT)
Building/refurbishment works covering construction, electrical and mechanical, in Thames Valley and the Home Counties. Construction works including:
- cladding services
- building engineering services
- general buildings and drainage
- windows
- foundations
- demolitions of buildings to ground level and removal
- waste removal
Projects will vary in size and value: these will be in the most part multi-discipline works that will require interface management with different trades and sub-contractors. Thames Water will award between 3-6 suppliers.
Lot 3a. Roofing Works (£57.2 million inc VAT)
Roof installation, repair and maintenance.
Suppliers will work with asbestos consultancy and removal firms to ensure safe refurbishments and works are carried out. Thames will award between 2-4 suppliers.
Lot 3b. Asbestos Consulting (£400,000 inc VAT)
Asbestos surveys during building work. Thames Water estate has buildings of varying ages, and asbestos surveys must be completed before refurbishment and repair works can commence. Suppliers will work in conjunction with asbestos removal firms to ensure a safe and effective process to asbestos works.Thames will award between 1-2 suppliers.
Lot 3c. Asbestos Removal (£1.6 million inc VAT)
Treatment and removal of asbestos.
Thames Water estate has buildings of varying ages, and asbestos removal and treatment works must be done during certain refurbishment and repair works. Suppliers will work in conjunction with asbestos removal firms to ensure a safe and effective process to asbestos works. Thames will award between 1-2 suppliers.
Lot 4. Welfare Cabins (£880,000 inc VAT)
Installation and maintenance of temporary welfare units (e.g. operational site offices). Thames Water requires temporary welfare units of different kinds on many operational sites, for use by site workers. Thames will award between 1-2 suppliers.
Current estimated publication date of a formal tender notice is 1 December 2025, with a deadline for enquiries of 5:00pm on 5 January 2026 and a tender submission deadline of 10:00am on 9 January 2026,
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