Area of operation

The map below shows our area of operation for water supply and wastewater treatment, as well as the areas other water companies serve.

You can check if you're in our water supply area by entering your postcode in the 'In your area' feature.

Map of our area

Supplying water to Portsmouth and the surrounding area.

Serving parts of North West London and the Home Counties.

Supplying to the south east of England

Supply to the Redhill area.

Supplying to several parishes on the Hampshire/Wiltshire border.

Supplying the south west of England including Dorset, Somerset, Bristol, most of Wiltshire and parts of Gloucestershire and Hampshire.

Supply to the London and the Thames Valley area.

Covering parts of Dorset, Hampshire and Wiltshire.

Our business