Our suppliers

This enables us to give our customers a better service while keeping bills lower than they would otherwise be.

As a regulated business, we have a duty to deliver improvements and efficiencies and using expert service providers helps us to do that.


Our service partners

We employ a wide variety of goods and service suppliers, ranging in size from large multi-national organisations to local specialists.

We value the role our partners play in helping us to deliver a quality service to our customers and we are continually reviewing existing arrangements to ensure that value is maintained.

Here is a list of some key suppliers that customers may come into contact with.


React and Maintain Partners

The React and Maintain partners support the day-to-day repair and maintenance of our networks of water mains and sewers and our water supply and wastewater treatment works.

Each contractor provides services across our region, with a focus in the following areas:

Contractor Service provided
BTU MEICA (Mechanical, Electrical, Instrumentation, Controls, Automation
Clancy Docwra Water distribution
Cappagh Browne Sewerage networks


Strategic Solution Partner

Contractor Service provided
Stantec Stantec UK Ltd work alongside our engineering team to help provide valuable expertise in outline design and scope requirements for our major projects.


Delivery Partners

Our delivery partners maintain and improve our water supply and wastewater works:

Contractor Service provided
MGJV A joint venture between Morrison Utility Services and Galliford Try, delivering our investment to expand and maintain our 53,000km network of water mains and sewers.
CMDP A joint venture between Costain and MWH delivering a range of schemes in Kent and East Sussex.
GT Galliford Try, delivering capital schemes in West Sussex, Hampshire and the Isle of Wight.


Other suppliers

Contractor Service provided
Stralfors Stralfors prints and sends out water and wastewater bills to our customers
MTS MTS Cleansing Services collects and removes waste for Southern Water, including removing and recycling waste materials produced by the treatment process at our sites
PN Daly P.N. Daly work around the clock to find leaks in our fresh water pipes in Kent, Sussex, Hampshire and the Isle of Wight
Siemens Siemens inspectors read our customers' water meters