Welsh Water is looking to sign up a host of contractors to deliver a £330m programme of emergency and planned pressurised pipeline work over seven years.

Separate panels of firms will be picked to operate in North Wales, South East Wales and South West Wales, sharing an annual forecast spend of around £47m. Under the present plan each region will be broken down into three further lots based on the complexity of the project with three firms being selected for each lot.

Initially the framework will run for four years, with a possible three-year extension bringing total spend to £330m. For high complexity jobs involving repair and renewal of large diameter high pressure mains including emergency repairs, three firms will share an estimated seven-year spend of around £160m.

Medium Complexity Works will require contractors to deliver a £100m anticipated programme of renewal and repairs to high pressure mains of up to 16 bar and pipe diameter of up to 500mm. Low pressure mains and small pipe diameter work is expected to account for around £70m of total spend. This panel will be open to firms with turnover of more than £1.5m.