The framework, which is part of AMP7, will begin in April 2020 for an initial three-year period with the potential for a five-year extension.
Kier will continue to deliver both planned and 24/7 reactive services including mains network repair and maintenance, metering, new connections and developer services to 1.8 million customers across the South West.
A new scope of works for AMP7 will now also include waste water reactive network and developer services into the contract.
Barry McNicholas, group managing director at Kier Utilities and Rail, said “It’s testament to our long-standing relationship with South West Water that we have been awarded these ongoing AMP7 works.
“Delivering quality services for 1.8 million customers in the South West has been our focus for over 25 years and we are looking forward to continuing to ensure this vital infrastructure is maintained to the same high standard and working in collaboration with South West Water to offer an industry leading experience for its customers.”
This latest success for Kier follows on from its recent award on Lots 2 and 3 of the five-year £2bn Severn Trent Water AMP7 framework where Kier will undertake the delivery of capital construction projects across the Midlands.