Four homes have been evacuated in the Auckland suburb of Milford after a burst sewage pipe spilt waste through local properties.

A fire service spokeswoman said they were called to the scene on Shakespeare Road at 2.40am on Sunday after receiving reports of a water leak.

Upon arrival, the water leak was found to be a burst sewage pipe and the Auckland Council was notified.

Auckland water company Watercare have crews on site and have closed the wastewater pump station to stop the flow of wastewater, a spokeswoman said.

Up to four homes have been evacuated, with Watercare covering the costs of alternative accommodation for the affected residents.

Temporary repairs are being undertaken and an investigation into the cause of the burst is still unknown.

When asked if there were concerns with the state of Auckland's pipes, Watercare said they were investing in the infrastructure.

"Watercare continues to invest significantly in Auckland's water and wastewater system, however spills and breakages can still occur," a spokeswoman said.

Safeswim has issued a long-term no-swimming warning near the Wairau Creek outlet due to its "high risk" and has further advised people not to swim on Milford Beach.

Watercare has a large wastewater pump station on Alma Rd, where wastewater was pumped towards the Rosedale Wastewater Treatment Plant.

The leak happened this morning and Watercare staff and contractors are on site attending to the situation.

Auckland Council pollution control staff had been advised and were working with the Watercare incident controller.