TVNZ reports that the mayors of the six councils most affected by the leaky homes sage have told the government that it needs to 'up the ante' over its plans to deal with leaky homes, and are hoping to meet with government officials by the end of the month to discuss options.

It has been suggested that the Crown will cover 10% of the repair bill and councils 25%, leaving homeowners to pay 65%.

North Shore Mayor Andrew Williams says that while the government should be commended for fronting up with a contribution, but it's too small, too insignificant in terms of a national disaster.

He says the Crown's part needs to be more in line with what local government is perhaps going to contribute, saying a match dollar for dollar would be best.

Williams says the deal also needs to take into account the missing contribution from the building and construction industry.

The leaky homes crisis followed deregulation of the building industry, where a resulting lack of rules meant problems with design and products left thousands of homeowners with ongoing problems.

Issues included flaws in design, product, cladding, workmanship, rules and checks.

The cost to the country has been estimated at $11.5 billion.