Amendments to the Construction Contracts Act are due to be passed in Parliament soon and to come into effect from July 1.
Peter Degerholm, a Wellington-based dispute resolution consultant and construction expert closely involved with the original act, backed the changes to the law, intended to help resolve building disputes and fights over money.
The changes will affect homeowners and their relationships with builders and other consultants, as well as those working in the commercial building sphere.
"The main changes are technical, to make the payments and adjudication process more effective," Degerholm said.
This was needed because some adverse decisions from the courts meant elements of the act were not entirely clear or adjudication had not worked as well as intended.