State government inspectors identified 28 instances of non-compliant electrical work during a series of random inspections on properties across Newcastle.
Inspectors from the Building Commission recently attended 108 residential properties that were under construction to check that electrical work had been completed correctly and all electricians, particularly apprentices, were being appropriately supervised.
Each of the 28 non-compliant electrical installations involved instances where strict safety requirements were not followed.
Inspectors handed out 14 fines for problems including the installation of a prohibited circuit breaker, unsupervised electrical work, unlicensed contracting, and a lack of builder signage at worksites.
The Building Commission is also investigating two matters involving alleged improper conduct and supervision failures.
"While it was positive to see many local electrical contractors doing the right thing during these surprise inspections, rest assured the Building Commission won't hesitate to administer penalties and take disciplinary action where appropriate," Building Commission NSW acting commissioner Matt Press said.
"The Building Commission will ensure these projects are held to account, and we will be revisiting the region again to make sure that supervision and work practices improve."
Safety rules governing electrical work are designed to protect workers, occupants and property from substandard work which could lead to shock and fires. The Supervision Practice Standard also mandates supervision of electrical apprentices to achieve safe and compliant work.
"Enforcement of strict standards by the Building Commission is part of the government's continuing work to rebuild trust in the building and construction industry," Minister for Building Anoulack Chanthivong said.
"I am determined that while we seek to boost housing supply, we will absolutely not compromise on building quality.
"We want to ensure that what is being built is not only safe and compliant but will provide a safe and secure home for the eventual residents of these properties."
Newcastle MP Tim Crakanthorp said the surprise inspections showed the Building Commission was on the job in Newcastle.
"Many Newcastle locals spend their life savings on these projects, and they should expect a safe and compliant property that adheres to the rules right throughout the building process.
"I am proud that the Minns Labor Government is doing what it can to ensure the ongoing safety and trustworthiness of the building and construction industry in Newcastle."