Master Builders' Director of Construction Policy, John Crittall, said health and safety matters were far too serious to be used to pursue an industrial agenda.
"Master Builders will be encouraging the new government to strengthen safeguards and protection to contractors who are routinely disrupted by union officials abusing their rights and powers," Crittall said.
"Master Builders will seek stronger penalties for unlawful conduct as well as other possible solutions that provide the highest levels of safety while protecting the contractors on the projects.
"Workers should be able to move into safe areas wherever unsafe acts or unsafe conditions are identified on site.
"Proper procedures that have genuine safety issues raised and resolved should be the cornerstone of every project without undue interference from union officials."