Earthquake repair contractors at Canterbury University will be forced off campus if they harass female students.
The move comes after two students complained that they had overheard two construction workers talking about other female students in a "derogatory manner".
As a result of the complaint, Hawkins Construction has cracked down on its staff and contractors, and has warned of serious consequences for any kind of harassment. It has also reinforced existing rules around wolf-whistling and other forms of sexual harassment.
"Hawkins does not tolerate any form of sexual harassment or unprofessional behaviour by any of its staff or contractors on, or around our sites," Hawkins' South Island manager Steve Taw said.
Hawkins staff and contractors have also been told they must remove their high-visibility vests and helmets when they are in the university cafe, so they blend in more with students, and don't look intimidating.