The Fiji prime minister Frank Bainimarama, who has been inspecting cyclone damage, says the government is aware that some builders failed to follow the building code to save money.
He made the comment to the Fiji Sun as cabinet is due to meet on Tuesday to receive a cyclone report to continue the rehabilitation programme after last month's devastation by Cyclone Winston.
The category five storm destroyed about 24,000 houses and inflicted material damage initially estimated to be about $US460 million.
Mr Bainiamarama says contractors who had been tasked with constructing several buildings had been looking for cheaper options instead of focusing on quality.
He says in the rebuilding programme, the contractors should follow the National Building Code as a priority so that homes can withstand cyclones.