Although the Ministry of Education did place public notices in newspapers, the residents both said more notification to immediate neighbours would have been preferable.
Tasi Sala, contract manager for Bruce Buchanan, referred questions about the noise complaint to the ministry. A ministry spokeswoman was not able to answer questions by deadline yesterday.
In a previous statement, it said the site has not been used since 2004 and has become a target for vandals which was why the work was undertaken.
The work is expected to be completed in mid-January.