I asked for a quote from Richtek for a sale settlement compliance check on the RCDs and smoke alarms in a 2 bedroom unit. I was told by the attending electrician that the entire electrical system was unsafe (because the RCDs had been recalled and needed replacing, the whole switchboard needing replacing and junction boxes were required in the ceiling space) and should not be used. The electrician was aware that I had 7 days until settlement (which was a rapid timeframe at the buyers request). I was quoted $4400 by Richtek and told a 50% deposit was required to secure the job (and for the quote to be secured the deposit was required to be paid ON THE SPOT with NO terms and conditions of the quote provided at the time!!), otherwise they would need to reattend and requote. Luckily, I contacted my real estate agent handing the sale, who arranged for an electrician he used regularly to also quote the work required. That quote came to about $800! The second electrician confirmed that the switchboard was perfectly safe, so he replaced the RCDs (low cost), the two smoke alarms and installed a junction box (only one was required) in the ceiling for a total price of $792. PLEASE do your homework and seek other quotes, do not just trust what this company tells you as it could cost you a lot of money.