Parents blind to sons' alleged drug deals

They were 23-year-olds making ends meet on tradesmen's wages while still living at home with their parents.

But police have alleged Daniel Weir, Luke Lembryk and Alvin Lee, were involved in a "get rich scheme" linked to drug supply in southwest Sydney.

Weir and Lee, both electricians, and Lembryk, a plumber, were arrested on Tuesday after raids at homes in Condell Park, Revesby and Padstow.

On Wednesday, each was charged with drug related offences, including the supply of either MDMA, cocaine or ice.

Lee's lawyer Caroline Dobraszczyk told Bankstown Local Court her client was an electrician, did "government-based work" at the company he worked for and lived at home with his mother and sister.

Weir worked for the same company but in a different section.

Lee and Lembryk were granted bail to appear in court next month.

Weir didn't apply for bail and will also appear in court next month.