Customs and the ICAC went into a bunch of renovation firms this week and pulled apart a scheme worth about half a billion Hong Kong dollars. The setup was simple and it is one every flat owner in this city has felt in their bones: get three quotes, watch two of them somehow land near identical, wonder if you just got fleeced. Turns out sometimes you did, and there was a syndicate behind it.

Here is the bit nobody tells you when you sign a renovation contract. You are not just hiring a contractor, you are betting that the quote you got was an honest one and not a number three companies agreed on over coffee beforehand. Renovation in Hong Kong runs almost entirely on trust and word of mouth, uncle knows a guy, cousin used this team last year, and that is exactly the gap a cartel walks through. No permit stops a rigged quote. No licence catches a wink between "competitors." The raids this week prove the trust was misplaced for a lot of owners, and the only real fix now is watching whether any of the operators charged actually lose their business licence, not just a fine that gets folded into next year's markup.