While fans might be glued to the drama as the Blockheads race against time to produce a luxury home worthy of a paddle raise at auction, little do they know that behind the gloss of the multi-million-dollar Block homes are incomplete rooms, incorrectly installed products and ruptured tiling!
Speaking to Woman's Day, a former tradie reveals that nearly all of the "completed" homes have issues that require fixing after the amateur builders "finish them".
In fact, sneaky producers employ a secret group of tradies to swoop in and work on the homes, the minute the gavel is slammed down at auction.
"As soon as the homes sell, we're told to go in and correct all the mistakes that were made," the source reveals.
"It ranges from waterproofing, installing appliances, even repainting."
The source, who has "corrected" several homes from previous Block seasons, says they're often in disbelief at how much they need to redo.
"There's always so much we need to correct. There's no way that they can complete these rooms to a liveable standard in the amount of time they're given, particularly the bathrooms," says the insider.
"Just one coat of waterproofing needs at least a week, and these guys are meant to complete everything within that time frame."
While the tradie admits that the builders on hand do "the best that they can" with the time they're given and their levels of expertise, there's only so much that can be done.