Six new teams battle it out for a life-changing prize in the new season of House Rules, hosted by Johanna Griggs. Picture: Supplied

Show host Johanna Griggs says the “lovely bunch” of six teams, who’ll take turns overhauling each other’s dingy and cramped homes each week, have their work cut out for them.

The new season of the Channel Seven reality show kicks off on Wednesday night in Melbourne, where parents Fil and Joe handed over the keys to their run down, tiny family pad.

As the competition begins, Griggs gives her insight on the teams battling it out the life-changing prize of having their mortgage completely paid off.

Melbourne parents Fil and Joe are the oldest in the House Rules competition and have the most renovation experience. Picture: SuppliedSource:Supplied

“First off, Fil and Joe are a bit more experienced,” she said. “And everyone knows a couple like them — they’ve got a million ideas, they’ve always got a way to save a buck … they are handy.”

When they clash, the parents-of-two find a way to deal with it and move on, Griggs said.

That’s not the case with fellow Victorians Claire and Hagan, who struggle under the pressure at the beginning.

Victorian couple Claire and Hagan struggle under the enormous pressure of renovating one house each week, Joh says. Picture: SuppliedSource:Supplied

“Initially, their communication levels can do with a lot of improvement,” Griggs said. “They learn pretty quickly.”

Country twins Luke and Cody, from Queensland’s Darling Downs, surprise just about everyone with their hidden abilities and are bound to become viewer favourites, she tipped.

Twin brothers Luke and Cody are bound to win over viewers, Joh says. Picture: SuppliedSource:Supplied

“They’re just divine. They’re so courteous — they spend half their time helping other teams when they should be focusing on their own spaces. It’s very endearing.

“These boys have no preconceived design ideas and they’re not up on a lot of the terminology … but they’re incredibly handy and have a knack for thinking outside the square.”

Griggs, who has two teenage sons, sent Luke and Cody’s parents a note during filming, saying they should be proud of how they raised them.

“As a mother of boys, I hope that’s how they are — polite, kind and just really nice people. They’re so likeable. People will love them.”

Boys from the bush Luke and Cody have zero design knowledge but surprise everyone with their natural talent. Picture: SuppliedSource:Supplied

Less likeable at various points is Navy officer Rob from Western Australia, who’s competing with his wife Rose.

The no-nonsense military man clashes with other teams in the very first episode — and things don’t improve much from there, Griggs said.

“He’s absolutely the nicest man when he’s not under pressure. I can’t even tell you. But when there’s pressure … he goes straight into navy mode. He clashes with everyone early on.”

Sydney couple Nancy and Daniel face their share of struggles, with no renovation experience at all.

“Daniel is naturally a very shy person and he’s so quiet,” Griggs revealed.

Sydney couple Nancy and Drew find the House Rules experience a steep learning curve to start with. Picture: SuppliedSource:Supplied

Navy man Rob rubs everyone up the wrong way but Rose is just as strong-willed, Joh says. Picture: SuppliedSource:Supplied

“What’s lovely to see is how much his confidence grows over time. And Nancy is a lovely personality — very warm and very positive. And these two, if something doesn’t go right they get so dejected so easily.”

Adelaide couple Brooke and Michelle are easy going, Griggs said. But they’re a little too relaxed and struggle to make even basic decisions.

SA couple Brooke and Michelle are very laid back — sometimes too much so, Joh says. Picture: SuppliedSource:Supplied

“Brooke is a real knockabout guy and is everyone’s mate. Michelle is creative and has an eye for detail. But when they’re under pressure, they can’t make a decision.”

Griggs promised plenty of drama, enormous reno challenges and some of the most jaw-dropped reveals in the show’s history.

House Rules begins Wednesday at 7.30pm and continues Thursday at 7.30pm and Sunday at 7pm on Seven.