Each week the NZ Herald and Newstalk ZB's Cooking The Books podcast tackles a different money problem. Today, it's the newest episode of our OneRoof-partnered series, on what to know before considering a do-up. Hosted by Frances Cook.

New Zealanders are infamous for loving a bit of DIY.

But there are also the stories many of us have of trying to fix something ourselves, wrecking it, and having to spend more to get a professional to come and save the situation.

So when we're talking about something as expensive as a house, what's the line?

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If you go for the

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