A generous show sponsor is digging deep into its own pockets and giving the losing The Block NZ contestants a consolation prize.

Freedom Furniture, which has supplied much of the homeware furniture adorning the Block NZ homes for the past five seasons, today said it would be giving each of the losing teams a $5000 cash prize to soften the blow.

"These teams have spent so much time away from their loved ones and worked incredibly hard to provide New Zealand with 12 weeks of entertainment. We think they all deserved more than what they were left with last night," said Freedom Furniture managing director Deb Ridling.

She said she was moved as the auction played out on live television and hoped the gesture would offer a sense of consolation for their efforts and be a reminder that the teams had the support of the country.

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"We felt for the teams last night, and we wanted to show them we are behind them and reward them for all that hard work in delivering these beautiful homes to New Zealanders," she said.

There has been a furious backlash from disgruntled viewers since the show ended on a confused note last night when the home designed by Hamilton dads Andy Murdie and Nate Ross was unexpectedly given a second shot at selling after it failed to reach reserve earlier in the auction.

The house eventually sold for $1,250,000 earning the brothers-in-law a $30,000 profit and making them the overall winners of season six and landing the $100,000 prize.

The win came at the expense of Palmerston North best friends Stacey Cottrill and Yanita McLeay who, as the final house up for auction, thought their profit margin had secured them the lucrative win.

Thousands of people have taken to the show's official facebook page to register their disgust at the way the Palmerston North team had been treated and hundreds called for them to be recognised as the series winner.

Two givealittle pages have also been set up to support the losing teams.

By lunchtime more than $7500 has been raised for Christchurch brothers Levi and Zachary Inglis who walked away with a paltry $1000 profit.