BUNKER HILL, Ind. -- Life for one Bunker Hill family has changed dramatically in the last three months, and this weekend will mark another chapter as they watch their home transformed on national television.

The episode of "Extreme Makeover: Home Edition" featuring the Cowan Brown family will premiere Sunday at 8 p.m.

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Factory workers Andy and Heather Cowan had struggled to support their four children -- Ryan, 16, Trevor, 13, Mason, 8, and Kori, 12, who is battling a congenital blood disease.

Since the October build, spearheaded by hundreds of local volunteers, the family has been enjoying the sprawling 3,000-square-foot home that replaced their one-story, mold-infested house.

"I think the biggest question I get is, 'Are things back to normal?' And I hope what people understand is we don't want to go back to normal," Heather Cowan told 6News' Jennifer Carmack on Friday.

The family has also started a charitable organization -- the irok Foundation -- in honor of Kori's battle, to help families with sick children cope with day-to-day life.

A $50,000 grant from CVS helped get the foundation off the ground, and the family's viewing party on Sunday will also serve as a fundraiser for the organization.

"Now that everyone has helped us, and we're in such a good place, it gives us the opportunity to help other people" Cowan said. "With the irok Foundation, it gives us a chance to keep this going. What everybody did for us, we can do that, hopefully, for hundreds of families."

Family members, who haven't seen the final episode, said they're also excited to watch how their new home came together while they vacationed in Disneyland.

"We're so excited to see what happened here," Cowan said. "We had a great vacation, we really did, but we felt like we were missing out on everything that was happening here."

The Cowan Brown episode will air Sunday at 8 p.m. on ABC.