Kvitova opened the tie with a 75 61 win against Marion Bartoli before Berdych sealed victory by defeating Richard Gasquet 76(0) 64. The two Czech players, ranked No. 2 and No. 7 in the world respectively, remained unbeaten in singles play throughout the tournament.
Czech Republic sealed their place in the final by finishing top of Group A in the round robin stage, following wins over Bulgaria, USA and Denmark. The tie against the Danes was notable for Kvitova's clash with world No. 1 Caroline Wozniacki, in which the left-hander prevailed 76(4) 36 64.
"It was a really good match (against Wozniacki), but today I played much better against Marion and it's always tough to play with someone at the top," said Kvitova. "It's really good to win at the beginning of the season and of course I have to say thank you to Tomas because without him we wouldn't win."
Berdych added: "It couldn't be better, it was an extremely great week and first of all I need to congratulate my partner. She won all she can and I just add some winnings again and now we can be standing here and have such a nice trophy, so it was really good week.
"I think it was possibly the best final that could come of those two Groups and we are happy for that. We would like to congratulate them as well to get the final and wish them both the best of luck for the rest of the season, for the Australian Open and all of the weeks. I think everybody enjoyed it, we had the best time on court and I hope the people liked it."
Czech Republic's only previous Hopman Cup success was in 1994 when Jana Novotna and Petr Korda teamed up to defeat Germany's Anke Huber and Bernd Karbacher in the final. Meanwhile, France are still searching for their maiden Hopman Cup title.
In 2013, the Hyundai Hopman Cup will switch venues to the newly built Perth Arena. Click the links below for more information about the tournament.