Wawrinka, who will meet the winner of either close friend Roger Federer and world number one Rafael Nadal, said; “It’s amazing. I didn’t expect to make a final in a Grand Slam in my career. Now it’s happening, so I’m really happy.
“I’ve been working really hard for many years, trying to improve my game, trying to get some big matches in big stadiums.
“Last year I had the feeling I was playing better, but I was dealing better with the pressure also. I’m more mature. I’m 28 now. I’ve been on the tour for 10 years. Now I feel it’s my time to play my best tennis.”
Berdych had only made one Grand slam final, losing to Nadal at Wimbledon in 2010, and the tension of the occasion was evident in both men.
There was no letdown for Wawrinka after his win over Djokovic and he secured the only break of serve in the match in the eighth game when Berdych missed a smash.
“It was really close,” said Wawrinka. “It was a strange game. I don’t think we played our best tennis, but we served really well.
“To play a four-set match with three tie-breaks is rare but I tried to stay really aggressive in the tie-breaks, tried to go for it. My goal was to be more aggressive than him.
“I had the feeling he was really nervous and really tired because he gave me some points in the tie-breaks.”
Meanwhile, Li Na will meet Dominika Cibulkova in the women’s singles final tomorrow after the latter thrashed Agnieszka Radwanska 6-1 6-2.
Cibulkova is the first Slovakian to make a Grand Slam singles final, and said: “The most important game was when I won my serve for 5-2. Then I knew I was going to do it. I can’t believe this is happening.”
Earlier, Li ended Eugenie Bouchard’s brilliant run to reach her third final in four years, winning out 6-2 6-4.