Friedel has enjoyed watching his fellow American succeed at his old club.
He told Villa's website: "Now is his time! He could be Villa's No.1 for over ten years, absolutely. It's entirely up to him by way of his performances.
"If he keeps playing like he has done this past season, he could be Villa's goalkeeper for a long, long time.
"When you're a goalkeeper that's all you can ask. You can only ask to be in the team if your level of performance is consistently high.
"He knows that Villa is going to be a club with very good goalkeepers so he has to keep his performances up. That's the same with any big club.
"He can be one of the top goalkeepers in the Premier League too. He has all the attributes to be."