King joins after a successful season with Loughborough Dynamo in the Northern Premier League Midlands division, where he made 41 appearances and kept nine clean sheets.
The 31-year-old shot stopper arrives at Grange Park with plenty of experience having made over 250 appearances at Step Three and above across his career.
“I am really happy to be able to welcome Lewis King to the club," First-team manager Brad Munn said: "He’s an outstanding goalkeeper who is a leader on and off the pitch.
“His front foot approach, ability and personality in each game, I’m sure will connect him with the fans immediately.
“After another great season last year in the league we should be operating in it’s another great bit of experience and quality coming in for the new season.
“Welcome to the club Kingy and can’t wait to work with you again!”