The 29-year-old spent last season on loan at the Hawthorns following his parent club’s relegation to the Championship, making 31 appearances in all competitions.
Roy Hodgson, then manager at West Brom was so impressed by his form that, once he was appointed England manager, he offered the goalkeeper the chance to return to the international fold, but Foster turned the opportunity down.
Upon the confirmation of the move, Foster tweeted: “Really happy to have just signed for West Bromwich Albion, thx to the fans for making me feel so welcome last year, can't wait to get started.”
Foster was voted by supporters and players as the best performer last campaign, and new boss Steve Clarke has stressed the value of the signing to the rest of the West Brom squad.
New Hawthorns boss told to the club’s official website: “Ben's been a priority signing all summer.”
“His performances last season were exceptional and it was important for the club to strike a permanent deal for him.
“It's a great signing for me and an even better one for the club. I think the supporters will be delighted we've been able to keep him on board - and make him our player.
“In any league in the world you want a goalkeeper that is going to make match-winning saves, turn draws into wins and defeats into draws.
“A quality goalkeeper is worth ten or 12 points a season to you - and that's certainly what we think we've got in Ben Foster.”
|FOSTERED A FLOP?
|7/2||West Brom are 7/2 with Bet365 to be relegated from the Premier League next season.|
Foster kept 10 clean sheets last season, which equalled a club record for a Premier League season.
And West Brom’s sporting and technical director, Dan Ashworth, echoed Clarke’s sentiments on the important of the ex-Old Trafford’s arrival on a permant deal
“The players, the staff and supporters will be delighted Ben has agreed to join us permanently,” Ashworth added.
“Ben showed to everyone last season how important he is to us, making vital saves at key moments in games.
“He was happy here, enjoyed the goalkeeper coaching under Dean Kiely, the facilities, the supporters, and everything about the club.
“And the fact Ben was with us on loan put us in a prime position to sign him.”