Lukaku's impact was immediately felt with his physical presence proving difficult for the Hammers to contain and his efforts were rewarded four minutes from time when he headed home a Kevin Mirallas cross to send the away fans into raptures.
Speaking to Match of the Day after the game, Everton manager Roberto Martinez praised Lukaku's performance: "His link-up play was magnificent in the winning goal. He gets himself where it really hurts. That was a key moment and showed where he can be a key player for us. He can be very special for us."