David Laird opened the scoring for 'Side on 17 minutes only for the hosts to go into half-time 2-1 up thanks to goals from Lindsipho Mytanda and Chris Stevens.
After the break forward Luke With was sent-off on 53 minutes before Ilford wrapped up the game up with three second-half strikes from Elias Amar Tackie (2) and Justas Paliulis.
'Side are back in action on Monday night when they host Ryman North opposite Brentwood Town at Cricklefields. Kick-Off for that match is at 7:45pm.
'Side: Jack Francis, Dean Ellul, Paul Wright, Leon Smith (Aidan Lucas), Joshua George, George Lutaaya, Jason Fontaine, Sam Edwards (Danny Blake), Luke With, David Laird, Billy Hickford (Tyrone Scarlett).
Subs Not Used: Matt Gulfer, Sam Konway