Haroldeans player-manager Jamie Harris said: “It was a scrappy first-half but once we got our noses in front it was comfortable.
"Their goalkeeper had a blinder. It could have been double figures without him. He made some great saves so credit to him for that."
Elsewhere, winless Maccabi Manchester Yellow had to settle for a 2-2 draw against South Manchester.
Max Herman and Mike Herz netted for mid-table South Manchester.