The game’s only goal came on 35 minutes when Donovan Wilson fired past Grant Smith.
It was a match of few clear-cut chances and Town could not break down a disciplined Sutton defence.
The visitors have only lost four all season and you could see why with their excellent organisation.
Here are Liam Norcliffe’s player ratings from the game...
1. Grant Smith 7
Made a good save to deny Donovan Wilson at 0-0. Had no chance with Wilson's winner. Photo: Dean Atkins
2. George Carline 7
Carline was shifted in one to right centre-back after Kerr's injury and he adapted well. He did not look out of place. Great bit of defensive play to outmuscle Wilson who was in on goal in the second half. Photo: Dean Atkins