Luke Brindley opened with an early try and Sutton’s strong scrummaging resulted in a turnover scrum with Daniel Carruthers scoring to make it 10-0.
At half-time, Mitch Brindley broke through and Matt Price converted making it 17-0.
Sutton began the second-half with Henry Ward’s first minute try and Price converted making it 24-0.
Ward scored again a few minutes later with Price converting.
Sutton held off Nuneaton’s attack and Jacob Jones went over the line with Ward converting to close at 38-0.