Rick Moore's side succesfully saw off Old Xaverians to line up a home Liverpool Echo T20 semi-final with Neston.
Batting first Chester amassed 224-5 from their 20 overs, Lloyd Aspin's 88 including eight 6s and seven 4s. Harry Killoran added an unbeaten 35 with Jamie Crawley 33.
In reply the home side made 86 with the bowling plaudits going to Jack Williams (4-10) and Killoran 3-14. Two wickets too for Jamie Crawley.