First Chesters fed centre Ronald McLean before going over for a try of his own. Neither effort was converted, although the home side did add a penalty, with Tom Barrett keeping the visitors in touch with two goal-kicks of his own to make it 13-6 at the half-time interval.
The loss early in the second half of lock Richard Brown to a knee injury, following Alastair Allen’s 20th-minute back injury, meant any hope of challenging Ealing up front had gone.
It was only a matter of time before the floodgates opened, and four tries followed, although a more clinical side would however surely have added to this total.
Before the end, Barrett followed his own chip ahead to score a deserved try.