Both sides started well. Calvin Poku forced Adam Seal into an save on the half-hour mark before Chris Clark was forced into two good saves to prevent Tom Ranger from putting Rovers into a first-half lead.
Just when the game was seemingly heading to a goalless draw, Lee Weemes saw a shot well-saved by Seal with six minutes remaining. The hosts broke clear with Ranger putting Trenkel's side ahead.
'Side pushed for an equaliser but conceded a second late-on when the unfortunate Josh Akapka scored an own-goal.
Matt Frew's are next back in action on Monday night when they host play-off hunting Thurrock at Cricklefields.