Match ends, Dartford 2, Chester FC 4.
Craig Mahon scored twice as Chester hit back from 2-0 down to move to within six points of the play-off places.
Ryan Hayes set up Lee Noble to volley Dartford into an early lead and Noble then crossed for Elliot Bradbrook to head their second in the 47th minute.
Seven minutes later it was 2-2 as Mahon scored from 12 yards and then hit his second from John Rooney's pass.
Matty Hughes hit Chester's third goal in 11 minutes with a low shot, before Rhys Oates coolly scored the fourth.
Chester climb two places to 14th in the Conference table, while Dartford remain inside the bottom four - three points adrift of safety.
Chester manager Steve Burr told BBC Radio Merseyside:
"I don't mind conceding two goals when we score four. Dartford was a difficult place to come, but we've put on a good show, so it is a great result for us.
"We were very frustrated at half-time because we felt our build-up play was very good but in that final third we just didn't cause Dartford enough problems as an attacking force.
"But we looked at it in the break and, in the second half, our final third play was extremely good to watch and it was nice to see some moves finished off."
- 19DriverSubstituted forCollierat 59'minutes
- 6CornhillSubstituted forHarrisat 71'minutesBooked at 90mins
- 8NobleSubstituted forDaleyat 81'minutes
- 1WorsnopBooked at 67mins
- 5BrownBooked at 35mins
- 7MahonSubstituted forTourayat 88'minutes
- 8JamesBooked at 68mins
- 16McConvilleSubstituted forHobsonat 76'minutes
- 9OatesSubstituted forPeersat 90+1'minutes
- Jeff Muschik
- Shots on Target
Second Half ends, Dartford 2, Chester FC 4.
Danny Harris (Dartford) is shown the yellow card for dissent.
Substitution, Chester FC. Tom Peers replaces Rhys Oates.
Substitution, Chester FC. Ibou Touray replaces Craig Mahon.
Goal! Dartford 2, Chester FC 4. Rhys Oates (Chester FC) left footed shot from the right side of the box to the centre of the goal. Assisted by Craig Hobson.
Substitution, Dartford. Luke Daley replaces Lee Noble.
Substitution, Chester FC. Craig Hobson replaces Sean McConville.
Substitution, Dartford. Danny Harris replaces Max Cornhill.
Kingsley James (Chester FC) is shown the yellow card for a bad foul.
Jon Worsnop (Chester FC) is shown the yellow card.
Foul by Craig Mahon (Chester FC).
Lee Noble (Dartford) wins a free kick.
Corner, Chester FC.
Goal! Dartford 2, Chester FC 3. Matty Hughes (Chester FC) left footed shot from the left side of the box to the centre of the goal. Assisted by Rhys Oates.
Substitution, Dartford. Nathan Collier replaces Callum Driver.
Goal! Dartford 2, Chester FC 2. Craig Mahon (Chester FC) right footed shot from the centre of the box to the bottom right corner. Assisted by John Rooney.
Goal! Dartford 2, Chester FC 1. Craig Mahon (Chester FC) right footed shot from the right side of the box to the bottom left corner.
Goal! Dartford 2, Chester FC 0. Elliot Bradbrook (Dartford) header from the centre of the box to the top right corner. Assisted by Lee Noble with a cross.