Barnet climbed up to sixth in the Conference Premier with a solitary goal from Jon Nurse enough to defeat Dartford.
Nurse was in the right place at the right time to turn in Keanu Marsh-Brown's shot at the near post.
Luke Gambin, Ahmed Abdulla and Edgar Davids all went close with efforts for Barnet before Nurse struck.
The hosts had player-boss Davids sent off for two yellow cards late but they held on for victory.
VIEW FROM THE DRESSING ROOM
Dartford manager Tony Burman after 1-0 defeat to Barnet told BBC Radio Kent:
"We've played really well today but the results aren't going our way.
"The only thing lacking was a goal, we've created chances.
"We should have got something but it wasn't to be."
Barnet 29 Stack 06 Saville 30 Stephens Booked 14 Abdullah 04 Weston 02 Yiadom Booked 11 Gambin (Cadogan - 72' ) 19 Villa López (Byrne - 78' ) 07 Marsh-Brown 01 Davids Dismissed after an earlier booking 21 Sykes (Nurse - 24' ) Substitutes 15 Cadogan 28 Nurse 05 Acheampong 13 Jupp 08 Byrne Dartford 29 Smith 05 Clark 12 Essam 04 Sterling 08 Noble 10 Bradbrook Booked 17 Martin (Collier - 77' ) 31 Stevenson 20 Burns 11 Harris Booked (Dembele - 88' ) 16 Birchall Substitutes 01 Julian 15 Collier 06 Cornhill 30 Woodyard 35 Dembele
Ref: Craig Hicks