The Texans wasted little time after the half to get on the scoreboard.
Trailing 17-16 at the intermission, Deshaun Watson and the offense marched 75 yards in 3:09.
Running back Carlos Hyde punched in a 1-yard scoring run for the touchdown, and the Ka'imi Fairbairn extra point gave Houston a 23-17 advantage.
On the 7-play drive, Watson connected with Keke Coutee for a 51-yard gain. That big play moved the Texans from their own 31-yard line to the Falcons' 18. Duke Johnson then carried for six yards, Hyde followed that up with a 5-yarder, and Watson then hit Fuller for a pickup of six down to the goal line.
Hyde bulled his way in after, and put the Texans on top.
At that point, the Texans had scored on four of their last five possessions.
It was Hyde's second touchdown of the season.
Houston Texans Fans come out to NRG Stadium for the fifth game of the 2019 NFL season against the Falcons.