In 2018, Barrett signed a record deal with Bowyer & Bow, launching his solo career with the release of his eponymous debut studio album, containing the singles "The Way (New Horizon)", "Build My Life" and "Better", which debuted at number 22 on the Billboard Top Christian Albums chart in the United States.
On March 19, 2018, Chris Tomlin announced that Pat Barrett would be the first artist signed to Bowyer & Bow his new imprint with Capitol Christian Music Group.
[11] On January 21, 2020, Pat Barrett announced that he would embark on the Build My Life Worship Nights Tour spanning eleven dates across cities in the United States.
[17] On January 22, 2021, Barrett announced that the release of his second studio album, Act Justly, Love Mercy, Walk Humbly, was slated for February 26, 2021, containing the singles "Canvas and Clay," "No Weapon," "Lightning," and "Heavenly," while the title track was availed for pre-order and set to impact Christian radio on March 19, 2021.
Act Justly, Love Mercy, Walk Humbly debuted at number 30 on the Top Christian Albums chart in the United States.
[19] The title track, "Act Justly, Love Mercy, Walk Humbly," peaked at number 47 on the Hot Christian Songs chart.
[26] On April 22, 2022, Barrett on a tenth anniversary version of "10,000 Reasons (Bless the Lord)" by Worship Together alongside Matt Redman, Bryan & Katie Torwalt, Naomi Raine, and Crowder.