1993–2002: Foreign Objects, CKY and Gnarkill
Margera first played in a band in 1991 or 1992. One of his first bands was Soalroach, which featured brother Bam and friend Ryan Dunn. He later formed Foreign Objects with future CKY vocalist and guitarist Deron Miller, whom he originally met at high school. The band released its debut extended play (EP) The Undiscovered Numbers & Colors in 1995. Along with bassist Ryan Bruni, the duo later performed under the name Oil, before meeting guitarist Chad I Ginsburg (who was then working as an audio engineer) and changing the name of the band to CKY. Speaking about the formation of the band, Margera recalled in a 2003 interview that the main reason he joined CKY was Miller's guitar playing ability, particularly his ability to write "complicated [guitar] riffs that are catchy".
In November 2006, it was announced that Margera had joined English band Viking Skull, replacing founding member Gordon Morrison. Speaking about his replacement of Morrison, Margera has revealed that he unwittingly contributed to the temporary breakup of the band in 2006, after drinking heavily with the band on tour. The new lineup released the album Chapter Two in September 2007, which was mixed by CKY guitarist Chad I Ginsburg. Viking Skull and Ginsburg (this time as producer) worked together again for the follow-up album Doom, Gloom, Heartache & Whiskey, recorded and released in 2008 in the US. The CKY collaboration was extended further, as Joe Frantz and Margera's brother Bam directed the music video for the song "Hair of the Dog".
In addition to his work with CKY and Viking Skull, in 2007 Margera formed The Company Band, a supergroup featuring Clutch frontman Neil Fallon and Fireball Ministry frontman James Rota. Each of the bands had toured with one another between 2005 and 2006, after which the group began jamming together and eventually formed into an official band. With the addition of guitarist Dave Bone and bassist Jason Diamond, the band recorded its debut EP Sign Here, Here and Here with producer Andrew Alekel and released it later in the year. The band recorded its full-length debut in 2009, and released it in November that year as The Company Band. Another EP, Pros & Cons, was released in 2012.
2011–present: Fuckface Unstoppable and future
The fate of CKY was cast into doubt in 2011, when the band released a video in which each member spoke about their desires for the future of the band; all members but Ginsburg wanted to record solo albums, while the guitarist favoured releasing another CKY album. Miller later claimed that Ginsburg had left the band, while Margera tried to calm the situation by suggesting that the frontman had problems with alcohol abuse, and that he needed "support ... not insult[s]". Margera, along with Ginsburg and bassist Matt "Matty J" Janaitis, later returned as CKY in 2012 with Year Long Disaster frontman Daniel Davies in place of Miller. This lineup (with Matt Deis in place of Janaitis) later reunited in 2015, following another split with Miller. Margera has claimed that Davies offered to join the band during a phone call with the drummer, after he had performed on the singer's solo album.
Margera also performs drums in brother Bam's group Fuckface Unstoppable, and has contributed to both studio albums: Stórfréttir Í Reykjavík and Fuckface Unstoppable.