Main Street Tattoo located in beautiful Longmont, Colorado opened its doors in October of 2000 on the corner of 2nd & Main St. On December 1st, 2014 Mike & Julie O'Neil proudly opened their new location at 720 Main St. In May of 2020 Mike & Julie expanded Main Street Tattoo and opened up a sister shop at 441 Mountain Ave. in Berthoud, Colorado. All artists work 1 Day a week at the Berthoud location and all Berthoud appointments are scheduled through Main Street Tattoo. If you are interested in scheduling at Main Street Tattoo or Mountain Ave Tattoo. Give us a call at 303-651-6112 or email us at .