"Full Collapse" was met with generally favourable reviews from music critics. Chris Collum of "AbsolutePunk" wrote that "Thursday are something special, something that is almost unique, and this album–of their five–does the best job of getting that across." He said that the album's "biggest draw musically" was the way it moves between the "harsh and abrasive to the ambient and soothing in a matter of mere seconds". Punknews.org founder Aubin Paul said the album "delivers on the promise" of their debut "and then some". He added that there was "some serious intensity here, great powerful riffs, and a singer who can actually sing, and scream." Sputnikmusic staff member DaveyBoy said that while it wasn't the "most immediate album of all time", listeners would be "rewarded as Thursday get the best out of themselves here and hardly put a foot wrong". He praised the musicianship as being "top notch throughout, while the vocals are pleasingly satisfactory".