Attachment of electrical junction box mounts to junction box by a single step or through a single motion. Mounts may be constructed as a single part. Electrical junction box ceiling mount includes a spanning element for traversing an acoustical ceiling tile and a support element connected to the spanning element. The support element includes a fastener adapted to engage a sidewall of an electrical junction box, including one or more faces of the sidewall. The support element may also include a bracket configured to support a portion of a rim of the front opening of the electrical junction box. The fastener may include a bracket configured for an interference fit with the sidewall of the electrical junction box. The fastener may also include a bracket adapted to engage an outside face of the sidewall on opposing sides of the electrical junction box.