Signarama Share: Professional Services Signarama Visit Website 33424 Alvarado-Niles Blvd. Union City, CA 94587 (510) 475-4110 (510) 475-4112 (fax) About Map About A full service sign center, providing any type of sign, ad-specialty items, banners, channel letters, digital graphics, individual letters and so much more. What's Nearby? Distance: 5 10 15 20 25 50 mi.