History
Sign Wave was originally located on Contra Costa Boulevard in Concord. It was established by Denise Wallace and Steve & Chris Riddle. We continue today to expand upon the tradition of quality and service that was part of this original team .
Specialties
One of our specialties - vehicle graphics. Using only premium vinyl, your vehicle lettering will serve you well for the life of your vehicle. Vehicle graphics offer you the flexibility of taking your advertising message wherever you want to take it.