Mack Signs is a family owned, full-service Lake Havasu City sign company serving the Colorado River area, Mohave County and National accounts for 28 years. We specialize in the design, fabrication and installation of custom signs. Our crew and staff can handle any project, from Monument Signs to Window Graphics to Real Estate signs. We work closely with every customer, no matter how big or small the job is, to make sure that every detail is right.