We are a full-service electrical contractor recognized by general contractors for continuing excellence and high standards. D ... elta is a privately-owned corporation established in 1971 which is licensed and bonded in Arizona, Nevada, New Mexico and California.You can depend on Delta to complete your project on time and on budget with professional management and skilled craftsmen. We provide: • 24/7 availability to our customers • Full-service capability • Design/build expertise • Quality assurance • Comprehensive cost evaluation • Commitment to schedules • Safety-oriented operations • Customized maintenance Our up-to-date equipment includes: • Complete tool department • Radio-dispatched trucks • Booms capable of reaching to 54 feet • Full-source testing equipment • Fully-equipped service vans • Certified high voltage technicians read more