Empire Building Maintenance Address: 7231 Boulder Ave, Highland, CA 92346 Phone: (909) 381-8016 Hours: Mon: 9am-5pm Tue: 9am-5pm Wed: 9am-5pm Thu: 9am-5pm Fri: 9am-5pm Sat: 9am-4pm Janitor Service, Cleaning Services-Commercial/Residential, Window Cleaning Other Businesses: Tony's Jewelry & Loan II at 26454 Highland Ave, Highland, CA 92346 Menier Tax Service at 7257 Sterling Ave, Highland, CA 92346