Empire Maintenance commenced cleaning 18,000 telephone booths with 40 employees in the Los Angeles, San Diego, and Orange County areas. Empire Maintenance quickly began to grow. The combined total square footage for 160 banks was an astounding 1,300,000 sq. ft. Empire Maintenance increased to cleaning nearly 6,000,000 square feet per night. Our service area expanded to include Lancaster, Pomona, Ventura, and the Inland Empire. With new accounts, the reputation of Empire Maintenance continued to grow. Empire has also expanded to Las Vegas, Nevada and Phoenix, Arizona.