Commercial Janitorial Service Since 1979. We Don't Cut Corners, We Clean Them. Servicing All of Palm Beach County. Licensed, Bonded & Insured. Call Today For Your Free Estimate. As a licensed, bonded and insured janitorial service company, Crystal Building Maintenance has served Palm Beach County for over 25 years. Crystal Building Maintenance not only provides daily service, but also emergency service. The company operates 24 hours a day and 7 days a week. The Crystal Maintenance Team is exceptionally trained in via seminars including OSHA, BOMA and BSCAI. Don Besman, Presdient and CFO, is a certified public accountant with a wealth of experience running large service and industrial oriented businesses.