FACILITIES SERVICES OPERATIONS & MAINTENANCE Professional Diversified Services, Inc. provides our clients with management, supervision, technical expertise, preventative maintenance, labor, materials, supplies, tools and the effective use of resources to operate and maintain their facilities functions. PDSI’s goal is to design a program that assures you of a hazard free environment for your customers, employees, staff and visitors. PDSI areas of expertise: Maintenance Inventory of all plant equipment Schedule PM’s or risk management Quality Control Equipment Asset Management Operations Planning Architectural Services Facility requirements development