Maintenance & Operations (M&O) provides a variety of preventative maintenance and repair services to keep your building systems running in a reliable manner. M&O has four district locations to be close to your buildings throughout the County that provide electrical, plumbing, HVAC and general maintenance. District 1 serves the Civic Center; District 2 serves the North County; District 3 serves the West side; and, District 4 serves the South and East. M&O also has two County-wide support teams that provide specialty maintenance and repair services dispatched from ISD’s Eastern campus. Such services include roofing, masonry, painting and more.