Maintenance & Operations

ISD's Facilities Operations Service keeps County buildings safe, comfortable and productive for both County staff and the public. Maintenance and operations services include repairs and general maintenance, whether covered under building maintenance contracts or measurable Service Level Agreements in the areas of:
  • Electrical services
  • Carpentry services
  • Air conditioning & heating (HVAC)
  • Elevator maintenance, repairs & modernization
  • Sheet metal fabrication and repair
  • Plumbing services
  • General maintenance
  • Crafts services and projects

For larger improvement projects, click on the Program & Project Management box below for CEO funded systems replacement and repair projects, or the Alterations box below for more information on department funded improvements.

Download Brochure I'd like information on Facilities Services

New! Fillable Service Request Form

To request SERVICE NOT under Contract, click to download fillable PDF. Email form to Production Manager at

Find my district

To request maintenance or repair services covered under building maintenance contracts or Service Level Agreements, call the ISD District office that serves your facility. If you aren't sure which district you are in, click below to see the district map.

Find my district

Contact Information:

Manuel (Manny) Hernandez
9230 E. Imperial Highway
Downey, CA 90242
Phone: (562) 940-2405
Fax: (562) 940-2421
Brian Lear
500 W. Temple St. B-47
Los Angeles, CA 90012
Phone: (213) 974-9593
Fax: (213) 625-7539
Richard Lugo
13811 Del Sur Street
San Fernando, CA 91340
Phone: (818) 686-1047
Fax: (818) 686-9166
William Armstrong
11236 Playa Court
Culver City, CA 90230
Phone: (310) 391-9441
Fax: (310) 398-9511
Manuel Hernandez
9230 E. Imperial Highway
Downey, CA 90242
Phone: (562) 940-2405
Fax: (562) 940-2421

If you aren't sure which district your facility is in, click the button at left to find your district.

  • ISD provides maintenance and operations services to over 200 County facilities covering more than 13 million square feet. Performing a wide variety of maintenance services including electrical repairs, elevator maintenance, plumbing services, and general maintenance, ISD keeps County facilities safe and productive.

  • ISD's project managers and specialty crafts staff plan, build, and manage alterations and improvements for County facilities to improve functionality, ensure safety and create a productive service environment. ISD can assist with every aspect of your facilities upgrade from modification of space, to new HVAC and roof systems, installation of security systems, concrete work and repairs.

  • Custodial and grounds maintenance services are an essential part of maintaining a healthy and safe environment for staff, clients and citizens. ISD provides maintenance services at more than 160 County facilities, covering over 13 million square feet including daily custodial, grounds and landscape maintenance and trash removal.