Proudly Serving: Los Angeles, CA Established in 1985, Khalifeh & Associates is a professional Mechanical, Plumbing and Electrical engineering firm. Led by Jack Khalifeh and Arash Khalifeh, principals of Khalifeh & Associates and also LEED Accredited licensed mechanical engineers in California, Nevada, Colorado, Washington, Arizona and Canada, our team is strongly committed in providing the highest quality of engineering design and personal attention to our clients. With a wide diversity in project experience, our firm is organized to provide services for health care, aviation, energy services, Title-24 Reporting, Commissioning, LEED, educational facilities, science and technology, as well as single family, Multi-Family, and mixed use developments.