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Advanced Systems Services Inc. is a family-owned and operated business since 1990.  


We specialize in the service of mechanical systems in a commercial, mobile environment: HVAC, hydraulics, generators, electrical power distribution, fabrication and welding, IT communication, custom interior upfits, flooring, cabinets, wall, and ceiling finishes.  


We are an in-demand employer located in the Inland Empire/Los Angeles area. Our team environment is top notch! For more information about opportunities to work with us, please check out our careers page! 

Our clients include (but are not limited to) the following industries:  

  • Mobile Police and Fire Command and Control 

  • Mobile Medical 

  • Mobile Television Production and Broadcasting 

Our corporate offices and service center in Upland, California include a two-plus acre, fenced, and secured facility for storage and service of customer equipment.


A fleet of fully equipped field service vehicles provide twenty-four (24) hour emergency service to all of California by calling our toll free service hotline at (800) 440-4059.


Our services also include comprehensive maintenance service and inspection programs tailored to each individual customer's needs.


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