Casto Technical Services - HVAC company in Charleston, WV

We Make Buildings
Work… Better!

Casto Technical Services, Inc. (CTS) has been a locally owned and operated HVAC company in Charleston, WV since 1965. Casto has been known as the region’s most trusted HVAC provider to hospitals; schools; law offices; government facilities; military institutions; data centers; correctional centers; retail businesses; industrial facilities; large corporate buildings; and more. Our technicians are certified to service all makes and models of equipment. We have customers throughout the entire state of WV and sections of OH, KY, MD, VA, and PA.

CTS is comprised of the following departments:

  • Operations                                                    
  • Service 
  • Retrofit and Installation (R&I)
  • Building Automation Systems (BAS)
  • Intelligent Services
  • Parts

Our technical capabilities range from basic HVAC technical support (e.g. air filter service, coil cleaning, belt changes, preventative maintenance, etc.) to troubleshooting and repairs on equipment such as boilers, chillers, air handlers, rooftop units, and control systems. Furthermore, we offer intelligent services and energy monitoring that cannot compete with any other HVAC company in the state.

We are available 24-hours a day, 7 days a week. Contact us today to schedule exceptional service.


Phone: 800-232-2221


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