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Casto Technical Services, Inc. Air Conditioning Heating & Plumbing

540 Leon Sullivan Way
Charleston, WV 25301
(304) 346-0549
Fax: (304) 346-8920
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Diagonally across the street from Soho's at the Capitol Market
Monday Through Friday 7:30am to 5:00pm

who to contact

April Dunlap · Inside Sales Support · Phone:(304) 346-0549  · Send an Email

about us

For more than 50 years, Casto Technical Services has been providing state-of-the-art HVAC services for buildings such as schools, hospitals, large corporate buildings, government buildings, correctional institutions, industrial buildings, and much more. Casto serves all of West Virginia and parts of Ohio, Kentucky, Maryland, Virginia, and Pennsylvania. Casto has built a reputation of being a family-owned business that treats its employees well and provides honest, reliable advice and dependable service to its customers, while using the industry's most up-to-date equipment and controls. We strive to make sure buildings operate properly and efficiently. WE MAKE BUILDINGS WORK...BETTER!


  • Casto has been a Charleston Area business for over 50 years.
  • Casto has over 40 certified commercial HVAC technicians through out the state of West Virginia.
  • Casto specializes in HVAC Maintenance Agreements.
  • Casto Technical is non-union and places a specific emphasis on work/life balance.
  • Casto installs commercial HVAC equipment and controls.