We Make Buildings Work... Better!

About Casto Technical Services

In 1965, Casto Technical Services opened as West Virginia's Trane supplier for commercial applications. For more than forty years, we have developed a reputation as the region's most trusted HVAC supplier to businesses, schools, hospitals and other large scale building sites.

Casto Technical Services began as a small, family-run company. More than forty years later, we operate with the same goals - to treat our employees well, to provide our customers honest, reliable advice and service and to offer the industry's best equipment and controls.

For comprehensive HVAC systems and services including installation, preventative maintenance, emergency repairs and complete design services, Casto Technical Services wants to be your partner.