Johnstone Supply

Johnstone Supply in Greenville, South Carolina, operates as a heating equipment supplier serving contractors and homeowners across the Upstate region. With a 4.7-star rating accumulated from 27 verified customer reviews, the business maintains standard weekday hours from 8 AM to 5 PM, with Saturday availability until noon and Sunday closure. The location functions as Store 172 within the Johnstone Supply network, providing HVAC equipment distribution to the local trade community and retail customers seeking professional-grade heating and cooling components.

The company stocks an extensive selection of HVAC equipment spanning residential and commercial categories. Their inventory includes single-packaged units, split systems, mini-split systems with variable capacity technology, and multi-zone configurations for customized climate control. They carry gas furnaces, oil furnaces, air handlers, evaporator coils, and extended warranty options. The commercial division offers specialty equipment, while the residential unitary line covers manufactured housing applications and field-installed accessories. This breadth allows contractors to source multiple system types from a single distributor.

Customer reviews highlight specific team members who have gone beyond standard service expectations. Jason, described in one review, provided remote FaceTime troubleshooting assistance to an installer working on a Goodman furnace and AC system startup, identifying a simple fix that avoided unnecessary parts replacement. Another reviewer noted the team sent a seasoned technician to assist with a problematic unit that had failed to perform correctly for years, working alongside the customer's HVAC company to diagnose multiple issues and maximize warranty coverage. Tommy and Matt at the counter receive repeated recognition for product knowledge and helpfulness.