Johnstone Supply

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About Johnstone Supply
Johnstone Supply operates as a heating equipment supplier serving Greenville, North Carolina, and the surrounding communities. The location holds a 4.5-star average rating drawn from 30 customer reviews, reflecting consistent service quality over years of operation. This supplier focuses on the contractor trade, stocking equipment and parts that professional HVAC technicians need for residential and commercial installations and repairs. The Greenville store functions as part of a regional network, providing access to manufacturer warranties and technical support that independent contractors rely on for their daily work.
The supplier distinguishes itself through broad equipment coverage spanning multiple system types. Their inventory includes single-packaged units, split systems, mini-split configurations, and the associated components like evaporator coils and air handlers that technicians install during new construction or replacement projects. They carry both gas and oil furnaces alongside variable capacity systems designed for modern high-efficiency applications. Extended warranty programs add additional protection for equipment purchases, giving contractors and their clients peace of mind beyond standard manufacturer coverage.
Customer feedback highlights specific team members who deliver exceptional service. A reviewer described David K. taking thorough time to explain every step of an installation process, answering questions completely and finding answers to unfamiliar topics rather than guessing. Another account details Chad and Thomas providing consistent service across multiple employees at a contracting business, with the same quality of assistance extended to every team member who calls. A 13-year business relationship detailed by one reviewer demonstrates the long-term reliability that keeps contractors returning.
What Customers Say
Seven of seven reviewers awarded 5 stars, citing staff willingness to help after hours, thorough product explanations, and consistent service across multiple employees. One reviewer flagged order communication gaps as an area for improvement.
Working Hours
| SundayToday | Closed |
| Monday | 7:30 AM–5 PM |
| Tuesday | 7:30 AM–5 PM |
| Wednesday | 7:30 AM–5 PM |
| Thursday | 7:30 AM–5 PM |
| Friday | 7:30 AM–5 PM |
| Saturday | 8 AM–12 PM |
Services
Commercial HVAC Equipment
Single-packaged units and split systems designed for commercial buildings and multi-unit properties.
Residential Systems
Furnaces, air handlers, and evaporator coils for home heating and cooling installations.
Mini-Split Systems
Single-zone and multi-zone configurations for flexible cooling solutions without ductwork.
Variable Capacity Systems
High-efficiency systems that adjust output based on heating and cooling demand.
Installation Accessories
Field-installed components and supplies needed for professional equipment installation.
Extended Warranties
Optional warranty coverage adding protection beyond standard manufacturer terms.
Parts and Components
Evaporator coils, replacement parts, and specialty items for repairs and maintenance.