Johnstone Supply

Johnstone Supply operates as a heating equipment supplier serving the Dayton, Ohio metro area and surrounding communities including Kettering, Beavercreek, and Riverside. With 44 verified reviews yielding a solid 4-star average, this distributor has built a track record serving HVAC contractors and trades professionals since establishing its Dayton location. The store maintains weekday hours from 7:30 AM to 4:30 PM with Saturday availability until noon, providing contractor-only distribution that requires an active account for purchases.

This supplier distinguishes itself through an extensive catalog spanning commercial packaged units, residential split systems, mini-split configurations, and specialized equipment including geothermal units, evaporative coolers, and high-velocity air systems. Their parts department stocks components across multiple categories, with reviewers frequently noting in-stock availability for hard-to-find items. The Dayton branch offers controls, OEM parts, motors, and refrigeration components, positioning them as a one-stop resource for contractors tackling complex installations.

Positive reviews highlight specific team members who delivered exceptional service. Gabe Trotman praised the staff for having a needed part in stock and walking him through repair steps that resolved his issue. James Driscoll mentioned dealing with the location for over a decade, specifically calling out technician Cory for handling a warranty matter efficiently. Another reviewer, Keith Rose, noted the well-trained staff and next-day ordering capability for out-of-stock items.