Johnstone Supply

Johnstone Supply operates as an HVAC parts and equipment distributor in Indianapolis, serving professional contractors rather than residential homeowners. Based on 32 verified reviews, the business holds a 4.1-star rating, reflecting mixed but generally solid performance in the local trade market. The supplier maintains standard commercial hours Monday through Friday from 7AM to 4:30PM, with Saturday availability until noon. While the founding year and license information are not publicly listed, the operation appears to be an established supply house serving the Indianapolis metropolitan area and surrounding municipalities.

The inventory depth distinguishes this supplier from typical retail outlets. Website analysis reveals extensive categorization across heating equipment, refrigeration components, commercial controls, and specialized systems including geothermal units, high-velocity air systems, and variable-capacity mini-splits. The product catalog spans major brand categories with field-installed accessories, extended warranties, and OEM parts coverage. This breadth suggests alignment with contractors seeking comprehensive parts sourcing without multiple vendor relationships.

Customer feedback reveals inconsistent inventory accuracy and communication gaps between locations. Reviewer Jon Howell documented three separate trips across southside and eastside stores attempting to obtain a motor and capacitor, with each location providing conflicting availability information. A separate reviewer received incorrectly sized filters despite confirmed labeling. Conversely, five-star reviewer Dan Marts credits the supplier for straightforward transactional service without diagnostic handholding, characterizing the experience as appropriate for industry professionals who know their parts requirements.