Johnstone Supply

Johnstone Supply has served the Oklahoma City metro area for decades as a premier HVAC equipment and parts distributor, operating from their location at Store 16. The company holds a 4-star rating derived from 39 customer reviews, reflecting a mixed but informative snapshot of their service profile. They primarily serve licensed HVAC contractors and skilled DIYers who can navigate their contractor-focused business model, with a service area spanning Oklahoma City and surrounding communities including Norman, Edmond, and Yukon. The supplier maintains standard business hours Monday through Friday from 7:30 AM to 5 PM, with reduced Saturday hours, making them a reliable weekday resource for professionals sourcing replacement components and system equipment.

This supplier distinguishes itself through an extensive inventory of OEM parts and specialized HVAC equipment that often cannot be found at local retail outlets. Their catalog includes residential and commercial split systems, mini-split configurations with variable capacity technology, geothermal units, and manufactured housing equipment. The store offers Amana warranty processing and carries specialty items such as high-velocity air systems, reverse cycle chillers, and through-the-wall condensing units. They maintain a dedicated technical support representative who assists contractors and knowledgeable customers with complex diagnostics and cross-referencing part numbers, a resource several positive reviewers specifically cited as invaluable for troubleshooting unusual system problems.

Named technicians Jeff, Keith, Manny, Brandon, and Reynaldo have earned multiple shoutouts from satisfied reviewers for going beyond standard counter service. One reviewer detailed how the team researched a hard-to-source part for a non-standard project while other local suppliers came up empty. Another customer recounted receiving same-day assistance during a residential heat wave situation where their system failed and they needed immediate guidance. The positive reviews consistently highlight the team's willingness to engage with complex technical questions, though critics note the business operates primarily on a contractor account basis and maintains strict return policies that may inconvenience casual buyers.