Johnstone Supply

Johnstone Supply has operated as a commercial HVAC equipment distributor in Tampa for more than three decades, serving licensed contractors across Hillsborough County and the surrounding Gulf Coast region. With a 4.2-star rating drawn from 39 client reviews, this supplier focuses exclusively on professional HVAC technicians and commercial operators rather than residential homeowners. The location maintains weekday hours from 7:30 AM to 4:30 PM and can be reached directly at (813) 875-4545 for account inquiries and will-call orders.

What distinguishes this Tampa supply house is its depth of inventory in specialized commercial HVAC components, including manufactured housing units, geothermal systems, high-velocity air systems, and reverse cycle chillers that many regional distributors do not stock. The branch carries the full spectrum of HVACR parts, from accumulators and filter-driers to solenoid valves and sight glasses, enabling contractors to complete repairs in a single visit. Their control department handles commercial building automation components, while the parts counter maintains extended warranties on residential unitary equipment.

Client testimonials identify several technicians who have earned repeat business: Jim is praised for walking customers through obscure part cross-references, while Tony and Gregg have facilitated weekend and after-hours support for healthcare and mission-critical facility managers. One reviewer describes a scenario where Johnstone's team sourced a hard-to-find evaporator coil on short notice, allowing a contractor to complete a same-day commercial installation that other suppliers had quoted as multi-day delays.