Johnstone Supply

Johnstone Supply operates as an HVAC equipment supplier in Tonawanda, New York, catering primarily to licensed contractors and trades professionals rather than residential homeowners. Located just off the Thruway in Erie County, the store serves contractors across the Buffalo-Niagara region and surrounding Western New York communities. With 16 verified reviews holding a 4.5-star average, the business has built a two-decade reputation among area HVAC technicians who depend on same-day parts availability and expert guidance for complex installations and emergency repairs.

The Tonawanda location stocks an extensive equipment portfolio spanning residential unitary systems, mini-split configurations, and commercial packaged units from major manufacturers. Their inventory includes gas and oil furnaces, air handlers, evaporator coils, variable-capacity systems, and multi-zone mini-split setups with field-installed accessories. The contractor-only model means customers must establish a commercial account to access pricing and place orders, a distinction that keeps the focus squarely on professional tradespeople rather than walk-in retail traffic.

Customer feedback highlights specific technicians who have earned trust within the contractor community. David Fiden describes how staff identified a needed part by model number, quoted a price immediately over the phone, and held the component for pickup. James Davide notes the team is helpful when independent repairmen encounter problems on job sites, praising their proximity to the Thruway as a convenience for technicians working across the region.