Johnstone Supply - Pittsburgh: Trusted HVAC Repair Serving Pittsburgh, PA 15237

Our Pittsburgh North warehouse maintains a deep local inventory of over 70,000 items, including common motors, capacitors, contactors, air filters, refrigerants, and tools. For urgent repairs, especially for local issues like short-cycling furnaces, we prioritize stocking compatible control boards, flame sensors, and thermostats to help you get systems running quickly.

Short cycling is often caused by a faulty flame sensor, clogged filter, or incorrect thermostat placement. We stock a wide range of OEM and universal replacement sensors, high-quality air filters in various sizes, and reliable thermostats. Our team can help you identify the correct part quickly to diagnose and resolve this inefficient and damaging cycle for your customer.

Yes, as a full-service HVAC/R distributor, we carry a comprehensive range for commercial refrigeration, including compressors, evaporator coils, expansion valves, and refrigerants for restaurants, grocery stores, and facilities throughout Pittsburgh. Our extensive manufacturer network allows us to source specialized commercial parts efficiently.