Johnstone Supply – Sioux Falls, SD

For reliable HVAC services in Sioux Falls, Johnstone Supply offers expert installation and repair. Conveniently located in the Downtown neighborhood, the business is easily accessible to nearby residents. Keep your home comfortable year-round with our heating and cooling services. We install and service central air conditioning, furnaces, and heat pump systems. Regular maintenance can extend equipment life and improve efficiency. Quality and reliability are at the core of everything we do. We serve Sioux Falls and the surrounding South Dakota area. Customer reviews highlight our commitment to quality. We maintain a 4.4-star rating based on 24 reviews. Call (605) 338-2652 to speak with our team or schedule an appointment.