Lennox Stores, formally known as Lennox PartsPlus was founded with one simple mission: to be the first choice for HVAC contractors looking for reliable equipment, parts and service. Lennox Stores, located at 187 Southcreek Pkwy in Romeoville, offers a complete selection of reliable residential and light commercial HVAC equipment, universal parts, indoor air quality products, repair and installation accessories, plus professional service and support.