D. Peppard Mechanical Inc in Thunder Bay, ON, specializes in comprehensive HVAC services, providing expert furnace repair and installation, AC repair, ductless mini-split systems, and water heater solutions for reliable home comfort. Our skilled team offers quality furnace maintenance, heat pump installation, and boiler repairs to meet all heating needs, alongside professional AC installations and HRV system balancing to enhance air quality. We also handle full-home duct work, gas line installations, and leak detection. With a commitment to safety, transparency, and customer satisfaction, D. Peppard Mechanical Inc is your trusted partner for dependable, year-round HVAC services.