A G O'Brien Plumbing & Heating Co

For over 70 years, A G O'Brien Plumbing & Heating Co has provided trusted HVAC services to Duluth and the Northland. Located at 4907 Lightning Dr, our expert technicians specialize in comprehensive heating and cooling solutions. We install and service high-efficiency furnaces, boilers, and air conditioners to keep your home comfortable year-round. Our team also offers ductless mini-split systems, indoor air quality solutions including air purifiers and humidifiers, and professional thermostat installation. Available 24/7 for emergencies, we provide honest, upfront pricing and prioritize your family's comfort and safety with every repair, maintenance visit, or new system installation.