Welcome to TE Certified Electricians, Heating & Cooling in Roswell, GA! Our top-notch licensed electricians in Roswell and our factory trained HVAC technicians to know the latest and best on anything and everything related to your home’s electrical, heating & cooling systems, including furnace repair, air-conditioning tune-ups, thermostat replacement, and more. Whatever your project, we can help! If you live in Roswell, chances are we have done work on your street, or for your neighbor. We know the homes in this area, the local codes, and the common repair issues.