About Cosby Heating and Cooling Knox County's Expert Geothermal Source If you are looking for a company that has a complete in-house operation and a documented track record for providing homeowners with all of their WaterFurnace Knox County geothermal heating and cooling needs, you can trust Cosby Heating and Cooling. Our total in-house operation includes... planning assistance. complete comfort system installation. routine service and maintenance. emergency repair. energy-saving advice and consultation. In the Knox County area, total customer satisfaction is our highest goal and our highly qualified professional staff will see to that.Besides, when you select the best heating and cooling system on the market today, it is difficult to go wrong.We will see to it that your new system will meet all of your expectations, helping you to reduce your energy costs and enhance your home's conditioning efficiency. Contact Cosby Heating and Cooling today to get a free estimate and a cost savings analysis for your home.