About Carlson Heating & AC, LLC Your Superior Geothermal Source in Manhattan If you are searching for a company that has a total in-house operation and a documented track record for assisting homeowners with all of their Manhattan geothermal heating and cooling needs, you can trust Carlson Heating & AC, LLC. Our total in-house operation includes... planning assistance. complete comfort system installation. routine service and maintenance. emergency repair. energy-saving advice and consultation. Our highly trained professional staff is devoted to the overall satisfaction of customers throughout the Manhattan area. After all, you've selected the optimum heating and cooling system available. We make sure each system will live up to the expectations of, improving your home's conditioning efficiency and helping you cut energy costs. Contact Carlson Heating & AC, LLC today to get a free estimate and a cost savings analysis for your home.