I had to have my entire ac/heating system replaced recently. The crew at Jacobs called me back quickly and scheduled the job in a timely manner. In a span of two days, they had my entire new unit and system installed, up and running. They took care of disposing of the old unit as well. Outstanding work and work ethic. The entire crew was pleasant, professional and knowledgeable about their products. They did absolutely fantastic work and even left my basement in better shape than they found it, cleanliness wise. I could not be more pleased. Super reasonable pricing for stellar work. Honestly, the best in Southern Illinois and surrounding areas. I highly HIGHLY recommend Jacobs Air Conditioning and Heating. Cheryl