Beware of their bad business practices
O'Callaghan Heating and Air Conditioning is not a reputable company. During a routine maintenance call, a new service technician allowed more than 5 pounds of Freon to escape. Instead of admitting his mistake, the company said my unit was leaking Freon and had to be replaced. Another company replaced the missing Freon, checked for leaks several weeks later, and found nothing wrong with the system. Now, the owner, Dennis Roach will not respond to my requests for a refund of $450 it took to replace the Freon. Do not do business with this company.