Chiasson's Heating and Air Conditioning is proud to be committed to your total home comfort. More than anything we want you to feel confident in choosing Chiasson's Heating and Air Conditioning for your home. Chiasson's offers the BEST price and warranty for residential & commercial, heating and air conditioning. Our Customers become our Friends! We offer free on-site estimates as well as maintenance and service contracts to new and existing customers. During an emergency, don't hesitate to call. We have 24-hour emergency heating and air conditioning repair service. 24-hour Emergency Service on Oil & Gas Furnaces.