Welcome to Celco Heating and Air Conditioning! We’ve been providing quality heating and air conditioning services in Fairfield, CT for over 40 years. We take pride in designing and developing unique HVAC solutions to meet any lifestyle and budget. Our NATE–certified technicians offer a wide range of services including oil–to–gas conversion, boilers, furnaces, radiant heating, air conditioning, geothermal, indoor air quality, tank and tankless water heaters, and more. From new installation and maintenance to repair and replacement, we're the experts to call.