HVAC Repair & Installation in Fairfield County, CT

Comfortable, efficient living starts with a system that works. For 50 years, Celco’s NATE-certified technicians have handled heating, air conditioning, water heaters, and indoor air quality across Stamford, Fairfield, Westport, and beyond — with upfront pricing and 24/7 emergency repair when you need it.

Get in touch with an expert who can guide you step by step.

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Reliable HVAC Services

For Stamford, Trumbull, Westport, Fairfield, CT & Beyond

Welcome to Celco Heating and Air Conditioning! We’ve been providing quality HVAC services for 50 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, indoor air quality, tank and tankless water heaters, and more. From new installation and maintenance to repair and replacement, we’re the team to call. Contact us today for service in Stamford, Stratford, Norwalk, Darien, Westport, Fairfield, Trumbull, Monroe, Milford, Shelton, CT, and beyond.

Great service is our priority

We are dedicated to making sure that you are 100% happy with all of our services. We provide all of our pricing up front so that there aren’t any surprises for you. We offer 24/7 emergency repair services and our lead technicians have many combined years of professional experience.

We are fully licensed and boast an A+ rating with the Better Business Bureau. Call us today for heating repair, air conditioning installation, and water heater installation or to find out more about our other services.

How We Can Help

Since 1976, CELCO has helped Connecticut homeowners find dependable comfort solutions suited to their homes, lifestyles and budgets. Our experienced technicians repair, maintain and install furnaces, boilers, heat pumps, ductless systems, central air conditioning and other home-comfort equipment.