A Heating & Cooling Company You Can Trust WE GET THE JOB RIGHT THE FIRST TIME!  That’s our motto and our mission. And judging by the level of our repeat business, we must be living up to that goal. Locally-owned Gemini Heating & Cooling has proudly served the residents and businesses of Fairfield County and beyond for 12 years. We're here to make sure you get the most out of the heating and cooling systems in your home or office. How We Can Help You Service In the event your equipment needs servicing, you can have peace of mind knowing we're nearby and only a phone call away. We offer emergency service and free written replacement quotes. Installation Need a new system? We can replace any type of heating or cooling system in your home or light commercial building. We put in only high-efficiency comfort systems designed for cost-effectiveness. New cost-saving technologies You can trim up to one-third off heating and cooling in offices up to 20,000 feet with new HVAC systems. Contact us about the latest technology for your particular needs.