Your Comfort is Our Business
At Key Heating & Air Conditioning, we pride ourselves on being a family-owned, award-winning company that has been providing top-notch heating and cooling services to New England homeowners since 1993. Our team of expert technicians, project managers, and installation crew have a combined trade experience of over 150 years in all aspects of heating, cooling, and air quality.
Our Mission
Our mission is to provide comfort solutions with the most current technical knowledge and provide excellent customer service, with the goal of gaining a customer for life. We strive to achieve 100 percent customer satisfaction with the service, products, and expertise we offer on every single job.
Services Offered
We offer a wide range of services to meet all your heating, cooling, and air quality needs. From free home energy assessments to comprehensive maintenance and the installation of all types of heating and cooling systems, ventilation, and air quality systems, we have the professional team to count on. Our services include:
- Heating and cooling system installations, repairs, and maintenance
- Air filtration and humidifier installations
- Thermostat installations and repairs
- Geothermal home generators and financing options
- Mitsubishi financing options
- Indoor air quality solutions
- Replacement filters and more
About Our Team
Our team is made up of factory-trained technicians, project managers, and installation crew who have a combined trade experience of over 150 years. We pride ourselves on our teamwork, both on and off the job. Our technicians undergo regular training classes to ensure they have the most up-to-date knowledge when installing and repairing heating and cooling system equipment and air quality equipment in your home.
Why Choose Us?
At Key Heating & Air Conditioning, we are committed to providing the best customer service available at competitive prices, including 24/7 emergency service and free estimates. We are a green company that recycles, manages refrigerants, and uses environmental refrigerants. Our service technicians, who are EPA-certified, install high SEER equipment. We also sell, install, and service alternative energy home heating and cooling systems, including geothermal heating and cooling and solar thermal.
Excellent Customer Service and Professionalism
The majority of reviewers praised the exceptional customer service and professionalism of the technicians and staff from Key Heating & Cooling. Many reviewers mentioned that the technicians were courteous, knowledgeable, and efficient in their work. They were also impressed with the explanations provided by the technicians about the systems and services.
Positive Experience with Installation and Maintenance
Many reviewers had a positive experience with the installation and maintenance of their heating and cooling systems. They appreciated the attention to detail, cleanliness, and professionalism of the technicians. Some reviewers mentioned that the technicians went above and beyond to ensure that the systems were installed correctly and that they were satisfied with the service.
Timely and Efficient Service
Reviewers praised the timely and efficient service provided by Key Heating & Cooling. They appreciated the prompt response to their calls and the quick resolution of issues.
Highly Recommended
Many reviewers highly recommended Key Heating & Cooling to others, citing their positive experiences and the excellent service they received.
Negative Experiences
However, two reviewers had negative experiences with Key Heating & Cooling. One reviewer had issues with the installation of their A/C system, and the other had problems with the service department. They expressed frustration with the lack of communication and resolution of their issues.

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