Business Details
33 Years
experience
Emergency
services
Trusted HVAC Solutions for New England Homes
Since 1993, Key Heating & Air Conditioning has been a trusted provider of comprehensive HVAC solutions for New England homeowners. As a family-owned, award-winning business, we combine over 30 years of industry experience with a team of factory-trained technicians who collectively bring more than 150 years of expertise to every project. Our commitment to excellence is demonstrated through 24/7 emergency service, free energy assessments, and specialized knowledge in geothermal and solar thermal systems. We maintain rigorous EPA certification standards while offering financing options to ensure accessibility to our high-efficiency heating and cooling solutions. Our team undergoes continuous training to stay current with evolving technologies, including smart thermostat integration and advanced air purification systems.Recognized by the Better Business Bureau with an A+ rating, we prioritize customer satisfaction through transparent communication and comprehensive service agreements. Our environmental stewardship is evident in our use of eco-friendly refrigerants and commitment to recycling practices. With service locations in Exeter and Alton, NH, we serve the NH Seacoast, Lakes Region, and Southern ME. Our Safety & Efficiency Membership Program provides year-round maintenance benefits, while our custom service agreements accommodate complex residential systems. Through regular community engagement and employee development initiatives, we maintain our position as a leader in residential HVAC services across New England.
Services
Heating Solutions
Cooling Solutions
Geothermal Systems
Ductless Solutions
Radiant Heating
Hot Water Solutions
Thermostat Solutions
Indoor Air Quality
Backup Generators
Electrical Services
Details
- Year established: 1993
Highlights and features
- 30+ years of combined experience in residential HVAC systems
- 24/7 emergency service with no after-hours fees
- Better Business Bureau A+ rated since 1993
- Specialized geothermal system expertise with federal tax credit guidance
- Factory-trained technicians with ongoing professional development
Associations and certifications
- Better Business Bureau (BBB) A+
What people say
Great Support
Very knowledgeable
Outstanding
Thorough job
Best I have had
Services
Heating Solutions
Our heating services include system installation, repair, and maintenance for furnaces, boilers, and heat pumps. With over 25 years of experience, we provide energy-efficient solutions that keep homes warm during New England winters. Our factory-trained technicians ensure optimal performance through regular maintenance and emergency repairs.
Cooling Solutions
We offer comprehensive cooling services for central air and ductless systems. Our 30+ years of expertise ensures efficient installation and repair of HVAC units. Regular maintenance prevents breakdowns during summer months while our emergency service addresses urgent cooling needs across NH and Southern ME.
Geothermal Systems
As New England's leading residential geothermal provider, we install and service environmentally-friendly heating and cooling systems. These systems reduce household emissions by up to 70% using earth's constant temperatures. We guide customers through federal tax credit programs for geothermal installations.
Indoor Air Quality
Our air quality solutions remove pollutants like mold spores and pet dander from home environments. We install advanced purification systems that address dust, pollen, and bacteria concerns. Regular maintenance ensures continued clean air circulation throughout residential spaces.
Backup Generators
We provide sizing and installation of Generac backup generators with certified electricians. These systems ensure uninterrupted power during outages. Our technicians handle complete installation processes to maintain home functionality during emergencies.
Questions
What HVAC services do you offer for residential customers?
We provide complete heating, cooling, and air quality solutions including installation, repair, maintenance, and emergency services for all HVAC systems.
Do you offer emergency HVAC service?
Yes, we provide 24/7 emergency service with no after-hours fees for urgent heating and cooling needs.
Are financing options available for HVAC installations?
Yes, we offer financing options with approved credit for heating, cooling, and geothermal system installations.
What areas do you serve?
We serve NH Seacoast, Lakes Region, and Southern ME with comprehensive HVAC solutions and emergency services.
Do you offer maintenance programs for HVAC systems?
Yes, our Safety & Efficiency Membership Program provides annual maintenance, discounts, and priority service scheduling for HVAC systems.
What makes your geothermal systems unique?
As New England's largest residential geothermal provider, we offer systems that reduce emissions by up to 70% with expert installation and federal tax credit guidance.
Videos
