Key Heating & Cooling

Key HVAC has been servicing the heating & cooling needs of New Hampshire residents for over 25 years. We specialize in the service & installation of Geothermal, Ductless Systems, Snowmelt, High Efficiency Systems, IAQ, Smart Home Controls, and traditional heating and cooling systems. Other services include 24/7 Emergency Service, Annual Maintenance Service Memberships, Special Financing, Equipment Registrations & Warranty. Let us be ''Your Key to Comfort''

• Heating & cooling maintenance, repairs and service.
• Full installation department.
• Financing options available.
• Service membership contracts.
• Geothermal, ductless mini-splits, radiant flooring, snow melt, indoor air quality, smart controls.