Delivering the Best Products
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For more than 20 years, Key Heating & Air Conditioning, Inc., has been in the business of helping homeowners find the best residential heating and cooling systems for their homes.

From free home energy assessments to comprehensive maintenance and the installation of all types of systems, we are the company with the professional team to count on for all of your heating, air conditioning and air quality systems.


Key installs the following types of residential systems:

  • Heat Pumps  – Ground-source and water-source, air source 
  • Gas Systems –  (Natural and propane) warm-air furnaces and hot-water boilers 
  • Oil Systems  – Warm-air furnaces and hot-water boilers 
  • Electric Services 
  • Radiant Floor Heating  – Radiant floors and snow melting 
  • Convection Heating and Hydronic Coils 
  • Ventilation Custom  – Sheet metal 
  • Sheet Metal Fabrication
  • Ductless  – Wall- and ceiling-mounted air conditioners and heat pumps and mini-split systems 
  • Home Comfort Controls  – Wi-Fi controlled thermostats
  • Hot Water Heaters  – Gas, electric, and oil-direct and indirect-fired models, heat pump hot water 
  • Humidifiers/Filters
  • Dehumidifiers
  • Generators
  • Indoor Air Quality
  • Extended Warranties

We take great pride in our customer commitment by supplying the most current information regarding energy savings, safety and seasonal tips and how you can improve your monthly savings. Check out our website, blog and newsletter for the latest information.

If you would like to see a particular topic featured or have a story of your own you would like to submit, let us know. Our New Media Department welcomes your suggestions and comments.

Request an Appointment Online!

Key Heating and Air Conditioning, Inc., offers an online appointment request form to schedule a free home consultation with one of our qualified, comfort consultants. Just click here.

Once your request is received, a Key staff member will contact you to complete the appointment process. And because we at Key value customer service above all else, a Key staff member will contact you to remind you of your appointment 24 hours in advance.

Contact us at 603-436-8811 or 844-KEY-HVAC.