Air quality in your home is a prime concern for you and for us. At Key Heating and Air Conditioning, we understand that as more houses are built airtight it is even more essential that you address the air quality.


Dust, dirt, pollen, mold, bacteria, and algae are pulled in by your HVAC system to your home and breathing area. Key Heating & Air Conditioning Inc. install air purifiers that will remove pollutants, including mold spores and pet dander, from the air inside your home.


A great option for those who suffer from allergies or asthma, whole-home air purifiers are installed as part of your home’s heating and cooling system. These home air cleaners remove polluted air from throughout your entire home.


What Key Offers

  • Duct cleanings

  • Dryer vent cleanings

  • HEPA filtration systems

  • High Efficiency Air Cleaners

  • Humidifiers/Dehumidifiers

What Is Air Duct Cleaning?

Routine cleaning of your HVAC system ducts will improve the air quality, which is especially critical for those who suffer from seasonal allergies. Professional technicians use state-of-the-art equipment to clean and sanitize the HVAC system’s ductwork in your home.



  • Air quality specialists remove and hand clean all of the return grills in your HVAC system.



  • Contaminants are broken loose from your ductwork with gentle fiberglass brushes.



  • The home’s entire ductwork system is vacuumed, to ensure all contaminants are removed.


Final Step

  • Grills and registers are returned back to their original locations



Why Clean Your Ducts?

The American Lung Association has advised that microbes and fungi thrive in improperly maintained air ducts, air conditioners, and furnaces. They suggest cleaning air conditioners, air ducts, heat exchangers and chimney systems regularly.

Brands We Carry

  • Honeywell

  • Aprilaire

  • General Air

  • Venmar

  • Abatement Technologies

  • Nortek

Contact Us

Phone: 603.436.8811

Text:     938.444.4537

Email Us


8 Continental Dr. Exeter, NH 03833

6 Central Ave. Wolfeboro, NH 03894


Mailing Address

8E Continental Dr.

Exeter, NH 03833


© 2019 by Key Heating & Air Conditioning Inc.