About Twin Air


Twin Air - The Best Heating, Cooling & HVAC Contractor in Northern Virginia.  We Service, Install & Repair Most Makes and Models of HVAC Systems.  Now Offering Energy Efficiency Consulting - Have You Considered a Geothermal or Solar System Recently?




Manassas - Woodbrigde - Clifton - Gainesville - Fairfax, VA




Manassas, VA Heating and Cooling

Twin Air LLC

Twin Air LLC of Manassas, VA provides heating and cooling services to all of northern Virginia, including Fairfax, Clifton, and Woodbridge. We sell complete heating, air conditioning, and geothermal systems by Lennox, Trane and others -- and we service and repair all makes and models. We guarantee our parts for 1 year, and our labor for 90 days.

Learn More About Twin Air LLC:

  • Heating products - Oil and gas furnaces, fireplaces, generators, boilers, garage heaters
  • Air conditioning - Central air, air purification, filtration, air quality and comfort controls
  • Geothermal and solar - Geothermal ground source heat pumps by Lennox and Florida

We specialize in custom duct design and installation, or electronic zoning, which allows you to control the temperature of one room apart from the rest of your house. This saves you energy and money on electric and gas…and could even qualify you for energy-saving tax credits.

Contact Twin Air LLC today at 703-468-1189 to schedule your free in-home estimate!


Manassas, VA Heating Products


Twin Air LLC of Manassas, VA has been a supplier of Lennox heating products throughout northern Virginia for 20 years. In addition to sales and installation, we offer annual service agreements and one-time repair services on all makes and models of heaters, with no charge for the trip itself.

Our Heating Products Include:

  • High efficiency gas furnaces
  • Home heating systems
  • Oil furnaces
  • Gas fireplaces and logs
  • Gas and natural gas generators
  • Oil-fired or gas-fired boilers
  • Garage heaters

View our large selection of Lennox heating products at www.lennoxdealer.com/twinairllc.



Manassas, VA Air Conditioning


Twin Air LLC of Manassas, VA sells and installs Lennox air conditioning products throughout northern Virginia. Including packaged units which also include heating, our air conditioning systems come with a 1 year parts warranty. Ask us about how to get tax credits for purchasing high efficiency products!

Our Air Conditioning Products Include:

  • Central air systems
  • Indoor air quality systems
  • Air purification
  • Air filtration
  • Air cleaners
  • Comfort controls
  • Packaged units



Manassas, VA Geothermal and Solar


Twin Air LLC of Manassas, VA provides northern Virginia with energy-efficient geothermal and solar heating products. Save energy and money by heating and cooling your home with these natural systems. Our well-trained technicians have more information.

Our Geothermal and Solar Products Include:

  • Ground source heat pumps
  • Florida heat pumps
  • Solar systems by Lennox
  • Qualifying for energy-saving tax benefits