Heating & Air Conditioning

Since 1990, Shanahan’s Heating & Cooling, Inc. has been providing superior heating and cooling services throughout the Northern Virginia area, including Reston, Fairfax and Alexandria, VA. From system repairs to new, high-efficiency HVAC system installation, our goal is to keep you and your family comfortable all year long.

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Service & Maintenance

You never have to worry about your heating and air conditioning system failing with Shanahan's Heating & Cooling on your side. Our skilled technicians will handle your service needs for all makes and models, including licensed warranty and post-warranty repairs, and emergency response.

Seasonal Tune-Ups

Winter is here and we are feeling the cold! Do not wait to schedule your heating service in Fairfax, Reston, Alexandria, Arlington, or the surrounding area. Routine maintenance can help extend the life of your system and prevent unexpected breakdowns.

Upfront Pricing

We are happy to offer flat rate pricing; charging by the job, not by the hour. The price we quote before we start the work will be the price you pay.


We have partnered with the industry's leading manufacturers to bring you top quality heating and air conditioning equipment. We will work with you to select the best system for your home. You’ll use less energy, cut down on utility costs, and live in comfort! We specialize in:

  • Air Conditioners
  • Heat Pumps
  • Boilers
  • Thermostats
  • Furnaces
  • Ductless Systems
  • Oil to Gas Conversions

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I highly recommend this company. —Marianne C.