Garneski Air Conditioning & Heating Co With more than 31 years in the heating and cooling repair, maintenance, sales and installation business in the Northern Virginia area, Garneski Air Conditioning and Heating is dedicated to providing the best possible heater repair, sales, service and installation or air conditioning repair, sales service and installation for you and your family. You can count on us to provide you with an HVAC system and solution that fits your unique needs. Since we’ve installed, repaired serviced and maintained many systems in the Northern Virginia area, we’ve earned the reputation for doing the job right the first time.