Snell Heating & Air Conditioning is your go-to choice for protecting your family’s safety and your home’s comfort. If you need emergency furnace or air conditioner repair, we have more trucks and techs, so we can get to you quicker, offering same day and next day service in Arlington, Alexandria, Fairfax, McLean & the surrounding areas in Fairfax County; as well as Sterling, Ashburn & the surrounding areas in Loudoun county. Check out our complete list of cities served. With our unique 7-7-7 service you get the same low rate from 7AM to 7PM, 7 days/week!