No heat or no AC, we pick up.
Furnace, air conditioner and heat pump repair across Northern Virginia, with a live person on the phone around the clock.

When a system quits, it usually picks the worst week to do it. A furnace goes out in a January cold snap, or the AC starts blowing warm air in the middle of a humid Virginia August. Call (571) 910-9901 and a real person answers, any hour, any day.
Our techs find the cause first, then explain your options in plain language, and most repairs get done right there on the first visit. If the system is old enough that repair money would be wasted, we will tell you that too, and leave the choice to you.
What the job includes
- Gas and electric furnaces that won't light, short-cycle or blow cold
- Central air conditioners and heat pumps that run but don't cool
- Refrigerant leaks, bad capacitors, failed contactors and fan motors
- Air handlers and blowers, including closet units in condos and townhouses
- Thermostat problems and wiring faults
- Frozen coils, clogged condensate drains and water leaks from the unit
- Emergency service on nights and weekends
Signs it's time to call
- Warm air from the vents with the AC set to cool
- The fan won't run, or it never shuts off
- Banging, grinding or squealing when the system starts
- Ice on the outdoor unit or the copper lines
- Water around the furnace or air handler
- Your energy bill jumped and the weather didn't
What it costs
Every visit starts with a diagnostic fee, which covers finding the cause and walking you through what it will take. You get the price for the repair before we start, and nothing happens until you approve it.
From our jobs
From a customer
"AC broke and 911 was the first available despite already being late in the day. They figured out the issues quickly and even had the right part."Ivan R., Thumbtack review
No heat, no cooling, or no hot water?
Call and a real person picks up, any hour. We find the cause and give you your options before any work starts.
It depends on the day, but same-day service is common. One customer had us out two hours after calling. Call (571) 910-9901 and we will give you the real window.
Furnaces and air conditioners usually last 8 to 12 years before efficiency drops and repairs pile up. If yours is in that range and needs a big repair, we will show you both numbers and you decide.
Call for the current rate. Members on our Economy plan and our four-visit plan pay no extra for night or weekend emergency calls.
Tell us what the system is doing.
Call, email or send the form and we will set a time. If the heat is out in winter, the AC is down in a heat wave, or water is coming from the unit, call. A live person answers 24/7.
- Phone(571) 910-9901
- Other lines(703) 772-8384 · (571) 524-0276
- Emailinfo@911air-care.com
911aircare@gmail.com - OfficeMon to Sat, 8:00 am to 5:30 pm. Phone and emergency service 24/7.
- Address1210 Autumn Pl, Herndon, VA 20170



