Chantilly, VA
HVAC Repair in Chantilly, VA
Heat pump losing ground in July, a furnace that starts and stops every few minutes, or an older system you're wondering about? We repair heating and cooling across Chantilly and give the price first.
Appliance Surgeon offers same-day and next-day visits to Chantilly homes and buildings. The $75 diagnostic visit is credited to the repair, the price is quoted before any work starts, and every repair carries a 90-day parts-and-labor warranty.
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HVAC Repair
Schedule service in Chantilly
Same-day and next-day visits.
Open 7 days until 10 PM (Sundays from 10 AM)
Diagnostic visit: $75, or $115 for a double unit.
Credited toward your repair when you approve the quote.
90-day warranty on parts and labor, and a written quote before any work starts.
Chantilly notes
Heating and cooling in Chantilly houses
Much of Chantilly was built in the 1980s and 1990s, so many houses here are on their second heating and cooling system, or getting close to needing one.
Two-story houses often have a single system serving both floors, and the upstairs runs warmer in summer. Some have a zoning system with motorized dampers; when a damper sticks, one floor gets too much air and the other too little.
Short-cycling, where a system starts and stops every few minutes, can come from a dirty filter, a thermostat in a poor spot, a flame sensor on a furnace, or a system that's simply too large for the house. Each needs a different fix, so it's worth diagnosing before replacing parts.
Keep supply and return vents clear of furniture and rugs. A blocked return starves the system of air and can freeze the coil in summer.
Heating season
Furnace and heat pump repair in Chantilly
We repair gas furnaces, heat pumps and air handlers in Chantilly, VA. What the common heating calls usually come down to:
- Furnace tries to light, then shuts off. Usually a dirty flame sensor, a worn igniter or a pressure switch fault. Note how many times it retries before it locks out.
- Heat pump runs all day but the house stays cool. Often low refrigerant, a stuck reversing valve or a failed outdoor fan or capacitor. Steam off the outdoor unit during a defrost cycle is normal.
- No heat at all. Check the thermostat mode and batteries, the furnace power switch, the breaker and the filter. If you smell gas or a carbon monoxide alarm sounds, leave the home and call your gas utility or 911 from outside.
Repair details
Before the technician arrives
The checklist our technicians follow on every visit is on the HVAC Repair page.
Before the visit:
Replace only the filter if needed, note thermostat settings and stop operation if you smell burning or see water around equipment.
Helpful guides
HVAC Repair guides from our technicians
Before you book in Chantilly, VA, these guides explain the most common symptoms, which checks are safe to try yourself, and when a technician should take over. All guides.
More services in Chantilly, VA
What else does Appliance Surgeon repair in Chantilly, VA?
Refrigerators, freezers, washers, dryers, dishwashers, ovens, stoves, cooktops, microwaves, range hoods, wine coolers and HVAC systems, all in Chantilly, VA; pick the one you need.
Refrigerator Repair
in Chantilly, VAWasher Repair
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in Chantilly, VAFreezer Repair
in Chantilly, VAOven Repair
in Chantilly, VACooktop Repair
in Chantilly, VAStove Repair
in Chantilly, VAMicrowave Repair
in Chantilly, VARange Hood Repair
in Chantilly, VAWine Cooler Repair
in Chantilly, VA
Nearby coverage
Where else do we repair heating and cooling systems near Chantilly?
We also provide HVAC repair in Reston, VA, HVAC repair in Fairfax City, VA, HVAC repair in Fairfax Station, VA, HVAC repair in Vienna, VA and HVAC repair in Tysons, VA.
This location is part of our HVAC repair coverage across the DC metro area. See all appliance repair services in Chantilly, VA.
Neighborhoods we regularly cover in Chantilly, VA: Greenbriar, Brookfield and Sully Station.
Frequently asked questions
HVAC Repair in Chantilly, VA FAQ
Can someone come fix my AC or furnace today in Chantilly?
We're based in Alexandria, about 22 miles from Chantilly. Same-day and next-day appointments are available when the technician route has open windows; call or book online for the earliest option. Urgent heating and cooling visits cost the same standard rate any day of the week, evenings included, right up to 10 PM. Hours run 8 AM to 10 PM Monday through Saturday and 10 AM to 10 PM on Sunday.
Many HVAC repairs are completed in a single visit once the technician has diagnosed the fault and confirmed the parts on hand. If a specific part has to be ordered, we schedule a short return visit to finish the job.
What does HVAC repair cost in Chantilly?
Appliance Surgeon charges $75 for the diagnostic visit, or $115 for a double unit (such as a double wall oven, washer-dryer combo or stacked laundry), and the fee is credited toward the repair if you approve the quote. Capacitors, igniters and sensors are common, affordable repairs; compressors and refrigerant work cost more. Every visit runs the same way - diagnosis, then a firm quote you approve before repair. Urgent no-heat and no-cooling calls in Chantilly, VA get priority scheduling. Typical HVAC price ranges are in our repair cost guide.
What heating and cooling problems do you fix in Chantilly?
Common calls include AC not cooling, heat not working, thermostat problems, weak airflow, system short cycling and unusual HVAC noise. The exact cause is confirmed during diagnosis.
Why is my upstairs so much warmer than downstairs?
Heat rises, and one system serving two floors often can't balance them perfectly. Partly closing a few downstairs supply vents and running the fan continuously can help. If your system has zones, a stuck damper or a failed zone control could be the cause.
Should I repair or replace an older heat pump?
It depends on the repair and the age. A capacitor, contactor or fan motor is worth fixing on almost any system. A failed compressor or a major refrigerant leak on a system past about 15 years old is where replacement deserves a serious look.
Should I try to fix the system myself first?
Two safe checks solve a surprising share of calls: fresh thermostat batteries and a clean filter - a clogged filter can shut a system down on its own safety limits. Beyond that, leave it to a technician. And if you ever smell gas, leave the home and call your gas company or 911 before anything else.