How Much Does AC Repair Cost in Northern Virginia?
A straight answer on what AC repairs actually cost in Loudoun and Fairfax County in 2026, and when it makes more sense to replace the unit instead.
What Affects the Price of an AC Repair
AC repair costs in Loudoun and Fairfax County depend on what broke, how old the system is, and how hard the part is to reach. A diagnostic visit usually comes first so the tech can confirm the actual problem instead of guessing. The ranges below reflect typical costs across Northern Virginia in 2026, but your exact quote will depend on your unit's brand, age, and refrigerant type.
Capacitor Replacement: $150 to $400
A bad capacitor is one of the most common reasons an AC unit won't start or the fan hums but won't spin. It's also one of the cheaper fixes, usually landing between $150 and $400 installed depending on the capacitor size and unit brand. If the rest of the system is healthy, this repair is almost always worth doing.
Fan Motor Replacement: $350 to $800
Condenser fan motors and blower motors wear out with age, especially once a system passes the 8 to 10 year mark. Replacing one typically runs $350 to $800, depending on whether it's a standard motor or a variable-speed ECM motor, which costs more up front but often saves on energy. A failing motor left alone can lead to compressor damage, so it's not a repair worth putting off.
Refrigerant Leak Repair: $400 to $1,800+
Refrigerant leaks have the widest price range because cost depends on where the leak is and what refrigerant your system uses. A simple leak at a fitting or valve might run $400 to $700 to find, seal, and recharge. A leak inside the coil, or a system still running older R-22 refrigerant, can push the bill toward $1,500 to $1,800 or more, since R-22 is being phased out and costs far more per pound than modern R-410A.
Compressor Replacement and When Repair Stops Being Worth It
The compressor is the most expensive part in the system, and replacing one usually costs $1,500 to $3,000 or more depending on unit size and whether it's still under manufacturer warranty. When a compressor fails on a system that's already 10 to 15 years old, that repair cost often gets close to what a new, more efficient system would run. A common rule of thumb: if a single repair costs more than 40 to 50 percent of a replacement on an older unit, replacement usually makes more sense. Getting a clear, honest look at both numbers before committing to a big repair is a fair thing to ask for.
Common questions
Is it worth repairing an AC unit that's over 10 years old?
It depends on the repair cost and the unit's overall condition, not just its age. A $200 capacitor fix on a 12 year old unit that otherwise runs fine is worth doing. A $2,500 compressor repair on that same unit is worth comparing against the cost of replacement first.
Why do refrigerant leak repairs cost so much more than other repairs?
The price swings based on where the leak is and what refrigerant the system uses. A leak inside a coil takes more labor to reach than one at a valve, and older R-22 systems cost more to recharge since that refrigerant is being phased out and is harder to source.
Can I just have the refrigerant recharged instead of fixing the leak?
Refrigerant doesn't get used up, it leaks out, so a recharge without a repair just means you'll be low again in a few months. Any tech worth calling will want to find and fix the leak first, not just top off the charge.
Have a question about your system? Just call.
Call for same-day service or send a request for an honest, no-pressure quote.