AC repair in Chantilly.
AC and heat pump repair in Chantilly, 20151 and 20152, from our shop on Lafayette Center Drive. Priced before anyone picks up a tool.
- Prices in writing, first
- Common parts on the truck
- Dedicated HVAC team
Get your AC repair priced
In our home town, most AC calls are about the system’s age.
Most of 20151 went up in the 1980s and 90s, so most houses there are on their second or third air conditioner, and it’s close to an even split between electric heat, usually a heat pump, and a gas furnace with a separate AC.
South Riding, in 20152, is younger: the median house went up in 2006, so a lot of those systems are original and pushing 20 years. A unit that old may still hold R-22, the refrigerant that stopped being made in 2020; once it leaks, topping it up stops making sense and the talk turns to repair against replace.
Nearly half the South Riding homes are townhouses, with the condensers lined up a few feet apart out back. Units that close breathe each other’s hot air, and a coil matted with grass clippings overheats sooner, so on a townhouse call the coil gets checked before anyone talks refrigerant.
In 20151, close to half the houses heat with electricity, so the outdoor unit is a heat pump working twelve months a year. It puts winter hours on the same contactor and capacitor an air conditioner only uses in summer, which is one reason those parts ride on our truck.
What’s cooling the houses across Chantilly.
Census figures for the owner-occupied homes in each place, and what that usually means for the air conditioning.
| Place | Median home built | Most homes are | Heated with | What the cooling usually is |
|---|---|---|---|---|
| South Riding | 2006 | single-family houses, about 5 in 10 | gas, about 8 in 10 | Townhouse streets: condensers side by side, air handler in a closet or attic. |
| Chantilly | 1987 | single-family houses, about 6 in 10 | gas, about 5 in 10 | 1980s and 90s houses, most on their second or third system. |
Chantilly houses, by the numbers
From the Census Bureau’s 2020 to 2024 survey, owner-occupied homes unless it says otherwise.
20151, the Fairfax County side
- Median home built1987 Census
- Built before 1980about 2 in 10 Census
- Built since 2000about 2 in 10 Census
- Most homes aresingle-family houses, about 6 in 10 Census
- Heated withgas, about 5 in 10 Census
- Rentedabout 2 in 10 Census
- Electric heat here usually means a heat pump, so the outdoor unit works all year and an AC problem is often a heating problem waiting for January.
20152, the South Riding side
- Median home built2006 Census
- Built before 1980hardly any Census
- Built since 2000about 8 in 10 Census
- Most homes aresingle-family houses, about 5 in 10 Census
- Heated withgas, about 8 in 10 Census
- Rentedabout 2 in 10 Census
- Gas heat means a furnace inside and a separate air conditioner outside, sharing one blower, so a tired blower shows up in both seasons.
- A lot of original systems here are 15 to 25 years old; before 2010 most ran R-22, which is no longer made.
What AC repair costs in Chantilly.
The same price book as our AC repair page. The diagnostic visit is about $99, and the common parts ride on the truck, so most of these get fixed on the first visit.
- Run capacitor replaced$240 to $370
- Contactor replaced$290 to $425
- Condensate drain cleared$175 to $420
- Refrigerant topped up$190 to $740
- Blower wheel pulled and cleaned$300 to $440
- Refrigerant leak found and repaired$1,850 to $2,700
- Repair diagnostic visitabout $99
Often same-day, and we will tell you honestly when we can get there.
With Comfort+ membership, any service is 15% off, and the cooling and heating maintenance visits are part of the membership.
What a failing AC in Chantilly usually does.
A stain on the ceiling under the attic
In a South Riding townhouse the air handler often sits in the attic or a top-floor closet, so a clogged condensate line shows up as a stain on the ceiling below it. A float switch that shuts the system off when the pan fills is cheap insurance; if yours tripped, that’s why the AC stopped.
The heat pump is icing up in summer
Ice on the outdoor lines in July means low refrigerant or starved airflow. Shut it off to thaw and call; running it iced can take out the compressor.
It’s the original system
A house from the 2000s often still has its first air conditioner. Anything installed before 2010 usually runs R-22, which hasn’t been made since 2020, so a leak on one is a repair-or-replace question.
How to pick the best AC repair company in Chantilly.
Questions worth asking anybody who comes out, us included.
Will they read the system’s age before quoting a big repair?
The data plate on the outdoor unit gives the year. On a 2006 system that’s the first thing to read, because it decides whether a $1,850 to $2,700 leak repair is worth doing.
Do they publish prices?
A company that prints what a capacitor or a contactor costs has already told you the number. One that won’t say until the tech is in your driveway hasn’t.
Do they measure before they sell refrigerant?
A healthy system drops the air somewhere around 16 to 22 degrees across the indoor coil. Low refrigerant means a leak, and topping it up every summer is the expensive way to find that out.
Will they tell you when it’s the end of the road?
Some repairs aren’t worth doing on a 20-year-old system. The good answer shows you the repair price and the replacement price side by side and lets you pick.
What our customers say.
Arrived within an hour on a Sunday morning and provided great service.
Called SwiftPro around 5 am and their electronic system scheduled an appointment for us same day.
Edis quickly identified the problem and got the system working which will allow me to have AC while preparing to replace the 19 year old unit. He did great.
5.0 stars across 884 Google reviews. Read them on our reviews page.
AC repair questions from Chantilly.
My AC is from 2006. Repair or replace?
Depends on the repair. A capacitor ($240 to $370) or a contactor ($290 to $425) is worth replacing on a unit of any age. A refrigerant leak on an R-22 system that old usually isn’t, because the refrigerant is no longer made and the repair alone runs $1,850 to $2,700. We’ll show you both numbers.
Is the Loudoun side of Chantilly any different for AC work?
Not for a repair. For a replacement, the permit comes from Loudoun County in 20152 instead of Fairfax County in 20151.
Do you work on heat pumps and gas furnaces in Chantilly?
Both, and here it’s close to half and half. A heat pump’s outdoor unit heats as well as cools, so on a summer call we check its defrost board and reversing valve too. With a gas furnace and a separate AC, the shared part is the blower, so that gets checked either way.
How much does AC repair cost in Chantilly?
The diagnostic visit is about $99. The common repairs: a run capacitor $240 to $370, a contactor $290 to $425, a condensate drain cleared $175 to $420, refrigerant topped up $190 to $740. A refrigerant leak repair runs $1,850 to $2,700.
Should I repair it or replace it?
Fix the cheap parts on almost anything. Think twice about a big repair on a system over 15 years old, and about any leak on an R-22 system. The HVAC estimator prices a new system in about a minute, so you can put the two numbers side by side.
AC repair in the towns next door.
- AC repair in Centreville
- AC repair in Herndon
- AC repair in Aldie
- AC repair in Oakton
- AC repair in Reston
More from SwiftPro in Chantilly
Tell us what your AC is doing.
Call, or book online and pick a window. The tech prices the repair from the book before starting, and if it’s the end of the road you’ll hear that first.
SwiftPro Heating, Cooling & Plumbing is a licensed, BBB Accredited (A rating), independently owned heating, cooling and plumbing company in Chantilly, serving Chantilly and the rest of Northern Virginia. Virginia contractor license #2705192276. 5.0 stars across 884 Google reviews. SwiftPro maintains a dedicated HVAC team and a dedicated plumbing team.
SwiftPro Heating, Cooling & Plumbing, 4230 Lafayette Center Dr, Suite N, Chantilly, VA 20151, (703) 997-9757. Book online, read our reviews, or see every town we serve.