Water running down the wall under a head
In a radiator house cooled by ductless heads, a drip down the wall under one head is usually its condensate line, clogged or kinked. Switch that head off and call; it’s a cleaning, not a new unit.
Falls Church, Virginia
AC repair in Falls Church.
The diagnostic visit is $99, and a run capacitor replaced is $240 to $370 from our published price book.
Get your price in writing
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Rather talk now? (703) 997-9757
Air conditioner, heat pump and mini-split repair across Falls Church, City and county side, with the price from our book before anybody starts.
- Prices in writing, first
- Common parts on the truck
- Dedicated HVAC team
5.0 stars across 1,132 reviews
One of our HVAC technicians beside an outdoor unit at a Northern Virginia home, the vans at the curb.
Licensed and insuredVirginia Class A contractor #2705192276
24/7 emergency serviceOften same-day, and we will tell you honestly when we can get there.
Our own HVAC installersA dedicated heating and cooling team, separate from our plumbers
Price in writing firstYou see every option priced before anything is ordered
What it costs
What AC repair costs in Falls Church.
The same price book as our AC repair page. The diagnostic visit is $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
or $31/mo at 0% APR for 60 months
Repair diagnostic visit
$99
Monthly figures: 60mo @ 0% APR on each starting price, the whole price financed, on approved credit. Longer plans lower the payment and cost more in total. The lender sets the final terms. How financing works
Often same-day, and we will tell you honestly when we can get there.
With Comfort+ membership, $20 a month or $199 a year, the diagnostic visit is included, any service is 15% off, and the cooling and heating maintenance visits are part of the membership.
What’s different in Falls Church
Radiator houses, furnace basements and condo heat pumps, all in one Falls Church.
The median owner-occupied house with a Falls Church address went up somewhere between 1957 and 1980, depending on the neighborhood, and gas is still the main heat: about seven in ten City owners, and about eight in ten in Lake Barcroft. In those houses the cooling is an air conditioner outside and a furnace in the basement, sharing one blower and, often, ductwork first laid out for heat. When one of them runs all afternoon and the house never cools, the blower wheel and the indoor coil get looked at before anyone mentions refrigerant.
Falls Church is one of the two places, with McLean, where boilers are a regular part of our heating work. A house heated by radiators has no ducts for central air, so it’s mostly cooled by ductless mini-splits: an outdoor unit piped to a slim head high on each room’s wall. Those have their own short list of failures, starting with the little condensate line at each head that clogs and drips down the wall.
Bailey’s Crossroads runs the other way. Over six in ten of its homes are in big apartment and condo buildings, and 54 percent of its owners heat with electricity, which here mostly means a heat pump doing both jobs, cooling all summer and heating all winter. Seven Corners and Idylwood are mostly buildings and townhouses too. In a building, tell us where the condenser sits; one on a roof the association controls means arranging access first.
Replacing a system is where the City line shows. The City of Falls Church lets a single-family owner swap an AC or heat pump with no permit at all. Across the line, Fairfax County counts the same swap as mechanical permit work, with an A2L certification on file for any system using the newer refrigerants. For a repair, neither office is involved.
Neighborhood by neighborhood
What’s cooling the houses across Falls Church.
Census figures for each place, and what that usually means for the air conditioning. Median year built and heat count owner-occupied homes only.
| Place | Median home built | Most homes are | Heated with | What the cooling usually is |
|---|---|---|---|---|
| West Falls Church | 1957 | single-family houses, about 6 in 10 | gas, about 7 in 10 | Older houses on their third or fourth system, usually a gas furnace with a separate AC. |
| Bailey’s Crossroads | 1980 | condo and apartment buildings, about 6 in 10 | electricity, about 5 in 10 | Condo and apartment buildings: small splits and fan coils, roof or balcony condensers. |
| Idylwood | 1975 | condo and apartment buildings, about 4 in 10 | gas, about 5 in 10 | Condo and apartment buildings: small splits and fan coils, roof or balcony condensers. |
| City of Falls Church | 1964 | condo and apartment buildings, about 5 in 10 | gas, about 7 in 10 | Condo and apartment buildings: small splits and fan coils, roof or balcony condensers. |
| Lake Barcroft | 1958 | single-family houses, about 6 in 10 | gas, about 8 in 10 | Older houses on their third or fourth system, usually a gas furnace with a separate AC. |
| Seven Corners | 1972 | condo and apartment buildings, about 5 in 10 | gas, about 6 in 10 | Condo and apartment buildings: small splits and fan coils, roof or balcony condensers. |
| Pimmit Hills | 1961 | single-family houses, about 7 in 10 | gas, about 9 in 10 | Older houses on their third or fourth system, usually a gas furnace with a separate AC. |
By the numbers
Falls Church houses, by the numbers
From the Census Bureau’s 2020 to 2024 survey. Median year built and heat count owner-occupied homes only.
The City of Falls Church
ZIP 22046, plus a few City addresses in 22042 and 22044.
- Median home built1964 Census
- Built before 1980about 6 in 10 Census
- Built since 2000about 3 in 10 Census
- Most homes arecondo and apartment buildings, about 5 in 10 Census
- Heated withgas, about 7 in 10 Census
- Rentedabout 5 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.
- Older houses often have returns too small for today’s systems, and a starved return is one of the ways an AC freezes up.
The Fairfax County side
22041 to 22044: West Falls Church, Idylwood, Lake Barcroft, Seven Corners and Bailey’s Crossroads.
What you’d notice
What a failing AC in Falls Church usually does.
The air coming out is warm
Usually the outdoor unit has stopped running. A hum with no fan turning is almost always the run capacitor; silence while the thermostat calls is usually the contactor.
It runs all day and never cools
That’s an airflow problem far more often than a refrigerant problem: a clogged filter, a matted coil, or a blower wheel packed with dust.
Choosing who fixes it
How to pick the best AC repair company in Falls Church.
Questions worth asking anybody who comes out, us included.
Do they fix ductless mini-splits, not just central air?
A Falls Church house that heats with radiators is often cooled by mini-splits, and plenty of AC companies only work on ducted systems. Ask before anyone comes out.
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.
Two of our crew going over a work order before the day's calls.
From our Google reviews
What our customers say.
5.0 stars across 1,132 reviews. Read them on our reviews page.
Excellent price and service. Had our AC/heating system replaced. Gave us a great price and top quality install. Can’t say enough good things about them.
Where we work
AC repair in every Northern Virginia town we serve
Next door to Falls Church: Dunn Loring, Arlington, Annandale, McLean and Vienna.
Fairfax County
Arlington County
Loudoun County
Prince William County
Fauquier County
Stafford County
Questions
AC repair questions from Falls Church.
My Falls Church house has radiators. How do people here add air conditioning?
Most often with a ductless mini-split: one outdoor unit feeding a head mounted high in each room it cools, with no ductwork to fish through plaster. Putting one in is an install we price at the house. If you already have one and it’s dripping or blowing warm, that’s a repair.
Does the City of Falls Church want a permit for a new AC?
Not for a single-family house. The City’s permits page says an A/C or heat pump there can be swapped without one. For a townhouse or a condo, ask the City’s permit counter. On the Fairfax County side, a replacement is mechanical permit work either way.
In a Seven Corners or Bailey’s Crossroads condo, is the AC mine or the association’s?
Usually whatever serves only your unit is yours: the indoor air handler, and the condenser if no one else is on it. Refrigerant lines shared through the building, and the roof itself, are the association’s. Your condo documents settle it, and we’ll tell you what we find either way.
How much does AC repair cost in Falls Church?
The diagnostic visit is $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.
Ready when you are
Tell us what your AC is doing.
Call, or send the form at the top. 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
4230 Lafayette Center Dr N, Chantilly, VA 20151
44679 Endicott Dr, Suite 211, Ashburn, VA 20147
Virginia Class A contractor license #2705192276
SwiftPro Heating, Cooling & Plumbing is a licensed, BBB Accredited (A rating), independently owned heating, cooling and plumbing company in Chantilly, serving Falls Church and the rest of Northern Virginia. Virginia contractor license #2705192276. 5.0 stars across 1,132 reviews on Google, Angi, Yelp, the BBB and Facebook. SwiftPro maintains a dedicated HVAC team and a dedicated plumbing team.
From SwiftPro Heating, Cooling & Plumbing in Chantilly. Housing figures are the Census Bureau’s American Community Survey, 2020 to 2024, for each place named; permit, water and sewer facts link to each office’s own page and were checked in September and October 2026.