AC repair in Lorton.
AC and heat pump repair in Lorton, from Laurel Hill’s original systems to Newington’s townhouse heat pumps, priced from a published book first.
The diagnostic visit is $99, and a run capacitor replaced is $240 to $370 from our published price book.
- Prices in writing, first
- Common parts on the truck
- Dedicated HVAC team
Get your AC repair priced
Original 2000s air conditioners in Laurel Hill, heat pumps on the Newington side.
About six in ten Laurel Hill homes went up after 2000, the median owner home in 2002, and in plenty of them the air conditioner out back is still the one that came with the house. A system from those years almost always runs R-22, a refrigerant that stopped being produced at the start of 2020, so every pound added now comes out of recovered stock and is priced like it. Small electrical parts are still worth fixing on one: a run capacitor is $240 to $370, a contactor $290 to $425. A leak is where the arithmetic turns. Finding and repairing one runs $1,850 to $2,700, and on a twenty-year-old R-22 system that money usually does more toward a new one.
Newington, on the north edge of Lorton, is the older end, and close to six in ten of its owners heat with electricity. That’s heat pump territory. A heat pump does the cooling from May to September and the heating from November to March, so the outdoor unit racks up far more running hours than an air conditioner its age, and a 1980s townhouse there is usually on its second or third one. When it stops cooling in August, get it fixed properly, because the same unit is your heat in January.
Lorton’s middle Census place has a quarter of its homes in condos and apartments, and over a third of them are rented. Condo cooling there tends to be a small ductless split or a fan coil unit, and the association may control the roof and the line set, so the association’s rules come before any part is ordered. In a rental, tell us who approves the work; the owner and the tenant see the same price from the same book.
In the two-story single-family houses, about four in ten of Laurel Hill’s homes, the bedroom floor is often cooled by a second system with its air handler in the attic, sitting over a pan with a float switch. When the condensate line clogs, the switch shuts the cooling off to keep water out of the ceiling, and from downstairs it looks like a dead air conditioner. Clearing that drain runs $175 to $420.
What’s cooling the houses across Lorton.
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 |
|---|---|---|---|---|
| Lorton | 2001 | single-family houses, about 4 in 10 | gas, about 7 in 10 | Newer houses: many original systems at 15 to 25 years. |
| Newington | 1981 | townhouses, about 6 in 10 | electricity, about 6 in 10 | Mostly electric heat: heat pumps that cool in summer and heat in winter. |
| Laurel Hill | 2002 | single-family houses, about 4 in 10 | gas, about 8 in 10 | Newer houses: many original systems at 15 to 25 years. |
| Mason Neck | 1973 | single-family houses, nearly all | electricity, about 6 in 10 | Mostly electric heat: heat pumps that cool in summer and heat in winter. |
Lorton houses, by the numbers
From the Census Bureau’s 2020 to 2024 survey. Median year built and heat count owner-occupied homes only.
Lorton
ZIP 22079 as a whole: every Lorton address. Most of Newington, in the table, has Springfield mail.
- Median home built1997 Census
- Built before 1980about 2 in 10 Census
- Built since 2000about 4 in 10 Census
- Most homes aresingle-family houses, about 4 in 10 Census
- Heated withgas, about 6 in 10 Census
- Rentedabout 2 in 10 Census
- Townhouse condensers sit side by side out back, so check the association’s rules before a new one goes in a different spot.
What AC repair costs in Lorton.
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
- Repair diagnostic visit$99
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 a failing AC in Lorton usually does.
Frost on the copper lines out back
Ice forming on the outdoor unit’s lines in July points at a refrigerant leak or a choked indoor coil. On a Newington heat pump or a Laurel Hill air conditioner alike, switch the system off at the thermostat, let it melt, swap the filter and call. A compressor that keeps running frozen doesn’t last.
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.
How to pick the best AC repair company in Lorton.
Questions worth asking anybody who comes out, us included.
Do they check which refrigerant it runs before talking about a recharge?
On an early 2000s Laurel Hill system the data plate usually says R-22, and that changes the price of every pound. A good tech reads the plate, tells you what the refrigerant costs, and goes looking for the leak instead of topping it up each summer.
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.
SwiftPro was able to schedule a repair visit that day when our a/c was blowing warm air. They sent out a qualified technician who communicated effectively and resolved our problem quickly. He also made a few recommendations to keep our unit in working order. Thanks Jaime for the great job.
5.0 stars across 884 Google reviews. Read them on our reviews page.
AC repair questions from Lorton.
Is the original air conditioner in my Laurel Hill house worth repairing?
For the small parts, almost always: a capacitor or a contactor can buy years for a few hundred dollars. For a refrigerant leak on the R-22 system that came with the house, look at a replacement price before you commit. We’ll give you both numbers and you decide.
My Newington heat pump runs all afternoon in a heat wave. Is that a problem?
Not by itself. On the hottest days a system sized right for the house can run for hours and still be healthy. What isn’t normal is air at the registers that’s barely cooler than the room, or a house that never reaches the setting after the sun goes down. Either one is worth a diagnostic visit, $99.
Who pays for an AC repair in a Lorton rental?
Usually the owner, and the lease is the final word. Give us the owner’s number along with yours; the repair is priced from the book before anything is replaced, and both of you can see the number.
How much does AC repair cost in Lorton?
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.
AC repair in the towns next door.
- AC repair in Fort Belvoir
- AC repair in Springfield
- AC repair in Woodbridge
- AC repair in Fairfax Station
- AC repair in Burke
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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 Lorton 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.