Open 24/7 for emergencies
The diagnostic visit is $99, and a run capacitor replaced is $240 to $370 from our published price book.
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AC and heat pump repair across Woodbridge, from Dale City and Lake Ridge to the newer Leesylvania streets, priced from our book before work begins.
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
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 Woodbridge
Which machine sits behind a Woodbridge house depends on the neighborhood. Dale City, the largest Census place with Woodbridge mail, burns gas in about two thirds of its owner homes, so the unit out back is a plain air conditioner, borrowing the blower of the furnace inside. Lake Ridge splits close to half and half. In Potomac Mills about two owners in three heat with electricity, which almost always means a heat pump: one outdoor unit that cools in August and heats in January.
So the same complaint gets a different look. In Dale City, a dragging blower motor or a matted indoor coil costs you cooling now and heat later, since one fan moves both. On a Lake Ridge or Potomac Mills heat pump, a summer call should end with a test in heat mode, because a reversing valve stuck in the cooling position won’t show itself until the first cold night.
Close to half the homes in the Woodbridge CDP are rented, and about a third in Leesylvania. Virginia’s landlord and tenant law makes the owner keep the air conditioning that came with a rental in good and safe working order, so the owner is usually the one who books the repair and approves the price. Tell us who that is when you call, and the number goes straight to the person who says yes.
The newest streets are where original equipment is getting old. In Leesylvania and County Center about eight homes in ten went up after 2000, the median owner home in 2006, so a condenser that came with the house is closing in on 20. Most units built before 2010 ran R-22, and none has been produced since 2020. If the plate on the side says R-22, a leak repair at $1,850 to $2,700 deserves a replacement price beside it.
Neighborhood by neighborhood
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 |
|---|---|---|---|---|
| Dale City | 1983 | single-family houses, about 7 in 10 | gas, about 7 in 10 | 1980s and 90s houses, most on their second or third system. |
| Lake Ridge | 1985 | townhouses, about 4 in 10 | electricity, about 5 in 10 | Mostly electric heat: heat pumps that cool in summer and heat in winter. |
| Woodbridge | 1976 | single-family houses, about 4 in 10 | gas, about 5 in 10 | Older houses on their third or fourth system, usually a gas furnace with a separate AC. |
| Leesylvania | 2006 | single-family houses, about 4 in 10 | gas, about 6 in 10 | Newer houses: many original systems at 15 to 25 years. |
| Potomac Mills | 1988 | single-family houses, about 6 in 10 | electricity, about 7 in 10 | Mostly electric heat: heat pumps that cool in summer and heat in winter. |
| County Center | 2006 | townhouses, about 4 in 10 | gas, about 6 in 10 | Townhouse streets: condensers side by side, air handler in a closet or attic. |
By the numbers
From the Census Bureau’s 2020 to 2024 survey. Median year built and heat count owner-occupied homes only.
What you’d notice
About three homes in ten in the Woodbridge CDP are in condo and apartment buildings, where the air handler often sits in a closet over somebody else’s ceiling. A blocked condensate line can stain the unit below before you see a drop. Switch the system off at the thermostat and call; clearing the drain is $175 to $420.
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.
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
Questions worth asking anybody who comes out, us included.
Prince William County wants no permit when the same type of unit goes back on the old pad. Inside the Lake Ridge association a new spot is different: its guidelines send any change to the outside of a lot to the Architectural Committee first. Better to hear that with the quote than in a violation letter.
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.
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.
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
5.0 stars across 1,132 reviews. Read them on our reviews page.
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.
Where we work
Next door to Woodbridge: Dumfries, Lorton, Triangle, Fairfax Station and Quantico.
Questions
If your house is in the Lake Ridge Parks and Recreation Association, about 7,200 homes, only with its say-so. It allows window air conditioners only for a medical need, and an owner who puts one in during an emergency has to notify its Covenants Department, which weighs each case on its own. The quicker route is usually the repair: a run capacitor is $240 to $370, a contactor $290 to $425.
Watch it on a cold morning. A heat pump runs all winter, now and then going quiet and letting off steam while it defrosts. A plain air conditioner sits still from October to spring.
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.
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
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 Woodbridge 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.