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Catharpin AC tune-up in ZIP 20143. We clean the fan, coil and drain line for $99.
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Rather talk now? (703) 997-9757
5.0 stars across 1,132 reviews
One of our HVAC technicians with an air conditioner on a Northern Virginia street, a SwiftPro box truck and pickup parked behind him.
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
One price per system, $99. We go through it before a Northern Virginia July finds the weak part for you. Anything it turns up is priced in writing before any work, and if it can wait, we say so.
AC tune-up, one system
$99
Furnace tune-up, one system
$99
Heat pump, boiler or ductless mini split tune-up, one system
$99
Comfort+ membership, a cooling maintenance visit every spring included
$199 a year
A house with two systems books two tune-ups, one for each, and a heat pump or a ductless mini split is the same $99 a system. The heating side, a furnace or a boiler, gets its own tune-up in the fall at the same price.
With Comfort+ membership at $199 a year, the cooling maintenance visit comes every spring, along with a heating maintenance visit, a water heater flush with a sewer camera inspection and a dryer vent cleaning.
What’s different in Catharpin
ZIP 20143 has 334 owner homes, with a median build year of 1986. About 42% were built before 1980. Many of these systems are 35 to 45 years old. The fan, coil and drain line have run through many summers. Cleaning them now finds wear before a hot July does. The written report tells you if the unit is ready for the season or if parts are nearing the end of their life.
Heating here is split. Census data shows 46% of owner homes use electricity, 34% use propane, and 8% use oil. If you have a heat pump, the outdoor unit works year-round. The spring visit covers the cooling half of that job. If you have a gas furnace with a separate AC, the unit sits idle for half the year. Both setups benefit from a pre-summer check to ensure the fan spins freely and the coil is clean.
Catharpin sits in a low Triassic basin. Little Bull Run floods often enough to have its own NWS gauge. In July 2025, it hit its highest crest. If your AC unit is in a low spot or basement, check the pan and shutoff valve during the visit. We also verify the pressure reducing valve is working, since Prince William Water says pressure rises with height difference between your house and the water tank.
Prince William County lists any work that alters a home’s heating and air conditioning as permit work. However, swapping an electric furnace, heat pump or air conditioning condensing unit for the same type of unit in the same spot is an ordinary repair that needs no permit. We handle the tune-up and the check. If you need a replacement, we can point you to the right permit path so you are not stuck with paperwork after the fact.
When to book it
With a median build year of 1986 and a mix of electric and propane heat, Catharpin’s AC units vary widely. A tune-up clarifies which parts are still strong and which are due for attention before the heat peaks.
A weak capacitor is a small fix on a mild day in April. Found by a July heat wave, it’s a house with no cooling.
Or the sticker on the unit is from the last owners. That’s most houses, and it’s reason enough.
Choosing who tunes it up
Questions to ask anybody who books you, us included.
The spring visit targets cooling components: the fan, coil and drain line. If you run a heat pump, that covers the cooling half. The heating side needs its own check in the fall. We provide a written report on what we found so you know where your system stands.
Ask what gets cleaned and what gets checked, and whether a second system costs extra. A number with no list behind it is hard to hold anybody to.
Ask for the findings in writing, with a price on anything that needs fixing and an honest word on what can wait. A tune-up you never see written down is one you take on faith.
An air conditioner doesn’t use up refrigerant. Low means it’s leaking somewhere, and a company that tops it up every spring is selling you the same refrigerant twice.
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.
Elvis Diaz did an excellent job cleaning our condo’s HVAC system. He was very knowledgeable about maintaining the unit and the price was very reasonable.
Where we work
Next door to Catharpin: Gainesville, Haymarket, Centreville, Chantilly and Bristow.
Questions
Yes. Many homes here were built before 1980. A tune-up finds wear before a hot July does. The written report tells you if the unit is ready for the season or if parts are nearing the end of their life. This helps you plan calmly if a repair is needed.
We can advise you on the permit path. Prince William County requires a permit for work that alters heating and air conditioning, but swapping an electric unit for the same type in the same spot is an ordinary repair that needs no permit. We help you know which applies before you start.
$99 per system, the same for a central air conditioner, a heat pump or a ductless mini split. A house with two systems books two. If the tune-up turns up a repair, you get its price in writing before any work, and you decide.
Once a year, in the spring, before the first heat wave. The heating side gets its own visit in the fall. The filter needs attention more often, every one to three months, and it’s the cheapest thing on the list.
Ready when you are
Call, or send the form at the top. Anything the tune-up turns up gets priced in writing before anybody touches it, and if it can wait, you’ll hear that too.
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 Catharpin 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.