Open 24/7 for emergencies
We work on indoor air quality through your heating and cooling system: whole-home humidifiers for dry winter air, dehumidifiers and fresh air systems for damp, stuffy houses, the right filter at the furnace, Whole Home Air Duct Cleaning at $598 (regularly $798), and the ActivePure Air Scrubber. We start with what you’re noticing and what we can see in the filter, the ducts and the humidity, then price the fix in writing. Call SwiftPro, rated 5.0 stars across 1,130 reviews, at (703) 997-9757, 24 hours a day, 7 days a week, anywhere in Northern Virginia.
Tell us what’s bothering you (dry air, dust, a damp basement, a stuffy room) and what heats and cools the house.
5.0 stars across 1,130 reviews
Two of our HVAC technicians in a Northern Virginia mechanical room.
Get your price in writing
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Licensed and insuredVirginia Class A contractor #2705192276
24/7 emergency serviceWe answer day or night, 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
Start with what you notice
Indoor air quality is a broad label. In practice, people call us about one of these, and each one has a different fix.
The humidity in a heated house usually falls to the teens or twenties. A whole-home humidifier on the furnace holds it between 30 and 50 percent.
Whole-home humidifiers: the signs, the three kinds, the install.
Usually the humidity is over 60 percent, often in a basement. A whole-home dehumidifier in the ductwork pulls it down, sometimes with a fresh air system to bring outside air in on purpose instead of through leaks.
We size both to fit the space you have, including tight ones.
Filter first: the right one, changed on time, seated so air can’t sneak around its edges. Then the ducts, if the photos show they need it.
Whole Home Air Duct Cleaning is $598, regularly $798.
That points at the ducts or the equipment, not the rooms. We photograph the inside of the ducts first, so you can see what’s in there before you pay for anything.
Often it’s short on return air: a supply vent pushing air in and no clear path back to the system. A return added there usually settles it.
The ActivePure Air Scrubber mounts in the ductwork and runs with the system’s fan.
Prices
Straight from our price book, for a home up to 2,000 square feet on one HVAC system. A bigger house or a second system adds to it, and the estimator prices yours.
Whole Home Air Duct Cleaning
$598
Every supply and every return line, register faces included. Regularly $798.
Return Air Duct Cleaning
$298
The return trunks and the grilles on them.
Whole Home Air Duct Cleaning with ActivePure Air Scrubber
$1,798
The whole home cleaning with the Air Scrubber installed in the ductwork.
UV Light Air Purifier
$499
Added to a duct cleaning, per HVAC system.
Prices checked .
Want your own number before anyone comes out? The air duct cleaning estimator prices your house in a few questions.
Humidifiers, dehumidifiers, fresh air systems and filter cabinets are priced at the visit, in writing, because the install depends on where the water, the drain and the ductwork are. Current deals are on our offers page.
An ActivePure Air Scrubber we installed on the ductwork of a Northern Virginia home.
Humidity, both directions
Humidity is the part of the air at home you feel most, and Northern Virginia gets both ends of it.
Winter. Heated air falls into the teens and twenties, and you get static, gaps in the floors and dry mornings. A whole-home humidifier on the furnace holds the house between 30 and 50 percent, the range the EPA recommends. Everything about whole-home humidifiers.
Summer. Our summers are humid, and a house that sits over 60 percent feels sticky, smells musty in the basement and gives dust mites and biological growth what they want. The AC pulls some moisture as it cools. When it can’t keep up, a whole-home dehumidifier in the ductwork does. Tight, newer houses sometimes need a fresh air system too, so outside air comes in where you choose.
Fog on the inside of the windows is the humidity talking: what it means in winter.
A whole-home humidifier on the ductwork above an HVAC unit.
Filters, then ducts
Before anything gets added to the system, the basics get checked.
Everything the system moves goes through the filter, so it’s the first thing we look at: the right size, changed on time, and seated so air can’t sneak around the edges. A thin filter in a loose slot lets dust ride straight past it.
If the house needs more, a media filter cabinet at the furnace holds a deeper filter that lasts months instead of weeks.
Then the ducts. A filter only catches what’s moving through it. Duct cleaning takes out what’s already settled inside the ducts, where no filter reaches. Whole Home Air Duct Cleaning is $598, regularly $798.
A filter pulled from the system to be checked.
In the ductwork
We’re a Trane Comfort Specialist, and the same HVAC technicians who install and service heating and cooling systems do this work, so the humidity, the filter, the ducts and the system get looked at as one.
A unit installed in the ductwork that runs whenever the system’s fan does. We install it as the third tier of our duct cleaning: Whole Home Air Duct Cleaning with ActivePure Air Scrubber, $1,798.
Where the technology came from, and what it does and doesn’t do.
A UV lamp installed in the HVAC system. Added to an air duct cleaning, it’s $499 per system.
We’ll tell you what each of these is and what it costs. We don’t make medical claims for any of them, because we can’t show you those, and the Federal Trade Commission holds sellers of air cleaning products to proof for every one.
The system we put in first
Built to take a beating. Put in by our crew.
Heat lamps, snow and rain on one outdoor unit: that’s Trane’s own film. We’re a Trane Comfort Specialist, on Trane’s own dealer locator, and when you pick a Trane, our crew puts it in.
Films: Trane’s own.
5.0 stars across 1,130 reviews
…We had Moises and Felix come install a dehumidifier & fresh air system to our home and they worked extremely hard to get the job done! … Moises walked around the entire home, inside and out, looked at where the leak/dampers/vents were and is confident we've found the solution.…
Dehumidifier and fresh air system
…He installed a return that completely resolved a static build up problem we had. He also installed a whole house humidifier that we are very pleased with.…
New return and whole house humidifier
…Alex definitely was very patient in addressing all of our questions and walked us through the various humidifier options available and what’s the optimal option based on budget , size of home and type of use .…
Humidifier install
…Called SwiftPro for help with our humidifier. … Steven was able to troubleshoot the issue in a few minutes and got it repaired quickly.…
Humidifier repair
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Where we work
We work across Fairfax, Arlington, Loudoun, Prince William, Fauquier and Stafford counties, from our offices in Chantilly and Ashburn. Near the Ashburn office, indoor air quality in Ashburn has its own page.
Keep reading
Asked on the phone
In a house, most of the work is on the heating and cooling system: holding the humidity in range with a humidifier or a dehumidifier, bringing in fresh air, filtering what the system moves, cleaning the ducts, and adding units like an air scrubber in the ductwork. That’s the work we do, across Northern Virginia.
Whole Home Air Duct Cleaning is $598, regularly $798, for a home up to 2,000 square feet with one HVAC system. Whole Home Air Duct Cleaning with ActivePure Air Scrubber is $1,798, and a UV Light Air Purifier added to a duct cleaning is $499 per system. Humidifiers, dehumidifiers, fresh air systems and filter cabinets are priced at the visit, in writing, because the install depends on your house.
Between 30 and 50 percent, the range the EPA recommends for a home. In a Northern Virginia winter, heated houses often fall to the teens or twenties. In summer, keep it under 60 percent.
Measure first with an inexpensive hygrometer. Under 30 percent on a cold morning: a humidifier. Over 60 percent in summer: a dehumidifier, and a look at the AC, which should be pulling moisture as it cools. Plenty of Northern Virginia houses need both, at different times of year.
Look before you pay. We photograph the inside of your ducts first, so you can see whether they need it before you pay for anything.
A 1-inch filter every one to three months, and monthly with pets or in the heaviest weeks of heating and cooling. A deeper 4- or 5-inch media filter lasts much longer, often 6 to 12 months. If it’s grey a month in, change it more often.
Usually the filter first: the wrong size, a gap around it, or changed too late. Then leaky return ducts pulling air from the attic or crawlspace, and dry winter air that lets static hold dust on every surface. We check them in that order.
Often it’s short on return air: the room has a supply vent but no clear path for air back to the system. A return added there usually settles it.
We work across Fairfax, Arlington, Loudoun, Prince William, Fauquier and Stafford counties, from our offices in Chantilly and Ashburn.
Something in the house bothering you?
Send the form at the top with what’s going on (dry, dusty, damp, stuffy) and what heats and cools the house. The office calls or texts you back to set a time.
SwiftPro Heating, Cooling & Plumbing
4230 Lafayette Center Dr N, Chantilly, VA 20151
44679 Endicott Dr, Suite 211, Ashburn, VA 20147
SwiftPro Plumber & Water Heaters
4200 Lafayette Center Dr, Suite N, Chantilly, VA 20151
Virginia Class A contractor license #2705192276
Current offers, and what each one covers, are on our offers page.
