Whole-system duct and dryer vent check with before-and-after photos - you see exactly what came out of your vents
That "$99 whole-house special" is a bait ad - the real number appears once they are in your hallway, or the "clean" is a shop-vac at the register. We photograph the inside of your ducts before and after instead.
Before
After
Before
After
Before
AfterAir Duct Cleaning in Chantilly, VA
HVAC cleaning in Chantilly typically runs $350-$650 for a complete system, with air quality and sanitizing services adding $200-$500 depending on scope. We’re CleanRun Duct Repair & Cleaning, and our crews work the Chantilly market from our Washington, DC office, dispatching technicians who understand the specific problems these homes present. Call (571) 487-7204 for a written estimate before any work starts.
Why Chantilly Homes Are Different
Chantilly’s residential fabric is almost entirely a product of the Dulles Tech Corridor boom. Subdivisions built from roughly 1982 through 2005 - Chantilly Highlands, Poplar Tree Estates, the Westfields-adjacent communities - used fiberglass duct board trunks with flex-duct branch runs in attic or crawlspace chases. That duct board is now 20-40 years old and hitting end-of-useful-life simultaneously.
Compounding this, the Route 28 corridor and Dulles Airport surroundings remain among the most actively developed commercial zones in Northern Virginia. Construction particulate from ongoing development continuously enters the outdoor air that these aging systems pull into homes. Technicians working subdivisions near the Rt. 28/Dulles Toll Road corridor routinely find return-air filters and plenums clogged with drywall and concrete dust from nearby construction, not just household debris.
Northern Virginia’s humid subtropical summers push indoor relative humidity into ranges where condensation forms on uninsulated or poorly-sealed flex duct runs. In Chantilly attic installations, temperature swings between air-conditioned interiors and 130°F attic air create moisture cycling that promotes mold inside duct sections. The long HVAC season - cooling from May through October, heating from November through March - means systems run almost year-round, accelerating particulate buildup.
Our Main Chantilly Services
Most Chantilly homeowners who call us need one of these three services.
Air Duct Cleaning in Chantilly
We clean the full duct network - supply and return runs, trunk lines, and plenums - using negative-pressure extraction (a vacuum system that pulls debris out while agitation tools loosen it). In Chantilly, we often find that duct board liner has begun to delaminate, which changes what cleaning can safely accomplish. Every job ends with a Documented Photo Record of every run, delivered as part of the standard job record. Air Duct Cleaning in Chantilly
Dryer Vent Cleaning in Chantilly
Dryer vent blockages are a leading cause of house fires. We clean the full vent run from the appliance to exterior termination, measuring airflow before and after. Chantilly’s mature landscaping means exterior vents often sit behind shrubbery that traps lint against the hood. We document the restriction and the corrected airflow in writing. Dryer Vent Cleaning in Chantilly
Duct Repair & Sealing in Chantilly
When duct board delaminates or flex duct separates at collars, cleaning alone isn’t enough. We repair or replace damaged sections and seal leaks with mastic or metal-backed tape, then pressure-test the system. In Chantilly’s older subdivisions, we regularly find disconnected runs in attics that have been heating and cooling the roof deck for years. Duct Repair & Sealing in Chantilly
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Before
AfterHVAC Cleaning in Chantilly
Chantilly’s 20-40 year old HVAC systems run almost continuously through long cooling and heating seasons, coating evaporator coils and blower assemblies with debris that restricts airflow and drives up energy use. Our HVAC Cleaning service targets the components that standard duct cleaning doesn’t reach, using Rotobrush and Nikro equipment sized for residential systems.
Evaporator Coil Cleaning
Signs you need it
Ice formation on the coil, weak airflow from registers, or cooling that can’t keep up during July afternoons in Chantilly.
What it costs in Chantilly
Evaporator coil cleaning typically runs $180-$340.
How we do it
We access the coil through the plenum, apply foaming cleaner, rinse with low-pressure water, and photograph the before and after condition.
Blower Cleaning
Signs you need it
Unusual vibration at startup, dust puffing from registers when the fan engages, or a motor that runs hot to the touch.
What it costs in Chantilly
Blower assembly cleaning typically runs $150-$280.
How we do it
We remove the blower housing, clean the wheel and motor, check amp draw, and reassemble with the photo record included.
What HVAC Cleaning Costs in Chantilly
| Item | Typical range in Chantilly |
|---|---|
| Evaporator coil cleaning | $180-$340 |
| Blower assembly cleaning | $150-$280 |
| Full HVAC cleaning (coil + blower + plenum) | $350-$650 |
How do I know my HVAC needs cleaning, not just my ducts?
If your ducts are clean but rooms still heat or cool unevenly, or your energy bills spike without rate changes, the problem is likely in the coil or blower. We inspect these components during every duct cleaning and report what we find.
Will HVAC cleaning fix my high summer electric bills?
It helps if the coil or blower is restricted, but it won’t compensate for an undersized or aging system. We photograph the restriction so you can see the improvement potential before deciding.
Air Quality & Sanitizing in Chantilly
Chantilly’s humidity-driven condensation in attic ductwork creates conditions where microbial growth outpaces what cleaning alone can address. Our Air Quality & Sanitizing service treats active contamination and installs prevention measures, with all work documented under the 365-Day Done Right Promise.
Mold Treatment
Signs you need it
Musty odor when the system runs, visible growth on duct board liner, or occupants with worsening allergy symptoms in humid months.
What it costs in Chantilly
Mold treatment typically runs $400-$800 depending on affected duct length.
How we do it
We apply EPA-registered antimicrobial through the duct system, treat the source of moisture intrusion, and photograph all affected areas before and after.
UV Light Installation
Signs you need it
Recurring microbial growth after treatment, or a system in a dark, humid attic where moisture cycling persists.
What it costs in Chantilly
UV light installation typically runs $300-$600 including the lamp and electrical connection.
How we do it
We mount a Honeywell or Aprilaire UV-C lamp at the coil or supply plenum, wire to the blower circuit, and show you the installation in the photo record.
What Air Quality & Sanitizing Costs in Chantilly
| Item | Typical range in Chantilly |
|---|---|
| Mold treatment (per system) | $400-$800 |
| UV light installation | $300-$600 |
| Full air quality package (treatment + UV) | $650-$1,200 |
Is mold in my ducts dangerous or just unpleasant?
Most residential duct mold is allergenic, not toxic, but it aggravates asthma and allergies and signals moisture problems that will worsen. We identify the moisture source so treatment lasts.
How long does UV light take to work?
Surface mold at the coil drops within 48-72 hours of installation, but UV prevents regrowth rather than treating existing contamination deep in duct runs. We pair it with cleaning when needed.
Brands We Service in Chantilly
We clean and service systems using Honeywell, Aprilaire, and other major brands, with parts stocked for common repairs. Most replacement components are available within one business day, and our technicians carry Rotobrush and Nikro equipment on every truck. See our brands for the full list.
Pricing for Air Duct Cleaning in Chantilly, VA
| Service | Typical range in Chantilly |
|---|---|
| Air duct cleaning (whole system) | $300-$600 |
| Dryer vent cleaning | $120-$200 |
| Evaporator coil cleaning | $180-$340 |
| Blower assembly cleaning | $150-$280 |
| Full HVAC cleaning | $350-$650 |
| Duct repair & sealing (per run) | $200-$450 |
| Mold treatment | $400-$800 |
| UV light installation | $300-$600 |
Prices in Chantilly run toward the higher end when duct board is delaminating and requires gentle handling, or when construction debris has packed deeply into return plenums. Every job starts with a written price under Haven Standard Clause 1 - no exceptions, no surprises.
Neighborhoods We Serve in Chantilly
We work across Chantilly’s full residential footprint, from the older sections near Route 50 to the communities built through the 1990s and 2000s west of Route 28. Crews are dispatched from our Washington, DC office and typically arrive within scheduled windows agreed when you book.
- Chantilly Highlands
- Poplar Tree Estates
- Westfields-adjacent communities
- Franklin Farm (eastern Chantilly)
- Greenbriar
Service Area - Cities Near Chantilly
Our crews work throughout Northern Virginia, with regular routes to Centreville, VA, Reston, VA, Herndon, VA, and Sterling, VA. Scheduling is coordinated from our metro office with routes optimized to minimize drive time and keep appointments on time.
Serving Chantilly, VA - Our Local Coverage Area
We’re based in the Chantilly area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Air Duct Cleaning in Chantilly
No permit is required for cleaning. Duct repair or replacement that modifies the HVAC system may need a Fairfax County permit if it involves electrical or gas line work; we handle permit research and include any required fees in the written price.
Most Chantilly HOAs require no advance notice for service vehicles, but a few restrict work hours or parking. We coordinate with your HOA office if needed and schedule within permitted windows.
We typically book within 3-5 business days, with limited flexibility for urgent situations like post-construction cleanup or real estate transactions. Call (571) 487-7204 for current availability.
What happens when you call
- 1A real person answersNo phone trees - talk to a local air duct cleaning pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Chantilly Customers Say
"The dryer vent was almost completely blocked with lint. They showed me the photograph and I understood immediately why the dryer had been running twice."
- Lucia M."Thorough job on the ducts and the dryer vent. Left the house clean and the paperwork was clear."
- Rafael I."The before and after photographs of each run are the reason I used them. You cannot argue with what came out of the return."
- Marguerite O.