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 $380-$620 for a complete system, and every job starts with a written price before any panel comes off. Chantilly’s 1985-2005 housing stock - concentrated in communities like Greenbriar - means most homes here rely on aging flex duct runs through hot, humid attics, a combination that produces debris buildup and microbial growth faster than you’ll see in closer-in Northern Virginia neighborhoods. We dispatch crews from our Washington, DC office and serve Chantilly homes with documented photo records on every visit. Call (240) 318-7712 for a free estimate.
Why Chantilly Homes Are Different
Chantilly sits hard against Washington Dulles International Airport and the Route 28 Dulles Technology Corridor, where decades of commercial and data-center construction have generated a steady load of fine particulate that finds its way into residential duct systems. The housing tells the rest of the story: production-built single-family homes and townhomes from the late 1980s through the early 2000s, overwhelmingly flex duct routed through unconditioned attics.
That specific combination - original flex duct now 20-35 years old, crossed with Northern Virginia’s humid subtropical summers pushing attic temperatures past 130°F - creates conditions we don’t see in Vienna or Fairfax. The cold supply air hitting warm, moisture-laden infiltration produces condensation inside duct runs. Technicians in Greenbriar-era subdivisions regularly find long, unbraced horizontal spans bellied down with standing debris pools and visible microbial staining at every low point. The seasonal swing from humid summers to cold, dry winters repeatedly stresses joints, accelerating separations that trap debris and biological growth in ways rigid-duct homes simply don’t experience.
Our Main Chantilly Services
Most Chantilly homeowners who call us start with one of these three services.
Air Duct Cleaning in Chantilly
Full negative-pressure extraction of supply and return duct runs, with before-and-after photography inside every line. In Chantilly’s flex-duct homes, we pay particular attention to sagging low points where debris pools form. Every job gets a written price before work starts and a Documented Photo Record delivered afterward. Air Duct Cleaning in Chantilly
Dryer Vent Cleaning in Chantilly
Lint removal from dryer exhaust runs to the exterior termination, with airflow testing before and after. Chantilly’s older townhome configurations often involve long, multi-elbow vent paths that accumulate lint faster than straight-shot designs. We photograph the full run and provide a written completion report. Dryer Vent Cleaning in Chantilly
Duct Repair & Sealing in Chantilly
Replacement of degraded flex duct, reconnection of separated joints, and sealing of plenum and register boots. The 20-35 year flex systems common in Chantilly are now hitting the window where liner degradation and joint failure become acute; we scope the full system before quoting repair scope. 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.
BeforeAfterHVAC Cleaning in Chantilly
Chantilly’s 1985-2005 housing stock and humid subtropical climate create a specific maintenance problem: original evaporator coils and blower assemblies operate in near-constant condensation conditions during summer months, while attic-mounted air handlers collect debris from degraded flex duct returns. HVAC cleaning here isn’t a luxury service; it’s corrective maintenance for systems that have been running dirty since before most current owners bought the home. We document every component with before-and-after photography, and our HVAC Cleaning service hub details the full equipment roster.
Evaporator Coil Cleaning
Signs you need it
Ice formation on refrigerant lines, reduced airflow from registers, or a musty odor when the AC cycles on.
What it costs in Chantilly
Evaporator coil cleaning typically runs $180-$340.
How we do it
We remove the coil assembly where accessible, apply foaming cleaner, rinse with low-pressure water, and photograph the fin condition before reassembly.
Blower Cleaning
Signs you need it
Vibration or noise from the air handler, uneven heating or cooling across rooms, or dust puffing from registers at startup.
What it costs in Chantilly
Blower motor and wheel cleaning typically runs $160-$280.
How we do it
We extract the blower assembly, clean the wheel blades and housing with compressed air and solvent, balance the wheel, and photograph the completed assembly before reinstalling.
What HVAC Cleaning Costs in Chantilly
| Item | Typical range in Chantilly |
|---|---|
| Evaporator coil cleaning | $180-$340 |
| Blower motor and wheel cleaning | $160-$280 |
| Full HVAC system cleaning (coil, blower, air handler) | $380-$620 |
How do I know my HVAC system needs cleaning versus just my ducts?
If you have reduced airflow, musty odors, or temperature inconsistency after duct cleaning, the problem is likely in the coil, blower, or air handler. We scope these components with a borescope before quoting.
Can HVAC cleaning fix the humidity problems in my Chantilly home?
Cleaning restores designed airflow, which helps the system dehumidify properly, but it won’t fix oversized equipment or duct leakage. We inspect for both during the pre-work assessment.
Air Quality & Sanitizing in Chantilly
Chantilly’s flex-duct homes, built during the 1985-2005 boom, now harbor 20-35 years of accumulated organic material inside duct runs that cross hot, humid attics. When cold supply air meets warm infiltration, condensation forms on interior duct surfaces - the exact conditions that promote mold and bacterial colonization. Air quality and sanitizing services target this biological load with applied treatments, not surface wiping. Our Air Quality & Sanitizing service hub covers the full protocol.
Mold Treatment
Signs you need it
Visible dark staining at duct low points or registers, a persistent earthy odor when the system runs, or aggravated allergy symptoms indoors.
What it costs in Chantilly
Whole-system mold treatment typically runs $450-$780.
How we do it
We apply an EPA-registered fungistatic treatment to all interior duct surfaces using mechanical fogging equipment, with dwell time verified before system restart.
UV Light Installation
Signs you need it
Recurring microbial growth after cleaning, or a home with occupants sensitive to airborne biological contaminants.
What it costs in Chantilly
UV-C light installation at the coil or air handler typically runs $320-$550.
How we do it
We mount a Honeywell or Aprilaire UV-C lamp at the coil face or air handler interior, wire to the blower circuit for automatic operation, and photograph the installation.
What Air Quality & Sanitizing Costs in Chantilly
| Item | Typical range in Chantilly |
|---|---|
| Whole-system mold treatment | $450-$780 |
| UV-C light installation (coil or air handler) | $320-$550 |
| Combined mold treatment + UV installation | $680-$1,100 |
Is the mold treatment safe for my family and pets?
We use EPA-registered products applied with mechanical fogging equipment, with verified dwell time and full ventilation before system restart. The treatment is performed with the home unoccupied.
Will UV lights actually prevent mold in my Chantilly home?
UV-C at the coil surface prevents biological growth on the wet coil, but it does not sterilize air passing through. We install it as part of a protocol that includes source removal and, where indicated, duct repair to stop condensation conditions.
Brands We Service in Chantilly
We stock parts and service equipment from Honeywell, Aprilaire, and Abatement Technologies, with Guardsman treatments available for sanitizing applications. Most common components are on the van, so Chantilly jobs rarely wait for parts. our brands
Pricing for Air Duct Cleaning in Chantilly, VA
| Service | Typical range in Chantilly |
|---|---|
| Air duct cleaning (whole system) | $320-$580 |
| Dryer vent cleaning | $120-$220 |
| Evaporator coil cleaning | $180-$340 |
| Blower motor and wheel cleaning | $160-$280 |
| Full HVAC system cleaning | $380-$620 |
| Whole-system mold treatment | $450-$780 |
| UV-C light installation | $320-$550 |
| Duct repair and sealing (per system) | $280-$650 |
Price in Chantilly is pushed up by long flex-duct runs with multiple access points, attic work in summer conditions, and systems with significant debris accumulation requiring extended extraction time. Every quote is written and agreed before work starts, per Haven Standard Clause 1. No per-vent pricing, no post-arrival add-ons.
Neighborhoods We Serve in Chantilly
We work across Chantilly’s full residential footprint, with particular familiarity in the large planned communities built during the 1985-2005 window. Crews are dispatched from our Washington, DC office and typically arrive within standard Northern Virginia response windows.
- Greenbriar
- Franklin Farm
- Brookfield
- Chantilly Highlands
- Poplar Tree
Service Area - Cities Near Chantilly
Our crews serve the full Dulles corridor and inner Northern Virginia suburbs. We regularly schedule work in Centreville, VA, Fairfax, VA, Reston, VA, and Herndon, VA, often routing multiple jobs in a single day to minimize travel time and keep scheduling efficient.
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
Standard residential duct cleaning and maintenance do not require permits in Fairfax County. Duct repair involving structural modification or new installation may require a building permit; we verify requirements before quoting and include permit costs in the written price if applicable.
The Route 28 corridor generates fine construction dust that infiltrates homes through intake vents, window gaps, and attic penetrations. We see elevated particulate loads in Chantilly systems compared to more established areas, particularly during active construction seasons.
We coordinate with Chantilly HOAs regularly and provide certificates of insurance, vehicle registration, and technician identification in advance where required. We do not ask homeowners to manage access logistics on our behalf.
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
"My allergies genuinely improved. They also told me the ducts did not need sealing, which I had been quoted for elsewhere."
- Petra K."Flat price agreed up front, no per-vent add-ons at the end. That was the whole reason I did not call the coupon company."
- Suzanne B."They found a disconnected duct in the crawl space that had been dumping conditioned air under the house for years. Photographed it, quoted the repair, fixed it."
- Devon A.