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.
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AfterFast, Reliable Air Duct Cleaning Across Chantilly
Air duct cleaning in Chantilly typically runs $380-$720 for a full residential system, with most jobs completed in a single visit. Our crews coordinate dispatch from our Washington, DC office and carry equipment for both cleaning and the duct repairs we routinely find in Chantilly’s 1985-2005-era homes. Call (240) 318-7712 for a written estimate before any work starts.
We’ve worked in Chantilly long enough to know the pattern. Greenbriar, South Riding, the townhomes off Route 50 - these neighborhoods share the same housing stock, the same attic geometry, and the same problems that develop after three decades of Northern Virginia humidity and Dulles corridor construction dust. Our technicians arrive with Rotobrush and Nikro negative-pressure extractors, but also with the re-bracing hardware and flex-duct replacement sections needed for the repairs that cleaning alone won’t solve.
Why CleanRun Air Duct Cleaning Alexandria Is Chantilly’s Preferred Air Duct Cleaning Company
CleanRun has served the Chantilly market since 2013 with a simple difference: every job starts with a written price and ends with a documented photo record of every duct run. No exceptions. Haven Standard Clause 1.
Our Chantilly customers tend to find us after a bad experience with a coupon service - the $79 special that became a $600 invoice once the truck was in the driveway. We don’t operate that way. The price we write before work starts is the price on the final invoice. Our 365-Day Done Right Promise is backed in writing on every job, not mentioned in passing and forgotten.
Response time to Chantilly is typically next-day or within 48 hours for standard scheduling. We don’t manufacture urgency. Duct cleaning is a scheduled maintenance job, and we’d rather do it right than do it rushed.
Haven Standard Clause 3: Verified Crews. Every technician is background-checked, uniformed, and identified by name before arrival. The license number is published on this page, not buried in a footer where it can’t be verified.
Our Air Duct Cleaning Services in Chantilly
Residential Duct Cleaning
Chantilly’s single-family homes and townhomes - particularly in planned communities like Greenbriar - were built with flexible ductwork routed through unconditioned attics. After 20-35 years, that flex duct sags, separates at joints, and accumulates debris pools at low points. Our residential cleaning includes negative-pressure extraction through every supply and return run, but we also video-inspect each line to find the disconnected joints and crushed sections that coupon cleaners miss. A typical Chantilly residential full-system cleaning runs $380-$620.
Commercial Duct Cleaning
Chantilly’s position along the Route 28 Dulles Technology Corridor means office parks, data centers, and retail spaces with constant HVAC load. Commercial systems here face the same fine construction dust infiltration as homes, but at higher volume. We clean commercial ductwork with Abatement Technologies HEPA-filtered negative air machines, sized to the system CFM. Commercial pricing in Chantilly starts around $850 for small office suites and scales with system complexity. Written scope, written price, before any work begins.
Supply Duct Cleaning
Supply ducts carry conditioned air to your registers. In Chantilly’s Greenbriar-era homes, these are the runs most likely to belly down across unbraced attic spans, trapping debris and creating standing moisture pools where mold colonizes. Our supply duct cleaning includes source removal of contaminated flex sections, re-bracing of sagging spans, and sealing of all joints with mastic. A supply-only cleaning in Chantilly typically runs $280-$450, though we often recommend pairing it with return cleaning for full system balance.
Return Duct Cleaning
Return ducts pull air back to the HVAC unit. In Chantilly homes, these larger trunk lines often show the heaviest accumulation because they operate at lower pressure, allowing more dust to settle. Our return cleaning includes full trunk and branch line extraction, plus inspection of the filter rack and plenum (the distribution box where return air enters the unit) for gaps that bypass the filter entirely.
Full System Cleaning
This is what most Chantilly homes actually need. Full system cleaning covers every supply run, every return run, the plenum, and the accessible trunk lines, with video inspection before and after. We include the Documented Photo Record as standard - inside every run, delivered to you as part of the job record. Full system cleaning in Chantilly runs $480-$720 depending on home size and duct configuration.
Video Inspection
We push a camera through every duct run before quoting repair work and after cleaning to verify results. In Chantilly, this step is non-negotiable for us. The camera shows what a vacuum hose alone cannot: disconnected joints three feet inside an attic run, crushed flex behind a drywall bulkhead, or degraded fiberglass liner that looks like dirt but is actually structural failure. Video inspection is included in our full system and supply cleaning packages, or available standalone for $180-$240.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
BeforeAfterTrusted Brands We Service in Chantilly
CleanRun crews carry professional-grade equipment from trade-recognized manufacturers: Rotobrush rotary brush systems for mechanical agitation, Nikro and Abatement Technologies HEPA-filtered negative air machines for containment, and Honeywell and Aprilaire media filters and UV air purifiers for installation after cleaning. We stock replacement components for Chantilly customers rather than ordering and returning, which means when we find a failed Guardsman inline filter or cracked Aprilaire media cabinet during a cleaning, we can replace it same visit. No second trip, no second dispatch fee.
Common Air Duct Cleaning Problems We See in Chantilly Homes
- Disconnected flex joints in attic runs. Northern Virginia’s sharp seasonal swing from humid summers to cold, dry winters repeatedly expands and contracts flex duct. After 30 years, the original zip-tie or tape joints pull apart. Our camera finds these separations three feet inside a run where no vacuum hose can reach the disconnected section.
- Sagging horizontal spans with debris pools. Chantilly’s Greenbriar-era subdivisions were built with long, unbraced horizontal flex duct spans across attic floors - a builder shortcut. After decades, these runs belly down into U-shapes that trap standing debris and moisture. Cleaning without re-bracing just leaves the same geometry to re-accumulate.
- Mold and mildew on degraded fiberglass liner. Summer relative humidity above 80% meets cold supply air in attic flex runs, creating condensation conditions. The original fiberglass liner delaminates and becomes a substrate for microbial growth. Surface cleaning won’t fix degraded liner; source removal and sealing will.
- Dulles/Route 28 corridor construction dust infiltration. Relentless commercial and infrastructure construction adjacent to Chantilly generates persistent fine particulate. This dust infiltrates through gaps in aging duct systems, accelerating accumulation and often carrying silica and other abrasive material that standard household filters weren’t designed to capture.
Pricing for Air Duct Cleaning in Chantilly, VA
Here’s what air duct cleaning actually costs in Chantilly’s market, based on the homes we service:
| Service | Typical Range |
|---|---|
| Video Inspection (standalone) | $180-$240 |
| Supply Duct Cleaning | $280-$450 |
| Return Duct Cleaning | $220-$380 |
| Full Residential System Cleaning | $380-$720 |
| Commercial Duct Cleaning (small office) | $850-$1,400 |
| Duct Repair & Sealing (per run, when found) | $150-$340 |
What moves the price: home size, number of duct runs, accessibility of attic or crawl space, and whether we find disconnected or degraded ductwork that needs repair before cleaning is effective. We deliver a written price before any work starts, every time. No per-vent pricing, no add-ons after arrival. Free Second Opinion on any competitor’s written estimate - bring it, we’ll put our number next to it.
Call (240) 318-7712 for a written estimate. Estimates are free.
We Also Serve Cities Near Chantilly
CleanRun crews work throughout Northern Virginia, including Air Duct Cleaning in Chantilly as well as Centreville, Fairfax, Reston, and Herndon. Dispatch and scheduling are coordinated from our Washington, DC office. Each city gets the same written-price standard and documented photo record, with local knowledge of housing stock and climate conditions applied to every job.
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 - Air Duct Cleaning in Chantilly
Chantilly’s dominant housing stock was built during the 1985-2005 Northern Virginia growth boom with flexible ductwork in unconditioned attics, while older Fairfax homes often used rigid metal duct. Flex duct degrades faster - the fiberglass liner delaminates, the plastic jacket becomes brittle, and long unbraced spans sag. After 30 years, Chantilly’s flex systems are hitting acute failure while Fairfax’s older rigid duct, properly maintained, often just needs cleaning. Our Air Duct Cleaning team finds this pattern on nearly every Chantilly job. Call (240) 318-7712 for a video inspection that shows exactly what your system contains.
Fine construction dust from decades of commercial and infrastructure development along the Dulles Technology Corridor infiltrates through gaps in aging duct systems, accelerates filter loading, and deposits abrasive particulate inside runs. In Chantilly, we regularly find this dust packed into flex duct low points where it combines with humidity to form compacted debris that restricts airflow and harbors microbial growth. The dust itself doesn’t damage ductwork, but its volume forces HVAC systems to run longer cycles, and its infiltration path indicates gaps that need sealing. A full system cleaning with documented photo record shows both the accumulation and the infiltration points.
Yes. Northern Virginia’s humid subtropical climate pushes summer relative humidity above 80%, and when cold supply air moves through flex runs in hot attics, condensation forms on the duct exterior and migrates to interior surfaces. The original fiberglass liner in Chantilly’s 1990s-era homes provides a porous substrate. We find mold staining at every low point of sagging flex runs - not surface dust, but active colonization on degraded liner. Source removal of contaminated flex sections and proper sealing prevents recurrence; surface cleaning alone does not.
We fix what we find. Haven Standard Clause 1 requires a written price for the full scope before work starts, and that scope includes reconnection, re-bracing, or replacement of failed duct sections identified during video inspection. Our crew carries flex-duct replacement sections, support straps, and mastic sealant on every Chantilly job. The field vignette: our tech was called to a Greenbriar townhome where the homeowner reported uneven airflow and a musty smell from the upstairs registers. During video inspection we found two disconnected flex runs in the attic - joints pulled apart from years of seasonal expansion - and the supply duct had bellied down across an unbraced span, trapping a visible pool of debris and mold staining at the low point. We reconnected and re-braced both runs, source-removed the contaminated flex section, sealed the joints, and after a full supply and return cleaning the static pressure dropped and airflow at the far registers returned to normal. That job included cleaning, repair, and documentation - not vacuum noise alone.
Start with what you’re experiencing. Uneven temperatures room-to-room, musty smells from supply registers, or visible debris at vents suggest supply-side problems. Excess dust throughout the home, frequent filter clogging, or the HVAC unit running longer than it used to point to return-side or full-system issues. In Chantilly’s Greenbriar-era homes, we typically recommend full system cleaning because the same aging flex infrastructure affects both sides, and cleaning only supply runs while returns remain contaminated reintroduces debris within weeks. Video inspection removes the guesswork - the camera shows exactly where accumulation and damage are concentrated. Call (240) 318-7712 to schedule; we’ll show you before quoting.
Ready to see what’s actually inside your ducts? Call CleanRun at (240) 318-7712. We’ll deliver a written price before any work starts, document every run with before-and-after photos, and back the work with our 365-Day Done Right Promise. Haven Standard Clause 1. No exceptions.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Chantilly since 2013.