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 Sterling
Air duct cleaning in Sterling, VA typically costs $380-$720 for a full residential system and is scheduled within 3-5 business days, with written pricing delivered before any work begins. Our crews serve Sterling from our Washington, DC dispatch office, carrying Rotobrush and Nikro equipment configured for the two distinct duct profiles that dominate this market: 1970s-80s Sterling Park fiberglass duct board and 1990s-2000s Cascades flex-duct runs. Call (571) 520-6317 for a free written estimate.
We’ve worked Sterling long enough to know the difference matters. The same crew that handles a compact Sterling Park split-level with original fiberglass duct board is not automatically prepared for a Cascades colonial with 40-foot multi-bend flex runs feeding a second-floor zone damper. Our technicians are trained on both. Every job starts with a written price under Haven Standard Clause 1 and ends with a Documented Photo Record of every duct run, delivered to you as a standard job record.
Why CleanRun Air Duct Cleaning Herndon Is Sterling’s Preferred Air Duct Cleaning Company
Sterling homeowners have a specific reason to be skeptical of this industry: the $79 coupon that becomes a $900 invoice once the truck is in the driveway. We answer that directly. Haven Standard Clause 1 requires a written, itemized price before any panel comes off your system. No exceptions. No “call for a quote.” The price you approve is the price you pay.
Since 2013, we’ve served over 52,000 homes, every one with that same written price and a Documented Photo Record. Our 365-Day Done Right Promise is backed in writing on every job, not buried in a policy manual. If the work is not right, we make it right.
Our technicians are background-checked and uniformed under Haven Standard Clause 3: Verified Crews. You’ll get the technician’s name before arrival, not a random subcontractor. We publish our license number on every page because credentials should be verifiable, not claimed.
We also offer a Free Second Opinion on any written estimate from a competitor. Bring us their quote. We’ll put our number next to it in writing, line item by line item, so you can compare actual scope, not marketing promises.
Our Air Duct Cleaning Services in Sterling
Residential Duct Cleaning
Sterling’s housing stock demands a residential approach that accounts for age, not just square footage. In Sterling Park, we regularly open systems to find fiberglass duct board liner shedding glass particles into the supply airstream, especially after decades of Dulles-corridor humidity cycling. In Cascades and Countryside, the problem is construction debris from original build - drywall fines, tape fragments, and sawdust - still circulating 20+ years later. Our residential cleans include full supply and return duct source removal, register cleaning, and air handler access to check the blower wheel and evaporator coil for debris loading.
Commercial Duct Cleaning
Sterling’s commercial base along Route 7 and near Dulles Airport includes office parks, medical suites, and retail spaces with rooftop units and VAV boxes that accumulate debris differently than residential systems. We clean commercial ductwork with Nikro negative-pressure extraction units sized for larger static pressure requirements. Every commercial job includes the same Documented Photo Record as our residential work, plus written verification of NFPA 96 compliance where grease and particulate exhaust systems are involved.
Supply Duct Cleaning
Supply ducts push conditioned air to your registers, which means any debris in them lands on your furniture, in your bedding, and in the air you breathe. In Sterling’s older homes, we often find supply runs partially blocked by collapsed flex duct or detached takeoffs that have been dumping air into wall cavities for years. Our supply duct cleaning uses Rotobrush contact cleaning with HEPA filtration to remove adhered debris without pushing it deeper into the system. We photograph every run before and after.
Return Duct Cleaning
Return ducts pull air back to the air handler, so they’re the first place we look when a Sterling homeowner reports excessive dust or a musty smell. In Cascades homes with long return paths from second-floor returns, we’ve found years of debris accumulation at the transition boxes above first-floor ceilings - spots no homeowner can see without a camera. Our return duct cleaning includes these junction points, not just the visible trunk line.
Full System Cleaning
A full system clean is what most Sterling homes actually need, even when a competitor quotes only “supply vents.” This covers supply ducts, return ducts, registers, grilles, the air handler cabinet, blower motor, and evaporator coil access. In Sterling’s climate, with 90°F+ humid summers and hard winters, the full system cycles heavily year-round. Partial cleaning leaves debris in the return side that immediately recontaminates the supply. We quote full system scope in writing, with line-item breakdowns so you know exactly what’s included.
Video Inspection
Our video inspection service uses a self-leveling camera head fed through the ductwork to show you - not tell you - what’s inside. In Sterling, this is particularly valuable for the hidden flex-duct junctions in Cascades homes and the deteriorating fiberglass duct board in Sterling Park properties. The video becomes part of your Documented Photo Record, timestamped and delivered with your job paperwork.
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.
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We clean and service ductwork connected to all major HVAC brands, and we carry cleaning equipment from trade-recognized manufacturers: Rotobrush for contact agitation in residential flex duct, Nikro for commercial negative-pressure extraction, and Honeywell media filters and electronic air cleaners for homeowners upgrading filtration after a clean. We don’t sell equipment we can’t document. Every brand name on this page is one you can look up independently and verify.
Common Air Duct Cleaning Problems We See in Sterling Homes
- New-construction handover dust in Cascades and Countryside. Builders rarely perform post-drywall duct cleaning, so homes built in the 1990s and 2000s are still pulling original construction debris through supply and return ducts decades later. We regularly find drywall fines and tape fragments during video inspection of these systems.
- Flex duct sag and disconnection in 1990s-2000s builds. Sterling’s long multi-bend flex runs, especially the Cascades configurations with secondary-zone dampers, sag at low points and pull loose at takeoffs. Debris collects at every kink instead of reaching the air handler, and conditioned air leaks into attics and crawlspaces.
- Fiberglass duct board shedding in Sterling Park homes. Original liner from the 1970s-80s deteriorates with age and humidity cycling, releasing glass particles into the supply airstream. Homeowners often mistake this for ordinary dust until we show them the fibrous material on the camera.
- Interior duct condensation and mold in shaded crawlspaces. Sterling’s split-level and colonial-style homes frequently have partially shaded crawlspaces where summer humidity creates condensation on duct surfaces. Combined with debris, this produces the musty smell that intensifies when the AC first kicks on in June.
Pricing for Air Duct Cleaning in Sterling, VA
A typical residential Full System Cleaning in Sterling runs $380-$720 depending on system size, accessibility, and contamination level. Supply-only or return-only cleaning ranges $180-$340. Video Inspection as a standalone service is $120-$180, or included at no additional charge when bundled with a full clean. Commercial systems are quoted per project based on lineal footage and unit count.
| Service | Sterling Price Range |
|---|---|
| Full System Cleaning (residential) | $380 - $720 |
| Supply Duct Cleaning only | $180 - $340 |
| Return Duct Cleaning only | $180 - $340 |
| Video Inspection (standalone) | $120 - $180 |
| Video Inspection (with full clean) | Included |
What moves a Sterling job toward the higher end: multi-zone systems with additional dampers to access, crawlspace or attic runs requiring extra setup, heavy construction debris requiring extended contact agitation, or detached ductwork needing reconnection before cleaning can proceed. We identify these conditions during our pre-work inspection, document them with photos, and revise the written scope only with your approval. No work proceeds without a signed price. Call (571) 520-6317 for your specific written estimate.
We Also Serve Cities Near Sterling
Our crews work throughout Loudoun and Fairfax Counties, with regular routes to Sterling, Herndon, Reston, Chantilly, and Leesburg. Scheduling is coordinated from our Washington, DC office, with local technicians dispatched to each job from the nearest route point. If you’re in a neighboring community and found this page while researching, the same written pricing and Documented Photo Record apply.
Serving Sterling, VA - Our Local Coverage Area
We’re based in the Sterling 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 Sterling
It’s common, but it’s not good practice. In 2002 Cascades builds, we regularly find original construction debris still circulating, and the long flex runs to second-floor zones trap debris at every bend. After 22 years without cleaning, a full system scope with video inspection is the right starting point. Call (571) 520-6317 and we’ll put it in writing.
New homes need it because builders rarely do it, not because of age. Post-drywall dust, sawdust, and tape debris are left in ducts at handover. We’ve cleaned five-year-old Cascades homes with visible construction residue still coming out of registers. The “sales pitch” is the $79 coupon that hides the real scope. We name the price upfront. Call (571) 520-6317 for a written estimate on your specific home.
Sterling Park homes from the 1970s-80s use fiberglass duct board, which sheds liner particles as it ages and requires gentle contact cleaning to avoid further damage. Cascades homes from the 1990s-2000s use flex duct with long multi-bend runs that trap debris at elbows and damper boxes. The equipment setup, access points, and technician training differ for each. We assess which profile you have during our pre-work inspection and document the approach in your written scope.
We use a self-leveling video camera fed through the full duct path, and we open secondary-zone damper boxes above first-floor ceilings - the junction points where debris cakes up invisibly. On a 2001 Cascades colonial, we found drywall dust caked at the damper box that the homeowners had been breathing for years. The camera shows it. We photograph it. Then we remove it. Call (571) 520-6317 to schedule a video inspection.
Yes, if the smell is coming from debris and mold growth inside the ductwork, which is common in Sterling’s humid climate with partially shaded crawlspaces. Cleaning removes the organic material that feeds mold, and we inspect for condensation conditions that allow regrowth. If the smell persists after cleaning, we document it under our 365-Day Done Right Promise and return to identify the source. Call (571) 520-6317 to start with a video inspection and written scope.
Ready for a written price and a documented result? Call CleanRun Duct Repair & Cleaning at (571) 520-6317. Our Air Duct Cleaning team will answer your call live, schedule your free estimate, and deliver a scope and price in writing before any work begins. Every job includes the Documented Photo Record and the 365-Day Done Right Promise, backed under the H.A.V.E.N. Standard.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Sterling and Loudoun County homeowners since 2013.