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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After
Before
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Before
AfterFast, Reliable Air Duct Cleaning Across Sterling
Air duct cleaning in Sterling, VA typically runs $380-$680 for a complete residential system, with most jobs scheduled within 3-5 business days and completed in a single visit. Our crews are dispatched from our Washington, DC coordination office and carry Rotobrush and Abatement Technologies equipment specifically configured for the aging ductwork and new-construction debris we encounter across Sterling’s mixed housing stock. If you’re in Sterling Park, Sugarland Run, or one of the newer Loudoun subdivisions off Route 7, we’ll quote a written price before any panel comes off - call (240) 255-4519.
Why CleanRun Air Duct Cleaning Rockville Is Sterling’s Preferred Air Duct Cleaning Company
We’ve been documenting the inside of Sterling ductwork since 2013, and the photo records tell a consistent story. Sterling Park’s 1970s-era split-levels and colonials harbor failure modes we rarely see in Reston or Fairfax - collapsing fiberglass liner inside rectangular supply trunks, disconnected flex duct in vented crawl spaces, and moisture-driven mildew colonies that the homeowner only notices as a persistent “basement smell” or unexplained dust.
Our Air Duct Cleaning team has served more than 52,000 homes, every one with a written price agreed before work started and a documented photo record delivered at completion. In Sterling specifically, we regularly encounter homeowners who received low teaser quotes elsewhere, watched a shop-vac run for 45 minutes, and never saw inside their own ducts. Our process is different: Haven Standard Clause 1 requires the written price; Haven Standard Clause 4 requires the photo record.
Technicians are background-checked, uniformed, and identified by name before arrival - Haven Standard Clause 3: Verified Crews. The 365-Day Done Right Promise applies to every Sterling job in writing, not as a verbal assurance.
Our Air Duct Cleaning Services in Sterling
Residential Duct Cleaning
Sterling’s residential core demands two distinct approaches. In Sterling Park, we’re cleaning 45-to-50-year-old systems with original fiberglass-lined sheet metal or early flex duct that has degraded under decades of Piedmont humidity. In the newer subdivisions near Cascades Parkway or Loudoun County Parkway, we’re removing construction debris that was never extracted after drywall installation. Both get full negative-pressure extraction with HEPA filtration, agitation tools, and the standard photo record.
Commercial Duct Cleaning
Sterling’s commercial base along Route 7 and near Dulles includes office parks, medical suites, and retail spaces with hybrid duct systems. We clean these with the same equipment roster - Nikro and Abatement Technologies negative-pressure units - scaled to commercial plenum dimensions. Scheduling is coordinated to avoid business hours when possible.
Supply Duct Cleaning
This is where Sterling Park’s unique failure mode lives. The supply trunk - the large rectangular duct running from your air handler - may look intact from the outside while its internal fiberglass liner sheds loose fibers into every room. We open the plenum, photograph the liner condition, and perform source removal with agitation tools. If the liner is actively degrading, we encapsulate or recommend replacement, documented in writing.
Return Duct Cleaning
Sterling’s return-air pathways are especially vulnerable. Many Sterling Park homes have vented crawl spaces that pull humid summer air - relative humidity here routinely holds above 75% - directly into return ducts. We’ve found crushed flex duct runs, disconnected boots, and mildew colonies feeding on decades of accumulated debris. Cleaning the return is only part of it; we photograph and report any structural damage that explains why your system keeps loading the filter.
Full System Cleaning
The complete package: supply trunks, branch ducts, returns, registers, and the air handler cabinet. For Sterling homes with 40+ year old systems, this often reveals the full scope of degradation - not just dirt, but liner failure, disconnected runs, and moisture intrusion points.
Video Inspection
Every Sterling job includes camera documentation. We run the scope through each duct run before and after cleaning. The “before” footage establishes what was actually in there; the “after” confirms source removal was effective. This footage is part of your standard job record, not an upsell.
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.
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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.
Before
AfterTrusted Brands We Service in Sterling
Our equipment roster includes Honeywell, Aprilaire, and Guardsman - brands you can verify independently before agreeing to any work. We don’t use proprietary tools with unsearchable specifications. For Sterling homeowners, this means replacement parts and compatible accessories are available through standard supply channels, not locked behind a single vendor. Our Rotobrush and Abatement Technologies cleaning systems are similarly trade-standard equipment, maintained to manufacturer specification and photographed as part of our pre-job setup record.
Common Air Duct Cleaning Problems We See in Sterling Homes
- Collapsing fiberglass liner in Sterling Park supply trunks. The registers look clean. The internal liner doesn’t. We’ve opened trunks where the glass-fiber facing had degraded into loose material the blower had distributed house-wide for years - a failure mode tied specifically to 1970s construction standards.
- Disconnected or crushed flex duct in vented crawl spaces. Sterling’s humidity pocket, sitting just west of Dulles with slowed air movement in still summer conditions, feeds moisture directly into return-air pathways through gaps in crawl-space ductwork.
- Construction drywall dust in 1990s-2000s subdivision ducts. The Loudoun County growth wave added thousands of homes where initial duct loading was never addressed. We still find heavy particulate accumulation in systems 20-30 years old, wearing on blower motors and loading filters prematurely.
- Mildew and mold colonization from humidity intrusion. Sterling’s 75-80% summer relative humidity, combined with vented crawl spaces and aging liner that traps moisture, creates conditions for biological growth that standard filter changes won’t touch.
Pricing for Air Duct Cleaning in Sterling, VA
Here’s what air duct cleaning actually costs in Sterling’s market:
| Service | Typical Range |
|---|---|
| Standard residential full-system cleaning (single furnace, up to 12 registers) | $380-$550 |
| Large home or dual-zone system (13-20 registers) | $520-$680 |
| Video inspection only (no cleaning) | $180-$240 |
| Supply or return duct cleaning (single system, partial) | $280-$420 |
| Duct repair and sealing (per run, after cleaning) | $150-$340 |
What moves the price: register count, accessibility (crawl space vs. basement), liner condition requiring encapsulation, and whether disconnected runs need resealing. We deliver the written price before any work starts - Haven Standard Clause 1. No per-vent add-ons, no equipment fees that appear after arrival. Bring a competitor’s written estimate; we’ll provide a Free Second Opinion, our number next to theirs.
Call (240) 255-4519 for an exact quote - estimates are free.
We Also Serve Cities Near Sterling
Our crews work across Loudoun and Fairfax counties, including Air Duct Cleaning in Sterling and surrounding communities: Herndon, Reston, Leesburg, and Fairfax. Each area has distinct housing stock and ductwork patterns; we adjust equipment and approach accordingly.
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
Sterling Park’s 1970s construction used fiberglass-lined rectangular supply trunks and early flex duct that degrades on a predictable timeline - 40 to 50 years - while newer subdivisions have different issues, primarily construction debris. The liner shedding and crawl-space moisture intrusion in Sterling Park create ongoing contamination that recirculates regardless of filter changes. Call (240) 255-4519 for an exact quote - estimates are free.
It usually means the problem is inside the duct trunk, not at the register. In Sterling Park homes, we regularly find the internal fiberglass liner of rectangular supply trunks actively collapsing while the register itself appears normal - the blower distributes loose fibers and trapped moisture house-wide. A video inspection confirms the location. Call (240) 255-4519 for an exact quote - estimates are free.
Sterling sits in a humidity pocket west of Dulles where summer relative humidity routinely holds above 75-80%, and the Piedmont transition slows air movement in still conditions. In Sterling Park-era homes with vented crawl spaces, this moisture feeds directly into return-air pathways, accelerating mold and mildew colonization and degrading fiberglass liner adhesive. The result is ductwork that fails from the inside out. Call (240) 255-4519 for an exact quote - estimates are free.
Our technician arrives in uniform, identified by name, and conducts a walkthrough with you. We remove and photograph each register, run camera inspection through every accessible duct run, perform source removal with agitation tools under negative-pressure HEPA extraction, then photograph the cleaned surfaces. If we find disconnected runs, liner failure, or moisture damage, we document it and provide a written repair scope with price before proceeding. The complete photo record is delivered as a standard deliverable. Call (240) 255-4519 for an exact quote - estimates are free.
Yes, for a different reason. The 1990s-2000s Loudoun County growth wave added large tract subdivisions where construction drywall dust was never removed from ducts at installation. We’ve cleaned 20-year-old systems in Sterling’s newer areas that still carried heavy particulate loading from original construction, wearing on blower motors and forcing premature filter changes. The photo record shows the difference. Call (240) 255-4519 for an exact quote - estimates are free.
In Sterling Park, our tech opened a 1970s fiberglass-lined rectangular supply trunk off a split-level’s air handler and found the internal liner collapsing into loose fibers that the blower had been distributing house-wide for years. We ran camera inspection through the supply and return ducts, performed source removal with agitation tools under negative pressure and HEPA filtration, then sealed the disconnected run feeding the upstairs bedrooms. The homeowner’s persistent dust and “fiberglass smell” resolved after the liner was encapsulated and the system resealed.
Ready to see what’s actually inside your Sterling ductwork? Call (240) 255-4519. We’ll quote a written price before any work starts, document every run with before-and-after photography, and back the work with our 365-Day Done Right Promise - in writing, on every job.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Sterling and Loudoun County since 2013.