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 Manassas
Air duct cleaning in Manassas typically runs $380-$720 for a full residential system, with video inspection and sealing work quoted separately based on what the camera finds. Most Manassas homes we service are completed in a single scheduled day, and every job starts with a written price before a single panel comes off.
We dispatch crews to Manassas from our Washington, DC coordination office, and we’ve been driving these routes since 2013. We know the difference between a downtown Victorian retrofitted with chase-space ductwork and a split-level off Sudley Road with flex runs buried in knee-wall attics. That local housing knowledge changes what we bring, what we expect to find, and what we quote. If you’re in the Liberia Avenue corridor, the historic district, or the newer subdivisions near Bull Run, your duct system has a specific history that matters for the work. Call (571) 526-0015 and we’ll put a written estimate in front of you before any work starts.
Why CleanRun Air Duct Cleaning Fairfax Is Manassas’s Preferred Air Duct Cleaning Company
We’ve served more than 52,000 homes since 2013, and a significant share of those have been in Prince William County. Manassas customers come back because we show them what we found, not because we told them to trust us. Every visit ends with a Documented Photo Record of every duct run, delivered as a standard job record, so you can see the difference between actual work and vacuum noise.
Our technicians are background-checked, uniformed, and identified by name before arrival under Haven Standard Clause 3: Verified Crews. Tomas Reyes leads the operation, and the 365-Day Done Right Promise is backed in writing on every job, not just stated in marketing copy. If the work isn’t right, we make it right.
We don’t do $79 coupons. We don’t do per-vent pricing that balloons once the truck is in your driveway. We do one flat price per system, agreed in writing before work starts, every time, under Haven Standard Clause 1. Bring a competitor’s written estimate and we’ll put our number next to it for free.
Our Air Duct Cleaning Services in Manassas
Residential Duct Cleaning
Manassas’s housing stock is unusual for Northern Virginia. The historic downtown core has late-19th- and early-20th-century homes that received retrofitted forced-air systems, often with improvised duct routing through old chase spaces. Surrounding that core are massive 1980s-1990s subdivisions with flexible ductwork now 30-40 years old. Our residential cleaning accounts for both: negative-pressure extraction (a sealed vacuum system that pulls debris out without releasing it into your home) for the flex-duct tracts, and careful agitation with camera guidance for the older homes where disconnected runs are common. A typical full residential system in Manassas runs $380-$620.
Commercial Duct Cleaning
Manassas’s commercial base ranges from the historic district’s mixed-use buildings to the retail and office corridors along Sudley Road and Liberia Avenue. Older commercial HVAC systems often share a problem with the residential stock: decades of accumulation in ductwork that was never designed for easy access. We use Rotobrush and Nikro commercial-grade equipment with HEPA filtration, and we photograph every run before and after. Commercial pricing in Manassas typically starts at $850 for smaller systems and scales with square footage and access complexity.
Supply Duct Cleaning
Supply ducts push conditioned air into your rooms. In Manassas’s split-level and bi-level tract homes, these runs were routinely laid through uninsulated attic knee-wall spaces. Decades of thermal cycling cause the inner liner to sag and kink, creating debris traps that standard vacuum equipment misses. We see this pattern on nearly every job in the Sudley and Liberia Avenue corridors. Our supply duct service includes agitation tools that break loose buildup in collapsed sections, followed by negative-pressure extraction. Supply-only cleaning in Manassas typically runs $220-$380.
Return Duct Cleaning
Return ducts pull air back to the HVAC unit for reconditioning. They’re the dirtier side of the system by design, and in Manassas’s humid climate they often harbor mold and dust-mite allergen buildup that a surface cleaning won’t fix. Return ductwork in older Manassas homes is also where we find the most disconnected joints and crushed sections from retrofitted installations. Return-only cleaning typically runs $200-$340, though we often recommend pairing it with supply work for a balanced system.
Full System Cleaning
This is what most Manassas homes actually need. Full system cleaning covers supply runs, return runs, the plenum (the central distribution box where your ducts connect to the HVAC unit), and accessible trunk lines. We include a video inspection of every run before we start, so you see what the camera sees. For Manassas’s 1980s-1990s tract homes with aging flex duct, this is usually the only way to catch collapsed liner and hidden debris pockets. Full system cleaning in Manassas runs $380-$720 depending on system size and access conditions.
Video Inspection
We run a camera through every duct run before quoting sealing or repair work. In Manassas’s downtown historic homes, this routinely reveals disconnected retrofitted runs that no homeowner would know exist. In the 1980s-1990s subdivisions, we find collapsed flex liner, kinked sections, and debris traps that explain why the house stays dusty no matter how often you clean. The video inspection is included in our full system cleaning quote, or available standalone for $150-$220 if you want documentation before deciding on service.
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 Manassas
Our equipment roster includes Rotobrush, Nikro, Abatement Technologies, and Guardsman, professional-grade tools you can look up independently before agreeing to a price. We don’t use shop vacs with fancy labels. The Rotobrush system we deploy on most Manassas residential jobs combines mechanical agitation with HEPA-filtered vacuum extraction, which matters for the mold and fine debris we find in this humid climate. Parts and consumables for these brands are stocked locally, so if your system needs a repair or sealing component alongside cleaning, we’re not waiting on a shipment.
Common Air Duct Cleaning Problems We See in Manassas Homes
- Collapsed flex liner in attic knee-walls. In split-levels off Sudley Road and throughout the Liberia Avenue corridors, flex duct runs laid through uninsulated knee-wall spaces sag and kink after decades of thermal cycling. The inner liner collapses into a debris trap that standard vacuum equipment can’t reach. We find this on nearly every job in those neighborhoods.
- Disconnected retrofitted runs in historic downtown homes. Late-19th- and early-20th-century Manassas homes that received forced-air retrofits often have ductwork routed through improvised chase spaces. Disconnected or crushed runs are the rule, not the exception, and only camera inspection catches them.
- Mold and allergen buildup from sustained humidity. Manassas sits at the Piedmont transition zone with relative humidity regularly above 70% June through September. Condensation forms inside poorly insulated duct sections, creating the damp interior conditions that foster mold growth and dust-mite allergen accumulation. Surface cleaning doesn’t fix this; proper extraction and sealing do.
- Debris accumulation accelerated by heavy AC loads. Manassas’s hot, humid summers place continuous demands on residential cooling systems. That sustained airflow pushes more particulate through duct runs over time, and the condensation traps it. Homes near the Bull Run and Occoquan watersheds see this effect amplified by ground moisture infiltration into crawl-space duct sections.
Pricing for Air Duct Cleaning in Manassas, VA
Here’s what air duct cleaning costs in Manassas’s market, based on system type and what we’ve quoted over the past 24 months:
| Service | Typical Range in Manassas |
|---|---|
| Video Inspection (standalone) | $150-$220 |
| Supply Duct Cleaning Only | $220-$380 |
| Return Duct Cleaning Only | $200-$340 |
| Full Residential System Cleaning | $380-$620 |
| Full System + Sealing (typical for older flex duct) | $580-$720 |
| Commercial System Cleaning | $850-$2,400+ |
What moves you within these ranges? System size, number of registers, access conditions, and whether we find collapsed or disconnected sections that need repair or sealing. We don’t do per-vent pricing that balloons on arrival. We do one flat price per system, written before work starts, every time. Estimates are free. Call (571) 526-0015.
We Also Serve Cities Near Manassas
Our crews work throughout Northern Virginia. If you’re in Centreville, Fairfax, Reston, or Herndon, the same written pricing, documented photo record, and 365-Day Done Right Promise apply. We coordinate scheduling from our Washington, DC office and route teams efficiently across the metro. Learn more about Air Duct Cleaning in Manassas or explore our full Air Duct Cleaning service details.
Serving Manassas, VA - Our Local Coverage Area
We’re based in the Manassas 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 Manassas
The flex duct installed during Manassas’s 1980s-1990s tract-home boom is now 30-40 years old, and it was often laid through uninsulated attic knee-walls where thermal cycling degrades the liner. Decades of expansion and contraction cause sagging, kinking, and collapse that trap debris in ways rigid metal ductwork doesn’t. Newer homes use better materials and routing, so they don’t accumulate the same hidden pockets. If you’re in a split-level off Sudley Road or near Liberia Avenue, this pattern is nearly universal. Call (571) 526-0015 for a video inspection and written quote.
We routinely find three things: collapsed flex liner in knee-wall runs of 1980s-1990s subdivisions, disconnected joints in downtown historic homes with retrofitted chase routing, and mold staining from condensation in poorly insulated sections. The camera shows you exactly what we see before we quote any work. No surprises, no “trust us.” The inspection itself is $150-$220 standalone, or included with full system cleaning.
Cleaning removes what’s already inside. Sealing stops new debris from entering and prevents conditioned air from leaking into unconditioned spaces. In Manassas’s older flex-duct systems, we often find gaps at trunk-to-branch connections and crushed sections that leak more than they deliver. We seal with mastic (a thick, durable paste applied to joints and seams) after cleaning, which is why our full-system-plus-sealing package runs $580-$720. The homeowner in that split-level off Sudley Road? Their “dusty house” complaint stopped after we removed the crushed section and sealed the connections. Cleaning alone wouldn’t have fixed it.
Manassas’s relative humidity stays above 70% from June through September, and the Piedmont location draws moisture from the Bull Run and Occoquan watersheds. That humidity condenses inside poorly insulated duct sections, creating damp surfaces where mold grows and dust-mite allergens multiply. A vacuum-only cleaning dries nothing and seals nothing. We use HEPA-filtered negative-pressure extraction that removes the debris, and we recommend sealing to reduce future moisture infiltration. Homes near watershed areas or with crawl-space duct runs see this effect most acutely.
Supply ducts push conditioned air to your rooms; return ducts pull it back. Returns are inherently dirtier because they handle unfiltered household air. In Manassas’s climate, returns also tend to harbor more mold and allergen buildup from humidity. Supply ducts in local split-levels are where we find the collapsed knee-wall liner. We price them separately because some homeowners only need one side addressed, though we typically recommend both for system balance. Supply-only is $220-$380; return-only is $200-$340. Call (571) 526-0015 for a written quote on your specific system.
Ready to see what’s actually inside your ducts? Call (571) 526-0015 for a free estimate. We’ll put a written price in front of you before any work starts, and you’ll receive a Documented Photo Record of every run when the crew leaves.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Manassas since 2013.