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.
Fast, Reliable Air Duct Cleaning Across Sterling
Air duct cleaning for a typical Sterling home runs $380-$680 for a full system, with older Sterling Park properties sometimes reaching $890-$1,400 when degraded duct board needs removal and sealing. We’re usually scheduling 2-4 days out in Sterling, with dispatch coordinated from our Washington, DC office and crews working Loudoun County daily. If you’re seeing white fibrous debris at your registers or you’ve just bought a resale with no duct history, call (240) 363-3380 - we’ll put a written price in front of you before any panel comes off, and you’ll get a photo record of every run when we leave.
We’ve been working Sterling since 2013, and the housing stock here splits cleanly into two eras with two distinct sets of problems. Our Air Duct Cleaning team knows the difference because we’ve documented it run by run.
Why CleanRun Air Duct Cleaning Washington Is Sterling’s Preferred Air Duct Cleaning Company
Sterling homeowners don’t decide on a duct cleaner because of a coupon. They decide based on what a company can show them in writing. Every CleanRun job in Sterling starts with a fixed price delivered on paper or by email before work begins - Haven Standard Clause 1 - and ends with before-and-after photos inside every duct run, included as standard. No manager approval needed.
Our crews are in Sterling Park, Cascades, and the Route 7 corridor weekly. We’ve documented 52,000+ homes since 2013, and the photo records from Sterling properties are some of the most instructive in our files - delaminated 1970s duct board, crushed flex runs above finished basements, construction particulate from Data Center Alley infiltration. When a Sterling customer shows us a competitor’s written estimate, we provide a Free Second Opinion in writing, line item against line item.
Technicians are background-checked and uniformed under Haven Standard Clause 3: Verified Crews. License number is published below. Tomas Reyes, who leads CleanRun, reviews every Sterling job photo record before it goes to the customer.
Dispatch and scheduling are coordinated from our Washington, DC office, with crews serving Sterling locally. You won’t get a call center in another state.
Our Air Duct Cleaning Services in Sterling

Residential Duct Cleaning
Sterling’s resale market moves fast - new owners frequently inherit HVAC systems with no maintenance history. Our residential cleans start with a video inspection so you see what we see before we quote. In Sterling Park ranches and split-levels, we’re often pulling decades of biological buildup from original fiberglass duct board; in 1990s colonials near Algonkian Parkway, we find sagging flex duct with tears at the plenum connection. The written price covers the full system - no per-vent add-ons.

Commercial Duct Cleaning
Sterling’s commercial base runs along Route 7 and the Loudoun County Parkway corridor, with medical offices, retail, and professional services that can’t afford downtime from contaminated air handlers. We work after-hours and weekends, with the same written pricing and photo documentation. Commercial systems here often show accelerated filter loading from construction particulate generated by Data Center Alley development - a local condition we account for in scope and scheduling.

Supply Duct Cleaning
Supply runs push conditioned air to your registers, and in Sterling they’re where degraded duct board shows itself first. White fibrous debris at the register face means delamination upstream. We clean supply runs with negative-pressure extraction and agitation tools, but if the duct board is shedding, cleaning alone won’t stop it - the degraded material has to be removed and the run sealed. We photograph every elbow and transition so you see the difference between surface debris and structural failure.

Return Duct Cleaning
Return ducts pull air back to the handler, and in Sterling they work hardest during our brutal pollen season - oak and cedar load these grilles fast. Older Sterling Park homes often have return plenums built from the same fiberglass duct board as the supplies, with the same delamination risk. Newer homes may have flex return trunks that sag in humid summer conditions, creating low spots where biological material collects. We inspect and document both paths.

Full System Cleaning
This is what most Sterling homes actually need - supply and return runs, trunk lines, plenum, and air handler cabinet. A full system clean lets us find the problems that partial cleans miss: disconnected trunks above finished ceilings, crushed flex runs hidden behind drywall, degraded duct board at the air handler connection. The price is fixed per system before we start, and the photo record covers every component we touch.

Video Inspection
Every Sterling job starts here. We run a camera through your ductwork and show you the footage before quoting. In Sterling Park homes, we’re often documenting delaminated duct board that the homeowner didn’t know existed. In newer properties, we find construction debris from original build-out or sagging flex that previous owners never addressed. The video becomes part of your job record, dated and archived.

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.
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You approve before work beginsNothing starts until you say go.
Before
AfterTrusted Brands We Service in Sterling
CleanRun crews in Sterling work with professional-grade equipment from Abatement Technologies, Rotobrush, and Guardsman - brands you can look up before you agree to a price. Abatement Technologies builds the negative-pressure HEPA systems we use on Sterling Park jobs where degraded fiberglass requires contained extraction. Rotobrush agitation tools handle the mechanical cleaning of flex duct in 1990s-2000s builds. Guardsman supplies the sealing compounds we use when duct board removal leaves a run that needs reconnection and airtight finish. We don’t show up with shop-vacs and hope you can’t tell the difference.
Common Air Duct Cleaning Problems We See in Sterling Homes

- Delaminated fiberglass duct board in Sterling Park. Original 1960s-1980s duct board has reached end of life. Interior surfaces separate, shedding glass fibers directly into the airstream. Homeowners notice throat irritation or spot white debris at registers. Cleaning removes the loose material but won’t stop the shedding - the degraded board has to come out and the run has to be sealed.
- Crushed or disconnected flex duct in 1990s-2000s builds. Loudoun’s tech-boom construction often used low-grade flexible duct with inadequate support. Runs sag over time, especially in humid summer conditions, creating airflow chokes and hidden contamination upstream. New owners of Sterling resales find these problems when rooms won’t heat or cool evenly.
- Construction particulate infiltration from Data Center Alley activity. The relentless commercial build-out along Route 7 and Loudoun County Parkway generates fine particulate that infiltrates residential HVAC systems at unusually high rates. Filters load faster, and ductwork accumulates material that standard homeowner maintenance won’t catch.
- Biological growth from summer humidity cycling. Northern Virginia’s humid subtropical climate pushes indoor humidity into ranges that promote mold colonization, especially in older Sterling Park homes with porous duct board insulation. The problem compounds when pollen season loads return grilles and the system runs long cooling cycles with inadequate dehumidification.
Pricing for Air Duct Cleaning in Sterling, VA
Here’s what air duct cleaning actually costs in Sterling’s market:
| Service | Typical Range in Sterling |
|---|---|
| Full residential system cleaning (standard flex/metal duct) | $380 - $680 |
| Full system with video inspection and photo record | $450 - $750 |
| Sterling Park homes requiring duct board removal + sealing | $890 - $1,400 |
| Commercial system cleaning (per air handler) | $680 - $1,200 |
| Video inspection only (credited toward work) | $125 - $175 |
What moves the number: system size, accessibility of trunk lines, whether duct board degradation requires removal and sealing, and contamination severity documented during video inspection. We don’t do per-vent pricing - one flat price per system, agreed in writing before work starts. Every estimate is free. Call (240) 363-3380 to schedule.
We Also Serve Cities Near Sterling

Our crews work Loudoun and Fairfax counties daily, with regular routes through Sterling, Herndon, Reston, Fairfax, and Falls Church. Same written pricing, same photo documentation, same Haven Standard - no matter which city we’re dispatched to.
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

The original fiberglass duct board has delaminated, so its interior surface is actively shedding glass fibers into your airstream - a structural failure, not a cleanliness issue. Standard agitation and extraction remove loose debris but can’t re-bond the fiberglass mat. We remove the degraded board, clean the remaining runs, then seal and reconnect the trunk so fibers stop entering the system. Call (240) 363-3380 for a video inspection and written quote - estimates are free.
A crushed run chokes airflow and creates negative pressure that pulls unconditioned attic or crawl space air into the system. A disconnected run dumps conditioned air into your framing and draws return air from the same spaces. Both bypass your filter and introduce particulate, humidity, and biological material you didn’t filter for. We find these with video inspection, document them in your photo record, and reconnect or replace the run as part of a fixed-scope job. Call (240) 363-3380 for an exact quote - estimates are free.
Every job starts with video inspection - camera through every accessible run, footage reviewed with you before we quote. In Sterling Park homes, we’re looking for duct board delamination and disconnected trunks above finished basements. In 1990s-2000s builds near Cascades or Route 7, we’re checking flex duct support and sag, plus construction debris from original build-out. The video becomes part of your documented job record. Call (240) 363-3380 to schedule - estimates are free.
Yes - it’s almost always degraded fiberglass duct board, not ordinary dust. The material irritates airways and continues shedding until the source is removed. We’ve documented this in dozens of Sterling Park homes where homeowners assumed pollen or general dust. A video inspection confirms the source, and we quote removal and sealing in writing before any work begins. Call (240) 363-3380 - estimates are free.
Sterling’s spring oak and cedar pollen loads return-air grilles heavily, and the debris that makes it past your filter accumulates in ductwork - especially in systems that already have low airflow from crushed or sagging runs. Homes with documented duct board degradation or flex duct issues benefit from more frequent inspection, since pollen provides organic material that supports biological growth in humid summer conditions. We don’t sell maintenance contracts - we document what we find and let you decide based on evidence. Call (240) 363-3380 for a video inspection and written assessment - estimates are free.
Ready to see what’s inside your ducts? Call CleanRun at (240) 363-3380 for a free estimate. We’ll put a written price in front of you before any work starts, document every run with before-and-after photos, and back the job with our 365-Day Done Right Promise - in writing, on every Sterling home we serve.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Sterling since 2013.




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