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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Before
AfterAir Duct Cleaning in Fairfax, VA
HVAC cleaning in Fairfax typically addresses 40-60 year old fiberglass-lined ductwork in the area’s dominant 1960s-1980s colonials and split-levels, where Mid-Atlantic humidity drives mold and debris accumulation that standard filter changes cannot reach. CleanRun crews photograph every duct run before and after work, with a written price agreed before any panel comes off. Call (240) 255-4519 for a free estimate.
Why Fairfax Homes Are Different
Fairfax sits at the epicenter of the DC metro’s postwar federal-workforce suburban boom, meaning the city and surrounding County are saturated with 1960s-1980s colonials and split-levels whose original fiberglass-lined sheet-metal ductwork is now 40-60 years old. The Mid-Atlantic’s notoriously high summer humidity - Fairfax regularly sees relative humidity above 70% from June through September - accelerates moisture infiltration and mold colonization inside this aging ductwork, making contaminated systems a near-universal finding in the area’s dominant housing stock rather than an exception.
The overwhelming majority of Fairfax’s single-family stock consists of 2-3 story colonials and split-levels built between the late 1950s and mid-1980s to house the expanding federal and defense-contractor workforce. These homes typically feature long, multi-branch duct runs in unconditioned attics or crawlspaces and original fiberglass duct liner that has had decades to delaminate and shed particulates into the airstream. Many neighborhoods, such as Mantua and Greenfield, developed in the 1950s-60s, still have never had a professional duct cleaning, so technicians routinely encounter 50-plus years of accumulated debris.
In the split-levels and ramblers of Fairfax’s oldest subdivisions like Mantua, technicians frequently find original fiberglass duct liner that has fully delaminated from the sheet-metal shell, meaning the cleaning job pivots from a standard brush-and-vacuum scope to a liner-removal-and-reline project. This failure mode appears far less often in the newer housing stock of neighboring Reston or Herndon.
Our Main Fairfax Services
These are the three services Fairfax homeowners call about most. Each has its own dedicated Fairfax page with full pricing and scope details.
Air Duct Cleaning in Fairfax
Our Air Duct Cleaning in Fairfax covers the complete supply and return network, including trunk lines, branch ducts, and registers, with negative-pressure extraction and rotary brush agitation. In Fairfax’s older colonials, we regularly find collapsed flex-duct sections in attics where summer heat and winter cold have degraded the material over decades. Every job includes a Documented Photo Record of every run, delivered as part of the standard job record.
Dryer Vent Cleaning in Fairfax
Our Dryer Vent Cleaning in Fairfax removes lint buildup from the appliance connection through the exterior termination, using high-velocity air tools and visual inspection cameras. Fairfax’s mature tree canopy means exterior vents often include bird guards or pest screens that trap debris; we clean and verify airflow at the termination point. The job concludes with before-and-after photos of the vent interior.
Duct Repair & Sealing in Fairfax
Our Duct Repair & Sealing in Fairfax addresses the disconnected joints, crushed flex runs, and deteriorated liner that we find in most pre-1990 Fairfax homes. Sealing is done with mastic and metal-backed tape, not duct tape, and every repair is photographed before insulation is replaced. Written scope and price are delivered before work begins, per Haven Standard Clause 1.
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.
- 4
You approve before work beginsNothing starts until you say go.
Before
AfterHVAC Cleaning in Fairfax
Fairfax’s 40-60 year old HVAC systems run almost year-round between humid summers and cold winters, cycling air through components that accumulate biological growth and debris the homeowner cannot see. CleanRun’s HVAC Cleaning targets the evaporator coil, blower assembly, and air handler - the parts that actually condition your air - with documented photo evidence of what we find. In this market, we regularly show customers photos of coils coated in black mold or blower wheels caked with decades of dust that has bypassed the filter.
Evaporator Coil Cleaning
Signs you need it
Ice buildup on refrigerant lines, weak airflow from vents, or musty odors when the AC cycles on in summer.
What it costs in Fairfax
Evaporator coil cleaning in Fairfax typically runs $280-$420 for accessible A-coils in attic or closet installations.
How we do it
We remove the access panel, apply foaming cleaner to the coil fins, rinse with low-pressure water to avoid fin damage, and photograph the before and after condition.
Blower Cleaning
Signs you need it
Vibration or noise from the air handler, uneven heating or cooling between rooms, or visible dust puffing from registers at startup.
What it costs in Fairfax
Blower assembly cleaning in Fairfax typically runs $240-$360, including removal of the squirrel cage for thorough cleaning.
How we do it
We disconnect power, remove the blower motor and wheel, clean each blade with compressed air and solvent, balance the assembly, and reinstall with torque-verified fasteners.
What HVAC Cleaning Costs in Fairfax
| Item | Typical range in Fairfax |
|---|---|
| Evaporator coil cleaning | $280-$420 |
| Blower assembly cleaning | $240-$360 |
| Full HVAC cleaning (coil + blower + air handler) | $520-$780 |
How do I know my HVAC components are actually dirty?
CleanRun photographs every component before touching it, so you see the debris buildup yourself before approving any work. The photo record is included with every job, not sold as an add-on.
Can HVAC cleaning fix my high summer electric bills?
A dirty evaporator coil or blower wheel can reduce system efficiency by 15-25%, so cleaning often lowers runtime and energy use, though duct leakage may also contribute in older Fairfax homes. Call (240) 255-4519 for an exact quote - estimates are free.
Air Quality & Sanitizing in Fairfax
Fairfax’s 70%+ summer humidity and 40-60 year old duct liner create chronic mold-growth conditions that standard cleaning alone cannot prevent from returning. CleanRun’s Air Quality & Sanitizing targets the biological contamination inside the ductwork and the HVAC cabinet, with moisture-source identification so the problem does not recur. We use EPA-registered sanitizers applied with controlled droplet size, not fogging that leaves residue on surfaces.
Mold Treatment
Signs you need it
Visible black or green growth on register faces, musty odor when the system runs, or recent water intrusion in the basement or attic.
What it costs in Fairfax
Whole-system mold treatment in Fairfax typically runs $450-$680, including application to all duct runs and the air handler.
How we do it
We apply an EPA-registered antimicrobial through the duct system at controlled pressure, treat the air handler interior, and identify the moisture source that allowed growth.
UV Light Installation
Signs you need it
Recurring mold despite previous cleaning, chronic allergy symptoms that worsen when the HVAC runs, or a system located in a damp crawlspace or basement.
What it costs in Fairfax
UV-C lamp installation in Fairfax typically runs $380-$550 for a single-lamp system with annual replacement bulb program.
How we do it
We mount a UV-C lamp with sight-glass access in the supply plenum, wire to the blower circuit for automatic operation, and verify irradiance with a meter at installation.
What Air Quality & Sanitizing Costs in Fairfax
| Item | Typical range in Fairfax |
|---|---|
| Whole-system mold treatment | $450-$680 |
| UV-C lamp installation | $380-$550 |
| Combined mold treatment + UV installation | $780-$1,100 |
Will mold come back after treatment?
Mold returns if the moisture source persists, so we identify and document the source - usually uninsulated duct in a humid attic or crawlspace - and recommend correction before treatment. Call (240) 255-4519 for an exact quote - estimates are free.
Is the sanitizer safe for my family and pets?
We use EPA-registered products applied at manufacturer-specified concentration with controlled droplet size, and we ventilate the system before returning it to service; no fogging residue remains on surfaces.
Brands We Service in Fairfax
CleanRun technicians carry parts and use equipment from Nikro, Honeywell, Aprilaire, and Abatement Technologies - brands recognized in the duct-cleaning trade for professional-grade negative-pressure extractors, HEPA filtration, and antimicrobial application systems. Most common components are stocked locally, with same-week availability on specialized orders. See our brands for the full equipment roster.
Pricing for Air Duct Cleaning in Fairfax, VA
| Service | Typical range in Fairfax |
|---|---|
| Whole-house air duct cleaning (up to 10 vents) | $380-$580 |
| Whole-house air duct cleaning (11-20 vents) | $480-$720 |
| Dryer vent cleaning | $140-$220 |
| Duct repair & sealing (per system) | $320-$580 |
| Evaporator coil cleaning | $280-$420 |
| Blower assembly cleaning | $240-$360 |
| Full HVAC cleaning (coil + blower + air handler) | $520-$780 |
| Mold treatment (whole system) | $450-$680 |
| UV-C lamp installation | $380-$550 |
| Combined mold treatment + UV installation | $780-$1,100 |
Price in Fairfax is driven primarily by system accessibility - attic installations in split-levels take longer than basement utility rooms - and by the condition of original fiberglass liner, which may require removal rather than standard cleaning. Every job starts with a written price before any work begins, per Haven Standard Clause 1; no per-vent add-ons, no post-arrival upsells.
Neighborhoods We Serve in Fairfax
CleanRun crews work throughout Fairfax city and the surrounding County, with dispatch coordinated from our Washington, DC office. Most Fairfax appointments are scheduled within a 3-5 day window.
- Mantua
- Greenfield
- Fairfax Station
- Kings Park
- Woodson
Service Area - Cities Near Fairfax
CleanRun serves the full Northern Virginia corridor surrounding Fairfax, including Reston, VA, Herndon, VA, Sterling, VA, and Arlington, VA. Crews are routed from our metro-area dispatch, so scheduling across these markets uses the same calendar and the same technician standards.
Serving Fairfax, VA - Our Local Coverage Area
We’re based in the Fairfax 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 About Air Duct Cleaning in Fairfax
No permit is required for standard duct cleaning or HVAC component cleaning in Fairfax city or Fairfax County; duct replacement or modification that alters the building’s mechanical plan may require a county permit, and we handle that documentation when applicable. Call (240) 255-4519 if your project involves structural duct modification.
Most Fairfax HOAs do not restrict indoor service appointments, though some older communities like Mantua have parking or truck-size limitations we accommodate by confirming vehicle dimensions at booking. We carry proof of insurance and licensing for any HOA office that requests documentation.
Most Fairfax appointments are available within 3-5 business days; we do not maintain emergency or same-day dispatch for duct cleaning, as proper scope assessment and equipment preparation take time that benefits the final result. Call (240) 255-4519 to check current availability.
What happens when you call
- 1A real person answersNo phone trees - talk to a local air duct cleaning pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Fairfax Customers Say
"Flat price agreed up front, no per-vent add-ons at the end. That was the whole reason I did not call the coupon company."
- Suzanne B."Thorough job on the ducts and the dryer vent. Left the house clean and the paperwork was clear."
- Rafael I."On time, professional, and explained what the readings meant without talking down to me."
- Warren E.