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.
Before
After
Before
After
Before
AfterAir Duct Cleaning in Fairfax, VA
Whole-system HVAC cleaning in Fairfax typically runs $380-$620 for a single-zone home and $720-$1,100 for dual-zone systems, with most jobs completed in one scheduled day. Fairfax’s 1960s-1980s duct board housing stock and humid subtropical climate create conditions that standard suburban cleaning approaches often miss, particularly in attic and crawl-space runs where moisture degradation accelerates. We dispatch crews from our Washington, DC office to serve Fairfax directly, and every job starts with a written price before any panel comes off. Call (571) 520-6317 for a free estimate.
Why Fairfax Homes Are Different
Fairfax’s suburban build-out peaked during the 1960s through 1980s, leaving thousands of homes with original fiberglass duct board HVAC systems, not sheet metal, that are now 40-60 years old. In Fairfax’s persistently humid summers, these aging duct board interiors deteriorate, shed glass fibers, and harbor mold colonies that standard cleaning techniques designed for sheet-metal systems can actually worsen, making pre-cleaning inspection and method selection a genuine technical differentiator here versus newer-built suburbs to the west in Loudoun County.
The dominant housing stock, two-story colonials and split-levels in neighborhoods like Burke, the City of Fairfax core, and Fair Oaks, typically features extensive multi-zone ductwork runs through unconditioned attics and crawl spaces. Summer relative humidity above 80% for weeks at a time sustains mold amplification inside these runs. The DC metro’s heavy spring oak and tree pollen season, among the worst-ranked in the Mid-Atlantic, systematically loads return-air ducts with allergens that accumulate year over year.
Fairfax also has an unusually high concentration of federal government employees and cleared defense contractors who work from home full time. Technicians here increasingly encounter clients whose home offices must meet informal indoor-air-quality standards tied to their work environment, creating demand for post-cleaning air quality documentation that almost never comes up on typical residential jobs in neighboring Prince William County.
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
We clean every duct run in the system with negative-pressure extraction, photographing the interior before and after each run. In Fairfax’s older duct board homes, we first inspect with a borescope to determine whether mechanical brushing or gentler contactless methods will protect the fiberglass liner. Every job concludes with a Documented Photo Record delivered to the customer. Air Duct Cleaning in Fairfax
Dryer Vent Cleaning in Fairfax
Dryer vent blockages in Fairfax’s split-level and colonial stock often occur in long horizontal runs through unconditioned crawl spaces where lint combines with summer humidity to form dense mats. We remove the obstruction with rotary tools and airflow verification, then photograph the full run. The written price is set before work begins. Dryer Vent Cleaning in Fairfax
Duct Repair & Sealing in Fairfax
Fairfax’s aging duct board systems develop seam separations and compression damage in attic runs where summer heat cycling degrades the fiberglass structure. We assess with camera inspection, then repair or replace damaged sections and seal with mastic or metal-backed tape appropriate to the material. Written scope and price before any repair starts. Duct Repair & Sealing in Fairfax
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.
BeforeAfterHVAC Cleaning in Fairfax
Whole-system HVAC cleaning in Fairfax addresses the unique degradation pattern of 40-60 year old duct board systems in humid attic and crawl-space conditions. Our crews use Rotobrush and Abatement Technologies equipment to clean coils, blowers, and air handlers without damaging aging fiberglass components, with every step photographed for the Documented Photo Record. HVAC Cleaning service details are available on our hub page.
Evaporator Coil Cleaning
Signs you need it
Ice formation on refrigerant lines, weak airflow from registers, or musty odors when the AC cycles on in July humidity.
What it costs in Fairfax
Evaporator coil cleaning in Fairfax typically ranges $180-$340 for accessible attic or basement units, and $280-$480 for crawl-space coils requiring additional access work.
How we do it
We apply foaming cleaner to the coil fins, rinse with low-pressure water to protect the drain pan, and verify temperature drop across the coil before closing the access panel.
Blower Cleaning
Signs you need it
Vibration or noise from the air handler, uneven airflow between rooms, or dust streaking from supply registers in Fairfax’s pollen-heavy spring season.
What it costs in Fairfax
Blower assembly cleaning in Fairfax ranges $160-$290 for standard split-system blowers and $240-$420 for multi-speed or ECM blower motors requiring careful handling.
How we do it
We remove the blower housing, clean the wheel and motor housing with compressed air and contact vacuum, balance the assembly, and photograph the before and after condition.
What HVAC Cleaning Costs in Fairfax
| Item | Typical range in Fairfax |
|---|---|
| Evaporator coil cleaning | $180-$480 |
| Blower cleaning | $160-$420 |
| Full system HVAC cleaning (single-zone) | $380-$620 |
| Full system HVAC cleaning (dual-zone) | $720-$1,100 |
How do I know the HVAC cleaning was actually done?
Every duct run, coil, and blower compartment is photographed before and after, with images delivered as part of the standard job record under Haven Standard Clause 2. You see the debris that was removed, not just a verbal report. Call (571) 520-6317 to schedule.
Why does HVAC cleaning cost more in older Fairfax homes?
Duct board systems require gentler, slower methods than sheet metal, and attic or crawl-space access in split-levels adds labor time. The written price reflects the actual scope before work starts, not a low opener with add-ons later.
Air Quality & Sanitizing in Fairfax
Air quality and sanitizing in Fairfax targets mold amplification in aging duct board systems and allergen loading from the DC metro’s severe spring pollen season. Federal and defense contractor home offices here increasingly require documented post-treatment air quality records, which we provide as standard deliverables under Haven Standard Clause 4. Air Quality & Sanitizing hub details are available for review.
Mold Treatment
Signs you need it
Musty odors when the system runs, visible discoloration on duct board interiors, or aggravated allergy symptoms during Fairfax’s humid summer months.
What it costs in Fairfax
Mold treatment in Fairfax ranges $450-$780 for localized duct board remediation and $890-$1,400 for whole-system treatment with post-treatment verification.
How we do it
We apply EPA-registered antimicrobial through the duct system with controlled fogging equipment, then run the fan to distribute and verify coverage with surface sampling.
UV Light Installation
Signs you need it
Recurring mold growth despite cleaning, chronic musty odors, or a home office requiring documented ongoing microbial control.
What it costs in Fairfax
UV-C light installation in Fairfax ranges $320-$550 for single-lamp systems and $580-$920 for dual-lamp configurations with installation in the air handler or plenum.
How we do it
We mount the lamp assembly downstream of the evaporator coil with a sight glass for inspection, wire to the blower circuit for automatic operation, and photograph the installation.
What Air Quality & Sanitizing Costs in Fairfax
| Item | Typical range in Fairfax |
|---|---|
| Mold treatment (localized) | $450-$780 |
| Mold treatment (whole-system) | $890-$1,400 |
| UV light installation (single-lamp) | $320-$550 |
| UV light installation (dual-lamp) | $580-$920 |
Do I need air quality documentation for my home office?
Many Fairfax clients with federal or defense contractor remote work request post-treatment particulate and microbial reports; we include these as standard deliverables under Haven Standard Clause 4 when specified at booking. Call (571) 520-6317 to discuss scope.
How is mold treatment different from standard duct cleaning?
Standard cleaning removes debris; mold treatment applies EPA-registered antimicrobial agents to address active colonization in Fairfax’s humid duct board systems, with verification sampling to confirm reduction.
Brands We Service in Fairfax
We stock parts and service equipment from Honeywell, Aprilaire, Guardsman, and other major manufacturers. Most replacement components for Fairfax’s common HVAC systems are available same-day from our Washington, DC inventory. our brands
Pricing for Air Duct Cleaning in Fairfax, VA
| Service | Typical range in Fairfax |
|---|---|
| Single-zone air duct cleaning | $380-$620 |
| Dual-zone air duct cleaning | $720-$1,100 |
| Dryer vent cleaning | $120-$220 |
| Evaporator coil cleaning | $180-$480 |
| Blower cleaning | $160-$420 |
| Air handler cleaning | $240-$380 |
| Mold treatment (localized) | $450-$780 |
| Mold treatment (whole-system) | $890-$1,400 |
| UV light installation (single-lamp) | $320-$550 |
| UV light installation (dual-lamp) | $580-$920 |
Prices increase in Fairfax when duct board systems require gentler, slower methods than sheet metal, or when attic and crawl-space access demands additional setup time. Every price is written and agreed before work starts, with no per-vent add-ons or post-arrival upsells.
Neighborhoods We Serve in Fairfax
We serve Fairfax homeowners across the county’s full range of housing eras, from 1960s split-levels to post-1990 colonials. Crews are dispatched from our Washington, DC office with routes optimized for same-week scheduling throughout the area.
- Burke
- City of Fairfax core
- Fair Oaks
- Oakton
- Vienna (Fairfax County portion)
Service Area - Cities Near Fairfax
CleanRun serves the full Northern Virginia corridor surrounding Fairfax. We regularly schedule work in Chantilly, VA, Centreville, VA, Reston, VA, and Falls Church, VA, with crews routing from our Washington, DC office to minimize transit time across the metro area.
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
Most Fairfax HOAs do not require advance notice for interior residential service work, though gated communities like those in Fair Oaks may need entry coordination. We handle access protocol confirmation when you book, and our uniformed technicians carry identification under Haven Standard Clause 3.
We typically schedule Fairfax appointments within 3-5 business days, with routing optimized from our Washington, DC office to cover the county efficiently. Emergency mold or air quality concerns receive priority scheduling. Call (571) 520-6317 for next available dates.
Yes, we service homes throughout the City of Fairfax core, including properties near the historic district. Older homes there often have modified or hybrid duct systems that benefit from our pre-cleaning borescope inspection to determine appropriate methods.
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
"They found a disconnected duct in the crawl space that had been dumping conditioned air under the house for years. Photographed it, quoted the repair, fixed it."
- Devon A."On time, professional, and explained what the readings meant without talking down to me."
- Warren E."My allergies genuinely improved. They also told me the ducts did not need sealing, which I had been quoted for elsewhere."
- Petra K.