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
AfterAir Duct Cleaning in Gaithersburg, MD
HVAC cleaning in Gaithersburg typically runs $320-$580 for a full system, and most jobs are scheduled within a week. The city’s concentration of 1970s-era townhomes in Montgomery Village and humid Piedmont climate create conditions we don’t see in nearby Rockville or Germantown at the same scale. Call (571) 487-7204 for a written estimate before any work starts.
CleanRun’s crews coordinate dispatch from our Washington, DC office and serve Gaithersburg homes with equipment from Rotobrush, Nikro, and Abatement Technologies. Every job begins with a written price under Haven Standard Clause 1 and ends with a Documented Photo Record of every duct run.
Why Gaithersburg Homes Are Different
Gaithersburg sits in the humid Piedmont zone where summer dew points regularly hit the low-to-mid 70s°F. The low-lying corridors near Seneca Creek trap additional moisture, and HVAC systems run near-continuously for dehumidification from June through September. That persistent wet-coil condition seeds microbial growth deep into supply ductwork.
The housing stock compounds the problem. Montgomery Village, one of the largest planned communities on the East Coast, contains thousands of townhomes and garden condos built between 1968 and the mid-1980s. Original fiberglass-lined rectangular trunk lines and early-generation flex duct are still common. Cold snaps following warm spells cause condensation inside poorly insulated ducts in unconditioned chases, accelerating debris adhesion.
Experienced Gaithersburg techs bring a camera scope as standard equipment for Montgomery Village calls. The original 1970s flex duct in narrow vertical chases has often kinked, torn at the inner liner, and compacted with 40-plus years of debris to the point where a cleaning wand can’t navigate it.
Our Main Gaithersburg Services
Gaithersburg homeowners call us most often for these three services:
Air Duct Cleaning in Gaithersburg
We clean the full supply and return network with negative-pressure extraction and rotary brush contact, photographing every run before and after. Montgomery Village’s aging mylar flex duct and Kentlands’ multi-story chases each present distinct routing challenges our crews plan for in advance. Air Duct Cleaning in Gaithersburg
Dryer Vent Cleaning in Gaithersburg
Lint accumulation in dryer vents is accelerated in Gaithersburg’s humid summers, where moisture binds fine particles into dense blockages. We clear the full vent run with rotary tools and airflow verification, documented with before-and-after photos. Dryer Vent Cleaning in Gaithersburg
Duct Repair & Sealing in Gaithersburg
Collapsing flex duct, disconnected joints in tight chases, and failed trunk-line insulation are routine finds in Montgomery Village and the older Kentlands sections. We scope before quoting, then deliver a written repair scope with flat pricing. Duct Repair & Sealing in Gaithersburg
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 Gaithersburg
HVAC cleaning in Gaithersburg addresses a specific regional problem: near-continuous summer dehumidification leaves evaporator coils, blower assemblies, and plenums coated in microbial film that standard filter changes never reach. The 1970s-era systems common in Montgomery Village were designed before modern IAQ standards and run with components that trap debris in ways newer equipment doesn’t. HVAC Cleaning from CleanRun targets these components with documented photo verification of every step.
Evaporator Coil Cleaning
Signs you need it
Musty odor when the AC cycles on, visible mold on the coil face, or ice formation during normal operation.
What it costs in Gaithersburg
Evaporator coil cleaning in Gaithersburg typically ranges from $180 to $340.
How we do it
We access the coil through the plenum, apply foaming cleaner, rinse with low-pressure water capture, and photograph the coil surface before and after treatment.
Blower Cleaning
Signs you need it
Reduced airflow at registers, vibration or noise from the air handler, or dust streaking on the blower housing.
What it costs in Gaithersburg
Blower cleaning in Gaithersburg typically ranges from $140 to $260.
How we do it
We remove the blower assembly, clean blades and housing with compressed air and contact tools, balance the fan, and document runout with photos.
What HVAC Cleaning Costs in Gaithersburg
| Item | Typical range in Gaithersburg |
|---|---|
| Evaporator coil cleaning | $180 - $340 |
| Blower cleaning | $140 - $260 |
| Full HVAC system cleaning | $320 - $580 |
How do I know my HVAC system needs cleaning, not just my ducts?
If you smell must when the AC starts, see ice on the coil, or feel weak airflow despite clean filters, the problem is likely in the HVAC components, not the duct runs. Call (571) 487-7204 and we’ll scope the system to show you.
Can HVAC cleaning fix the humidity problems in my Montgomery Village home?
Cleaning restores airflow and coil efficiency, which improves dehumidification capacity, but it won’t fix undersized equipment or duct leaks. We photograph every finding and note any repair needs in writing.
Air Quality & Sanitizing in Gaithersburg
Air quality and sanitizing in Gaithersburg targets the microbial growth that humid Piedmont summers seed inside ductwork, particularly in Montgomery Village’s 40-to-55-year-old systems where condensation cycles have been repeating for decades. The low-lying areas near Seneca Creek see this problem intensified by ground moisture that raises baseline humidity even when outdoor dew points moderate. Air Quality & Sanitizing from CleanRun applies EPA-registered treatments with full documentation.
Mold Treatment
Signs you need it
Visible black or green growth on register fins, musty odor that persists after duct cleaning, or allergy symptoms that worsen when the system runs.
What it costs in Gaithersburg
Mold treatment in Gaithersburg typically ranges from $280 to $520.
How we do it
We apply an EPA-registered antimicrobial fog to all duct surfaces, treat the plenum and coil, and provide lab-ready photo documentation of treated areas.
UV Light Installation
Signs you need it
Recurring mold after professional cleaning, chronic musty odor, or a family member with mold-sensitive respiratory conditions.
What it costs in Gaithersburg
UV light installation in Gaithersburg typically ranges from $340 to $620.
How we do it
We mount a Honeywell or Aprilaire UV-C lamp in the supply plenum, wire to the blower circuit for automatic operation, and photograph the installed position for your records.
What Air Quality & Sanitizing Costs in Gaithersburg
| Item | Typical range in Gaithersburg |
|---|---|
| Mold treatment | $280 - $520 |
| UV light installation | $340 - $620 |
| Full air quality package | $480 - $860 |
Is mold in my ducts dangerous, or just unpleasant?
Most duct mold in Gaithersburg is Cladosporium or Penicillium, which aggravates allergies and asthma rather than causing acute toxicity, but any mold amplification signals moisture problems that will worsen without treatment. Call (571) 487-7204 for a scope and written assessment.
Will UV lights actually prevent mold from coming back?
UV-C lamps prevent mold colonization on the coil and nearby plenum surfaces they illuminate, but they don’t treat the full duct network; we pair them with proper cleaning and moisture control recommendations.
Brands We Service in Gaithersburg
We stock parts and service equipment from Honeywell, Aprilaire, Rotobrush, and Nikro, with most replacement components available for next-day installation in the Gaithersburg area. our brands
Pricing for Air Duct Cleaning in Gaithersburg, MD
| Service | Typical range in Gaithersburg |
|---|---|
| Air duct cleaning (whole system) | $280 - $480 |
| Dryer vent cleaning | $120 - $220 |
| Evaporator coil cleaning | $180 - $340 |
| Blower cleaning | $140 - $260 |
| Full HVAC system cleaning | $320 - $580 |
| Mold treatment | $280 - $520 |
| UV light installation | $340 - $620 |
| Full air quality package | $480 - $860 |
| Duct repair & sealing (per system) | $380 - $740 |
Prices increase in Gaithersburg when access is limited by tight Montgomery Village chases requiring additional labor, or when multiple systems serve the same home. Every price is written and agreed before work starts under Haven Standard Clause 1, with no per-vent add-ons.
Neighborhoods We Serve in Gaithersburg
CleanRun crews work throughout Gaithersburg, from the 1970s townhomes of Montgomery Village to the newer Kentlands and Lakelands developments. Scheduling is typically available within a week for standard service calls.
- Montgomery Village
- Kentlands
- Lakelands
- Quince Orchard
- Washington Grove
Service Area - Cities Near Gaithersburg
Our crews serve homeowners throughout central Montgomery County, including Montgomery Village, MD, Rockville, MD, Germantown, MD, and Potomac, MD. Dispatch is coordinated from our Washington, DC office with local routing for each area’s housing stock and traffic patterns.
Serving Gaithersburg, MD - Our Local Coverage Area
We’re based in the Gaithersburg 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 Gaithersburg
Standard residential duct cleaning and HVAC maintenance do not require permits in Gaithersburg; duct replacement or major modifications may need Montgomery County permitting, which we handle as part of the written scope when applicable.
Most Montgomery Village village associations require 24-hour notice for service vehicles but do not restrict indoor work; we coordinate access timing with you and provide technician identification in advance under Haven Standard Clause 3.
Standard appointments are typically available within 5-7 business days; urgent mold or system-failure situations are prioritized. Call (571) 487-7204 for current availability and a written estimate.
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 Gaithersburg 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."My allergies genuinely improved. They also told me the ducts did not need sealing, which I had been quoted for elsewhere."
- Petra K."On time, professional, and explained what the readings meant without talking down to me."
- Warren E.