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 Gaithersburg, MD
HVAC cleaning in Gaithersburg typically runs $380-$620 for a whole-system job, with air quality and sanitizing services adding $220-$480 depending on whether microbial treatment or UV installation is needed. We’re CleanRun, and we dispatch crews to Gaithersburg from our Washington, DC office to handle the specific problems this city’s housing stock creates: original fiberglass duct board in Montgomery Village townhomes shedding particulates, and the Piedmont Plateau’s higher humidity pushing mold risk in unsealed systems. Call (240) 771-1508 for a written estimate before any work starts.
Why Gaithersburg Homes Are Different
Gaithersburg sits at roughly 500 feet on the Piedmont Plateau, a transition zone that traps more precipitation and ground fog than lower suburbs toward the coastal plain. That extra moisture stays in the air longer here, especially through summer and shoulder seasons, which means microbial growth inside ductwork is a more persistent threat than in Rockville or Bethesda at lower elevation.
The housing stock compounds this. Montgomery Village, the planned community built from 1966 through the mid-1980s, contains thousands of townhomes and condos still running original fiberglass duct board or early flex duct. That material degrades after 40-plus years, shedding fibers and creating debris buildup that newer duct systems don’t produce. Our crews regularly photograph collapsed or accordion-kinked flex duct runs concealed above drop ceilings in 1970s-era units - a failure mode we rarely see in Germantown’s newer tract builds. Kentlands and Lakelands, the 1990s-2000s planned communities, pack townhomes into tight vertical layouts with narrow duct chases that accumulate debris faster than the open-plan ranches common elsewhere in the county.
Our Main Gaithersburg Services
Most Gaithersburg calls fall into three categories: duct cleaning for aging systems, dryer vent maintenance for townhome stacks, and repair work where original ductwork has failed.
Air Duct Cleaning in Gaithersburg
We clean the full duct network in Montgomery Village and newer communities alike, photographing every run before and after. Original fiberglass duct board requires gentler negative-pressure extraction than metal ductwork to avoid further degradation. Our crews have handled hundreds of Gaithersburg townhomes and know where the access points hide in these floor plans. Air Duct Cleaning in Gaithersburg
Dryer Vent Cleaning in Gaithersburg
Townhome dryer vents in Gaithersburg often run 15-25 feet through shared walls with multiple elbows, creating lint traps that shorter single-family runs don’t match. We clean the full length from appliance to termination, test airflow with a manometer, and document the before-and-after reading. Dryer Vent Cleaning in Gaithersburg
Duct Repair & Sealing in Gaithersburg
When our camera finds collapsed flex duct or separated seams in Montgomery Village units, we repair or replace the damaged section and seal the remaining system with mastic. Every repair includes a written scope and photos of the failure before we close the ceiling. 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.
BeforeAfterHVAC Cleaning in Gaithersburg
HVAC cleaning in Gaithersburg addresses what the city’s climate and housing age do to the mechanical components, not just the ducts. The Piedmont humidity keeps evaporator coils wet longer each cycle, accelerating biofilm growth, while blower assemblies in Montgomery Village systems pull through decades of accumulated debris that newer markets never see. HVAC Cleaning covers the full component roster; in Gaithersburg, we focus on the parts that fail first under these conditions.
Evaporator Coil Cleaning
Signs you need it
Ice buildup on the coil, weak airflow from registers, or musty odor when the AC first cycles on.
What it costs in Gaithersburg
Evaporator coil cleaning in Gaithersburg typically runs $180-$340.
How we do it
We access the coil through the plenum (the main air distribution box), apply foaming cleaner, rinse with low-pressure water, and photograph the fin condition before and after.
Blower Cleaning
Signs you need it
Vibration noise from the air handler, uneven heating or cooling across rooms, or dust puffing from registers at startup.
What it costs in Gaithersburg
Blower assembly cleaning in Gaithersburg typically runs $160-$280.
How we do it
We remove the blower wheel and housing, clean each blade and the motor compartment with compressed air and solvent, balance the assembly, and reinstall with a fresh filter.
What HVAC Cleaning Costs in Gaithersburg
| Item | Typical range in Gaithersburg |
|---|---|
| Evaporator coil cleaning | $180-$340 |
| Blower assembly cleaning | $160-$280 |
| Full HVAC system cleaning (coil + blower + housing) | $380-$620 |
How do I know the coil was actually cleaned?
We photograph the coil face before and after, with a date stamp, and include these images in your job record. Haven Standard Clause 1 requires written documentation of every service performed.
Will cleaning the blower fix uneven temperatures?
It often helps, but uneven temperatures can also signal duct leakage or damper issues. If our camera finds additional problems, we note them in writing before quoting any repair work.
Air Quality & Sanitizing in Gaithersburg
Air quality and sanitizing in Gaithersburg targets the microbial load that Piedmont humidity deposits in aging duct systems. Montgomery Village’s original fiberglass duct board, once it begins breaking down, creates porous surfaces that hold moisture and organic debris longer than smooth metal ductwork. Air Quality & Sanitizing addresses this with treatments designed for the material and conditions we actually find.
Mold Treatment
Signs you need it
Visible growth on register fins, persistent musty odor, or elevated humidity readings inside the duct run.
What it costs in Gaithersburg
Mold treatment in Gaithersburg typically runs $280-$520 depending on affected duct length.
How we do it
We apply an EPA-registered antimicrobial through the full duct network, fog the plenum and return, and run negative-pressure extraction to remove dead spores and residue.
UV Light Installation
Signs you need it
Recurrent mold despite cleaning, or a coil that stays wet and biofilm-coated between service visits.
What it costs in Gaithersburg
UV light installation in Gaithersburg typically runs $340-$580 including the lamp and housing.
How we do it
We mount a Honeywell or Aprilaire UV-C lamp in the supply plenum, wire it to the air handler’s 24-volt circuit, and show you the indicator light confirming operation.
What Air Quality & Sanitizing Costs in Gaithersburg
| Item | Typical range in Gaithersburg |
|---|---|
| Mold treatment (whole system) | $280-$520 |
| UV light installation | $340-$580 |
| Bacteria sanitizing with odor removal | $220-$380 |
Is the antimicrobial safe for fiberglass duct board?
We use products rated for fiberglass and flex duct, not the corrosive treatments designed for metal. The label and SDS are available on request, and we note the product name in your written scope.
How long does UV light last?
Lamp output degrades over 9,000-12,000 hours of operation, typically 12-18 months in a Gaithersburg system. We note the install date in your record and can schedule replacement without a service call.
Brands We Service in Gaithersburg
We stock parts and service equipment from Honeywell, Aprilaire, Abatement Technologies, and Guardsman, with Rotobrush and Nikro cleaning systems on every truck. Most common filter and UV lamp sizes are carried locally, so replacement work doesn’t wait on shipping. See our brands for the full roster.
Pricing for Air Duct Cleaning in Gaithersburg, MD
| Service | Typical range in Gaithersburg |
|---|---|
| Whole-system air duct cleaning | $320-$580 |
| Dryer vent cleaning | $140-$220 |
| Evaporator coil cleaning | $180-$340 |
| Blower assembly cleaning | $160-$280 |
| Full HVAC system cleaning | $380-$620 |
| Duct repair & sealing (per section) | $200-$450 |
| Mold treatment | $280-$520 |
| UV light installation | $340-$580 |
| Bacteria sanitizing with odor removal | $220-$380 |
| Air purifier installation | $280-$640 |
Prices in Gaithersburg run toward the higher end when original Montgomery Village ductwork requires extra access time or when microbial treatment needs reapplication due to material porosity. Every job starts with a written price under Haven Standard Clause 1, agreed before any panel comes off.
Neighborhoods We Serve in Gaithersburg
Our crews cover the full city, from the Montgomery Village townhome courts to the newer vertical layouts in Kentlands and Lakelands. Typical response for scheduled work is within 3-5 business days, with emergency duct repairs prioritized same-day when a system is down.
- Montgomery Village
- Kentlands
- Lakelands
- Quince Orchard
- Washingtonian Center area
Service Area - Cities Near Gaithersburg
We schedule Gaithersburg work alongside calls from Rockville, MD, Germantown, MD, Potomac, MD, and Bethesda, MD. Crews route efficiently across Montgomery County from our Washington, DC coordination office.
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
No permit is required for cleaning or sanitizing existing ductwork in Gaithersburg. If our inspection finds duct repair or replacement is needed, we handle any Montgomery County permit requirements and include the cost in your written scope.
Standard HVAC and duct cleaning appointments are typically available within 3-5 business days. Duct repairs that leave a system inoperable are prioritized for same-day or next-day response.
Most Montgomery Village HOAs require notification for work involving exterior penetrations or shared mechanical spaces, but not for interior duct cleaning. We provide a written scope on request if your association asks for documentation.
Call (240) 771-1508 for a free, written estimate. Every price is delivered before work starts, every duct run is photographed, and every job is backed by our 365-Day Done Right Promise.
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."The before and after photographs of each run are the reason I used them. You cannot argue with what came out of the return."
- Marguerite O."My allergies genuinely improved. They also told me the ducts did not need sealing, which I had been quoted for elsewhere."
- Petra K.