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-$680 for a whole-system job, with most Montgomery Village-era townhomes falling in the mid-range due to compact duct layouts and original flex ductwork. We dispatch crews from our Washington, DC office and serve Gaithersburg homeowners with the same equipment roster we use across the metro area: Rotobrush, Nikro, and Abatement Technologies systems, all operated under the H.A.V.E.N. Standard. Call (571) 526-0015 for a written estimate before any work starts.
Why Gaithersburg Homes Are Different
Gaithersburg sits in the humid Piedmont transition zone at roughly 500 feet elevation, trapping summer humidity that routinely exceeds 70-80% for weeks at a time. That moisture accelerates mold and biofilm growth inside the flex duct systems common throughout Montgomery Village’s 1970s-1980s townhome inventory, particularly in below-grade return-air runs and attic supplies that experience wide temperature swings between seasons.
The tens of thousands of townhomes and garden-style condominiums in Montgomery Village carry a Gaithersburg mailing address and now face end-of-serviceable-life ductwork. Technicians scoping these systems regularly find original flexible duct partially collapsed or pulled apart at sheet-metal collar connections, turning what homeowners expect to be a cleaning job into a conversation about repair before any cleaning is possible. Kentlands and Lakelands add late-1980s-90s construction with tighter interior chases and low-clearance attic runs that complicate equipment access.
Our Main Gaithersburg Services
Three services account for most of our calls from Gaithersburg homeowners:
Air Duct Cleaning in Gaithersburg
We clean the full duct run from register to plenum, the main distribution box, with negative-pressure extraction and rotary brush agitation on every branch. Montgomery Village’s original flex duct requires gentler brush settings than rigid metal systems, and our crews adjust Rotobrush head speed accordingly. Every job ends with a Documented Photo Record of each run, delivered as a standard deliverable. Air Duct Cleaning in Gaithersburg
Dryer Vent Cleaning in Gaithersburg
Shared-wall townhome construction in Montgomery Village creates longer vent runs with more elbows than single-family homes, increasing lint accumulation and fire risk. We clean the full vent path from dryer to termination with rotary whip and high-velocity air tools, then verify airflow with a manometer reading recorded on the job sheet. Dryer Vent Cleaning in Gaithersburg
Duct Repair & Sealing in Gaithersburg
When our camera shows collapsed flex duct or separated collars in Montgomery Village-era homes, we repair or replace the affected sections with new flexible duct and mechanical fasteners, then seal joints with mastic. Every repair scope is written and priced before work starts under Haven Standard Clause 1. 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 the mold and biofilm that colonize evaporator coils and blower assemblies in the area’s humid Piedmont climate, particularly in Montgomery Village homes where decades of unfiltered return air has coated these components. We clean the full air-handling system, not just the ducts, because contaminated coils reintroduce particles into cleaned ductwork within days. HVAC Cleaning covers our complete approach to system-wide contamination.
Evaporator Coil Cleaning
Signs you need it
Musty odor when the AC first cycles on, reduced airflow from registers, or ice formation on the coil housing visible through the air handler access panel.
What it costs in Gaithersburg
Evaporator coil cleaning in Gaithersburg typically runs $280-$420, with Montgomery Village’s compact air handler locations sometimes requiring additional access time.
How we do it
We apply foaming cleaner to the coil fins, agitate with a soft-bristle brush designed for aluminum fins, rinse with low-pressure water, and photograph the coil before and after through the access panel.
Blower Cleaning
Signs you need it
Vibration or noise from the air handler, uneven airflow between rooms, or visible dust buildup on the blower wheel blades when the filter is removed.
What it costs in Gaithersburg
Blower cleaning in Gaithersburg typically runs $240-$360, with tight Kentlands attic installations sometimes at the higher end due to access constraints.
How we do it
We remove the blower assembly, clean each blade with compressed air and solvent, balance the wheel on a static balancer, and reinstall with fresh hardware torqued to manufacturer spec.
What HVAC Cleaning Costs in Gaithersburg
| Item | Typical range in Gaithersburg |
|---|---|
| Evaporator coil cleaning | $280-$420 |
| Blower cleaning | $240-$360 |
| Full HVAC system cleaning (coil + blower + housing) | $380-$680 |
How do I know my HVAC system was actually cleaned?
Every HVAC cleaning job includes a Documented Photo Record of the coil, blower, and housing interior, delivered to you as a standard deliverable, not an extra. Call (571) 526-0015 to schedule.
Can HVAC cleaning fix mold smell in my Montgomery Village townhome?
Yes, if the odor originates from the coil or blower; persistent smell after cleaning indicates duct-level mold requiring separate treatment. Call (571) 526-0015 and we’ll scope the source before quoting.
Air Quality & Sanitizing in Gaithersburg
Air quality and sanitizing in Gaithersburg targets the mold colonization that humid summers breed inside Montgomery Village’s original flex duct, particularly in below-grade returns where temperature differentials create condensation points. We treat the biological contamination first, then sanitize to prevent recurrence, because cleaning alone leaves active spores that reestablish within weeks. Air Quality & Sanitizing details our full protocol for contaminated systems.
Mold Treatment
Signs you need it
Visible black or green growth at register openings, musty odor that persists after filter changes, or allergy symptoms that worsen when the HVAC cycles on.
What it costs in Gaithersburg
Mold treatment in Gaithersburg typically runs $450-$780 for a whole-system application, with Montgomery Village’s dense duct networks requiring more product than open-basement single-family layouts.
How we do it
We apply an EPA-registered antimicrobial through the full duct run with a fogging system, let it dwell per manufacturer specifications, then extract excess moisture with negative-pressure equipment and photograph treated surfaces.
UV Light Installation
Signs you need it
Recurring mold after professional treatment, chronic allergy symptoms in household members, or a coil that requires cleaning more than once per season.
What it costs in Gaithersburg
UV light installation in Gaithersburg typically runs $380-$620 per lamp, with dual-lamp setups for larger air handlers at the higher end.
How we do it
We mount a Guardsman UV-C lamp in the supply plenum with a sight-glass access port, wire to the blower relay for automatic operation, and verify irradiance with a meter reading recorded on the job sheet.
What Air Quality & Sanitizing Costs in Gaithersburg
| Item | Typical range in Gaithersburg |
|---|---|
| Mold treatment (whole system) | $450-$780 |
| UV light installation (single lamp) | $380-$620 |
| Bacteria sanitizing (whole system) | $320-$520 |
Is mold treatment safe for kids and pets in Gaithersburg homes?
We use EPA-registered antimicrobials with specified re-entry times, typically two to four hours with ventilation; the written scope includes the exact product and dwell time for your records. Call (571) 526-0015 for product-specific documentation.
How long does UV light installation take in a Montgomery Village townhome?
Most installations finish in two to three hours, with compact air handler locations in Montgomery Village sometimes adding access time that we quote upfront under Haven Standard Clause 1. Call (571) 526-0015 for a written estimate.
Brands We Service in Gaithersburg
We stock parts and service equipment from Honeywell, Aprilaire, and Guardsman, with most common filters, UV lamps, and media available on the truck for same-visit replacement. our brands
Pricing for Air Duct Cleaning in Gaithersburg, MD
| Service | Typical range in Gaithersburg |
|---|---|
| Whole-system air duct cleaning | $320-$580 |
| Dryer vent cleaning | $180-$340 |
| Duct repair (per section) | $220-$480 |
| Evaporator coil cleaning | $280-$420 |
| Blower cleaning | $240-$360 |
| Full HVAC system cleaning | $380-$680 |
| Mold treatment (whole system) | $450-$780 |
| UV light installation | $380-$620 |
| Bacteria sanitizing | $320-$520 |
| Odor removal treatment | $280-$480 |
Prices in Gaithersburg run toward the higher end when original Montgomery Village flex duct requires repair before cleaning, or when attic access in Kentlands homes needs additional labor. Every price is written and agreed before work starts, with no per-vent add-ons or post-arrival changes.
Neighborhoods We Serve in Gaithersburg
Our crews cover the full Gaithersburg service area with scheduling coordinated from our Washington, DC office, typically offering next-day availability for standard appointments.
- Montgomery Village
- Kentlands
- Lakelands
- Old Towne Gaithersburg
- Quince Orchard
Service Area - Cities Near Gaithersburg
We serve homeowners throughout the I-270 corridor, including Rockville, MD to the south and Silver Spring, MD to the southeast, with the same written pricing and documented photo record on every job.
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 standard air duct cleaning in Gaithersburg; duct replacement or modification may need Montgomery County permitting, which we handle and include in the written scope when applicable.
Our trucks and equipment comply with standard HOA access rules; we carry proof of insurance and background-check documentation for any HOA office that requests it, under Haven Standard Clause 3: Verified Crews.
We typically schedule standard appointments within one to two business days, with emergency mold treatments prioritized; all calls are answered by a live person who can confirm 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 Gaithersburg Customers Say
"Thorough job on the ducts and the dryer vent. Left the house clean and the paperwork was clear."
- Rafael I."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."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.