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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AfterFast, Reliable HVAC Cleaning Across Gaithersburg
HVAC cleaning in Gaithersburg costs between $285 and $640 for a full system clean, and for most townhomes and condos, our crew completes the work in one visit. If you own a home in Montgomery Village, Kentlands, Lakelands, or anywhere else in the 20877, 20878, or 20879 ZIP codes, you’re dealing with ductwork that has spent decades moving air through this city’s humid Piedmont climate. That means condensation, debris accumulation, and in many older units, significant contamination inside the runs themselves.
Call (806) 606-6902 for a written price before any work starts. CleanRun Air Duct Cleaning has served the Gaithersburg area through our HVAC Cleaning team, and every job includes a documented photo record of your ducts before and after. We don’t ask you to take our word for it. We show you what was in there.
Why CleanRun Air Duct Cleaning Is Gaithersburg’s Preferred HVAC Cleaning Company
Gaithersburg homeowners call us for one reason more than any other: we put the price in writing before a single panel comes off. Haven Standard Clause 1 says exactly that, on every job, no exceptions. In a market like Gaithersburg where townhome rows in Montgomery Village share duct chases and HOA coordination is often necessary, knowing your final number upfront matters. You can’t schedule a job through a management company with a ballpark figure.
Our technicians are background-checked and uniformed under Haven Standard Clause 3, and Tomas Reyes, our owner, has built the company since 2013 on a simple principle: evidence over claims. Every technician carries commercial equipment from trade-recognized brands, and every job ends with a photo record of each duct run. Since our founding, we’ve served 52,000+ homes with the same written-price, documented-results approach. Service in Gaithersburg is coordinated through our Washington, DC office, with crews dispatched to the city daily.
We know this city’s housing stock. When a customer on Wightman Road calls about musty air in a late-1970s garden unit, we know to check the shared attic chase before anything else. When someone in Kentlands needs coil cleaning in a 1990s system, we bring a different inspection checklist. Local knowledge isn’t a tagline. It’s what gets the work done correctly the first time.
Our HVAC Cleaning Services in Gaithersburg
Evaporator Coil Cleaning
The evaporator coil is the component that actually cools the air passing over it, and in Gaithersburg’s humid summers, it collects condensation continuously. In Montgomery Village’s original flex-duct systems, undersized returns pull dust across the coil face, creating a mat of organic material that reduces efficiency and feeds microbial growth. A typical evaporator coil cleaning in Gaithersburg runs $180 to $310 when bundled with a full system clean, and we photograph the coil before and after so you can see exactly what was removed.
Air Handler Cleaning
Air handler cleaning in Gaithersburg runs $220 to $360 for most townhome and condo units. We do more than vacuum the blower compartment. We remove the blower wheel when access permits, clean the housing, inspect the cabinet for moisture intrusion, and check that the condensate pan drains correctly. In garden-style Montgomery Village buildings, the air handler often sits in a semi-conditioned closet or mechanical room that rarely sees maintenance attention and we regularly find dust accumulations of a quarter-inch or more on the blower itself.
Blower Cleaning
The blower wheel is the fan that pushes air through your ducts, and it’s frequently overlooked because it’s out of sight. But a coated blower wheel moves less air and forces your system to run longer for the same setpoint. Blower cleaning in Gaithersburg typically runs $150 to $240 as an add-on during a full HVAC cleaning. We use compressed air and HEPA-filtered capture to remove built-up dust without spreading it through your home’s air, a method we’ve standardized over more than a decade of Duct Repair & Cleaning work across the metro area.
Condenser Cleaning
Your condenser is the outdoor unit, and in Gaithersburg it survives the same freeze-thaw cycles that stress everything else in this climate. Cottonwood, maple seed, and construction debris from the constant renovation activity across Montgomery County collect in the coil fins. A condenser cleaning in Gaithersburg runs $130 to $200 for the exterior coil, including debris removal, fin straightening where practical, and a check of the refrigerant lines for visible wear. We don’t recharge refrigerant as part of standard cleaning, but we’ll document anything we see that warrants a licensed HVAC contractor’s attention.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
BeforeAfterTrusted Brands We Service in Gaithersburg
Our crews work on systems from Honeywell, Aprilaire, and Guardsman, and we maintain working familiarity with the filtration and air-handling designs these brands are known for. If your Gaithersburg home has a Honeywell media cabinet at the air handler or an Aprilaire whole-home dehumidifier tied into the supply side, our technicians know how to clean around these components without disturbing their calibration. For older Montgomery Village systems with original or early-generation Honeywell controls, we also document any visible control wiring concerns during the cleaning and note them in your photo record.
Common HVAC Cleaning Problems We See in Gaithersburg Homes
- Shared duct contamination in Montgomery Village townhome rows. The original flex-duct trunk lines in many 1970s buildings run through semi-conditioned attic chases spanning multiple units. When one unit’s section holds mold or accumulated debris, airflow and air quality in adjoining homes suffer. Cleaning one unit without addressing the shared trunk often means the problem returns within months.
- Condensation-driven mold in sealed duct runs. Gaithersburg sits roughly 500 feet above sea level in the Piedmont, with higher humidity and more freeze-thaw cycles than D.C. proper. During extended summer cooling seasons, condensation forms inside improperly sealed flex-duct joints and creates a mold-amplification pathway that makes air duct cleaning a preventive health measure, not just maintenance.
- Deteriorating duct tape joints in original galvanized runs. In 1980s townhomes with original galvanized ducts, the adhesive on early duct-tape products fails over decades, leaving joints that leak conditioned air. The camera before a cleaning often shows a joint separated enough to pull in attic dust with every cycle. Cleaning alone won’t fix it. We document it and provide a sealed-joint recommendation.
- Blowback from brush-only agitation methods. Older flex-duct runs in Montgomery Village tend to have minimal interior lining and brittle connections. Using a rotating brush without negative pressure to contain the debris can knock material loose and send it out through the registers, leaving the home dustier than before. Our crews use negative-pressure extraction with Rotobrush agitation tools, which captures airborne particles at the source instead of recirculating them.
Pricing for HVAC Cleaning in Gaithersburg, MD
A full HVAC cleaning in Gaithersburg runs $285 to $640 for most single-family homes and townhomes up to 2,500 square feet. Condos and garden units typically fall between $260 and $480. Evaporator coil cleaning adds $180 to $310 when bundled. Blower cleaning adds $150 to $240. Condenser cleaning runs $130 to $200. These are whole-system prices agreed in writing before work starts, under Haven Standard Clause 1. We don’t quote per vent and we don’t run bait coupons. Every job includes the documented photo record at no additional cost.
If you bring a written estimate from any other company operating in Gaithersburg, we’ll put our own number next to it, in writing, at no charge. That’s our Free Second Opinion policy, and it applies across Montgomery County.
We Also Serve Cities Near Gaithersburg
Our HVAC Cleaning in Gaithersburg crews also cover Montgomery Village, Rockville, Germantown, and Olney, with the same written pricing and photo-documented results. If you’re in any of these nearby communities and need a second opinion on an existing estimate, we’ll come out and put our number in writing.
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 - HVAC Cleaning in Gaithersburg
In most Montgomery Village townhome rows, the HOA is responsible for the shared structural chase and any duct trunk that serves multiple units, while the homeowner is responsible for the duct branches exclusive to their unit. The exact split is defined in each association’s governing documents, often in a responsibilities matrix. Our crews have worked directly with Montgomery Village HOAs and management companies to coordinate access, split scopes, and ensure the full shared trunk gets cleaned rather than just one homeowner’s section. Call (806) 606-6902 for a written scope that you can present to your board or property manager.
Gaithersburg’s elevation and Piedmont climate produce higher shoulder-season humidity and longer summer cooling cycles than areas closer to the Potomac. In older flex-duct systems with deteriorating joints and minimal lining, condensation forms inside the duct during cooling cycles, and that moisture binds with dust and debris to create an active mold growth environment. The photo record from a Montgomery Village job in this condition typically shows darkened lining, water staining at joints, and visible microbial growth in the first few feet off the trunk. Cleaning removes the organic material that mold feeds on, but we also document any structural issues such as separated joints or failed seals that would simply recollect moisture after we leave.
Yes. Our technicians are trained to work in the tight mechanical closets common to Gaithersburg condos and garden apartments. We typically need roughly 36 inches of working clearance at the air handler, but we carry low-profile equipment and can adapt to tighter configurations. If your building’s mechanical room requires key access or coordination with building management, we’ll confirm those details before the scheduled date. Written pricing is provided before any work starts, regardless of access complexity.
We do. Dryer vent runs that pass through shared floor-ceiling cavities are common in Montgomery Village’s stacked garden buildings. These runs often extend 20 to 40 feet with multiple elbows and collect lint at every directional change, creating both a fire hazard and a restriction that forces the dryer to work harder. If the vent run passes through HOA-governed structure, we’ll help you determine which section is yours and which is the association’s, and we’ll provide photographic documentation of the full run before and after cleaning.
We follow NADCA’s ACR 2021 standard for the cleaning of HVAC systems, which specifies source-removal methods and post-cleaning verification. For a 1980s Gaithersburg townhome with original galvanized ducts, that means accessing each trunk line and branch, agitating settled debris with professional tools, then extracting it under negative pressure so it’s removed from the home entirely rather than recirculated. We photograph every section post-cleaning as part of your documented record. If you’d like to review our process in detail, call (806) 606-6902 and we’ll walk you through it.
Ready for a written price? Call (806) 606-6902 and we’ll schedule your inspection. Every estimate is free, in writing, and comes with a documented photo record of what we find, whether you hire us or not.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning, serving Gaithersburg since we opened our doors in 2013.