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 Potomac
HVAC cleaning in Potomac costs between $450 and $1,200 for a full system clean on a typical estate home, and between $1,800 and $3,400 when the job includes air handler disassembly, coil treatment, and duct sealing on the multi-zone systems common along River Road and Persimmon Tree Road. We schedule most Potomac jobs within three to five business days, and every job starts with a written price before a single panel comes off. That’s Haven Standard Clause 1, and it’s been the rule at CleanRun Air Duct Cleaning since our first job in 2013. Call (806) 606-6902 to get your system on the schedule.
We know Potomac’s housing stock because we’ve worked inside it for over a decade. The custom colonials off Persimmon Tree Road, the Tudors near Bradley Boulevard, the ranch estates east of Falls Road: these are not tract homes with identical duct layouts. They’re individual builds with individual problems, and the people who own them want documentation, not a sales pitch.
Why CleanRun Air Duct Cleaning Is Potomac’s Preferred HVAC Cleaning Company
Homeowners in Potomac do their research before calling anyone. They read the fine print, they ask about equipment, and they want proof that work was actually done. That’s why our process is built around evidence. Every job ends with a Documented Photo Record: the inside of every duct run, photographed before and after, delivered to you as part of the standard job record. Since 2013, we’ve completed 52,000+ jobs with a written price before work started and a photo record when the crew left. That’s not a marketing claim; it’s how every single job is handled.
Our crews are background-checked, uniformed, and identified by name before arrival, per Haven Standard Clause 3: Verified Crews. We carry professional-grade equipment from Rotobrush, Nikro, and Abatement Technologies, so the work is done with negative-air extraction and agitation tools, not a shop vac and a prayer. Tomas Reyes, who leads our operations, insists on this: if the equipment can’t be verified by the customer before we start, we don’t start. That’s the standard, and it applies on every job in Potomac the same as anywhere else we work.
Dispatch and scheduling for Potomac are coordinated from our Washington, DC office; our crews serve Potomac locally.
Our HVAC Cleaning Services in Potomac
The systems in Potomac estate homes are not like the systems in a 2,000-square-foot Bethesda colonial. They run longer duct runs, push air across multiple zones, and often sit in finished attics or crawlspaces that no one has opened in twenty years. Here’s what we actually do when we clean one of these systems.
Evaporator Coil Cleaning
The evaporator coil sits inside the air handler and does the actual cooling work. In Potomac’s river-valley humidity, coils collect a film of moisture and dust that turns into a biological mat within a single season. On a 5,000-square-foot home near the C&O Canal, a coil cleaning is not a one-hour job; it’s a careful pull-and-clean with coil treatment follow-up. A typical evaporator coil cleaning in Potomac runs $300 to $600 on top of the base duct clean, depending on access and the level of buildup.
Blower Cleaning
The blower wheel and housing collect the finest particulate that slips past the filter. On systems that move air through 30 or 40 duct runs, a dirty blower wheel throws off the entire system’s airflow balance. We pull the blower assembly, clean the wheel and housing, and check the motor’s amp draw before and after. Blower cleaning in Potomac typically adds $250 to $450 to the job.
Condenser Cleaning
The outdoor condenser unit faces Potomac’s pollen season head-on. Homes on wooded lots off River Road and near the canal see heavy spring pollen loading that coats the condenser fins and cuts efficiency. We clean the coils, straighten bent fins, and clear the area around the unit. Condenser cleaning in Potomac runs $200 to $400 for a standard residential unit.
Air Handler Cleaning
This is the service that matters most on Potomac’s older custom builds. The air handler cabinet is where return air drops into the plenum, passes over the coil, and gets pushed into the supply runs. If the cabinet’s internal insulation is degrading, or if the drain pan has been holding water, the air handler is the source of the problem, not the ducts. A full air handler cleaning, including plenum inspection and drain pan service, runs $400 to $800 in Potomac and takes most of a day on the larger multi-zone systems.
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 Potomac
We work on systems from every major manufacturer installed in Potomac homes, including Trane, Carrier, Lennox, Rheem, and York. What matters more than the label is what’s inside the cabinet, and that’s where our equipment roster comes in. We run Rotobrush negative-pressure cleaning systems for source removal, Guardsman antimicrobial coatings for plenum and coil treatment, and Nikro HEPA filtration on jobs where biological growth has been confirmed. These are professional-grade tools you can look up independently before you agree to a price.
Common HVAC Cleaning Problems We See in Potomac Homes
After more than ten years working inside Potomac’s estate homes, these are the failures we find most often. If any of them sound familiar, call (806) 606-6902 and we’ll schedule an inspection.
- Crushed flex duct in finished attics. Homes built between the late 1960s and early 1990s often have original flex duct in finished attics. Over decades, the duct’s internal wire coil fatigues and the run sags or collapses, choking airflow to entire zones. We find this on a significant share of Persimmon Tree Road and Bradley Boulevard properties.
- Mold colonization inside fiberglass linings. Potomac’s river-valley humidity keeps the air inside return plenums damp for months at a time. Original fiberglass-lined plenums absorb that moisture, and once mold sets in, a standard duct cleaning won’t remove it. Coil treatment and plenum sealing are often required.
- Heavy pollen loading in wide-spaced returns. Estate homes use large, widely spaced returns that draw outdoor air through less-than-airtight attic connections. On wooded lots near the C&O Canal and River Road, that means heavy pollen and leaf particulate accumulating in return-air ducts and overwhelming MERV filters between cleanings.
- Disconnected runs buried in finished spaces. We routinely find supply runs that have pulled apart at the takeoff, sending conditioned air into wall cavities and finished attics instead of living spaces. The camera shows the gap. The fix is reconnecting and sealing the run, which is part of what makes a Potomac HVAC cleaning different from a basic vent vacuuming.
Pricing for HVAC Cleaning in Potomac, MD
Here are the numbers, in writing, the way we quote every job. A base HVAC cleaning on a single-zone system in Potomac starts at $450. A two-zone estate home with air handler cleaning, coil treatment, and full duct cleaning typically lands between $1,200 and $2,400. A three-zone custom home with confirmed mold colonization, crushed runs needing repair, and full source removal runs $2,800 to $3,400. The price you get is the price on the invoice, because we write it down before any work starts. Haven Standard Clause 1. No exceptions.
What moves the number is access, not salesmanship. A finished attic with tight clearances takes longer. A crawlspace with standing water takes longer. Three zones take longer than one. We’ll walk the house, show you what the camera sees, and hand you a written scope with a fixed number. If you have a competitor’s quote, bring it. We’ll put our number next to it in writing, for free.
We Also Serve Cities Near Potomac
Our HVAC Cleaning crews cover Potomac and the surrounding Montgomery County communities, including Rockville, Bethesda, Gaithersburg, and Germantown. If you’re outside Potomac proper, we can still get to you quickly, with the same written price and photo record on every job. Learn more about our work in Potomac or call (806) 606-6902 for scheduling.
Serving Potomac, MD - Our Local Coverage Area
We’re based in the Potomac 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 Potomac
Homes from that era in Potomac were built with fiberglass-lined plenums and flex duct, both of which hold moisture. The river-valley humidity around the Potomac River and C&O Canal keeps return-air systems damp for months at a time. Once the fiberglass lining stays wet long enough, mold colonization sets in and a standard cleaning alone won’t resolve it. The fix is coil treatment plus plenum sealing, which we do as part of the job. Call (806) 606-6902 for an exact quote on your system, and we’ll include the camera inspection so you can see what’s actually growing in there.
On a custom colonial of that era near Persimmon Tree Road, expect to find three things in the ductwork: decades of accumulated dust and debris in the supply and return runs, possible crushed or disconnected flex duct in finished attic spaces, and degradation of original fiberglass lining in the return plenum. On a recent job off River Road, we pulled a blower assembly and found the original fiberglass lining had delaminated and was actively shedding into the airstream. We resealed the plenum with a Guardsman coating, then used negative pressure and agitation tools to source-remove the loose debris from every supply and return duct. A post-clean camera inspection confirmed all three zones were clear, and the homeowner said the musty smell that had lingered for years was finally gone. Call (806) 606-6902 and we’ll schedule a camera inspection so you know exactly what your system looks like before you spend a dollar.
Yes, and on Potomac estate systems, this is often the most important part of the job. The air handler houses the blower, the coil, and the return plenum, and it’s where biological growth and lining degradation happen. Cleaning the ducts without cleaning the air handler is like washing the gutters but leaving the downspout clogged. Air handler cleaning in Potomac runs $400 to $800 on top of the base duct clean, and it includes plenum inspection, drain pan service, and camera documentation before and after.
The sustained humidity near the C&O Canal means evaporator coils in Potomac homes collect moisture and dust into a biological film within a single cooling season. Homes closer to the river and canal typically need coil cleaning every two to three years, while homes in drier parts of Montgomery County can go four to five. Coil treatment is the difference between cleaning the coil and actually killing what’s growing on it, and we recommend it on every Potomac job where the camera shows organic buildup. The treatment runs $150 to $300 for most residential systems.
Because the returns on large estate homes are widely spaced and often installed in attics where the connections aren’t airtight. They draw in unfiltered outdoor air carrying pollen, leaf particulate, and fine dust. The filter catches some of it, but the return duct itself fills with material over time. We see this pattern repeatedly on properties off River Road, Bradley Boulevard, and Persimmon Tree Road that went 20 to 30 years without any duct maintenance. A full cleaning restores proper airflow and pressure balance, and the photo record shows you exactly what came out.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning, serving Potomac since 2013.
Call (806) 606-6902 today to schedule your HVAC cleaning in Potomac. We’ll walk the system, show you what the camera sees, and hand you a written price before any work starts.