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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Before
AfterAir Duct Cleaning in Potomac, MD
Dryer vent cleaning in Potomac handles a specific problem: the large estate colonials and split-levels along River Road and Persimmon Tree Road were built with long vent runs that collect lint faster than shorter suburban runs, and the heavy tree canopy keeps humidity high enough to mat that lint inside the pipe. A clogged dryer vent in one of these homes means longer dry cycles, a hot laundry room, and a real fire risk. Call CleanRun at (806) 606-6902 for a written price before any work begins.
Why Potomac Homes Are Different
Potomac’s housing stock is dominated by custom and semi-custom colonials, Tudors, and ranch-style estate homes built mostly between the late 1960s and the early 1990s. Many exceed 6,000 square feet and run on multiple HVAC systems with original fiberglass-lined or flex ductwork in finished attics and crawlspaces. Those materials degrade over decades, shedding fibers into the airstream and holding onto whatever the blower pushes through.
The bigger issue is the microclimate. Potomac sits in a humid river valley. The Potomac River and the dense tree canopy on large residential lots trap moisture and suppress airflow, so outdoor humidity runs measurably higher than in more open Montgomery County suburbs. That sustained summer humidity seeps into return-air systems and accelerates biological growth inside duct linings. In practice, a 6,000-square-foot Potomac colonial that has never had its ducts cleaned will often show more mold, more fiberglass degradation, and more pollen loading than a comparably aged home in Bethesda or Rockville, simply because the ducts are longer, older, and wetter. Homes near the C&O Canal and River Road corridor also pull heavy pollen and leaf particulate through large, widely spaced returns that draw outdoor air through less-than-airtight attic connections. That combination means duct cleaning here is not routine maintenance; it is usually a remediation job.
Our Main Potomac Services
Two services account for most of the calls we take from Potomac homeowners: full air duct cleaning and HVAC cleaning. Both jobs run differently here because the systems are large, multi-zone, and often original to the house.
Air Duct Cleaning in Potomac
Full duct cleaning in Potomac means cleaning every run in a system that may serve 6,000 to 10,000 square feet across two or three zones. The camera work matters more here than in smaller homes, because the runs are long, there are more elbows, and debris collects in places a visual inspection from the register cannot reach. We photograph inside each run before we start and again when we finish, then hand you the photo record as a standard deliverable. Air Duct Cleaning in Potomac covers the full process, the equipment we use, and what a written price looks like for a home this size.
HVAC Cleaning in Potomac
HVAC cleaning on a Potomac estate home typically includes the evaporator coil, blower assembly, drain pan, and the plenum. On older systems with original fiberglass linings, we check the liner condition before starting, because cleaning a deteriorated liner does more harm than good. In some Potomac homes, the coil accumulates enough biological growth during a single humid summer that airflow drops measurably by September. HVAC Cleaning in Potomac explains the full scope and what we document when we finish.
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.
BeforeAfterDryer Vent Cleaning in Potomac
Dryer vent cleaning in Potomac is a fire-prevention job as much as a performance job. Vents on 1980s and 1990s estate homes often run 18 to 30 feet from the laundry room to an exterior wall, with two or three elbows along the way, and the humid microclimate mats lint against the pipe walls instead of letting it blow through. That combination produces exactly the conditions the National Fire Protection Association warns about: long runs, elbows, and compacted lint. We also see a lot of original vents that were never upsized when homeowners replaced older dryers with higher-capacity units. This service is part of our standard Dryer Vent Cleaning program.
Vent Cleaning
Signs you need it
Clothes take two or three cycles to dry, the dryer housing gets hot during a cycle, or the exterior vent flap barely opens when the dryer runs.
What it costs in Potomac
Expect $140 to $240 for a straight-run vent under 15 feet, and $190 to $340 when the run is 20 to 35 feet with multiple elbows.
How we do it
We run a rotating brush through the vent from the dryer side while a negative-pressure extractor pulls loosened lint out the exterior termination, then photograph both ends.
Lint Removal
Signs you need it
The vent is fully or mostly blocked, the dryer shuts off mid-cycle on a high-limit trip, or you can pull visible wads of lint from behind the dryer.
What it costs in Potomac
This runs $170 to $310, depending on the length of the run and how compacted the blockage has become.
How we do it
We break up the compacted lint with an auger head, clear the full run, verify airflow at the exterior termination with a vane anemometer, and document before and after.
Bird Guard Installation
Signs you need it
You hear birds or scratching near the vent termination, see nesting material around the exterior opening, or the flap is jammed open.
What it costs in Potomac
Bird guard installation in Potomac costs $95 to $180, including the guard, fasteners, and sealing of the termination.
How we do it
We remove any nesting material, install a galvanized or powder-coated guard over the termination, and confirm airflow before we leave.
What Dryer Vent Cleaning Costs in Potomac
| Item | Typical range in Potomac |
|---|---|
| Vent cleaning, straight run under 15 ft | $140 - $240 |
| Vent cleaning, longer run with elbows | $190 - $340 |
| Lint removal, partially or fully blocked | $170 - $310 |
| Bird guard installation | $95 - $180 |
How often should a dryer vent be cleaned in Potomac?
Once a year for most Potomac homes. Long runs, elbows, and the humid microclimate load vents faster here than in drier parts of the county, so annual cleaning is a reasonable floor. Call (806) 606-6902 for a written price.
Can a clogged dryer vent damage anything else?
Yes. Beyond the fire risk, a restricted vent pushes moisture back into the house, raises indoor humidity, and can promote mold growth in the laundry area. Call (806) 606-6902 to schedule an inspection.
Duct Repair & Sealing in Potomac
Duct repair and sealing in Potomac is often the difference between a cleaning job that holds up and one that does not. Homes built in the 1970s and 1980s along River Road and Persimmon Tree Road are now at the age where flex duct sags, metal seams pull apart, and fiberglass linings start to shed. When the ducts are in finished attics or crawlspaces, hot humid air and moisture work against every connection year-round. Our Duct Repair & Sealing service covers the full range.
Duct Sealing
Signs you need it
Some rooms never reach the thermostat setting, supply registers feel weak, or you feel warm air in the chase or closet where the ducts pass.
What it costs in Potomac
Whole-system sealing typically runs $480 to $1,200, depending on the number of runs and how accessible the ductwork is.
How we do it
We seal accessible seams and connections with mastic or aluminum tape, then re-check static pressure to confirm the system moves air as designed.
Flex Duct Repair
Signs you need it
Flex runs are kinked, sagging, crushed by stored items, or the inner liner has torn and exposed insulation to the airstream.
What it costs in Potomac
Replacing a damaged flex run costs $180 to $380 per run, including removal and haul-away of the old section.
How we do it
We cut out the damaged section, install the correct-diameter flex run, stretch it, support it with straps, and seal both connections with mastic.
What Duct Repair & Sealing Costs in Potomac
| Item | Typical range in Potomac |
|---|---|
| Whole-system duct sealing | $480 - $1,200 |
| Flex duct replacement, per run | $180 - $380 |
| Duct insulation wrap, per section | $120 - $300 |
Do I need duct sealing before or after cleaning?
Sealing comes after cleaning. You want debris out and leaks closed, in that order, otherwise you pay to clean air that will immediately pull dust back in through the gaps. Call (806) 606-6902 to get a written scope.
Will sealing change how my system sounds?
Sometimes. Closing leaks raises static pressure, and if the system was under-ducted, the whoosh or whistle at registers may become more noticeable. We check static pressure after sealing and flag this before you commit to a repair.
Air Quality & Sanitizing in Potomac
Air quality and sanitizing work in Potomac is driven by the same river-valley humidity that loads these duct systems with biological growth. On heavily wooded lots near the C&O Canal and River Road, pollen and leaf particulate enter through return-air connections in attic installations, and the moisture that comes with them settles into duct linings and the coil. The result is odor, respiratory irritation, and visible microbial growth in places most homeowners never look. Air Quality & Sanitizing covers the full scope of what we do.
Mold Treatment
Signs you need it
You smell a musty or sour odor from registers when the system runs, or the camera shows visible colonization on the duct lining or coil.
What it costs in Potomac
Mold treatment for a duct system runs $500 to $1,500, depending on the size of the system and the extent of the colonization.
How we do it
We apply an EPA-registered antimicrobial to the affected surfaces with a fogger, then run the blower to distribute it through the return, supply, and coil.
UV Light Installation
Signs you need it
You have recurring coil growth, odor returns within months of cleaning, or someone in the home has a diagnosed mold sensitivity.
What it costs in Potomac
UV light installation costs $450 to $900 per system, including the lamp, mounting, wiring, and a written warranty on the lamp.
How we do it
We mount the UV lamp to the supply plenum directed at the coil, hardwire it so the lamp runs only when the blower runs, and photograph the installation.
What Air Quality & Sanitizing Costs in Potomac
| Item | Typical range in Potomac |
|---|---|
| Whole-system antimicrobial treatment | $500 - $1,500 |
| Odor removal, per system | $300 - $700 |
| UV light installation, per system | $450 - $900 |
How do I know the sanitizing worked?
We photograph every treated surface before and after, and you receive a written record of the antimicrobial used, the coverage area, and the application date. You verify the work from the photo record, not from a technician’s word.
Is mold treatment safe for kids and pets?
The EPA-registered products we use are labeled for occupied spaces when applied as directed, and we advise occupants to stay out of the home for one to two hours after treatment while the system ventilates. Call (806) 606-6902 for product-specific documentation before you book.
Brands We Service in Potomac
Our crews work with professional-grade equipment from Rotobrush and Nikro for extraction, and we install Honeywell and Guardsman air quality components. We stock common parts locally so repairs on these brands do not wait on freight. See our brands for the full roster.
Pricing for Air Duct Cleaning in Potomac, MD
| Service | Typical range in Potomac |
|---|---|
| Dryer vent cleaning, straight run under 15 ft | $140 - $240 |
| Dryer vent cleaning, longer run with elbows | $190 - $340 |
| Lint removal, partially or fully blocked | $170 - $310 |
| Bird guard installation | $95 - $180 |
| Whole-system duct sealing | $480 - $1,200 |
| Flex duct replacement, per run | $180 - $380 |
| Duct insulation wrap, per section | $120 - $300 |
| Whole-system antimicrobial treatment | $500 - $1,500 |
| Odor removal, per system | $300 - $700 |
| UV light installation, per system | $450 - $900 |
Prices in Potomac run toward the higher end when the home is a large estate property with multiple systems, when ducts are in finished crawlspaces or attics that slow access, and when the original ductwork has not been serviced in decades. Every job starts with a written price, delivered before any work starts, so the figure above is what you approve, not an opening bid.
Neighborhoods We Serve in Potomac
We serve the full Potomac area, including the estate corridors along River Road and Persimmon Tree Road, the wooded lots near the C&O Canal, and the surrounding subdivisions. For most Potomac jobs, we can schedule within three to five business days.
- Avenel
- Bradley Farms
- Fallsreach
- Potomac Falls
- River Falls
Service Area - Cities Near Potomac
Beyond Potomac, our crews also cover Rockville, MD, Bethesda, MD, and Gaithersburg, MD, plus Germantown, TN. Dispatch and scheduling are coordinated from our Washington, DC office, and crews serve Potomac locally.
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 About Air Duct Cleaning in Potomac
Most Potomac jobs are scheduled within three to five business days. Larger estate homes with multiple systems may need a full day, so we confirm the scope in writing before the crew arrives. Call (806) 606-6902 to check availability.
Most Potomac HOAs do not restrict interior duct or dryer vent work. Exterior vent terminations and roof access can require approval in some communities, so if the job involves roof or exterior work, we recommend confirming with your association first.
For cleaning, yes, we need access to the home and the system. For sealing and sanitizing, we also need the system running, so someone must be present to approve the written scope before work starts.
Call CleanRun at (806) 606-6902 for a written price on air duct cleaning, dryer vent cleaning, duct repair, or air quality work in Potomac. Every job is quoted in writing before any work begins, and you receive a documented photo record of every duct run when we finish.
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 Potomac Customers Say
"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."The dryer vent was almost completely blocked with lint. They showed me the photograph and I understood immediately why the dryer had been running twice."
- Lucia M.