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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After
Before
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Before
AfterAir Duct Cleaning in North Potomac, MD
Dryer vent cleaning in North Potomac runs $129 to $229 for a standard single-vent home, and most jobs take 60 to 90 minutes. The big 1980s and 1990s colonials here often route dryer exhaust through 20 to 30 feet of rigid or flex duct before it reaches an exterior wall, which means lint accumulates faster and packs tighter than in newer, shorter-vent construction. Call (806) 606-6902 for a written price before any work begins.
Why North Potomac Homes Are Different
North Potomac’s housing stock was built largely between 1985 and 2005, and those homes came with big footprints: center-hall colonials and transitional styles running 3,000 to 5,000 square feet or more. The flex-duct trunk-and-branch systems installed during that era now carry 25 to 35 years of service. Many of those original runs still connect finished basement zones and bonus rooms through 30 to 40 feet of duct routed through unconditioned attic space, where summer heat indices above 100°F drive condensation against the liner. The mature oak and maple canopy around the Seneca Creek corridor drops a heavy pollen load each spring, and that biological material settles into long duct runs that were never designed for easy access. North Potomac is not a quick-clean market. It is a scope-it-first market.
We see a pattern here that defines the work: production-builder duct systems with improperly sealed joints that passed original rough inspection and were never revisited. Those joints quietly pull attic air, insulation particles, and humidity for decades. By the time a homeowner notices dust at the registers or an odor that does not clear, the inside of the ductwork tells a different story than the floor plan suggests.
Our Main North Potomac Services
Most North Potomac homeowners call us first about two things: the state of the air ducts themselves and the accumulated biological load inside the HVAC system. Both are covered in depth on their own pages.
Air Duct Cleaning in North Potomac
Full air duct cleaning in North Potomac means removing years of compacted dust, pollen, and construction debris from long flex-duct runs that snake through oversized colonials. The work here frequently involves scoping runs that were never cleaned after the original build, and the camera often shows debris compaction at elbow turns where airflow has been restricted for a long time. Every run is photographed before and after, and you receive that record as a standard deliverable. Full details, including pricing and what the camera shows, are on the Air Duct Cleaning in North Potomac page.
HVAC Cleaning in North Potomac
HVAC cleaning addresses the evaporator coil, blower assembly, drain pan, and plenum in addition to the duct runs. In North Potomac’s humid summers, a fouled coil and a clogged drain line create the exact conditions for biological growth and reduced cooling capacity. Homes with multi-zone systems, especially those with finished basement zones, need more scoping time because access points are often distant from the equipment. See the HVAC Cleaning in North Potomac page for a full breakdown of scope and pricing.
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 North Potomac
Dryer vent cleaning in North Potomac typically costs between $129 and $229, and the job changes when the vent run stretches 20 to 30 feet through a finished basement ceiling or an exterior wall on the far side of a large colonial. Those long runs, common in 1985-to-2005 construction, collect lint at every joint and elbow, and the dense tree canopy adds fine particulate that passes through the dryer’s lint screen. A restricted vent is a fire risk first and an efficiency problem second. We photograph the inside of the vent before and after, and the written price is set before we begin. If you want to understand the full scope of Dryer Vent Cleaning, the service hub explains our process in detail.
Dryer Vent Inspection
Signs you need it
Clothes take longer than 45 minutes to dry, the dryer exterior runs hot to the touch, or you notice a burning odor when the dryer is running.
What it costs in North Potomac
A standalone dryer vent inspection with camera scoping runs $79 to $119 in North Potomac, and that fee is credited toward cleaning if we do the work.
How we do it
We disconnect the dryer, run a camera through the full vent length, measure airflow at the exterior termination, and document every finding in photographs.
Vent Cleaning
Signs you need it
The exterior vent hood flap does not open fully during a dryer cycle, or visible lint is accumulating around the termination point outside the house.
What it costs in North Potomac
Standard dryer vent cleaning runs $129 to $229 depending on vent length, number of elbows, and roof versus wall termination in North Potomac.
How we do it
We use a rotary brush system with HEPA-filtered negative air to pull loosened lint backward out of the vent rather than pushing it into the wall cavity.
Lint Removal
Signs you need it
You find a dense, felted layer of lint inside the lint screen housing or the dryer repeatedly trips its high-limit thermal switch.
What it costs in North Potomac
Targeted lint removal for a severely packed vent adds $40 to $70 to the base vent cleaning price in North Potomac.
How we do it
For heavily compacted lint, we use a stiff-bristle auger in short passes, then re-scope to confirm the bore diameter is fully restored before the final airflow test.
Vent Rerouting
Signs you need it
Your current dryer vent path is longer than 25 feet, exceeds the dryer manufacturer’s maximum equivalent length, or terminates in a soffit or crawlspace rather than an exterior wall.
What it costs in North Potomac
Vent rerouting in North Potomac runs $280 to $475 depending on whether the new path requires opening drywall or running rigid duct through a joist bay.
How we do it
We map the shortest compliant path, replace flex with smooth rigid duct where possible, seal every joint with mastic, and re-verify airflow at the new termination.
Bird Guard Installation
Signs you need it
You hear birds or scratching sounds near the exterior vent hood, or the existing flapper is propped open by nesting material.
What it costs in North Potomac
A galvanized steel bird guard with a locking collar costs $45 to $85 installed in North Potomac, depending on roof access requirements.
How we do it
We remove any existing nesting material, sanitize the termination point, and mount a fixed-mesh guard that allows full airflow while blocking entry.
What Dryer Vent Cleaning Costs in North Potomac
| Item | Typical range in North Potomac |
|---|---|
| Dryer vent inspection with camera scope | $79 - $119 |
| Standard dryer vent cleaning | $129 - $229 |
| Severe lint pack removal add-on | $40 - $70 |
Long runs through finished basement ceilings push pricing toward the upper end because access and scope time increase. The written price you receive covers the complete scope, not a teaser that grows once the equipment is set up.
How do I know my dryer vent was actually cleaned in North Potomac?
You’ll receive a before-and-after photo record of the inside of the vent run, plus a final airflow reading at the exterior termination. The photos are taken with a camera scope and included as a standard deliverable, not an upsell.
Why does my North Potomac dryer vent clog faster than my previous home’s did?
Longer vent runs through unconditioned spaces cool the exhaust air more, causing lint to condense and adhere at joints and elbows. Add the heavy spring pollen from the Seneca Creek canopy, and North Potomac vents pack faster than shorter runs in newer construction. Call (806) 606-6902 to schedule a scoped cleaning.
Duct Repair & Sealing in North Potomac
Duct repair and sealing in North Potomac addresses the 25-to-35-year-old flex-duct runs and unsealed joints that leak conditioned air into attics and wall cavities. Homes built between 1985 and 2005 here often have joints that were never sealed properly after rough inspection, and the long runs to bonus rooms and finished basements make every leak measurably more expensive to operate. We find the leaks with scoping and pressure testing, then seal them with mastic or replace degraded flex sections. The pricing is written and fixed before work starts. Our Duct Repair & Sealing hub outlines the full process and standards.
Duct Sealing
Signs you need it
Rooms at the far end of the house never reach the thermostat setpoint, or you can feel warm or cool air moving through an unfinished basement even when the registers are closed.
What it costs in North Potomac
Whole-system duct sealing in North Potomac runs $450 to $900 depending on the number of accessible joints and the length of the duct network.
How we do it
We locate leaks with a blower-door assisted pressure test or thermal imaging, then apply fiber-reinforced mastic at every leaking joint and re-test to confirm the reduction.
Flex Duct Repair
Signs you need it
The duct liner has visible tears or collapse at connection points, or the camera shows a sag or kink that restricts airflow inside the run.
What it costs in North Potomac
Replacing a degraded flex duct section in North Potomac runs $180 to $380 per run, including material, support strapping, and sealed connections.
How we do it
We cut out the damaged section, install a new R-6 or R-8 flex duct replacement, suspend it with proper strapping, and seal both ends with mastic and UL-listed tape.
Metal Duct Repair
Signs you need it
You have separated or rusted joints in exposed metal trunk lines, or a register has pulled loose from the boot and is leaking into the floor cavity.
What it costs in North Potomac
Repairing or reinforcing a metal duct section in North Potomac runs $220 to $520, depending on access and whether the section must be fabricated to match.
How we do it
We remove the failed section, fabricate or source a matching replacement, secure it with mechanical fasteners, and seal the perimeter with mastic.
Duct Insulation
Signs you need it
Ducts routed through unconditioned attic spaces sweat during North Potomac’s humid summers, or the existing insulation wrap has torn and fallen away from the liner.
What it costs in North Potomac
Insulating exposed duct runs in North Potomac attics runs $150 to $400 per run, based on run length and whether the existing wrap must be removed first.
How we do it
We strip degraded wrap, inspect the duct liner, and install new R-8 fiberglass wrap with a reinforced vapor barrier, secured at every seam and junction.
Mastic Sealant
Signs you need it
Existing tape at duct joints has dried, cracked, or peeled away, or previous sealing work used duct tape rather than code-appropriate mastic.
What it costs in North Potomac
Sealing a single accessible duct connection with mastic in North Potomac runs $45 to $95 per joint, including surface preparation and inspection.
How we do it
We clean the joint surface to remove old adhesive and debris, apply fiber-reinforced mastic with a brush to fully bridge the gap, and allow proper cure time before re-testing.
What Duct Repair & Sealing Costs in North Potomac
| Item | Typical range in North Potomac |
|---|---|
| Whole-system duct sealing | $450 - $900 |
| Flex duct section replacement | $180 - $380 per run |
| Mastic sealing per joint | $45 - $95 |
Costs in North Potomac skew toward the middle and upper end of these ranges because of long runs, finished-basement access constraints, and the number of joints in multi-zone systems. The written price you receive is the price you pay.
Why is duct sealing important in North Potomac specifically?
North Potomac’s oversized multi-zone homes have long trunk-and-branch runs with many joints. Each leaking joint pulls attic air, humidity, and particulate into the system during hot, humid summers, which raises energy costs and degrades indoor air quality.
Can you seal ducts without tearing out finished ceilings in North Potomac?
In most cases, yes. Accessible joints in attics, basements, and crawlspaces can be sealed from the outside using mastic. Finished-ceiling runs may require strategic access points, but we scope first and tell you exactly what is reachable before any cutting happens. Call (806) 606-6902 for a written assessment.
Air Quality & Sanitizing in North Potomac
Air quality and sanitizing in North Potomac deals with the biological material that accumulates inside aging duct systems: pollen from the Seneca Creek canopy, mold spores fostered by attic condensation, and bacteria that settle into dust pack in long flex runs. Homes built from 1985 to 2005 often have ductwork that has never been sanitized, and the hot-humid summers serve as an incubator once moisture gets inside the liner. We treat the duct network after mechanical cleaning, using EPA-registered antimicrobial products applied through a fogging or spray system, then document everything. The Air Quality & Sanitizing hub has the full technical breakdown.
Mold Treatment
Signs you need it
You see visible mold growth on registers, supply boots, or inside the duct liner as shown by camera scope, or you smell a persistent musty odor that increases when the blower runs.
What it costs in North Potomac
Mold treatment for a North Potomac duct system runs $450 to $900, based on affected square footage of liner surface and the number of accessible runs.
How we do it
We mechanically remove the contaminated surface layer first, then apply an EPA-registered antimicrobial fog to the full duct network and re-scope to verify coverage.
Bacteria Sanitizing
Signs you need it
Someone in the home has recurring respiratory irritation, or the HVAC system has not been sanitized after a pest issue, water event, or years of pet dander accumulation.
What it costs in North Potomac
Bacteria sanitizing for the full duct network in North Potomac runs $350 to $650, with the final price set by total system square footage and access complexity.
How we do it
After mechanical extraction, we fog the supply and return plenums, trunk lines, and branch runs with a hospital-grade, EPA-registered antimicrobial product.
Odor Removal
Signs you need it
Odors from previous occupants, pets, cooking, or smoking persist after the ducts are clean, or the smell returns each time the system cycles on.
What it costs in North Potomac
Odor removal paired with duct cleaning runs $150 to $350 in North Potomac, depending on whether the source is surface-bound or embedded in the liner.
How we do it
We apply an odor-neutralizing agent designed for porous surfaces after mechanical cleaning, with a dwell time matched to the specific contaminant type.
UV Light Installation
Signs you need it
The evaporator coil shows biofilm growth despite cleaning, or the home needs continuous biological control because of humid conditions or occupant sensitivity.
What it costs in North Potomac
Installing a UV-C light at the coil or in the return plenum in North Potomac runs $650 to $1,150, depending on unit placement and electrical access.
How we do it
We mount a UV-C lamp sized to the plenum or coil surface, using line-of-sight placement to maximize exposure, and verify operation with a radiometer.
Air Purifier Install
Signs you need it
Household members have persistent allergy symptoms during North Potomac’s spring pollen season, or the current filtration setup cannot capture fine particulate.
What it costs in North Potomac
Installing a whole-home air purifier in North Potomac runs $600 to $1,200, based on the unit brand, placement, and whether electrical work is required.
How we do it
We select a unit matched to your system’s airflow capacity, install it at the return plenum or supply side per manufacturer specification, and integrate it with existing controls.
What Air Quality & Sanitizing Costs in North Potomac
| Item | Typical range in North Potomac |
|---|---|
| Mold treatment per system | $450 - $900 |
| Bacteria sanitizing per system | $350 - $650 |
| UV light installation | $650 - $1,150 |
Two factors push air quality pricing up in North Potomac: long multi-zone duct networks that require more product and longer dwell times, and attic-routed runs that are awkward to access and treat. Every job receives a written scope before work starts, so there are no variable surprises.
Does sanitizing actually work if the ducts are still dirty in North Potomac?
No. Sanitizing follows mechanical cleaning. The biological material must be physically removed first, otherwise the antimicrobial cannot reach the surface. We photograph the duct runs after cleaning and again after sanitizing to confirm coverage.
How long does air quality treatment last in North Potomac conditions?
A properly applied antimicrobial treatment binds to the duct liner and remains effective for months under normal conditions. However, the established spring pollen load from North Potomac’s tree canopy means annual mechanical cleaning is the realistic maintenance interval. Call (806) 606-6902 for a written recommendation.
Brands We Service in North Potomac
We work with equipment from Honeywell, Aprilaire, and Abatement Technologies in North Potomac homes. Common replacement parts, UV lamps, and filter media are stocked on the truck for faster turnarounds, and specialty items arrive within days. See our brands page for the full equipment roster and what each brand’s components typically fail on in this climate.
Pricing for Air Duct Cleaning in North Potomac, MD
| Service | Typical range in North Potomac |
|---|---|
| Dryer vent inspection with camera scope | $79 - $119 |
| Standard dryer vent cleaning | $129 - $229 |
| Severe lint pack removal add-on | $40 - $70 |
| Whole-system duct sealing | $450 - $900 |
| Flex duct section replacement | $180 - $380 per run |
| Mastic sealing per joint | $45 - $95 |
| Mold treatment per system | $450 - $900 |
| Bacteria sanitizing per system | $350 - $650 |
| UV light installation | $650 - $1,150 |
| Whole-home air purifier install | $600 - $1,200 |
North Potomac pricing trends toward the upper half of these ranges because long flex runs, finished basement zones, and multi-zone systems require more scope time and more labor. Under Haven Standard Clause 1, the written price is delivered before any panel comes off, and that is the number on your invoice.
Neighborhoods We Serve in North Potomac
CleanRun covers all of North Potomac and the surrounding Montgomery County communities. We schedule by neighborhood cluster, and typical response is one to three business days for most jobs.
- Willows of Potomac
- Dufief Mill Estates
- Quince Haven
- Seneca Highlands
- Potomac Chase
Service Area - Cities Near North Potomac
We also serve Baltimore, MD for larger commercial ductwork and historical home retrofits, Columbia, MD for planned-community housing with similar 1980s-era duct systems, Germantown, TN for relocation referrals, and Silver Spring, MD for older suburban stock with comparable humidity-driven issues.
Serving North Potomac, MD - Our Local Coverage Area
We’re based in the North 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 North Potomac
Most North Potomac appointments are scheduled within one to three business days. The actual service window is set when you call, and the written price is sent before the crew arrives, so there is no in-home negotiation on the day of work.
No, interior duct cleaning does not require HOA approval in any North Potomac community. Exterior dryer vent termination changes, like a roof-mounted bird guard, may require a quick review in some HOA-governed neighborhoods, but most allow standard replacements.
We serve the full North Potomac area, including every neighborhood cluster and ZIP code within the community boundary. Our crews are dispatched from the Washington, DC metro office and work locally in North Potomac on a scheduled basis. Call (806) 606-6902 with your address and we’ll confirm the next available window.
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 North Potomac Customers Say
"They found a disconnected duct in the crawl space that had been dumping conditioned air under the house for years. Photographed it, quoted the repair, fixed it."
- Devon A."On time, professional, and explained what the readings meant without talking down to me."
- Warren E."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.