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 Bethesda, MD
Dryer vent cleaning in Bethesda runs $149-$269 for a standard single-story vent run, with duct repair and air quality work priced separately depending on what the camera shows. Bethesda’s mix of 1950s brick colonials, recent teardown rebuilds, and humid summers means most homes here need more than a basic vacuum pass - they need documented work on aging galvanized plenums, post-construction flex-duct, and fiberglass liner that’s been shedding for decades. Call CleanRun Air Duct Cleaning at (806) 606-6902 and we’ll give you a written price before any panel comes off.
Why Bethesda Homes Are Different
Bethesda sustains one of the highest teardown-and-gut-renovation rates in the DC metro. Drive through Kenwood or Bradley Hills any given month and you’ll see dumpsters on half the blocks. That matters for ductwork in two ways: renovated homes collect drywall dust and blown-in insulation particles inside brand-new flex-duct runs that never got cleaned after punch-out, and adjacent properties absorb construction debris through return-air intakes while the work happens next door.
The older stock tells a different story. Cape Cods and split-levels built between 1945 and 1970 in neighborhoods like Bradley Hills still run original sheet-metal trunk lines with fiberglass duct-board liner. After 50-plus years, that liner delaminates and sheds particulate into the air supply - we routinely pull loose fiber debris from registers in Bethesda homes where the duct interiors have never been touched. Add Montgomery County’s protected tree canopy, which produces some of the highest seasonal pollen loads in the metro, and humid summers that condense moisture inside basement duct runs, and you have a market where post-construction cleaning and liner remediation are recurring needs, not one-offs.
Our Main Bethesda Services
Most Bethesda homeowners call us first for two jobs: full air duct cleaning and HVAC system cleaning. Here’s how each works in this market.
Air Duct Cleaning in Bethesda
We clean every supply and return run in the home using truck-mounted negative-pressure extraction, which pulls debris out rather than brushing it loose into the living space. In older Bethesda homes, the job often includes removing delaminated fiberglass liner fragments from 1950s-era galvanized plenums. In newly renovated homes, we’re usually extracting drywall dust and spray-foam particles from flex-duct installed during a recent teardown rebuild. Every run is photographed inside before and after, and you get that photo record as a standard deliverable. Air Duct Cleaning in Bethesda has the full scope and pricing breakdown.
HVAC Cleaning in Bethesda
HVAC cleaning addresses the blower motor, evaporator coil, condensate pan, and housing - the components that move air through your Bethesda home. Pollen from Montgomery County’s tree canopy and humidity-driven biological growth inside the air handler are the two main reasons coils clog faster here than in drier inland markets. We clean and photograph the entire system, then confirm airflow with a before-and-after static pressure reading. See HVAC Cleaning in Bethesda for what’s included and what it costs in this area.
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 Bethesda
Dryer vent cleaning in Bethesda typically runs $149-$269 for a standard single-story vent run, and it’s the service where we most often find conditions that are about to become a problem - not just lint, but full blockages, bird nesting in vent caps on older colonials, and vents that were never correctly routed when a laundry room was relocated during a renovation. We work on Bethesda’s 1945-1970 housing stock daily, and most vents in homes this age have never been cleaned since installation. Our Dryer Vent Cleaning service follows a written scope on every job, and everything inside the vent gets photographed before and after.
Dryer Vent Inspection
Signs you need it
Clothes take longer than 45 minutes to dry in a Bethesda home’s original vent run, or the outside vent flap doesn’t open when the dryer runs.
What it costs in Bethesda
An inspection combined with cleaning runs $149-$269 depending on vent length and number of floors.
How we do it
We run a camera through the full vent run from the dryer connection to the exterior cap, log every restriction and joint condition, and photograph the interior before and after cleaning.
Lint Removal
Signs you need it
Lint is visible at the exterior vent cap, or the dryer shuts off mid-cycle on a high-limit trip in a Bethesda colonial with a long vertical vent run.
What it costs in Bethesda
Full lint removal is $149-$269 based on run length and access, with rerouting quoted separately if the run is non-compliant.
How we do it
We connect a HEPA-filtered rotary brush system (Rotobrush or Nikro, depending on the run configuration) and pull the lint pack out to the exterior, then re-camera to verify a clear run.
What Dryer Vent Cleaning Costs in Bethesda
| Item | Typical range in Bethesda |
|---|---|
| Standard vent cleaning (single-story) | $149-$269 |
| Inspection combined with cleaning | $149-$269 |
| Vent rerouting or cap replacement | $140-$1,400 |
How often should a Bethesda dryer vent be cleaned?
Every 12 months for a home with regular laundry use. Homes with long vertical vent runs, especially in older two-story colonials, may need it every 9 months. Call (806) 606-6902 for a written price.
Does a Bethesda renovation affect dryer vent cleaning?
Yes. When laundry rooms get relocated during teardown rebuilds, the vent run is often extended with joints that trap lint. We check the full run each visit. Call (806) 606-6902 to schedule.
Duct Repair & Sealing in Bethesda
Duct repair and sealing in Bethesda addresses the air you paid to condition but never reaches the room. In homes built between 1945 and 1970, failed duct tape at joints, rusted-through sections in basement trunk lines, and delaminated fiberglass liner mean 15-30% of conditioned air escapes into unconditioned spaces. We assess the full duct system, give you a written repair scope with per-section pricing, and photograph the condition of every run before the first patch goes on. This is the part of our work where the difference between a shop-vac crew and actual repair becomes obvious: we use mastic sealant and replacement sections, not tape, and we document the repair. Duct Repair & Sealing is our full service page with all pricing tiers.
Duct Sealing
Signs you need it
Rooms at the far end of a Bethesda, MD home never reach the set temperature, or the utility bill climbs every summer despite no change in usage.
What it costs in Bethesda
Sealing typically runs $2.25-$4.70 per square foot of the home’s conditioned area in Bethesda.
How we do it
We locate leaks with a duct blaster or smoke test, then seal joints and seams with mastic and embedded fiberglass mesh, photographing the sealed joints before moving to the next section.
Flex Duct Repair
Signs you need it
A recently rebuilt Bethesda home has flex-duct runs that are kinked, disconnected, or crushed where they pass through new framing.
What it costs in Bethesda
Repair or replacement runs $140-$1,400 depending on the number of runs, their accessibility, and whether a section or the entire run is replaced.
How we do it
We identify each failed run, quote the repair section by section in writing, and either re-hang with proper supports, reconnect with collar fasteners or replace the run entirely, then verify airflow by measurement.
What Duct Repair & Sealing Costs in Bethesda
| Item | Typical range in Bethesda |
|---|---|
| Duct sealing | $2.25-$4.70 per sq ft |
| Flex duct repair / replacement | $140-$1,400 |
| Metal duct repair / rust section replacement | $140-$1,400 |
Why do Bethesda ducts leak so much?
The original 1950s-1970s systems used cloth or paper tape at joints, which fails after decades. Humid basement air accelerates rust-through in metal trunk lines. Call (806) 606-6902 for a written assessment.
Is duct sealing worth it if I’m planning to renovate?
Yes - sealing now prevents construction dust from pressurizing leaky runs and spreading through your Bethesda home mid-renovation. We give a written scope before work starts. Call (806) 606-6902 to schedule.
Air Quality & Sanitizing in Bethesda
Air quality and sanitizing in Bethesda is about removing what’s already growing inside your ductwork and preventing it from returning. The humid summers create persistent condensation in basement duct runs, which supports mold growth on fiberglass liners and interior surfaces - a condition we find in older homes throughout Bethesda, MD. We combine source removal with sanitizing treatment and, where appropriate, new filtration or UV equipment matched to the duct system. Our Air Quality & Sanitizing service always includes before-and-after documentation of the affected areas, so you can see what was there and what we did about it.
Mold Treatment
Signs you need it
Musty odor whenever the system runs in a Bethesda home, or visible growth inside the supply registers on cool summer days in basement-level rooms.
What it costs in Bethesda
Mold treatment runs $1,500-$5,500 for a typical whole-home system in Bethesda depending on severity and area affected.
How we do it
We identify and document the affected areas with a camera scope, physically remove contaminated liner or material where needed, then apply EPA-registered antimicrobial treatment and verify the result with follow-up photos.
UV Light Installation
Signs you need it
The evaporator coil in your Bethesda home’s air handler shows biological growth during an annual inspection, or someone in the house has mold-sensitive allergies.
What it costs in Bethesda
UV light installation runs $1,500-$4,300 with the fixture installed at the coil and wired to run continuously.
How we do it
We mount the light (Honeywell or Guardsman depending on your system layout) at the evaporator coil, secure the wiring, and confirm the fixture operates before we leave, with wall switch or dry disconnect per code.
What Air Quality & Sanitizing Costs in Bethesda
| Item | Typical range in Bethesda |
|---|---|
| Mold treatment (whole-home) | $1,500-$5,500 |
| UV light installation | $1,500-$4,300 |
| Air purifier install | $150-$500 |
Will sanitizing remove the musty smell in my Bethesda basement ducts?
Yes, when the source is organic growth inside the ducts. Sanitizing alone won’t help if moisture ingress continues - we identify and address any standing water or condensation path first. Call (806) 606-6902 for a written quote.
How long does UV light treatment last?
The fixture runs continuously for 2-3 years before the bulb needs replacement. We document installation with photos and give you the bulb model number. Call (806) 606-6902 to schedule an assessment.
Brands We Service in Bethesda
Our Bethesda technicians work on all major residential HVAC and duct brands, and our vans carry common replacement parts for Rotobrush, Nikro, and Guardsman systems so most repairs complete in a single visit. See our brands for the full equipment list and manufacturer information.
Pricing for Air Duct Cleaning in Bethesda, MD
| Service | Typical range in Bethesda |
|---|---|
| Dryer vent cleaning (single-story) | $149-$269 |
| Air duct cleaning (whole-home) | $450-$2,500 |
| Duct sealing | $2.25-$4.70 per sq ft |
| Flex duct repair / replacement | $140-$1,400 |
| Metal duct repair / rust replacement | $140-$1,400 |
| Mold treatment (whole-home) | $1,500-$5,500 |
| UV light installation | $1,500-$4,300 |
| Air purifier install | $150-$500 |
Three things push pricing toward the upper ends in Bethesda: duct runs in finished basements that require access panels removed carefully, post-construction debris in recently renovated homes that needs multiple extraction passes, and delaminated fiberglass liner in older systems that must be removed before cleaning can begin. Every job gets a written price before work starts - Haven Standard Clause 1 - and that number is the number you pay.
Neighborhoods We Serve in Bethesda
We serve every neighborhood inside the Bethesda, MD service area, with crews scheduled throughout the week. Depending on the week and the scope, most appointments start within 4-7 business days.
- Kenwood
- Bradley Hills
- Edgemoor
- Battery Park
- Wyngate
Service Area - Cities Near Bethesda
In addition to Bethesda itself, our crews handle duct cleaning, repair, and air quality work in nearby Montgomery County communities including Silver Spring, MD, Potomac, MD, Rockville, MD, and Gaithersburg, MD. Dispatch for these routes is coordinated from our Washington, DC office.
Serving Bethesda, MD - Our Local Coverage Area
We’re based in the Bethesda 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 Bethesda
Most appointments start within 4-7 business days depending on the current schedule and the scope of work. We never double-book or rush a job to fit another one in. Call (806) 606-6902 and we’ll tell you our next real available date.
No Montgomery County permit is required for routine duct cleaning, sealing, vent replacement, or air quality treatment. Any structural changes to the home are outside our scope. We’ll confirm this in writing as part of your job scope.
Yes, we cover the entire Bethesda service area - downtown, the neighborhoods around Wisconsin Avenue, and the residential stretches along River Road and Old Georgetown. If you’re inside the Bethesda postal boundary, we’re available. Call (806) 606-6902 to confirm.
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 Bethesda 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.