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.
Before
After
Before
After
Before
AfterAir Duct Cleaning in Rockville, MD
HVAC cleaning in Rockville typically runs $380-$620 for a complete system, with most jobs scheduled within a week during peak spring and summer seasons. CleanRun crews handle the full range of duct and HVAC work in Rockville, from evaporator coil cleaning in King Farm townhomes to full system restoration in Twinbrook’s original 1950s cape cods with galvanized trunk lines that have never been serviced. Call (571) 520-6317 for a written estimate before any work begins.
Why Rockville Homes Are Different
Rockville’s housing stock splits sharply into two eras, and the ductwork tells the story. In Twinbrook and East Rockville, thousands of 1950s-1960s cape cods and ramblers built for postwar federal workers still run on original galvanized or bare sheet-metal ductwork now 60-70 years old. These systems were rarely designed for cleaning access and have typically never been professionally serviced. The supply ducts often pass through uninsulated crawl spaces without vapor barriers, so summer condensation forms on duct exteriors and, over time, mold colonizes interior metal surfaces. Homeowners notice it first as a musty odor when the AC switches on in late May.
The other half of Rockville’s market, King Farm and the condos around Rockville Town Center, uses modern flexible duct systems with insulated liners that deteriorate differently. Technicians alternate between these two housing types on consecutive calls. Add Montgomery County’s heavy oak and mixed-hardwood pollen load each April-May, plus sustained summer humidity that drives condensation in rim-joist cavities, and Rockville presents a concentrated, technically varied workload that newer suburbs simply don’t match.
Our Main Rockville Services
Rockville homeowners most often call CleanRun for these three services:
Air Duct Cleaning in Rockville
We clean supply and return duct runs in Rockville’s full range of housing, from rigid galvanized trunk lines in Twinbrook cape cods to flex-duct systems in King Farm townhomes. Every job includes a documented photo record of every duct run before and after, delivered as part of the standard job record.
Dryer Vent Cleaning in Rockville
Dryer vent blockages are common in Rockville’s multi-story townhomes and condo stacks, where long horizontal or vertical runs accumulate lint that standard homeowner tools cannot reach. Our dryer vent cleaning service uses professional-grade extraction equipment to restore full airflow and reduce fire risk.
Duct Repair & Sealing in Rockville
Original sheet-metal ductwork in Rockville’s older neighborhoods often suffers from separated seams, failed tape, and rust-through from decades of condensation exposure. Our duct repair and sealing work addresses these failures with mechanical fastening and mastic sealing, not temporary tape fixes.
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.
BeforeAfterHVAC Cleaning in Rockville
Rockville’s combination of aging original equipment and high seasonal pollen loads makes HVAC cleaning a distinct service from standard duct cleaning. In Twinbrook’s 1950s systems, we regularly find evaporator coils clogged with debris that has bypassed long-missing filters, while King Farm’s newer heat pumps suffer from blower wheel buildup due to fine construction dust from ongoing area development. CleanRun’s HVAC Cleaning service addresses these component-level problems with documented before-and-after photography and written pricing under Haven Standard Clause 1.
Evaporator Coil Cleaning
Signs you need it
Ice formation on refrigerant lines, weak airflow from registers, or AC running continuously without reaching set temperature in July humidity.
What it costs in Rockville
Evaporator coil cleaning in Rockville typically ranges $180-$340 depending on accessibility and contamination level.
How we do it
We access the coil through the plenum (the main air distribution box), apply foaming cleaner, rinse with low-pressure water, and photograph the coil surface before and after.
Blower Cleaning
Signs you need it
Vibration or noise from the air handler, uneven airflow between rooms, or dust puffing from registers when the system cycles on.
What it costs in Rockville
Blower assembly cleaning in Rockville typically ranges $160-$280 for standard residential units.
How we do it
We remove the blower wheel and housing, clean each vane with compressed air and solvent, balance the assembly, and document runout with a photo.
What HVAC Cleaning Costs in Rockville
| Item | Typical range in Rockville |
|---|---|
| Evaporator coil cleaning | $180-$340 |
| Blower assembly cleaning | $160-$280 |
| Full HVAC system cleaning (coil + blower + housing) | $380-$620 |
How do I know my HVAC components need cleaning, not just my ducts?
If your ducts are clean but rooms still heat or cool unevenly, or your AC freezes up in humid weather, the problem is likely at the coil or blower, not in the duct runs themselves. A camera inspection of the plenum shows the difference. Call (571) 520-6317 and we’ll put it in writing.
Can HVAC cleaning fix the musty smell when my AC first turns on?
Yes, if the odor comes from microbial growth on the evaporator coil or in the condensate pan, which is common in Rockville’s humid summers, especially in older homes with poor drainage. We treat the coil and pan, then document the cleaned surface with photos.
Air Quality & Sanitizing in Rockville
Rockville’s humid continental climate creates conditions inside ductwork that directly drive air quality problems. In Twinbrook’s original cape cods, condensation on uninsulated metal ductwork in crawl spaces produces mold growth that homeowners only discover when the first hot week triggers musty airflow. King Farm’s newer flex-duct systems face different issues: deteriorating insulation liners release fibers, and tight construction traps VOCs from finishes and adhesives. CleanRun’s Air Quality & Sanitizing service addresses these distinct Rockville problems with targeted treatments, not generic fogging.
Mold Treatment
Signs you need it
Musty odor when the HVAC cycles on, visible dark spotting on register faces, or recent water intrusion in crawl spaces or rim joists.
What it costs in Rockville
Targeted mold treatment in Rockville typically ranges $280-$480 depending on affected duct length and accessibility.
How we do it
We apply an EPA-registered antimicrobial through the duct system under negative pressure, treat the source moisture problem, and deliver before-and-after photos of affected runs.
UV Light Installation
Signs you need it
Recurring mold despite cleaning, chronic allergy symptoms that spike when indoors, or a home with persistent humidity above 60% in summer.
What it costs in Rockville
UV-C light installation in Rockville typically ranges $340-$580 including fixture and electrical connection.
How we do it
We mount a Honeywell or Guardsman UV-C fixture in the supply plenum, wire to the blower circuit for automatic operation, and show the customer the installed position with a photo.
What Air Quality & Sanitizing Costs in Rockville
| Item | Typical range in Rockville |
|---|---|
| Mold treatment (targeted, per system) | $280-$480 |
| UV-C light installation | $340-$580 |
| Full air quality package (treatment + UV + filter upgrade) | $620-$980 |
Is mold in ducts common in Rockville homes?
Yes, particularly in pre-1970 homes with uninsulated crawl space ductwork where summer condensation creates sustained moisture on metal surfaces. We find active growth in roughly one-third of Twinbrook-era systems we inspect. Call (571) 520-6317 for a camera inspection and written scope.
Do UV lights actually prevent mold, or just kill what’s there now?
UV-C light inhibits new mold colonization on the coil and in the plenum by breaking down cellular structure, but it does not remove existing debris or treat duct runs downstream. For Rockville homes with chronic moisture, we typically pair UV installation with source remediation.
Brands We Service in Rockville
CleanRun stocks parts and services equipment from Honeywell, Aprilaire, Rotobrush, and Guardsman, with Nikro and Abatement Technologies extraction equipment on every truck. Most replacement components for Rockville’s common systems are available same-day from our Washington, DC coordination office. See our brands for the full equipment roster.
Pricing for Air Duct Cleaning in Rockville, MD
| Service | Typical range in Rockville |
|---|---|
| Standard air duct cleaning (whole system) | $320-$520 |
| Evaporator coil cleaning | $180-$340 |
| Blower assembly cleaning | $160-$280 |
| Condenser cleaning | $140-$240 |
| Full HVAC system cleaning | $380-$620 |
| Mold treatment (targeted) | $280-$480 |
| Bacteria sanitizing | $220-$380 |
| UV-C light installation | $340-$580 |
| Air purifier installation | $480-$860 |
| Dryer vent cleaning | $140-$260 |
| Duct repair & sealing (per system) | $380-$720 |
Prices in Rockville run toward the higher end when systems have original 1950s ductwork with limited access panels, or when multiple return runs require separate cleaning cycles. Every job starts with a written price under Haven Standard Clause 1 before any panel comes off, and the 365-Day Done Right Promise covers all work in writing.
Neighborhoods We Serve in Rockville
CleanRun crews work across Rockville’s full geography, from the original postwar tracts to newer developments. Scheduling is coordinated from our Washington, DC office with typical appointment availability within 5-7 days during standard seasons and 7-10 days during peak pollen periods in April-May.
- Twinbrook
- East Rockville
- King Farm
- Rockville Town Center
- Falls Grove
Service Area - Cities Near Rockville
CleanRun serves homeowners throughout central Montgomery County and into northwest DC suburbs. Crews are regularly dispatched to Gaithersburg, MD, Bethesda, MD, Germantown, MD, and Silver Spring, MD, with the same written pricing and documented photo standards applied to every job.
Serving Rockville, MD - Our Local Coverage Area
We’re based in the Rockville 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 Rockville
No permit is required for standard duct cleaning or HVAC component cleaning in Rockville. Duct repair or modification that alters the building’s structural envelope may require Montgomery County permitting; we handle permit identification as part of our written scope when applicable.
Standard appointments are typically available within 5-7 days, extending to 7-10 days during peak demand after heavy pollen periods in April-May. We do not maintain artificial urgency or limited-slot messaging; scheduling is straightforward and confirmed in writing.
Yes, we regularly work in Rockville’s multi-unit buildings with HOA-coordinated access. Our technicians are background-checked and uniformed under Haven Standard Clause 3, identified by name before arrival, and equipped for the shorter duct runs and common-wall systems typical of townhome construction.
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 Rockville Customers Say
"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."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.