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.
Air Duct Cleaning in Rockville, MD
HVAC cleaning in Rockville typically costs $350-$650 for a complete system, while air quality and sanitizing services range from $200-$500 depending on the scope. We’re CleanRun, and we dispatch crews to Rockville from our Washington, DC office. Call (240) 363-3380 for a written estimate before any work starts.
Rockville’s housing stock tells the story. The 1950s-era ramblers in Twinbrook and East Rockville still run original sheet-metal trunk-and-branch systems through basements and crawl spaces, while 1970s-80s townhomes shed deteriorating flex-duct liner into the airstream. Our crews photograph every duct run before and after, so Rockville homeowners see what was actually removed, not just hear vacuum noise.
Why Rockville Homes Are Different
Rockville sits in the Piedmont’s transitional humidity zone, where summer dew points hang in the low-to-mid 70s°F. That moisture condenses inside unconditioned ductwork and accelerates mold colonization, especially in the original pan returns built into block foundation walls in Twinbrook - what locals call those 1950s sheet-metal return plenums that have never been cleaned.
The spring pollen surge here is among the heaviest in the mid-Atlantic. Oak, maple, and cherry release pollen counts that drive predictable post-spring indoor air quality complaints. Homes in King Farm and Fallsgrove face different issues: newer construction with tighter envelopes that trap whatever enters the duct system. The housing age split in Rockville means no single cleaning approach works everywhere.
Our Main Rockville Services
Rockville homeowners most often call us about these three services, each with its own dedicated local page.
Air Duct Cleaning in Rockville
We clean supply and return duct runs in Rockville’s aging ramblers and newer townhomes alike, with special attention to the rust scale and biological growth that accumulates in original pan returns. Every job includes a Documented Photo Record of every run. Air Duct Cleaning in Rockville covers our full process and pricing.

Dryer Vent Cleaning in Rockville
Lint accumulation in dryer vents is a fire hazard, and Rockville’s multi-story townhomes often have long vent runs with multiple elbows that trap debris. We clean the full vent path from appliance to termination, with before-and-after photos. Dryer Vent Cleaning in Rockville has the details.

Duct Repair & Sealing in Rockville
Collapsed flex-duct liner in 1970s-80s townhomes and rusted sheet-metal seams in Twinbrook ramblers both leak conditioned air into attics and crawl spaces. We scope, photograph, and quote repairs with a written price before any work begins. Duct Repair & Sealing in Rockville explains our approach.

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.
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Rockville’s 1950s-era systems and 1980s townhome HVAC units both suffer from the same regional stress: decades of cycling through Montgomery County’s muggy summers and cold winters leaves evaporator coils coated in biological film and blower wheels unbalanced by debris buildup. HVAC Cleaning addresses the full system, not just the ducts.
In Twinbrook, we regularly find evaporator coils with 1/8-inch slime layers that restrict airflow and raise energy bills. In King Farm townhomes, the tighter construction means any coil contamination circulates faster through smaller living spaces. Our crews use Rotobrush and Abatement Technologies equipment, and every HVAC cleaning job includes a written price before work starts and a 365-Day Done Right Promise backed in writing.
Evaporator Coil Cleaning
Signs you need it
Ice buildup on refrigerant lines, weak airflow from registers, or musty odors when the AC cycles on in Rockville’s humid summers.
What it costs in Rockville
Evaporator coil cleaning in Rockville typically runs $180-$320, with access difficulty in older basements affecting the final price.
How we do it
We remove the coil access panel, apply foaming cleaner, rinse with low-pressure water, and photograph the before and after condition for the job record.
Blower Cleaning
Signs you need it
Vibration or noise from the air handler, uneven heating or cooling across rooms, or dust puffing from registers when the system starts.
What it costs in Rockville
Blower cleaning in Rockville typically costs $150-$280, with variable-speed motors requiring additional care.
How we do it
We remove the blower assembly, clean the wheel and housing with compressed air and solvent, balance the assembly, and document with photos.
What HVAC Cleaning Costs in Rockville
| Item | Typical range in Rockville |
|---|---|
| Evaporator coil cleaning | $180-$320 |
| Blower cleaning | $150-$280 |
| Full HVAC system cleaning | $350-$650 |
How often should HVAC cleaning happen in Rockville?
Every 3-5 years for most Rockville homes, but annually if you have pets, allergies, or a 1950s-era system with original ductwork. Call (240) 363-3380 and we’ll scope your system to give you a specific interval.
Does HVAC cleaning include the ductwork?
No, HVAC cleaning covers the mechanical components - coil, blower, condenser - while duct cleaning addresses the distribution runs. We quote each separately with a written price for both, or either, before any work starts.
Air Quality & Sanitizing in Rockville

Rockville’s humidity-driven mold growth and heavy spring pollen create indoor air problems that filtration alone cannot solve. The 1950s pan returns in Twinbrook and deteriorating flex-duct in older townhomes both harbor biological contaminants that recirculate through living spaces. Air Quality & Sanitizing targets these sources with treatment, not just surface cleaning.
We use Guardsman and Aprilaire products where appropriate, and every treatment is scoped, photographed, and priced in writing before application. The 365-Day Done Right Promise applies to air quality work just as it does to mechanical cleaning.
Mold Treatment
Signs you need it
Visible growth inside registers or on vent covers, musty odors that intensify when the HVAC runs, or recent water intrusion in crawl spaces or basements.
What it costs in Rockville
Mold treatment in Rockville typically runs $250-$450 per affected zone, with extent of colonization and access difficulty determining the final price.
How we do it
We apply EPA-registered antimicrobial through the duct system, treat the affected plenum or trunk line with contact spray, and provide post-treatment photos and lab-ready documentation.
UV Light Installation
Signs you need it
Recurring mold despite cleaning, chronic allergy symptoms indoors, or a system located in a damp basement or crawl space.
What it costs in Rockville
UV light installation in Rockville typically costs $300-$550 including the lamp, housing, and electrical connection to the air handler.
How we do it
We mount the UV-C lamp downstream of the evaporator coil, wire to the blower circuit for automatic operation, and provide the model number and warranty documentation in the job record.
What Air Quality & Sanitizing Costs in Rockville
| Item | Typical range in Rockville |
|---|---|
| Mold treatment (per zone) | $250-$450 |
| UV light installation | $300-$550 |
| Whole-system air quality package | $400-$750 |
Is mold treatment safe for pets and kids?
Yes, we use EPA-registered products formulated for occupied residential spaces, with re-entry times specified on the product label and included in your written job record. We document the product name and application concentration for your reference.
How do I know the mold is actually gone?
We photograph every treated surface before and after, and we can arrange third-party post-treatment air sampling at your request. The 365-Day Done Right Promise covers retreatment if visible growth returns in the same location.
Brands We Service in Rockville
We stock parts and service equipment from Aprilaire, Abatement Technologies, Guardsman, Rotobrush, Nikro, and Honeywell. Most replacement components for Rockville systems are available within 24-48 hours. See our brands for full details.
Pricing for Air Duct Cleaning in Rockville, MD

| Service | Typical range in Rockville |
|---|---|
| Air duct cleaning (whole system) | $300-$550 |
| Dryer vent cleaning | $120-$220 |
| HVAC cleaning (full system) | $350-$650 |
| Evaporator coil cleaning | $180-$320 |
| Blower cleaning | $150-$280 |
| Condenser cleaning | $100-$180 |
| Duct repair & sealing (per run) | $200-$400 |
| Mold treatment (per zone) | $250-$450 |
| UV light installation | $300-$550 |
| Whole-system air quality package | $400-$750 |
Prices in Rockville increase with system age, access difficulty in crawl spaces or tight basements, and the extent of contamination found during scoping. We deliver a written price before any work starts, every time, under Haven Standard Clause 1. No exceptions.
Neighborhoods We Serve in Rockville
Our crews work throughout Rockville, from the post-war ramblers of Twinbrook and East Rockville to the planned communities of King Farm and Fallsgrove. Scheduling is coordinated from our Washington, DC office with routes designed for efficient coverage across Montgomery County.
- Twinbrook
- East Rockville
- King Farm
- Fallsgrove
- West End Park
Service Area - Cities Near Rockville

CleanRun serves homeowners throughout Montgomery County and surrounding areas. We regularly schedule work in Gaithersburg, MD, Bethesda, MD, Silver Spring, MD, and Waldorf, MD, with the same written-price guarantee and documented photo record on 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 residential air duct cleaning in Rockville. If our scoping reveals needed repairs that involve structural modification, we’ll note that in your written estimate and advise on any permit requirements before work proceeds.
We typically schedule Rockville appointments within 3-5 business days, with flexibility for urgent IAQ concerns. All calls are answered by a live person who can check real-time availability. Call (240) 363-3380 to book.
Most Rockville HOAs do not restrict interior duct cleaning. For exterior work like condenser cleaning in townhome complexes, we coordinate with your property manager if needed. We note any HOA requirements in your written scope before scheduling.
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."My allergies genuinely improved. They also told me the ducts did not need sealing, which I had been quoted for elsewhere."
- Petra K."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.




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