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
Complete HVAC cleaning and air quality work in Rockville typically runs $450-$950 for a full system, with most jobs scheduled within a week and finished in a single day. Rockville’s mix of 1950s-era ductwork in Twinbrook, mid-century systems in the Hungerford corridor, and aging shared trunks in Pike corridor garden apartments creates conditions we don’t see in newer Montgomery County developments. Every Rockville job starts with a written price before work begins and ends with a Documented Photo Record of every duct run. Call (571) 526-0015 for a free estimate.
Why Rockville Homes Are Different
Rockville’s housing stock splits into three distinct categories, and each changes what we find inside the ducts.
Twinbrook remains the standout. Roughly 1,800 cape cods and ramblers built in the early 1950s by Landstrom still run original-era sheet-metal duct systems through unconditioned crawl spaces. Technicians regularly open these to find no vapor barrier, ground moisture migrating into flex or early sheet-metal runs, and visible mold colonies the homeowner never suspected. The camera shows it before we say a word.
Mid-century split-levels throughout the Hungerford corridor carry ductwork from the 1960s and 70s, often retrofitted with early flexible duct that has begun to sag and collect debris at low points. Meanwhile, the dense 1970s-80s garden apartment complexes along Rockville Pike operate shared HVAC trunk lines frequently a decade past recommended cleaning intervals.
Montgomery County’s dense tree canopy drives oak and grass pollen counts among the highest in the DC metro. From March through June, return-air systems pull that load directly into ductwork. Humid subtropical summers push attic and crawl-space temperatures high enough to create condensation inside supply ducts during cooling season, compounding the problem in homes with aging insulation.
Our Main Rockville Services
Rockville homeowners call us most often for deep system cleaning, dryer vent work, and duct repair. Each has its own page with full pricing and scope details.
Air Duct Cleaning in Rockville
We clean every duct run in the system with negative-pressure extraction, agitation tools, and HEPA containment. In Rockville, this means addressing the debris loads that build in 1950s sheet-metal systems with decades of accumulation, and the pollen infiltration that spikes each spring. Every run is photographed before and after. Air Duct Cleaning in Rockville covers full pricing and what’s included.
Dryer Vent Cleaning in Rockville
Dryer vent blockages are a leading cause of house fires in Montgomery County. We remove lint buildup from the appliance connection through the exterior termination, test airflow with an anemometer, and document the before-and-after flow rate. Garden apartments along the Pike often have long vertical runs that require specialized rotary tools. Dryer Vent Cleaning in Rockville has full details.
Duct Repair & Sealing in Rockville
Disconnected ducts, corroded sheet metal, and failed flex connections waste conditioned air and pull crawl-space contaminants into living spaces. We repair or replace damaged sections and seal the system with mastic or metal-backed tape. Twinbrook homes frequently need repair at original trunk-to-branch connections that have loosened over seventy years. Duct Repair & Sealing in Rockville covers 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.
BeforeAfterHVAC Cleaning in Rockville
Full HVAC cleaning in Rockville addresses the components air duct cleaning alone cannot reach: the evaporator coil, blower assembly, condenser, and air handler. In Rockville’s older homes, these components carry debris loads from decades of operation without proper service, while the humid summers create ideal conditions for microbial growth on wet coils. Our HVAC Cleaning service documents every component with before-and-after photography.
Evaporator Coil Cleaning
Signs you need it
Ice buildup on the coil, reduced airflow from registers, or a musty odor when the AC first cycles on.
What it costs in Rockville
Evaporator coil cleaning typically runs $180-$340 in Rockville.
How we do it
We remove the access panel, apply foaming cleaner formulated for aluminum fins, rinse with low-pressure water, and photograph the coil condition before and after.
Blower Cleaning
Signs you need it
Vibration or noise from the air handler, uneven heating or cooling between rooms, or dust puffing from registers at startup.
What it costs in Rockville
Blower assembly cleaning typically runs $150-$280 in Rockville.
How we do it
We remove the blower motor and wheel, clean each blade and the housing with compressed air and solvent, balance the assembly, and reinstall with torque to manufacturer spec.
What HVAC Cleaning Costs in Rockville
| Item | Typical range in Rockville |
|---|---|
| Evaporator coil cleaning | $180-$340 |
| Blower assembly cleaning | $150-$280 |
| Full HVAC system cleaning (coil, blower, condenser, air handler) | $450-$750 |
How long does HVAC cleaning take in Rockville?
Most residential HVAC cleaning jobs in Rockville take 3 to 5 hours, depending on system accessibility and component condition. Twinbrook crawl-space systems may need additional time for safe access. Call (571) 526-0015 to schedule.
Will HVAC cleaning fix uneven temperatures between rooms?
It often helps significantly. Restricted coils and dirty blowers reduce airflow to distant duct runs; cleaning restores designed flow rates. Persistent imbalance may indicate duct leakage, which we assess and quote separately.
Air Quality & Sanitizing in Rockville
Air quality work in Rockville targets the microbial loads that thrive in aging duct systems and humid summer conditions. Twinbrook’s vented crawl spaces with no vapor barrier create environments where mold colonizes sheet-metal runs unseen until the ducts are opened. Our Air Quality & Sanitizing service applies EPA-registered treatments and documents results with photography.
Mold Treatment
Signs you need it
Visible growth at registers, a persistent earthy odor when the system runs, or recent water intrusion in a crawl space or basement.
What it costs in Rockville
Mold treatment for residential duct systems typically runs $350-$650 in Rockville.
How we do it
We apply an EPA-registered botanical fungistat to affected duct runs using mechanical fogging equipment, then verify treatment coverage with UV fluorescence and photograph every treated section.
UV Light Installation
Signs you need it
Recurring microbial growth after cleaning, allergy symptoms that peak during cooling season, or a system located in a damp basement or crawl space.
What it costs in Rockville
UV-C light installation in the air handler or plenum typically runs $280-$480 in Rockville.
How we do it
We mount a UV-C lamp in the return plenum or above the coil, wire to the blower circuit for automatic operation, and verify lamp intensity with a radiometer.
What Air Quality & Sanitizing Costs in Rockville
| Item | Typical range in Rockville |
|---|---|
| Mold treatment (duct system) | $350-$650 |
| UV-C light installation | $280-$480 |
| Full air quality package (treatment + UV + filter upgrade) | $550-$950 |
Is mold in ducts common in Rockville?
Yes, particularly in pre-1960 homes with crawl-space ductwork and no vapor barrier. Twinbrook properties show visible mold in roughly one of every three systems we open. Treatment is quoted only after photographic confirmation.
Are UV lights worth the cost?
For homes with chronic moisture issues or repeated microbial growth, yes. The lamp prevents regrowth on the coil and in the plenum, reducing the need for repeated chemical treatment. We warranty installation workmanship for one year.
Brands We Service in Rockville
We clean and service all major HVAC brands and stock common replacement parts for Trane, Carrier, Lennox, Rheem, Goodman, and Bryant systems in our local inventory. Most Rockville repairs requiring standard components are completed same visit. our brands page lists full coverage.
Pricing for Air Duct Cleaning in Rockville, MD
| Service | Typical range in Rockville |
|---|---|
| Standard air duct cleaning (whole system) | $350-$650 |
| Deep cleaning with agitation (heavy debris) | $450-$750 |
| Dryer vent cleaning | $120-$220 |
| Duct repair (per section) | $180-$350 |
| Duct sealing (whole system) | $400-$800 |
| Evaporator coil cleaning | $180-$340 |
| Blower assembly cleaning | $150-$280 |
| Full HVAC system cleaning | $450-$750 |
| Mold treatment (duct system) | $350-$650 |
| UV-C light installation | $280-$480 |
| Full air quality package | $550-$950 |
Prices increase in Rockville when systems require additional access work, such as cutting into finished basement ceilings to reach ductwork, or when multiple zones need separate cleaning. Every price is written and agreed before work begins, Haven Standard Clause 1. No per-vent pricing, no add-ons after arrival.
Neighborhoods We Serve in Rockville
We schedule Rockville appointments with routing from our Washington, DC office, typically offering availability within 5-7 business days. Crews are background-checked, uniformed, and identified by name before arrival.
- Twinbrook
- King Farm
- Fallsgrove
- Hungerford corridor
- Rockville Pike corridor (garden apartments)
Service Area - Cities Near Rockville
CleanRun crews serve Montgomery County and the broader DC metro from our Washington office. We regularly schedule in Gaithersburg, MD to the north and Silver Spring, MD to the south, with the same written pricing and documentation 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 residential air duct or HVAC cleaning in Rockville. Duct repair or modification that alters the building’s mechanical plan may require Montgomery County permitting; we identify this during the initial inspection and handle documentation if needed.
Most Rockville homeowners are scheduled within 5-7 business days. We do not maintain artificial urgency or limited-slot messaging. Call (571) 526-0015 for current availability.
Yes, we clean shared HVAC systems in multi-unit buildings along the Pike corridor. These jobs require coordination with building management for access to mechanical rooms and trunk lines; we quote only after a site walk with the property manager.
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
"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."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.