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 Rockville, MD
Dryer vent cleaning in Rockville is not a routine chore here the way it is in drier parts of the country. The combination of 1950s and 1960s housing stock in neighborhoods like Twinbrook, long vent runs through unconditioned crawlspaces, and Rockville’s humid summers means lint accumulates faster and stays damp longer. We pull apart vents in Rockville every week that would have passed inspection in Phoenix. If your dryer takes two cycles to finish a load, call (806) 606-6902 for a written price before any work starts.
Why Rockville Homes Are Different
Rockville’s housing stock spans two very different duct profiles. In Twinbrook, one of Montgomery County’s largest post-WWII subdivisions, original sheet-metal duct systems in 1950s cape cods and ramblers have spent decades pulling humid summer air through unsealed joints. We routinely find rust blooms at the boot connections and a fine gray paste of lint, pollen, and construction dust packed into the first elbow of each supply run. In newer condos along the Rockville Pike corridor near the Red Line, the problem is different but just as predictable: short, flex-heavy runs that get pinched during renovation work, reducing airflow to a whisper by the time air reaches the bedrooms.
What ties the whole city together is climate. Rockville’s humid subtropical summers push attic and crawlspace duct surfaces past the dew point regularly, which means condensation inside ductwork is not a fluke, it is an annual event. Add the spring pollen load from the area’s dense hardwood canopy and you get return-air plenums that trap debris, hold moisture, and give mold exactly what it needs. Homes in Fallswood and Woodley Gardens built in the 1970s and 1980s are no exception; sealed-joint standards were not common practice then, and the crawlspaces still run damp half the year.
Our Main Rockville Services
These are the two services Rockville homeowners book most often, and each has its own dedicated page with pricing, sub-jobs, and local detail.
Air Duct Cleaning in Rockville
Whole-system Air Duct Cleaning in Rockville is the job that makes the biggest visible difference in Twinbrook and similar mid-century neighborhoods. We run a negative-pressure extraction rig on every run, photograph the inside of each duct before and after, and deliver that photo record as part of the standard job file. In older Rockville homes, this service often uncovers disconnected joints and failed seals that have been leaking conditioned air into crawlspaces for years – findings we document in writing so you can decide what to handle now and what can wait.
HVAC Cleaning in Rockville
HVAC Cleaning in Rockville goes beyond the ducts to the components that move and condition the air: blower wheels, evaporator coils, and drain pans. In Rockville’s humid summers, evaporator coils grow a biofilm that cuts efficiency and smells faintly of wet socks. We clean the coil in place when accessible, clear the condensate drain line, and document the before-and-after with the same photo record we provide on every duct job. It is a practical first step when a system runs but does not cool the way it used to.
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 Rockville
Dryer vent cleaning in Rockville is a safety job as much as an efficiency job. In Twinbrook’s original 1950s ramblers, dryer vents often run twenty feet or more through unconditioned basement or crawlspace space, with at least two 90-degree elbows where lint reliably piles up. Rockville’s humid summers keep that lint damp, and damp lint is how you get a smoldering blockage instead of a dusty one. The fix is straightforward: we run a rotary brush through the full vent run, pull the packed debris out from the exterior termination, and photograph the inside of the pipe before and after, the same Dryer Vent Cleaning standard we have applied on every job since 2013.
Dryer Vent Inspection
Signs you need it
Your dryer takes more than one full cycle to dry a standard load, the exterior vent flap barely moves during operation, or you cannot remember the last time anyone looked inside the vent run.
What it costs in Rockville
Dryer vent inspection in Rockville runs $65 to $95, and the price is credited toward any cleaning we schedule from the findings.
How we do it
We disconnect the vent at the dryer, run a high-resolution camera through the full length of the run, and show you the footage before documenting our findings in writing with a fixed price for any needed work.
Lint Removal
Signs you need it
The outside vent hood is packed with visible gray fuzz, the laundry room feels warmer than the rest of the house when the dryer runs, and drying time has crept up noticeably over the past six months.
What it costs in Rockville
Lint removal for a standard Rockville vent run costs $130 to $220, and the total depends on the run length and how packed the first elbow has become.
How we do it
We run a rotary brush through the full vent from the dryer connection to the exterior termination, collect the loosened debris with a HEPA-filtered vacuum, and hand you a before-and-after photo record of the pipe interior.
Vent Rerouting
Signs you need it
The existing vent run has more than two elbows, runs over fifteen feet, or terminates in a soffit, crawlspace, or other location that traps moisture and lint year after year.
What it costs in Rockville
Vent rerouting in Rockville typically runs $360 to $590, with the range set by run length, access through framing, and the new termination point we agree on in writing first.
How we do it
We build the new run with rigid metal duct and minimum elbows, terminate it at an accessible exterior wall, seal every joint with mastic, and photograph the finished interior before we leave.
Bird Guard Installation
Signs you need it
You find nesting material, droppings, or scratch noise at the exterior vent hood, or you have already evicted one bird and want to make sure the next one does not move in.
What it costs in Rockville
Bird guard installation runs $75 to $140, including the guard, anchoring hardware, and a photo record of the finished termination.
How we do it
We clear any existing debris from the vent, install a stainless or galvanized guard over the exterior termination, and verify that airflow at the hood is unchanged with a digital anemometer.
What Dryer Vent Cleaning Costs in Rockville
| Item | Typical range in Rockville |
|---|---|
| Dryer vent inspection | $65 – $95 |
| Lint removal / standard vent cleaning | $130 – $220 |
| Bird guard installation | $75 – $140 |
Runs longer than fifteen feet or with multiple elbows push the price toward the upper end of these ranges. The price we quote is the price you pay; it is written down before any panel comes off, per Haven Standard Clause 1.
How much does dryer vent cleaning actually cost in Rockville?
For a standard single-family home in Rockville, expect $130 to $220 for a full vent cleaning. Longer runs, older homes in Twinbrook with original vent paths, or heavily packed vents can push it higher. Call (806) 606-6902 for a written quote.
Why are some Rockville vent cleaning quotes so much cheaper?
Cheap quotes usually mean the tech runs a vacuum hose a few feet from the wall and stops. We brush the full run and photograph the inside of the pipe before and after. Call (806) 606-6902 for a real number in writing.
Duct Repair & Sealing in Rockville
Duct repair and sealing in Rockville is the step between a cleaning job and an HVAC replacement, and in Twinbrook it is often the more important one. Original 1950s supply boots in that neighborhood were frequently set into the concrete slab with no sealed collar, so for decades soil moisture has wicked up into the supply runs. The result is rust, loose connections, and air that never makes it to the register. Our Duct Repair & Sealing work starts with finding every leak and ends with a photo record of each repaired joint, so you know exactly what was opened and how it was closed.
Duct Sealing
Signs you need it
Rooms at the far end of the house stay warm in summer, your energy bills run higher than neighbors with similar homes, or you can feel air moving around the duct joints in the crawlspace ourselves.
What it costs in Rockville
Duct sealing in Rockville runs $450 to $900 for an average single-family system, with larger homes or heavily deteriorated runs landing at the top of that range.
How we do it
We access each accessible joint, apply UL-listed mastic sealant to every seam and connection, and photograph each sealed joint before closing the access panels.
Flex Duct Repair
Signs you need it
One room never reaches the thermostat temperature, the duct feels flat or crushed anywhere you can reach it, or a previous renovation left flex runs hanging with sharp kinks.
What it costs in Rockville
Flex duct repair in Rockville generally runs $200 to $450 depending on how many sections need replacement or re-supporting.
How we do it
We replace crushed or torn flex sections with code-compliant insulated flex, support the run at proper intervals with banding, and seal both ends with mastic before photographing the finished work.
Metal Duct Repair
Signs you need it
Visible rust blooms on duct surfaces in the crawlspace, a musty odor when the blower first kicks on, or small piles of rust flakes below any exposed run.
What it costs in Rockville
Metal duct repair in Rockville runs $350 to $700 depending on the number of corroded sections and how difficult they are to access.
How we do it
We cut out the rusted section, fit and fasten a new galvanized patch or section, seal every edge with mastic, and photograph the interior and exterior of the finished repair.
What Duct Repair & Sealing Costs in Rockville
| Item | Typical range in Rockville |
|---|---|
| Duct sealing (average system) | $450 – $900 |
| Flex duct repair | $200 – $450 |
| Metal duct repair | $350 – $700 |
Homes in Twinbrook with original slab-set boots often need sealing plus at least one metal patch, which is a common combination on our Rockville jobs. The written price always covers the entire scope we agree on before work starts.
Does duct repair require a permit in Rockville?
Most duct repair and sealing work in Rockville does not require a permit when we are working on existing accessible ductwork. If a job does trigger a permit requirement, we handle the application and tell you before any work begins.
How do I know the leaks were actually sealed?
Every joint we open or seal gets photographed before and after, and the photos are delivered to you as part of the job record. You can also request a duct leakage test report. Call (806) 606-6902 to schedule.
Air Quality & Sanitizing in Rockville
Air quality and sanitizing work in Rockville is about humidity as much as it is about particles. When attic and crawlspace duct surfaces sit below the dew point through the summer, moisture collects, and mold follows. In Twinbrook, where original sheet-metal runs are often uninsulated, condensation inside the duct is common enough that treating only the visible grille does nothing for the air you actually breathe. Our Air Quality & Sanitizing service addresses the inside of the duct run itself, then documents what was applied and where.
Mold Treatment
Signs you need it
You smell a persistent musty odor when the HVAC runs, see dark staining on the inside of a duct register, or a previous inspection found mold-like growth on the coil or plenum.
What it costs in Rockville
Mold treatment in Rockville runs $350 to $800 depending on the area treated, and we document the affected zone before and after application.
How we do it
We clean the affected surfaces to remove loose material, apply an EPA-registered antimicrobial to the duct interior and coil, and photograph every treated section before closing the system.
Odor Removal
Signs you need it
A specific smell persists in the house after cooking, smoking, or previous renovation work even when the HVAC is off, or the odor comes through the registers when the blower runs.
What it costs in Rockville
Odor removal in Rockville runs $250 to $550 depending on how many rooms are affected and whether the source is in the ducts or the coil.
How we do it
We locate the odor source with a duct camera, clean the affected surfaces, and apply an odor-neutralizing treatment to the coil, plenum, and duct runs while the system is under negative pressure.
UV Light Installation
Signs you need it
You have mold growth on the coil despite regular cleaning, a family member with a documented mold sensitivity, or you want to keep microbial growth off the coil between cleanings in Rockville’s humid climate.
What it costs in Rockville
UV light installation in Rockville runs $600 to $1,100 including the unit, mounting, and electrical connection to the air handler.
How we do it
We mount the UV lamp in the supply plenum above the coil, wire it to operate with the blower, and verify the lamp intensity with a radiometer before documenting the finished installation.
What Air Quality & Sanitizing Costs in Rockville
| Item | Typical range in Rockville |
|---|---|
| Mold treatment | $350 – $800 |
| Odor removal | $250 – $550 |
| UV light installation | $600 – $1,100 |
Rockville’s humid summers mean coil-cleaning intervals are shorter than drier climates, so combining a UV installation with a coil cleaning often costs less than doing them separately. Every price is written before any work starts.
Is the sanitizer you apply safe for pets and children?
We use EPA-registered products applied according to label instructions, and we ask occupants to stay out of the treated zone until the area is dry. Ask us for the product name and SDS sheet before we start – we will provide both.
Will mold come back after treatment?
Mold can return if the moisture source remains, which in Rockville often means an uninsulated duct run in a humid crawlspace. We identify and document that moisture source as part of the job. Call (806) 606-6902 for an assessment.
Brands We Service in Rockville
We work on systems built around Rotobrush, Nikro, and Guardsman equipment, and we keep common replacement parts stocked for the duct and vent configurations we see most often in Rockville’s older subdivisions. Most part replacements happen same-day. See our brands for the full equipment and parts list.
Pricing for Air Duct Cleaning in Rockville, MD
| Service | Typical range in Rockville |
|---|---|
| Dryer vent inspection | $65 – $95 |
| Dryer vent cleaning / lint removal | $130 – $220 |
| Bird guard installation | $75 – $140 |
| Vent rerouting | $360 – $590 |
| Duct sealing (average system) | $450 – $900 |
| Flex duct repair | $200 – $450 |
| Metal duct repair | $350 – $700 |
| Mold treatment | $350 – $800 |
| Odor removal | $250 – $550 |
| UV light installation | $600 – $1,100 |
In Rockville, prices push toward the top of these ranges when we are working on original Twinbrook-era duct systems with rust, disconnected boots, and heavily packed runs. Whatever the scope, you get one written price per system before any panel comes off, and the photo record of every duct run is included, not an upsell.
Neighborhoods We Serve in Rockville
We work throughout Rockville, and our crews know the difference between a mid-century vent run in Twinbrook and a flex-run condo off the Rockville Pike. Typical response time across the Rockville area is one to two business days for non-emergency jobs.
- Twinbrook
- Fallswood
- Woodley Gardens
- Rockville Pike corridor
- West End
Service Area - Cities Near Rockville
Beyond Rockville, our crews regularly serve homeowners in Potomac, MD, Gaithersburg, MD, Montgomery Village, MD, and Olney, MD. Dispatch and scheduling are coordinated from the brand’s Washington, DC office, with local crews serving each Rockville job directly.
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
Most Rockville jobs are scheduled within one to two business days. If you call (806) 606-6902, a live person answers, takes down the details, and gives you a written price before any work begins. We do not use call centers or automated scheduling for Rockville.
In many Twinbrook and Woodley Gardens homes, yes. The main trunk line and several supply runs typically live in the crawlspace, and that is where the rust, disconnected boots, and moisture problems actually are. We document that access in the scope before starting.
Routine duct cleaning, vent cleaning, and most sealing work in Rockville does not require a permit. If a specific job does trigger a requirement, we tell you before any work is scheduled and handle the filing ourselves.
If your ducts have not been looked at since you bought the house, or your dryer has been running slow for months, call (806) 606-6902 for a written price from CleanRun Air Duct Cleaning. Every job includes a documented photo record of the inside of your duct runs, and every price is on paper before the first panel comes off.
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."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.