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 Gaithersburg, MD
Dryer vent cleaning in Gaithersburg addresses a specific problem: homes in Montgomery Village and the surrounding planned communities run their dryers harder and longer through humid shoulder seasons, which accelerates lint packing in vents that were often installed with long, multi-elbow runs. Add the fact that many of these townhomes share walls and attic chases, and a blocked vent becomes more than a nuisance; it becomes a shared-air concern. CleanRun Air Duct Cleaning gives every Gaithersburg customer a written price before any work starts and a photo record of every vent and duct run after. Call (806) 606-6902 for a free written estimate.
Why Gaithersburg Homes Are Different
Gaithersburg sits roughly 500 feet above sea level in the Maryland Piedmont, which means shoulder seasons run cooler and more humid than in Washington, D.C. proper. That humidity finds its way into ductwork, especially in the semi-conditioned attic chases common in Montgomery Village construction. Built out between 1966 and the mid-1980s, Montgomery Village contains thousands of townhomes and garden-style units with original galvanized or early flex-duct runs. We routinely see duct-tape joints that have dried and separated, interior lining that has degraded into loose fibers, and condensation points where mold takes hold during the long summer cooling season.
The Kentlands and Lakelands neighborhoods, built in the 1990s under New Urbanist planning, present a different profile: newer ductwork, but often tighter building envelopes and more complex HVAC layouts. What both housing stocks share is a need for documented work. Gaithersburg homeowners ask to see before-and-after photos because they have heard too many $79 coupon stories. We have photographed every duct run on every job since our first one in 2013, and that has not been a marketing decision; it has been the only way to prove the work.
One more local condition matters. In older Montgomery Village townhome rows, original flex-duct trunk lines were sometimes run through shared attic spaces spanning multiple units. A single mold-contaminated section can affect airflow and air quality across adjoining homes, which occasionally brings HOA coordination into larger duct cleaning jobs. We are comfortable working with associations and property managers, and we document everything so the record is clear for every unit involved.
Our Main Gaithersburg Services
Most Gaithersburg homeowners call us first about two things: the air ducts themselves and the HVAC system that moves air through them. Both are covered by the same written-price, documented-photo standard.
Air Duct Cleaning in Gaithersburg
Whole-system air duct cleaning in Gaithersburg means removing the dust, debris, and biological growth that accumulate in duct runs, plenums, and registers. In older Montgomery Village units, we often find three to four decades of accumulated material in the original runs, much of it settled at elbows and transition points. The job involves negative-pressure extraction with professional equipment, register-by-register documentation, and a clear before-and-after photo record. See Air Duct Cleaning in Gaithersburg for the full service breakdown and pricing.

HVAC Cleaning in Gaithersburg
HVAC cleaning goes beyond the ducts to the blower, coils, drain pan, and heat exchanger. In Gaithersburg’s humid shoulder seasons, evaporator coils collect a biofilm that reduces efficiency and feeds odor problems. We clean the full air-handler assembly with professional equipment, check condensate drainage, and photograph every component we touch. Read HVAC Cleaning in Gaithersburg for details on what is included and what it costs.

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.
Before
AfterDryer Vent Cleaning in Gaithersburg

Dryer vent cleaning in Gaithersburg is preventive work with a measurable payoff. Lint accumulation inside a dryer vent reduces airflow, which forces the dryer to run longer cycles, and in the worst cases creates the conditions for a vent fire. Older Montgomery Village townhomes often have dryer vents that run twenty feet or more through walls and attic chases with multiple elbows, and every elbow is a lint collection point. We clean the entire run from the dryer connection to the exterior termination, and we photograph the inside of the vent before and after so you can see exactly what was removed. This is the same standard we apply to every Dryer Vent Cleaning job, regardless of home age or vent configuration.
Vent Cleaning
Signs you need it
Clothes take more than one cycle to dry, the dryer feels hot to the touch, or you can see lint accumulating around the exterior vent opening.
What it costs in Gaithersburg
Standard dryer vent cleaning in Gaithersburg typically runs $99 to $189, depending on run length and accessibility.
How we do it
We run a rotary brush and HEPA-filtered vacuum through the full vent run, then verify airflow at the exterior termination and photograph both ends.
Lint Removal
Signs you need it
Thick visible lint deposits inside the vent, persistent burning smell during dryer cycles, or a dryer that shuts off mid-cycle on thermal overload.
What it costs in Gaithersburg
Heavy lint removal jobs, where the vent is substantially blocked, generally run $129 to $219 in Gaithersburg.
How we do it
We mechanically agitate compacted lint with a rotary brush, extract it with negative-pressure vacuum, and then run a camera through the vent to document the cleared path.
Vent Rerouting
Signs you need it
The existing vent run is longer than building code allows, passes through an unheated space that causes condensation, or was constructed with flexible foil pipe that is no longer acceptable.
What it costs in Gaithersburg
Vent rerouting in Gaithersburg starts around $250 and runs up to $450, depending on wall penetrations and the new run’s distance.
How we do it
We install rigid metal duct along the shortest safe route to the exterior, seal every joint with metal tape, and provide before-and-after photos of the new run.
Bird Guard Installation
Signs you need it
You hear birds or see nesting material near the exterior vent cap, or you have found bird droppings on the exterior wall below the vent termination.
What it costs in Gaithersburg
Bird guard installation in Gaithersburg typically runs $85 to $140, including the guard and labor.
How we do it
We install a stainless-steel or galvanized guard over the exterior vent termination, secured in place, and photograph the finished installation.
What Dryer Vent Cleaning Costs in Gaithersburg
| Item | Typical range in Gaithersburg |
|---|---|
| Standard vent cleaning | $99 - $189 |
| Heavy lint removal | $129 - $219 |
| Vent rerouting | $250 - $450 |
| Bird guard installation | $85 - $140 |
Every price is a written price, delivered before any work starts. The final number does not move after you approve it.
How often should dryer vents be cleaned in Gaithersburg?
Every 12 months for most households, and every 6 months if you dry more than four loads a week, have a long vent run, or dry pet bedding regularly. Gaithersburg’s humid shoulder seasons make twice-yearly cleaning a reasonable choice for heavy-use homes. Call (806) 606-6902 to schedule.
Does CleanRun clean dryer vents in multi-unit Montgomery Village buildings?
Yes. We clean individual unit vents in townhomes and garden apartments, including units where the vent runs through shared attic or wall chases. We coordinate with property managers when access requires it, and each unit gets its own photo record. Call (806) 606-6902 to discuss your building.
Duct Repair & Sealing in Gaithersburg

Duct repair and sealing in Gaithersburg addresses what cleaning alone cannot. Older Montgomery Village homes frequently have original galvanized or early flex-duct runs with dried-out duct-tape joints, separated transitions, and interior lining that has begun to shed fibers. When the connections between duct sections fail, conditioned air leaks into the attic or wall cavity instead of reaching the registers. The result is higher utility bills and uneven room temperatures, and in Gaithersburg’s humid shoulder seasons, the leaking air creates condensation points that support mold growth. We repair and seal every connection with materials that last, and we photograph before and after so you can see the difference. This is the same standard we apply to every Duct Repair & Sealing job.
Duct Sealing
Signs you need it
Rooms that never seem to reach the thermostat setting, a noticeable dust accumulation around registers, or utility bills that stay high even when you adjust usage.
What it costs in Gaithersburg
Duct sealing in Gaithersburg typically runs $300 to $650 per system, depending on the number of accessible connections and the sealing material required.
How we do it
We locate leaks by pressure testing or visual inspection, then seal each connection with mastic or UL-listed metal tape and photograph the sealed joints.
Flex Duct Repair
Signs you need it
Sagging, kinked, or crushed flexible duct run visible in the attic; unusually warm or cold spots in specific rooms; or visible insulation deterioration around flex duct.
What it costs in Gaithersburg
Flex duct repair in Gaithersburg runs $180 to $450 per run, depending on the length that must be replaced and attic access conditions.
How we do it
We replace the damaged section with new insulated flex duct, connect it to the existing system with proper fasteners and sealant, and photograph the repair.
Duct Insulation
Signs you need it
Condensation on the outside of duct runs during summer, measured temperature loss between the air handler and the register, or crumbling or missing insulation wrap.
What it costs in Gaithersburg
Duct insulation in Gaithersburg ranges from $250 to $600 per run, depending on the run’s length, diameter, and whether old insulation must be removed first.
How we do it
We strip deteriorated insulation, wrap the duct in new closed-cell or fiberglass insulation sized to the duct diameter, seal the seams, and photograph the finished work.
What Duct Repair & Sealing Costs in Gaithersburg
| Item | Typical range in Gaithersburg |
|---|---|
| Duct sealing (whole system) | $300 - $650 |
| Flex duct repair (per run) | $180 - $450 |
| Duct insulation (per run) | $250 - $600 |
Every quote is a written price for the full scope of repair, not an estimate that can drift upward once the panel comes off. Haven Standard Clause 1 applies: written price before any work starts.
Can CleanRun repair ducts without replacing the entire system?
Yes. Most Gaithersburg duct problems are connection failures, sagging flex runs, or damaged insulation, and those can be repaired section by section. Full replacement is only recommended when the duct material itself has failed. Call (806) 606-6902 for a written assessment.
How long does duct sealing take in a Gaithersburg townhome?
Most single-system duct sealing jobs in Gaithersburg townhomes are completed in four to six hours. Larger systems or jobs requiring extensive attic access may take a full day. The written quote will state the expected duration. Call (806) 606-6902 to discuss your system.
Air Quality & Sanitizing in Gaithersburg

Air quality and sanitizing work in Gaithersburg responds directly to the area’s humidity profile. The Piedmont elevation and shoulder-season moisture create condensation inside improperly sealed duct runs, and the long summer cooling season gives biological growth a stable environment. In older Montgomery Village homes with original ductwork, we often find mold amplification inside the runs, and in Kentlands and Lakelands homes with tighter building envelopes, we find that the same tightness traps volatile organic compounds and everyday dust in the interior air. Our sanitizing process is not a spray-and-go. We document every treated surface and provide a full written record. This is the same standard we apply to every Air Quality & Sanitizing job.
Mold Treatment
Signs you need it
Musty odor that gets stronger when the HVAC fan runs, visible discoloration inside duct runs or around registers, or allergy symptoms that improve when you leave the house.
What it costs in Gaithersburg
Mold treatment in Gaithersburg typically runs $500 to $1,000 per system, depending on the extent of the affected area and whether duct cleaning must precede treatment.
How we do it
We clean the affected duct runs with HEPA-filtered extraction, apply an EPA-registered antimicrobial treatment, and photograph the inside of every treated run.
Odor Removal
Signs you need it
Persistent cooking, pet, or smoke odor that does not respond to cleaning, or a stale smell that returns whenever the HVAC system cycles on.
What it costs in Gaithersburg
Odor removal in Gaithersburg runs $300 to $600 per system, depending on whether the source is in the ducts alone or also in the air handler and insulation.
How we do it
We locate the odor source with a camera inspection, clean or replace the affected material, and treat the system with a professional-grade neutralizer.
UV Light Installation
Signs you need it
Recurring mold growth on the evaporator coil even after cleaning, persistent musty odors from the air handler, or a household member with a diagnosed respiratory sensitivity.
What it costs in Gaithersburg
UV light installation in Gaithersburg ranges from $600 to $1,200, including the lamp, mounting, and electrical connection.
How we do it
We mount a UV-C lamp inside the supply plenum or above the evaporator coil using manufacturer-specified hardware, wire it to the HVAC control, and photograph the installation.
What Air Quality & Sanitizing Costs in Gaithersburg
| Item | Typical range in Gaithersburg |
|---|---|
| Mold treatment (per system) | $500 - $1,000 |
| Odor removal (per system) | $300 - $600 |
| UV light installation | $600 - $1,200 |
The written price covers the full scope of the treatment, the documentation, and the follow-up verification we perform after the work is complete.
Is sanitizing safe for children and pets in Gaithersburg homes?
Yes, when done correctly. We use EPA-registered products applied according to manufacturer instructions, with occupancy restrictions stated in writing before the job starts. The written quote includes re-entry guidance. Call (806) 606-6902 with any specific concerns.
How do I know the sanitizing actually worked?
You receive a photo record of every treated surface, a written scope of work that lists each product used, and a verification procedure we run after the treatment cures. The record is part of every Gaithersburg air quality job. Call (806) 606-6902 to discuss a written plan.
Brands We Service in Gaithersburg

We work on systems built around Honeywell, Rotobrush, and Guardsman components, among others, and we keep common replacement parts in local stock for faster turnaround in the Gaithersburg area. Our equipment roster includes professional-grade tools from our brands, so the work is done with machines you can look up independently before you agree to a price.
Pricing for Air Duct Cleaning in Gaithersburg, MD
| Service | Typical range in Gaithersburg |
|---|---|
| Dryer vent standard cleaning | $99 - $189 |
| Dryer vent heavy lint removal | $129 - $219 |
| Dryer vent rerouting | $250 - $450 |
| Bird guard installation | $85 - $140 |
| Duct sealing (whole system) | $300 - $650 |
| Flex duct repair (per run) | $180 - $450 |
| Duct insulation (per run) | $250 - $600 |
| Mold treatment (per system) | $500 - $1,000 |
| Odor removal (per system) | $300 - $600 |
| UV light installation | $600 - $1,200 |
Prices in Gaithersburg push upward when duct runs are long, attic access is tight, or multiple rooms require register-level work. Whatever the final number is, it is a written price you approve before any panel comes off, under Haven Standard Clause 1.
Neighborhoods We Serve in Gaithersburg

We clean ducts and vents throughout Gaithersburg, from the original Montgomery Village sections to the newer Kentlands and Lakelands developments. Scheduling is straightforward and the crew arrives with the written quote already prepared.
- Montgomery Village
- Kentlands
- Lakelands
- Washingtonian Woods
- Quince Orchard
Dispatch and scheduling for Gaithersburg are coordinated from the brand’s Washington, D.C. office, but crews serve Gaithersburg locally, and our technicians can reach most homes in the area within a standard service window.
Service Area - Cities Near Gaithersburg
CleanRun serves Gaithersburg and the surrounding Montgomery County communities, including Montgomery Village, MD, Rockville, MD, Olney, MD, and Germantown, TN. If you live just outside Gaithersburg in one of these areas, the same written-price and documented-photo standard applies.
Serving Gaithersburg, MD - Our Local Coverage Area

We’re based in the Gaithersburg 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 Gaithersburg
Most Gaithersburg homes can be scheduled within a standard service window, with crews dispatched from the Washington, D.C. coordination office. We do not promise same-day service because every job starts with a written price, and that requires a short assessment first. Call (806) 606-6902 to schedule.
Interior duct and vent work inside your own unit generally does not require HOA approval. If your duct run passes through shared attic space or a wall chase serving adjoining units, your HOA may have specific access rules. We coordinate with your management office in those cases.
Yes. We clean ducts, dryer vents, and HVAC components in garden-style apartment units throughout Gaithersburg, including units with vertical chases and shared utility areas. Written pricing and photo documentation apply to every unit, regardless of building type. Call (806) 606-6902 for a written estimate.
For a written estimate on any duct, vent, or air quality job in Gaithersburg, call (806) 606-6902. A live person answers, the price is in writing before any work starts, and the photo record is included on every job.
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 Gaithersburg Customers Say
"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."On time, professional, and explained what the readings meant without talking down to me."
- Warren E."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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