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
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Before
AfterAir Duct Cleaning in Washington, DC
HVAC cleaning in Washington, DC typically runs $380-$780 for a full system, with most row-house retrofits falling in the $450-$620 range due to non-standard duct layouts. We’re CleanRun Duct Repair & Cleaning, and we dispatch crews from our Washington, DC office to homes from Capitol Hill to Petworth every day. Call (240) 255-4519 for a written estimate before any work starts.
Washington’s housing stock makes this work different from almost anywhere else. The late-1800s brick row houses that dominate neighborhoods like Columbia Heights, Bloomingdale, and Eckington were built for radiator heat, then had forced-air systems retrofitted through closet chases and floor cavities during the 1970s-1990s. Those runs sag, kink, and trap debris at rates no modern system matches. Combined with Potomac river-basin humidity that regularly pushes 85-90% in summer, the microbial growth we find inside these ducts is not occasional. It’s predictable. We document every run with before-and-after photos, and every job starts with a written price under Haven Standard Clause 1.
Why Washington Homes Are Different
Washington sits on a tidal marsh where the Potomac and Anacostia rivers meet. Summer dew points routinely hit 70-75°F, and overnight relative humidity frequently exceeds 90%. That moisture doesn’t stay outside. It condenses inside ductwork, especially at the low points where retrofitted flex duct sags between floors.
The row houses from Capitol Hill to Petworth share a common problem: HVAC retrofits ran flex duct through original vertical closet stacks, floor-to-floor. At the floor penetrations, these runs kink and sag. Homeowners call us convinced their system is undersized, when the camera shows a 3-inch debris build-up at the first elbow, or mold blooming where condensate pools in the sag. We’ve found disconnected joints hidden behind plaster that have been blowing conditioned air into wall cavities for years. No permit or HOA review covers what’s inside those chases. The only way to know is to look, and we photograph what we find.
Our Main Washington Services
Washington homeowners call us most often for these three services. Each has its own page with neighborhood-specific detail and pricing.
Air Duct Cleaning in Washington
We clean the full duct network in Washington’s row houses, from the plenum (the distribution box where your furnace connects to the ductwork) through every register. Our crews are trained on the non-standard layouts common in Petworth and Bloomingdale, where duct runs snake through original closet chases with sharp bends and low spots that trap debris. Every job includes a Documented Photo Record of every run, before and after. Air Duct Cleaning in Washington covers full pricing and what we typically find.
Dryer Vent Cleaning in Washington
Dryer vents in Washington’s older brick buildings often run longer than code would allow today, with multiple bends between the laundry closet and the exterior. Lint accumulates at those elbows, and the humidity here makes it cling. We clean the full run from the back of the dryer to the exterior termination, with before-and-after airflow readings. Dryer Vent Cleaning in Washington has the details.
Duct Repair & Sealing in Washington
Disconnected joints, sagging flex duct, and failed seals are routine in retrofitted Washington systems. We repair or replace damaged sections and seal the full network with mastic and metal tape, then test for leakage. The photo record shows every repair. Duct Repair & Sealing in Washington explains our process 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.
Before
AfterHVAC Cleaning in Washington
HVAC cleaning in Washington means working on systems that were never designed for the houses they serve. The evaporator coil, blower, and air handler in a Capitol Hill row house are often crammed into a converted closet or basement corner with access so tight the filter gets skipped for years. Meanwhile, the humidity loads these components with microbial growth that standard duct cleaning alone won’t address. We clean the full mechanical system, not just the ducts, and every step is photographed. For the full scope of what this service includes, see our HVAC Cleaning page.
Evaporator Coil Cleaning
Signs you need it
Ice buildup on the refrigerant lines, weak airflow from registers, or a musty smell when the AC first cycles on.
What it costs in Washington
Evaporator coil cleaning in Washington typically runs $180-$340, with tighter-access row-house installations at the higher end.
How we do it
We remove the coil cabinet access panel, apply foaming cleaner to both sides of the aluminum fins, 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 between floors, or dust blowing from registers immediately after filter changes.
What it costs in Washington
Blower cleaning in Washington ranges from $150-$280 depending on whether the squirrel-cage assembly requires full removal.
How we do it
We power down the unit, remove the blower assembly, clean each blade and the housing with compressed air and solvent, balance the assembly, and reinstall with torque-checked fasteners.
What HVAC Cleaning Costs in Washington
| Item | Typical range in Washington |
|---|---|
| Evaporator coil cleaning | $180-$340 |
| Blower cleaning | $150-$280 |
| Full HVAC system cleaning (coil, blower, air handler) | $380-$780 |
How often should HVAC cleaning be done in Washington?
Every 3-5 years for most Washington homes, but row houses with retrofitted ducts and high humidity may need coil and blower attention every 2-3 years. Call (240) 255-4519 and we’ll assess your system.
Can HVAC cleaning fix weak airflow in my row house?
It can if the restriction is debris or microbial growth on the coil or blower, but not if the duct itself is kinked or disconnected. We inspect both and show you the photos before quoting any work.
Air Quality & Sanitizing in Washington
Air quality and sanitizing in Washington addresses what the humidity creates inside retrofitted ductwork. The same sagging flex duct that traps debris also pools condensate, and by the time homeowners smell it, the camera shows mold or biofilm at the low point. We treat the source, not the symptom, and we document the condition before and after. For the full protocol, see our Air Quality & Sanitizing page.
Mold Treatment
Signs you need it
A musty or earthy smell when the system runs, visible black or green growth at registers, or allergy symptoms that worsen at home.
What it costs in Washington
Mold treatment in Washington ranges from $280-$550 depending on the extent of growth and whether multiple duct runs are affected.
How we do it
We apply an EPA-registered antimicrobial through the full duct network at fogging pressure, let it dwell per manufacturer spec, then extract residue with negative-pressure equipment and photograph every treated run.
UV Light Installation
Signs you need it
Recurring mold despite cleaning, persistent odors, or a household member with respiratory sensitivity.
What it costs in Washington
UV light installation in Washington runs $320-$580 for a properly sized unit with installation in the supply plenum.
How we do it
We size the lamp to your air handler CFM, mount it in the supply plenum with a sight glass for future inspection, wire to a dedicated 120V circuit, and show you the installation photo.
What Air Quality & Sanitizing Costs in Washington
| Item | Typical range in Washington |
|---|---|
| Mold treatment | $280-$550 |
| UV light installation | $320-$580 |
| Full air quality package (treatment + UV) | $520-$980 |
Is mold in ducts common in Washington?
Yes. The combination of retrofitted ductwork with low spots and 90% summer humidity makes microbial growth routine, not rare. We find it in roughly half the row houses we inspect in Petworth and Eckington.
Does UV light actually prevent mold?
It suppresses growth on the coil and in the plenum by breaking down DNA at the cellular level, but it won’t fix standing water or a disconnected duct. We install it as part of a complete assessment, not a standalone fix.
Brands We Service in Washington
We stock parts and service equipment from Honeywell, Aprilaire, and Abatement Technologies, with Guardsman antimicrobial products available for treatment jobs. Most common components are on the truck, so Washington jobs rarely wait for parts. See our brands for the full roster.
Pricing for Air Duct Cleaning in Washington, DC
| Service | Typical range in Washington |
|---|---|
| Air duct cleaning (whole system) | $320-$580 |
| Dryer vent cleaning | $120-$220 |
| Duct repair & sealing | $280-$650 |
| Evaporator coil cleaning | $180-$340 |
| Blower cleaning | $150-$280 |
| Full HVAC system cleaning | $380-$780 |
| Mold treatment | $280-$550 |
| UV light installation | $320-$580 |
| Full air quality package | $520-$980 |
What pushes price up in Washington: tight access in converted closet chases, multiple floor penetrations requiring extra hose runs, and microbial growth requiring extended treatment time. What doesn’t change: Haven Standard Clause 1 means you get a written price before any work starts, every time, with no per-vent add-ons or post-arrival surprises.
Neighborhoods We Serve in Washington
Our crews work the full District, with same-week scheduling typical for these areas and most others inside the Beltway. We know the row-house layouts, the retrofit patterns, and the access challenges each presents.
- Capitol Hill
- Columbia Heights
- Petworth
- Bloomingdale
- Eckington
Service Area - Cities Near Washington
We coordinate dispatch from our Washington, DC office and serve the full metro area. Our primary Washington pages cover Air Duct Cleaning in Washington, Dryer Vent Cleaning in Washington, and Duct Repair & Sealing in Washington in detail. Call (240) 255-4519 to confirm coverage for your address.
Serving Washington, DC - Our Local Coverage Area
We’re based in the Washington 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 Washington
No permit is required for standard duct cleaning or HVAC maintenance in Washington. Only structural modifications to ductwork or electrical work beyond a UV light connection require permitting through DCRA. We handle any necessary documentation for work that crosses that line, and we tell you before quoting if it applies.
Most Washington neighborhoods see availability within 3-5 business days. We don’t manufacture urgency. When you call (240) 255-4519, we offer the next available slot that works for your schedule, with a 2-hour arrival window and technician name sent by text the morning of.
Yes. We’ve cleaned ducts in Washington co-ops with building-managed HVAC and in row-house associations with shared wall cavities. We coordinate access with building management when needed, and we carry the insurance documentation most DC buildings require. Ask when you call and we’ll confirm what’s needed for your specific building.
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 Washington 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."Thorough job on the ducts and the dryer vent. Left the house clean and the paperwork was clear."
- Rafael I."On time, professional, and explained what the readings meant without talking down to me."
- Warren E.