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 Washington, DC
HVAC cleaning in Washington typically runs $380-$620 for a full system, with air quality and sanitizing work adding $180-$450 depending on whether mold, bacteria, or odor treatment is needed. The real challenge in this city isn’t the equipment - it’s the housing stock. Washington’s thousands of retrofitted row houses contain ductwork snaked through voids never designed for air movement, producing debris traps and microbial growth conditions that standard suburban approaches miss entirely. Call (240) 363-3380 for a written estimate before any work starts.
Why Washington Homes Are Different
Washington sits where the Potomac and Anacostia rivers meet the Chesapeake Bay, and summer humidity regularly pushes past 70-80%. That moisture loads the air with water vapor that condenses inside duct runs passing through unconditioned basement crawl spaces and attic chases - especially in Capitol Hill and Petworth row houses where retrofitted supply lines were threaded through old coal-chute voids.
The Wardman-style homes built across Petworth, Columbia Heights, and Brookland in the 1910s-1930s were designed for steam radiators, not forced air. When owners later added central HVAC, installers routed flex duct through wall cavities and floor chases with sharp bends and undersized plenums. We regularly find multi-generational debris: combustion-era soot from original coal or oil systems layered beneath decades of later dust accumulation. These aren’t hypothetical conditions - they’re what the camera shows at the first elbow in roughly half the Washington jobs we document.
Our Main Washington Services
Most Washington homeowners who call us start with one of these three services, each with its own dedicated page and pricing.
Air Duct Cleaning in Washington
Full duct system cleaning for Washington’s retrofitted row houses, with documented photo records of every run and negative-pressure extraction that pulls debris from sharp bends and debris traps standard equipment can’t reach. We account for the irregular routing common in Wardman-style and Capitol Hill homes where ductwork was never part of the original design. Air Duct Cleaning in Washington covers complete pricing and what the photo record includes.
Dryer Vent Cleaning in Washington
Dryer vent routing in Washington’s older masonry buildings often involves long horizontal runs through multiple walls to reach exterior terminations, creating lint accumulation points that shorter suburban vents don’t face. We clean the full run from appliance to termination and document flow readings before and after. Dryer Vent Cleaning in Washington has full details.
Duct Repair & Sealing in Washington
Retrofit ductwork in Washington’s pre-WWII housing stock frequently shows disconnected flex patches, corroded metal at original steam-to-forced-air transition points, and seal failure at plenum joints. We repair and seal with materials rated for the humidity cycling these systems endure. Duct Repair & Sealing in Washington explains the process and 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.
BeforeAfterHVAC Cleaning in Washington
HVAC cleaning in Washington means addressing equipment that works harder than its designers intended. The city’s humidity forces longer cooling seasons, while retrofitted ductwork creates airflow restrictions that strain blowers and coat evaporator coils with debris standard filters don’t catch. Our crews use Rotobrush and Abatement Technologies equipment to clean components that were often squeezed into converted mechanical spaces never meant to house them. For the full scope of what’s included, see HVAC Cleaning.
Evaporator Coil Cleaning
Signs you need it
Ice formation on the coil, water pooling below the air handler, or cooling that can’t keep up during Washington’s July humidity spikes.
What it costs in Washington
Evaporator coil cleaning typically runs $180-$340 depending on accessibility and whether the coil requires removal for thorough cleaning.
How we do it
We access the coil through the plenum, 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 at startup, reduced airflow at registers, or dust streaking on the blower housing visible when the filter is removed.
What it costs in Washington
Blower cleaning and balancing typically costs $140-$280, with higher figures when the blower must be removed from a tight retrofit air handler.
How we do it
We remove the blower assembly, clean blades and motor housing with compressed air and solvent, check amp draw, and rebalance before reinstallation.
What HVAC Cleaning Costs in Washington
| Item | Typical range in Washington |
|---|---|
| Evaporator coil cleaning | $180-$340 |
| Blower cleaning | $140-$280 |
| Full HVAC system cleaning (coil, blower, air handler) | $380-$620 |
How do I know my HVAC system needs cleaning, not just my ducts?
If rooms cool unevenly, the system runs longer than it used to, or you see ice on the coil, the problem is likely in the equipment, not the duct runs. Call (240) 363-3380 - we’ll inspect both and put a written price on what’s actually needed.
Can you clean HVAC components in tight basement spaces?
Yes - we regularly work in Washington’s converted coal cellars and shallow crawl spaces where retrofit air handlers were squeezed in, using portable equipment when standard tools don’t fit. The written price covers the access challenge; we don’t add charges after arrival.
Air Quality & Sanitizing in Washington
Washington’s river-valley humidity creates conditions inside ductwork that dry-climate systems rarely face: condensation on supply runs in unconditioned chases, microbial growth at flex-duct patches, and musty odors that standard cleaning doesn’t remove. Our air quality work targets the biological load that thrives in these conditions, with documented before-and-after photo records showing what was growing and what remains after treatment. For equipment and process details, see Air Quality & Sanitizing.
Mold Treatment
Signs you need it
Visible black or green growth at register openings, persistent musty odor after duct cleaning, or humidity readings above 60% in basement duct runs.
What it costs in Washington
Whole-system mold treatment typically runs $280-$520 depending on colony extent and whether physical removal is needed before chemical treatment.
How we do it
We apply EPA-registered antimicrobial through the duct system, treat affected registers and plenum surfaces directly, and deliver post-treatment photos showing treated areas.
UV Light Installation
Signs you need it
Recurring mold after treatment, chronic allergy symptoms that improve when the system is off, or a system located in a damp basement or crawl space.
What it costs in Washington
UV-C lamp installation near the coil or in the return plenum typically costs $320-$580 including the lamp, housing, and electrical connection.
How we do it
We mount the UV assembly with sight-glass access for annual bulb changes, wire to the blower circuit for automatic operation, and show you the installation before closing the panel.
What Air Quality & Sanitizing Costs in Washington
| Item | Typical range in Washington |
|---|---|
| Mold treatment (whole system) | $280-$520 |
| UV light installation | $320-$580 |
| Bacteria sanitizing with odor removal | $180-$350 |
Will mold come back after treatment?
It can if the moisture source isn’t controlled - we identify and document where condensation forms, and recommend UV installation or dehumidification for chronically damp systems. Call (240) 363-3380 for a written assessment of your specific conditions.
Is the sanitizing chemical safe for children and pets?
We use EPA-registered products applied according to manufacturer dwell times, with the system off during treatment and fully ventilated before restart; the written job record includes the product name and EPA registration number for your reference.
Brands We Service in Washington
We stock parts and service equipment from Aprilaire, Abatement Technologies, Guardsman, and Rotobrush - brands we use on Washington jobs and can source without extended delays. Most replacement components arrive within 24-48 hours for repairs that can’t wait. 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 |
| HVAC cleaning (coil, blower, air handler) | $380-$620 |
| Evaporator coil cleaning | $180-$340 |
| Blower cleaning | $140-$280 |
| Duct repair & sealing | $240-$480 |
| Mold treatment | $280-$520 |
| UV light installation | $320-$580 |
| Bacteria sanitizing with odor removal | $180-$350 |
| Air purifier installation | $400-$850 |
Prices run higher in Washington when ductwork is routed through inaccessible wall cavities requiring camera-guided cleaning, or when multiple generations of debris require extended agitation time. Every job starts with a written price under Haven Standard Clause 1 - no exceptions, no additions after work begins.
Neighborhoods We Serve in Washington
Our Washington crews work across the city’s full residential map, with scheduling coordinated from our DC metro office. Most appointments are available within 3-5 business days, with documentation delivered electronically within 24 hours of job completion.
- Capitol Hill
- Petworth
- Columbia Heights
- Brookland
- Shaw
Service Area - Cities Near Washington
CleanRun’s Washington, DC office dispatches crews throughout the immediate metro area. We do not maintain separate location pages for adjacent jurisdictions; all scheduling and documentation flow through the same DC-based team that handles Washington proper.
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 - residential air duct cleaning does not require a DC building permit. If our inspection reveals duct repairs or modifications that do require permitting, we note this in the written estimate and can recommend qualified contractors for that portion of the work.
Most Capitol Hill and Petworth HOAs require 24-48 hour notice for technician parking or building access; we coordinate directly with your management contact once you provide the details, and our crew arrives with background-check documentation under Haven Standard Clause 3: Verified Crews.
Yes - we regularly clean ductwork in Washington’s designated historic districts, using portable equipment and protective measures for original plaster, millwork, and flooring. The written scope notes any access limitations before work begins.
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."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.