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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AfterFast, Reliable HVAC Cleaning Across Dundalk
HVAC cleaning in Dundalk, MD typically runs $400-$850 for a full system depending on home size and contamination level, and most jobs are completed in a half day. Dundalk’s housing stock works against you here: homes built between the 1920s and 1950s for Bethlehem Steel’s Sparrows Point workforce carry a distinct industrial-era particulate layer inside their ductwork that newer subdivisions simply don’t have. Our crews know exactly what that looks like, and we document every run with before-and-after photos so you can see what came out. Call (806) 606-6902 for a written price before any work starts.
Why CleanRun Air Duct Cleaning Is Dundalk’s Preferred HVAC Cleaning Company
Dundalk homeowners call us because we don’t do vague. We put a written price in your hand before a single panel comes off, we photograph the inside of every duct run before and after, and we stand behind the work with a 365-Day Done Right Promise in writing, not just in a brochure. Tomas Reyes founded CleanRun in 2013, and the operations standard he built, the H.A.V.E.N. Standard, applies to every job in Dundalk the same way it does everywhere else we work. Our technicians are background-checked, uniformed, and identified by name before they walk through your door.
We coordinate scheduling from our Baltimore office, so a Dundalk crew can be at your home on Wise Avenue, North Point Boulevard, or anywhere in 21222 without a long dispatch wait. We know the tight crawlspaces under Cape Cods near the Patapsco, the rowhouse duct stacks near Heritage Park, and the galvanized sheet-metal systems retrofitted into 1940s worker bungalows in Old Dundalk. That local knowledge means we arrive knowing what to expect, not figuring it out at your expense.
Our HVAC Cleaning Services in Dundalk
We clean the entire forced-air path, not just the visible register openings. In Dundalk’s older homes, the coil and blower are usually the worst offenders, caked with fine particulate that’s been recirculating for decades. Here are the services our Dundalk crews perform most often.
Evaporator Coil Cleaning
The evaporator coil sits inside your air handler and pulls moisture out of the air as it cools, which makes it a magnet for the fine iron oxide dust common in Dundalk homes. When that coil is coated in gray sludge, your system works harder, cools less, and circulates contaminated air every cycle. We clean the coil in place where possible, or pull it for a deeper clean when the buildup demands it, then show you the photo record of what came off.
Air Handler Cleaning
Your air handler is the box that houses the blower and coil, and in Dundalk it’s often tucked into a low attic or crawlspace where humidity from the Patapsco and Back River has been feeding mold growth for years. We vacuum the cabinet interior, clean the blower housing, sanitize where appropriate, and document the entire interior before and after. If the drain pan is holding water or the cabinet insulation is deteriorating, we note that in the written scope so you know what you’re dealing with.
Blower Cleaning
The blower wheel pushes conditioned air through every run in your home, and in Dundalk’s industrial-legacy houses it’s often packed with a fine, dark particulate that ordinary filter changes never touch. A dirty blower moves less air, shortens motor life, and keeps recirculating whatever’s in the ductwork. We pull the blower assembly, clean each blade, and reassemble with the photo record included in your job file.
Condenser Cleaning
The condenser is the outdoor unit, and Dundalk’s location between two tidal rivers means salt-laden humidity, tree pollen, and cottonwood fibers collect on the coil fins fast. We clean the coil, check for fin damage, and clear the housing so the unit can reject heat properly. A clean condenser means a cooler home with less strain on the compressor when those July humidity spikes settle over east Baltimore County.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
BeforeAfterTrusted Brands We Service in Dundalk
We clean and service HVAC systems built around Honeywell controls, Aprilaire filtration, and Guardsman treatment products, along with air handlers and condensers from every major manufacturer serving Dundalk. If your system has an Aprilaire media filter housing or a Honeywell thermostat wired into the air handler, our techs know those platforms and clean around them without disrupting your settings. For homes with older galvanized ductwork, we’ve also used Abatement Technologies HEPA filtration during negative-pressure extraction in Dundalk crawlspaces, which matters when the debris is fine iron oxide rather than ordinary household dust. You can look up every brand we use before you agree to a price; we publish the equipment roster for a reason.
Common HVAC Cleaning Problems We See in Dundalk Homes
- Iron oxide and coke particulate in the ductwork. Homes near the old Sparrows Point footprint regularly show a metallic-gray residue inside supply runs, a signature of decades of steel mill fallout through leaky joints. Standard vacuum-only cleaning leaves this fine particulate suspended. We use negative-pressure extraction with HEPA filtration to pull it out of the air, not just off the duct walls.
- Deteriorating mastic tape on galvanized seams. Dundalk’s 1960s-era forced-air retrofits were sealed with tape that’s now brittle and peeling, letting crawlspace air and humidity into the system. We find this on almost every pre-1970 Cape Cod we service, and we document it during the camera inspection so you can see the gaps before we reseal.
- Shared wall systems in rowhouses and attached homes. Dundalk’s dense rowhouse blocks mean adjacent units often share a chase or plenum space, and one neglected system can push debris into a neighbor’s supply registers. We inspect beyond the single unit when your home shares a wall, because treating only half the path solves nothing.
- Humidity-driven mold in crawlspace return runs. The Patapsco to the southwest and Back River to the northeast keep Dundalk’s ground moisture high, and older crawlspace return ducts absorb that humidity through unsealed seams. The result is a musty smell that persists even after a basic cleaning. We address the source, not just the symptom.
Pricing for HVAC Cleaning in Dundalk, MD
We publish real prices because Dundalk homeowners deserve to know the number before the van shows up. A full HVAC cleaning on a typical Dundalk rowhouse runs $400-$550. A 1940s Cape Cod with a crawlspace system and heavy iron oxide buildup typically lands between $550-$700. Larger homes with multiple air handlers or severe mold remediation requirements can reach $850. The written price covers the entire system, not a per-vent fee that grows once the technician is inside. What affects the cost: system size, contamination level, accessibility of the air handler, and whether duct sealing or coil removal is required. You’ll see the full written price under Haven Standard Clause 1 before any work begins. Call (806) 606-6902 and we’ll put the number in writing for your specific system.
We Also Serve Cities Near Dundalk
CleanRun’s HVAC Cleaning crews cover Dundalk and the surrounding east Baltimore County corridor. If you’re in Essex, Middle River, Baltimore, or Glen Burnie, the same written-price policy and documented photo record apply. Dundalk remains our core service area, and we schedule nearby work alongside Dundalk jobs to keep turnaround tight.
Serving Dundalk, MD - Our Local Coverage Area
We’re based in the Dundalk 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 - HVAC Cleaning in Dundalk
Yes, and that’s exactly the situation our HVAC Cleaning process is built for. Cleaning alone stops the recirculation, but without resealing those gaps, the contamination returns. We clean the full system, camera-inspect every run, then reseal the accessible joints so the crawlspace air and any residual particulate stay out. The photo record shows you the before and after on every run, including the gap locations. Call (806) 606-6902 and we’ll give you a written price for your specific system.
It shouldn’t, and if it does, that’s a sign something was done wrong. In Dundalk’s attached rowhouse blocks, adjacent units sometimes share a chase or plenum space, and a careless cleaner working without proper negative-pressure containment can push debris from your system into your neighbor’s run. We set up the extraction equipment so air flows one direction, out of your system and into the HEPA filtration, not into the shared wall cavity. If we find a cross-connection during the camera inspection, we note it in the written record so you and your neighbor know what exists. Call (806) 606-6902 for a written price.
You’re likely smelling mold or mildew in the crawlspace return runs, not debris in the supply ducts. Dundalk’s position between the Patapsco and Back River keeps ground humidity high, and older bungalows with unsealed return ducts draw that damp air through the system. A basic supply-duct cleaning wouldn’t touch that. We camera-inspect the return side, the plenum, and the air handler cabinet, then clean and sanitize where the growth actually is. You’ll see the photo record of what we found, not just a receipt that says the ducts were cleaned. Call (806) 606-6902 for a written price.
We can, but we’ll be straight with you: cleaning only your section of a shared stack gives you a temporary fix. Lint from units above or below can push back into your run because the stack itself is obstructed. We’ll clean your accessible portion and document the condition of the shared section with camera footage, then give you a written record you can take to the building manager or HOA to coordinate a full stack cleaning. We don’t pretend a partial clean solves the problem. Call (806) 606-6902 and we’ll assess your unit’s portion.
The difference is visible and measurable. In Dundalk, our crews routinely pull a fine, dark gray particulate from supply runs, the residue of iron oxide dust and coke emissions that infiltrated homes through leaky 1960s-era ductwork during Sparrows Point’s decades of operation. That contamination layer sits on top of normal household dust, hair, and skin cells, and it’s finer and heavier than what you’d see in Towson or Catonsville, where the housing stock is newer and the air never carried steel mill fallout. The cleaning approach is also different: we run negative-pressure extraction with HEPA filtration because vacuuming alone leaves that fine particulate airborne. Call (806) 606-6902 for a written price on your Dundalk home.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning, serving Dundalk since 2013.