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 Baltimore
HVAC cleaning in Baltimore runs $380-$680 for a full system on a single air handler, with rowhouses at the higher end because the duct runs are shorter, older, and harder to reach. Coil-only cleaning runs $180-$320, and an air handler with blower runs $240-$410. We schedule most Baltimore jobs within 5-7 business days, and every visit ends with a photo record of the inside of your ducts: before, during, after. Our Baltimore crews know the difference between a 1920s Highlandtown rowhouse retrofit and a 2000s Towson split-level, because the cleaning approach is not the same job. Call (806) 606-6902 for a written price before anyone touches a panel.
Key Takeaways
- Full HVAC cleaning in Baltimore runs $380-$680; coil-only $180-$320; air handler with blower $240-$410.
- Baltimore’s pre-1945 rowhouses have retrofit ductwork that standard rotary brushes can damage. We use camera inspection first, every time.
- Every job includes a Documented Photo Record of every duct run, before and after. You see the work, not a receipt that says “cleaned.”
- The 365-Day Done Right Promise is written on every invoice. If it’s not right, we make it right. No manager approval required.
Why Baltimore Homeowners Choose CleanRun for HVAC Cleaning
Most Baltimore homes were built before forced-air heating existed. That fact drives everything we do here. When a Hampden or Waverly rowhouse got central air in the 1980s, the installer had no mechanical room to work with. They ran flex duct through wall chases, around chimney breasts, and across basement ceilings with clearances measured in inches. That ductwork now carries 30-40 years of accumulation, and it does not respond well to the rotary brush setups most national chains run. Our HVAC Cleaning crews start with camera inspection because we need to see what’s in the run before we touch it. In a Highlandtown rowhouse, our techs found a basement air handler with kinked flex duct squeezed through a party-wall soffit, making standard negative-pressure cleaning ineffective. We used camera inspection to map a 30-year-old vertical supply run, then applied agitation tools and HEPA-filtered source removal, finally sealing crushed sections and cleaning the evaporator coil to restore airflow to the second floor. That’s the job.
CleanRun Air Duct Cleaning is independently owned and operated under the Haven Standard. Tomas Reyes has led the company since 2013, and the rule from day one was simple: a written price before work starts, and a photo record when the crew leaves. Baltimore homeowners research before they call, and we’d rather show you the inside of a duct run than ask you to take our word for it. Our license number is published on the page. Our techs are background-checked, uniformed, and identified by name before they walk in your door. This is Haven Standard Clause 3: Verified Crews. It’s not marketing.
Our HVAC Cleaning Services in Baltimore
Evaporator Coil Cleaning
In Baltimore’s humid climate, the evaporator coil is the first place microbial growth takes hold. Summer relative humidity sits above 65% for weeks at a time, and a coil caked with dust and pet dander in that environment becomes a damp, dark surface. We clean coils with professional-grade equipment from brands like Abatement Technologies and Guardsman, then apply a coil treatment that slows recontamination. In rowhouses where the air handler sits in an unfinished basement, this coil is often the single dirtiest component in the system. A typical evaporator coil cleaning in Baltimore runs $180-$320.
Air Handler Cleaning
The air handler is the box that moves air, and in Baltimore basements it’s also a collection point for construction dust, insect debris, and seasonal pollen from the Bay corridor. We open the cabinet, remove the blower assembly, clean the housing, and document everything with before-and-after photos. If your air handler is original to a 1970s-90s retrofit, expect us to find deterioration in the insulation lining. We’ll show you the photo and give you a written price for any repairs before we touch a thing. Air handler cleaning with blower runs $240-$410 in Baltimore.
Blower Cleaning
A fouled blower wheel moves less air. That’s not an opinion; it’s measurable. When we clean the blower, we remove the assembly, clean the wheel fins individually, and reinstall it balanced. In older Baltimore systems, a dirty blower is often the reason the second floor runs ten degrees warmer than the first. Cleaning it restores static pressure and airflow without changing the thermostat. We handle blower cleaning as part of a full system job or as a standalone service. Expect $200-$350 depending on access.
Condenser Cleaning
Your outdoor condenser in Baltimore works against a specific set of local conditions: cottonwood pollen in late spring, maple and oak pollen in April, and a long stretch of humid heat from June through September. We clean the coil fins with low-pressure water and a coil-safe cleaning agent, then check the refrigerant lines and electrical connections. A condenser that’s never been cleaned runs harder, draws more current, and fails earlier. Condenser cleaning in Baltimore typically runs $150-$280.
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 Baltimore
We work on everything: Honeywell controls, Aprilaire filtration, Guardsman coil treatments, and whatever the previous homeowner’s contractor installed twenty years ago. Baltimore has no dominant HVAC brand because the housing stock is too old for one. We stock common replacement parts locally for Baltimore customers, which means a blower capacitor or a contactor doesn’t turn a cleaning visit into a two-week wait. If we find a failed part during the cleaning, we quote it in writing and wait for your approval. Haven Standard Clause 1: Written Price Before Any Work Starts.
Common HVAC Cleaning Problems We See in Baltimore Homes
- Kinked and crushed retrofit flex duct. In rowhouses where the air handler lives in a tight basement, installers bent flex duct at angles it was never rated for. A rotary brush will snag or tear that 30-year-old material. We camera-inspect every run before choosing tools, and we seal or replace crushed sections found during the clean. That’s not an upsell; it’s the reason airflow was bad to begin with.
- Inaccessible vertical supply runs in wall chases. East Baltimore rowhouses often have supply ducts running from the basement to the second and third floors inside interior wall cavities. No one has ever cleaned them. Our camera inspection maps those runs, and our HEPA-filtered source removal gets decades of debris out without cutting open walls. Pet dander, mold, plaster dust, and the occasional toy all show up in those photos.
- Humidity-driven microbial growth in basement air handlers. A Baltimore basement averages 60-70% relative humidity from May through September. That’s the range where mold grows on dust-covered coils and in fiberglass liner. Cleaning the ducts without addressing the air handler means re-contamination within months. We clean the handler and coil, then recommend a dehumidification strategy specific to your basement.
- Decades of layered debris in original returns. Many Baltimore rowhouses paired new supply ductwork with old return paths through floor cavities and joist bays. Those returns gather a stratified history: lead paint dust from renovations, coal soot if the house predates the boiler conversion, pet hair, and pollen. Camera inspection shows it. Cleaning removes it, and the photo record proves it.
Pricing for HVAC Cleaning in Baltimore, MD
Here are the numbers written down, the way we’d put them on your estimate. A full HVAC cleaning for one system in Baltimore runs $380-$680. That includes the air handler, blower, evaporator coil, all accessible supply and return runs, and the full camera-documented photo record. Coil-only cleaning runs $180-$320. Air handler with blower runs $240-$410. Condenser cleaning runs $150-$280. A rowhouse with a vertical chase that requires extended agitation access may land at the upper end of the full-system range. Newer homes in Towson or Parkville with standard trunk-and-branch ductwork typically land lower. You get the written price before we start, and the price doesn’t move unless you approve a change in writing. If you have a competitor’s quote, bring it. We’ll put our number next to it, in writing, for free.
We Also Serve Cities Near Baltimore
Our Baltimore crews work the whole metro area, including Catonsville, Dundalk, Parkville, and Towson. If you’re outside the city line, the pricing above still applies; travel doesn’t change the written estimate. Call (806) 606-6902 and tell us your neighborhood. Our HVAC Cleaning in Baltimore team covers the city itself, and we schedule by zip code to keep drive times predictable.
Serving Baltimore, MD - Our Local Coverage Area
We’re based in the Baltimore 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 Baltimore
Because the ductwork was never designed. Baltimore’s 70,000-100,000 rowhouses were built between 1880 and 1945 with radiators or steam heat and no original ductwork. Forced-air retrofits crammed flex duct through basements, soffits, and wall chases that were never meant to carry air. Those runs are shorter, tighter, and harder to clean than the trunk-and-branch systems in newer homes. They accumulate debris faster and hold it longer. A standard rotary brush can’t safely clean a kinked 1987 flex run. Our camera inspection tells us what’s actually in there before we choose tools. Call (806) 606-6902 and ask for the camera-inspection-first protocol.
Yes. Vertical supply runs hidden in rowhouse wall chases are common in Highlandtown, Greektown, and similar blocks, and they’re exactly why camera inspection is non-negotiable for us. We run the camera up the chase, see what’s accumulated, then use HEPA-filtered source removal with agitation tools to dislodge and extract debris. If the run is too damaged to clean, we’ll tell you and quote a repair or sealing option in writing. You don’t pay to find out. The estimate is free and so is the second opinion on any competitor’s written quote.
Baltimore sits at the northern end of the Chesapeake Bay in a humid subtropical climate, so average relative humidity stays above 65% through summer. That moisture condenses on cool coils and inside air handlers in basement mechanical spaces, and when dust or pet dander is present, microbial growth follows. We clean the coil, the blower, and the handler housing as one job, then apply a coil treatment to slow re-growth. If your basement runs persistently humid, we’ll recommend a dehumidifier sized for the space, because cleaning alone won’t outwork the climate. Call (806) 606-6902 for a written price on air handler plus coil cleaning.
MERV 8 is the right answer for most Baltimore retrofit systems. Higher MERV ratings add static pressure, and in rowhouse ductwork that’s already bent, squeezed, and undersized, a MERV 13 filter can choke airflow. If you add a dedicated Aprilaire media cabinet with its own filter slot, you can safely run MERV 11 or 13. We’ll tell you after looking at your system, not before. No guesswork, and no upselling a filter your ducts can’t handle.
Yes, when the camera shows a disconnected or crushed run, we quote a repair in writing and do it only after you approve. Many Baltimore rowhouse systems have supply runs that have been separated for years, dumping conditioned air into wall cavities and pulling basement air into the system. Sealing those leaks is often the single biggest airflow improvement we make on a job. The repair work is covered by the same 365-Day Done Right Promise as the cleaning. Call (806) 606-6902 if you suspect your ducts have leaks, and we’ll put a camera on it.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning, serving Baltimore homeowners with documented HVAC cleaning since 2013.