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 Wilmington
HVAC cleaning in Wilmington, MA means dealing with older ductwork that was retrofitted into homes never designed for forced air. Most of the pre-WWII rowhouses on the East Side, West Side, and in Forty Acres got central air added in the 1950s, 60s, and 70s, and those ducts are now 50 to 75 years old. Debris builds faster in those non-standard runs than in any modern system. We inspect every run with a camera before and after, show you what’s actually inside, and clean it properly with negative-pressure extraction. That’s the only honest way to do this work. Call (806) 606-6902 for a written quote before any work starts.
Why CleanRun Air Duct Cleaning Is Wilmington’s Preferred HVAC Cleaning Company
Wilmington homeowners don’t call us because we’re the only option. They call us because we document everything. Before a single panel comes off, you get a written price under Haven Standard Clause 1, and after the job, you get a photo record of every duct run, before and after. No other company serving Wilmington does that as a standard deliverable.
Our crews work in Wilmington every week. We know the basements on the East Side with 4 feet of headroom and dirt floors that flood every few years. We know the Trolley Square Victorians with three-story duct chases that haven’t been opened since the 1930s. Tomas Reyes, who leads our team, has built CleanRun around a simple principle since 2013: show the customer what’s in their ducts, write the price down, and stand behind the work. The 365-Day Done Right Promise is in writing on every job. If it’s not right, we make it right. That’s not marketing language. It’s in the contract.
We’ve served more than 52,000 homes since 2013, every single one with a written price before work started and a documented photo record when the crew left. That’s the standard in Wilmington, too.
Our HVAC Cleaning Services in Wilmington
Evaporator Coil Cleaning
The evaporator coil sits above your furnace or inside the air handler, and in Wilmington it’s usually caked with a paste of dust and river humidity. A dirty coil forces your system to run longer to hit the same temperature, which means higher electric bills on top of poor air quality. We pull the coil, photograph it, and clean it with professional-grade cleaners rated for aluminum and copper fins. A typical evaporator coil cleaning in Wilmington runs $240-$420 depending on access and how much buildup has hardened on the fins.
Air Handler Cleaning
In Wilmington’s rowhouse basements, the air handler is often squeezed into a corner behind the old coal chute, which means most homeowners never see the inside of it. We open it up, document what’s there with photos, and remove the accumulated dirt, hair, and debris that gets pulled through the return side. On homes near the Brandywine Creek, we routinely find mildew staining on the blower housing itself. Air handler cleaning in Wilmington typically costs $280-$460.
Condenser Cleaning
The condenser is the outdoor unit, and in Wilmington’s older neighborhoods it’s usually tucked into a narrow side alley or against a brick wall where cottonwood, leaves, and dirt collect against the coil fins. A clogged condenser drives up head pressure and shortens compressor life. We clean the coil fins, straighten what we can, and photograph the before and after so you can see the difference. Condenser cleaning in Wilmington runs $180-$320.
Heat Exchanger Cleaning
In forced-air systems retrofitted into pre-WWII homes, the heat exchanger often carries decades of dust that bakes on every heating season. That layer insulates the metal, reduces heat transfer, and in some cases contributes to that dusty smell when the furnace first kicks on in October. We clean the accessible surfaces of the heat exchanger and document what we find. In Wilmington, heat exchanger cleaning typically costs $200-$380, but if the exchanger is cracked or failing, we’ll stop and tell you rather than cleaning around a safety problem. A cracked heat exchanger can put carbon monoxide into your living space, and no cleaning fixes that. That’s a replacement conversation, and we’ll show you the photos to prove what we found.
Coil Treatment
After cleaning, we apply a coil treatment that helps prevent microbial growth on surfaces that stay damp through Wilmington’s humid summers. This matters more in Riverside and South Wilmington, where basement moisture is a year-round fact of life. The treatment also helps keep dust from re-adhering to the coil for a longer stretch between cleanings. Coil treatment in Wilmington is $120-$200 as part of a full HVAC cleaning, and it’s included in our recommendations when the photos show early mildew formation.
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 Wilmington
We service and clean all major HVAC equipment brands, including Honeywell controls, Rotobrush air systems, and Guardsman coil treatments. Our trucks carry common replacement filters, gaskets, and coil treatment products so we don’t have to leave your Wilmington job half-finished and come back a week later for a part. When we run into equipment from manufacturers like Carrier, Trane, Lennox, or Goodman in Wilmington homes, we work on it the same way: document, clean, photograph, and stand behind the result. We also carry professional-grade inspection equipment from Nikro, which lets us see inside duct runs that haven’t been opened since the last retrofit.
Common HVAC Cleaning Problems We See in Wilmington Homes
- Corroded galvanized ducts in pre-WWII basements. The original basement elbows in East Side and West Side rowhouses often show pinhole rust-through after 60 to 70 years of river-corridor humidity. Those pinholes pull damp basement air into the supply side, which means cleaning alone never fixes the musty smell. The metal has to be sealed or replaced.
- Collapsed flex duct jammed into 1950s-era chases. When forced-air was added to Forty Acres rowhouses, installers often used what was cheapest at the time, which meant flex duct squeezed behind plaster walls where it now sags and collapses. Homeowners usually notice the second floor losing airflow, not the duct problem. Our camera finds it in ten minutes. A tech who skips the camera just keeps cleaning a system that’s already broken.
- Mildew-smelling return plenums in Riverside and South Wilmington. Many of those basements sit on original dirt floors or uninsulated slabs. Even after a NADCA-standard cleaning, condensation re-forms on the return box within weeks because the plenum itself is cold and unsealed. The fix is sealing the plenum, not just cleaning the ducts.
- Oversized duct chases in Trolley Square and Brandywine Village Victorians. Those 1920s conversions have multi-story chases that were built for gravity heat and later filled with undersized supply runs. Debris collects in the dead spaces, and a standard residential cleaning doesn’t touch them. We map the runs, photograph the dead ends, and tell you what’s actually reachable and what isn’t.
Pricing for HVAC Cleaning in Wilmington, MA
A complete HVAC cleaning in Wilmington typically runs $550 to $950 for a single-system rowhouse, depending on how many duct runs there are, how accessible the basement is, and whether the plenum and return box need sealing. That’s a whole-system written price, not a per-vent teaser. We don’t do per-vent pricing because it’s how this industry hides the real cost. Under Haven Standard Clause 1, you get the full written price before any panel comes off. Evaporator coil cleaning runs $240-$420, air handler cleaning $280-$460, condenser cleaning $180-$320, and heat exchanger cleaning $200-$380. If you already have a written estimate from another company, bring it to us and ask for a Free Second Opinion. We’ll put our number next to theirs in writing, and you’ll see the difference before you sign anything. Call (806) 606-6902 for a written quote.
We Also Serve Cities Near Wilmington
Our Wilmington crews regularly cover homes in Burlington, Reading, Tewksbury, and Billerica, and we bring the same written-price standard to every one of those towns. If you’re in Wilmington, we’re already local. If you’re one town over, we’ll still show up with a camera, a written quote, and a documented record of what we find.
Serving Wilmington, MA - Our Local Coverage Area
We’re based in the Wilmington 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 Wilmington
The smell comes from condensation forming on the metal return box in your basement, and that’s almost always because the plenum sits on a dirt floor or uninsulated slab and the metal stays cold through the summer. Wilmington’s river-corridor humidity makes it worse, especially in Riverside and South Wilmington. Cleaning the ducts doesn’t fix the source. The plenum has to be sealed and insulated. Call (806) 606-6902 and we’ll photograph what’s happening inside your return box so you can see it before you pay for anything.
Yes, but it’s slower work and requires tools sized for tight access. We’ve cleaned supply trunks in basements where our techs work on their knees the whole time. The camera inspection tells us which runs are reachable, and we photograph everything we clean and everything we can’t reach so you know exactly what happened. In one Forty Acres rowhouse, our camera found a crushed 6-inch galvanized supply trunk where the original coal chute had been sealed over. After source removal with agitation tools and negative pressure, we sealed the disconnected run and rebuilt the return plenum, which smelled of mildew from decades of Brandywine Creek humidity. That’s the difference between cleaning and actually fixing the system.
No, and we’ll tell you that before we take the job, not after. Those old gravity-heat chases were built with dead spaces that collect debris for decades, and a standard cleaning only covers the runs that are actively connected. We map the chases with a camera, document the dead ends, and tell you what’s reachable and what would require opening a wall to access. Then we give you a written price for the cleaning we can do and explain what wouldn’t be worth doing. You’ll know exactly what you’re paying for.
Walk down to the basement and look at the ductwork. If you see large, rectangular galvanized trunks with rounded corners or old round registers in the floors that are 8 to 12 inches across, those are gravity-heat leftovers. Forced-air retrofits in Wilmington’s pre-WWII rowhouses usually ran smaller supply lines through the old coal-chute openings or along basement ceilings with sharp elbows, and the metal is often a mix of original and added sections. Our camera inspection will show you exactly how the system was cobbled together and where the debris is sitting.
Yes, in most cases. Floodwater that reaches the basement gets into the return boxes, the blower housing, and the insulation inside the duct runs. Cleaning alone won’t remove moisture trapped in the plenum, and that’s where mold colonizes. We recommend a full inspection with photos, a cleaning with antimicrobial treatment on the affected surfaces, and in many cases plenum sealing or replacement of water-damaged flex runs. Before you agree to anything, we’ll show you the inside of your ducts on camera. Call (806) 606-6902 for a written quote and a documented record of what we find.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning, serving Wilmington since 2013.