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 Lowell
HVAC cleaning in Lowell, MA typically runs $240-$480 for a full system cleaning, and most jobs are completed in a single visit. That price covers the evaporator coil, blower assembly, air handler, and accessible duct runs, and you’ll receive a written price before any panel comes off. Our crews know Lowell’s housing stock, from the triple-deckers in the Acre to the converted mill lofts along the Pawtucket Canal, and we schedule directly with homeowners, landlords, and condo associations. Call (806) 606-6902 for a free estimate.
Why CleanRun Air Duct Cleaning Is Lowell’s Preferred HVAC Cleaning Company
We’ve cleaned HVAC systems in Lowell long enough to know that every neighborhood has its own set of problems. The dense triple-deckers in Back Central and the Acre behave differently than the mill conversions along the canal, and a coil cleaning that works in a single-family in Pawtucketville won’t solve a shared-stack issue in a three-unit rental. Our techs know the difference, and they document what they find. Every job ends with a photo record of the inside of the system, before and after, and that record is yours to keep.
Lowell homeowners and landlords consistently give us strong reviews for two things: the written price quoted before work starts, and the photos that prove the work actually happened. We’re independently owned and operated under the Haven Standard, and every job is backed by the 365-Day Done Right Promise. If something isn’t right, we make it right. In writing. The crew serving Lowell is background-checked, uniformed, and identified by name before they ever walk through your door.
Our HVAC Cleaning Services in Lowell
Evaporator Coil Cleaning
In Lowell’s canal-adjacent blocks, we usually find evaporator coils caked with a grey, paste-like film that forms when river humidity meets dust and pet dander. A dirty coil doesn’t just smell. It forces the blower to work harder, which means higher electric bills and a system that freezes up in July. We clean the coil in place with professional equipment, then apply a coil treatment that keeps the surface clean longer. In triple-deckers where the coil sits in a closet or attic access, we work around the space without cutting walls.
Blower Cleaning
The blower wheel is the part nobody sees until it’s photographed. In Lowell units with older forced-air conversions, the blower often pulls air through gaps in the return path, dragging in lint, plaster dust, and masonry debris from unsealed chases. We remove the blower housing, clean the wheel and motor, and photograph both sides before reassembly. A clean blower moves more air at lower fan speeds, which matters when your ductwork was retrofitted through 1890s framing.
Condenser Cleaning
Lowell’s condenser units sit outside, often in spaces between triple-deckers where leaves, pollen, and construction grit accumulate against the fins. The Merrimack River valley keeps spring pollen counts high, and we see coils clogged with a layer of cottonwood fuzz and maple seed. We wash the condenser coil, straighten bent fins, and check the refrigerant pressures as part of the cleaning. If your unit sits in a narrow side yard or behind a fence, we bring the equipment to it, not the other way around.
Air Handler Cleaning
The air handler hidden in a converted mill loft or tucked into a third-floor crawl space in a triple-decker is often the dirtiest component in the whole system. We open the cabinet, clean the blower, the coil, the drip pan, and the interior surfaces, then treat the pan with an antimicrobial that slows algae and mold regrowth. In Lowell’s masonry buildings, we also check the condensate line, since those walls absorb moisture and give mold a head start.
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 Lowell
We service and clean HVAC equipment from every major manufacturer found in Lowell homes, including systems from Honeywell thermostats and Aprilaire air cleaners to Guardsman filtration units. For cleaning, we rely on Rotobrush agitation tools paired with HEPA-filtered negative-pressure vacuums, the same equipment used in commercial and industrial duct work. Our crews stock common filters, drain pan tablets, and coil cleaner on the truck, so a Lowell job doesn’t stall waiting on a part. When we recommend a replacement component, we tell you the brand and model, and you can look it up before you agree to anything.
Common HVAC Cleaning Problems We See in Lowell Homes
- Condensation pooling in basement duct runs. Lowell’s canal-adjacent blocks like the Acre and Back Central sit low and close to the river, and uninsulated basement ducts sweat all summer. That standing moisture feeds mold that a register wipe-down never touches.
- Restricted access through masonry walls. Converted mill lofts along the Pawtucket Canal and Boot Mills have ductwork buried inside thick brick walls. Standard cleaning wands can’t reach the full lint pathway, so we use extended agitation tools and register-to-plenum extraction.
- Shared dryer vents in triple-decker stacks. When three units share one dryer vent, every tenant’s lint load affects every other unit. A blocked shared stack is a fire risk for everyone above and below.
- Jury-rigged flex duct with low-point sags. Landlords retrofitting forced-air systems into late-1800s triple-deckers often route flex duct through shared basement utility spaces with poor slope. The sags hold standing water year-round, which is why musty odors cycle through every apartment even after filters are changed.
Pricing for HVAC Cleaning in Lowell, MA
A full HVAC cleaning in Lowell runs $240-$480 for most forced-air systems. Evaporator coil cleaning alone typically runs $145-$230, blower cleaning $110-$180, and condenser coil cleaning $120-$200. Air handler cleaning, which includes the cabinet, drip pan, and blower, typically runs $180-$320. Surface sanitizing for mold on accessible components adds $60-$120. You’ll get one written price for the whole system before work starts, under Haven Standard Clause 1. No per-vent pricing, no bait-and-switch. Call (806) 606-6902 for a free written estimate.
We Also Serve Cities Near Lowell
Our crews serve Lowell and the surrounding Merrimack Valley communities, including Dracut, Chelmsford, Tewksbury, and Billerica. When you call, we’ll confirm your address and schedule a crew that knows the local building stock. HVAC Cleaning is our specialty, and our Lowell customers get the same documented photo record as every other job we run.
Serving Lowell, MA - Our Local Coverage Area
We’re based in the Lowell 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 Lowell
Because the ductwork was never purpose-designed. Lowell’s late-1800s and early-1900s triple-deckers were originally heated with steam or hot-water radiators, and when they were converted to forced air, landlords ran flex duct through uninsulated basement spaces, wall cavities, and closets. Those runs have sharp bends, low-point sags, and no vapor barrier, so river humidity condenses inside them and mold grows fast. Newer construction in Chelmsford or Tewksbury has insulated duct runs with proper slope. Lowell’s retrofit reality means we see mold on nearly every canal-adjacent job. Call (806) 606-6902 for an estimate.
We use extended agitation tools and small-diameter inspection cameras that let us push through the tight access points that standard wands can’t reach. In Lowell’s converted mill buildings along the Pawtucket Canal and Boot Mills, duct runs often travel through thick brick and masonry chases with only a register opening at each end. We don’t cut walls. We work from the register openings and the plenum, pulling debris with negative-pressure extraction. If a run is fully blocked, we’ll show you the camera footage and give you a written scope for whatever needs to happen next.
Yes, sometimes it can. In many Lowell triple-deckers, the return air from one unit passes through a shared basement space or a common stairwell, and cleaning one unit pulls debris from those shared spaces into the process. We always check for shared returns and communal duct segments before starting. If we find shared ductwork, we document it and recommend cleaning the affected segments together, because cleaning one unit alone often won’t stop the cross-contamination. Call (806) 606-6902 and we’ll assess your building’s layout.
A low-point sag in the flex duct holding standing water. In the Acre and Back Central blocks, we regularly find flex duct routed through shared basement utility spaces with insufficient slope. Water condenses in the sag, it doesn’t drain, and every time the blower kicks on, it pushes musty air through every register. A register wipe-down or a filter change won’t touch it. We pull the water and debris out with a Rotobrush agitation tool and HEPA-filtered vacuum, then rebalance the run so it drains properly. The smell doesn’t return if the sag is corrected.
We clean the full stack from the roof or exterior termination point down to each dryer connection, and we document the lint load at each floor. In a Lowell triple-decker, one tenant’s neglected lint load restricts airflow for every unit above and below, and that’s a fire hazard for the whole building. We photograph the vent interior before and after, and we’ll tell you which floor’s dryer is contributing the most lint. If one unit’s dryer vent is crimped or poorly routed behind a wall, you’ll see it in the photo record. Call (806) 606-6902 to schedule a stack cleaning.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning, serving Lowell, MA and the Merrimack Valley. Every job since 2013 has included a written price before work starts and a documented photo record when the crew leaves.