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 Air Duct Cleaning Across Chelmsford
Air duct cleaning in Chelmsford typically costs $450-$950 for a full residential system, depending on home size, duct condition, and whether antimicrobial treatment is needed. Most Chelmsford jobs take 4-7 hours and include a written price before any work starts, not after. If you’re calling from a 1970s colonial off Route 4 or a split-level near Crystal Lake, the system is likely 40-50 years old and the ductwork has never seen a camera. Call (806) 606-6902 and we’ll schedule a walkthrough with a written quote on the table before a single panel comes off.
We work Chelmsford weekly. Our crews know the difference between a 1980s colonial on Steadman Street with original fiberglass liner and a newer build off Route 110 where the ducts were never sized right in the first place. That local familiarity matters when you’re deciding between a cleaning and a repair. We’re Air Duct Cleaning specialists, and we’ve spent enough time in Chelmsford basements to know exactly what we’ll find before we even remove the first register.
Why CleanRun Air Duct Cleaning Is Chelmsford’s Preferred Air Duct Cleaning Company
Every Air Duct Cleaning in Chelmsford job we complete ends the same way: a written price delivered before work starts, and a camera-recorded photo file of every duct run when the crew packs up. That’s been our process since CleanRun was established in 2013, and it’s the reason Chelmsford homeowners who bought their houses during the 2015-2025 market run call us when the previous owner’s deferred maintenance finally shows up in the blower motor.
Tomas Reyes oversees every Chelmsford job, and the standard is simple: if we can’t photograph it, we don’t claim it. No vague “your ducts were dirty” summaries. You get stills showing the 3-inch debris line at the first elbow, the frayed fiberglass liner shedding into the supply trunk, the mold colonization at the return plenum. The written record is yours to keep, and the 365-Day Done Right Promise backs it in writing. If something’s not right a month or a season later, we make it right. That’s not a manager’s discretion clause; it’s the standard we’ve applied to 52,000+ homes.
We answer the phone with a live person, not a call tree. Our technicians arrive in uniform, background-checked, and identified by name before they step inside. For Chelmsford specifically, that means a tech who can tell you why the return trunk in your 1978 split-level is pulling moisture from the crawl space and what that means for the filter you just changed. Local knowledge is part of the job.
Our Air Duct Cleaning Services in Chelmsford
Residential Duct Cleaning
Most Chelmsford homes we service are colonials and split-levels from the 1970s and 1980s, with original sheet-metal trunks and fiberglass liner that’s starting to break down. We clean the full system: supply ducts, return ducts, plenums, registers, and the blower compartment. Negative-pressure extraction with HEPA filtration pulls the debris out rather than brushing it around. For Chelmsford’s older homes, this is rarely a one-visit cosmetic job; it’s the first time the ducts have been properly opened since the house was built.
Video Inspection
Before we recommend any work, the camera goes in. We feed a push-cam through every accessible run and record what we find. In Chelmsford, this is the step that answers the real question: when a 1982 colonial near Heart Pond has standing moisture in the trunk line, is this a cleaning or a replacement? The footage tells us. We deliver those stills as part of the job record, with the problem areas marked and explained in plain language.
Full System Cleaning
A full system clean on a Chelmsford split-level typically means the supply trunk, all branch runs, the return drop, the return trunk, the plenums, and the registers. We run a negative-air machine from Rotobrush or Abatement Technologies to create continuous suction while we agitate and extract debris. After the mechanical clean, we assess whether antimicrobial treatment is needed. Near the ponds, especially in North Chelmsford ranches, it usually is.
Supply Duct Cleaning
Supply ducts carry conditioned air from the furnace to your rooms. In Chelmsford, we often find supply trunks routed through uninsulated basement spaces where condensation from summer humidity settles against the metal, gluing dust into a paste that reduces airflow. We clean each supply run and check for disconnected joints, a common problem in 40-year-old systems.
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 Chelmsford
We run professional-grade equipment from Guardsman, Rotobrush, and Nikro, and we service duct systems regardless of brand or original installer. If your home has a original 1980s Aprilaire humidifier mounted to the supply plenum, we’ll assess it during the cleaning. We keep common replacement parts on the trucks that serve Chelmsford, so a cracked register boot or a failed flex connector doesn’t require a second trip. You won’t see shop-vac equipment in our vans. The tools we use are look-up-able by name before you agree to anything.
Common Air Duct Cleaning Problems We See in Chelmsford Homes
- Degraded fiberglass duct liner in 1970s-1980s colonials. Original liner was never designed to last 40-plus years. When it starts to shed, it sends glass fibers into the living space with every furnace cycle. A cleaning has to address the liner condition, not just vacuum around it.
- Mold colonization in pond-adjacent systems. Homes near Heart Pond, Crystal Lake, or the wetland edges off Route 4 pull ground moisture into crawl spaces and basement trunks. That moisture feeds mold inside the ducts year-round, and a cleaning without antimicrobial treatment just agitates the spores through the house.
- Flood-soaked flex duct in low-lying areas. When storm water or a failed humidifier saturates insulated flex duct, cleaning is not enough. The insulation inside the flex wicks the moisture and holds it. NADCA standards call for replacement in those cases, and we document exactly why with camera footage.
- Blower motors coated in gray paste. Humidity mixed with 45 years of dust produces a fine gray sludge that coats the blower wheel and heat exchanger. We see this on nearly every original split-level system in the 01824 ZIP code. It reduces airflow and forces the furnace to work harder through every heating season.
Pricing for Air Duct Cleaning in Chelmsford, MA
A standard residential full-system cleaning in Chelmsford runs $450-$750 for a typical 2,500-3,500 square foot colonial or split-level. Larger homes or systems with extensive duct runs, multiple zones, or heavy debris loads fall in the $750-$950 range. If antimicrobial treatment is needed, add $150-$300 depending on system size and severity. Duct replacement after water intrusion is priced per run, and that’s a separate scope with its own written quote. Every Chelmsford job gets one flat price for the whole system, agreed in writing before work starts. No per-vent pricing, no add-on surprises. Call (806) 606-6902 and we’ll put a number in front of you.
| Service | Typical Chelmsford Range |
|---|---|
| Full residential system cleaning | $450-$750 |
| Large home / multi-zone system | $750-$950 |
| Antimicrobial treatment (add-on) | $150-$300 |
| Video inspection (standalone) | $125-$225 |
We Also Serve Cities Near Chelmsford
Our crews run Chelmsford jobs weekly and extend the same written-price standard to Lowell, Billerica, Dracut, and Tewksbury. If you’re in a 1970s colonial just across the town line, the process is identical: camera inspection first, written scope second, documented photo record when the job is done.
Serving Chelmsford, MA - Our Local Coverage Area
We’re based in the Chelmsford 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 - Air Duct Cleaning in Chelmsford
Yes, we can tell you definitively, and we’ll show you the camera footage to prove it. The answer depends on what the water touched. Bare sheet-metal trunks that got wet can usually be dried and cleaned, with antimicrobial treatment applied. Insulated flex duct that wicked water is a different story: the insulation holds moisture and cannot be dried in place, so replacement is the only NADCA-compliant fix. We document both conditions with before-and-after camera work so you have a written record for your insurer. Call (806) 606-6902 and we’ll schedule the inspection.
Cleaning removes debris; it does not remove failing liner. If the liner is fraying, it needs to be assessed for replacement, because any mechanical agitation will release more fibers into your living space. In Chelmsford’s older colonials, we frequently find liner that has already degraded to the point where it’s shedding into the supply runs. Our camera inspection shows the extent of it before we touch anything. The choice between repair and replacement is made with the evidence in front of you.
Because the moisture source was never addressed. In North Chelmsford, a ranch built near wetland setbacks often has return and supply ducts routed through damp crawl spaces where ground moisture sees the ductwork as a place to settle. Cleaning the ducts without treating the standing moisture and resealing the runs is a temporary fix. Our Full System Cleaning service in Chelmsford includes a moisture assessment, and when we find the source, we treat it before the duct cleaning begins. Otherwise you’ll be calling us back next spring with the same problem.
Yes. We provide a written report with camera stills showing the water intrusion, the affected runs, the condition of the liner and insulation, and the work we performed. Since 2013, every CleanRun job has included a Documented Photo Record as a standard deliverable, which is exactly the kind of evidence insurers and adjusters respond to. If you need a second opinion on a written estimate from another company, we’ll put our own number next to it in writing, at no cost.
That gray paste is a mix of fine dust, humidity, and often degraded fiberglass from the liner. It tells us the system has been running for decades without a proper cleaning and that moisture has been present at some point. In a 1979 split-level in Chelmsford, we’d expect to find this on the blower wheel and the heat exchanger, and it’s reducing your airflow in measurable ways. The fix is a Full System Cleaning with the blower compartment opened and cleaned, plus a liner assessment to make sure you’re not just re-coating the motor with fibers next season.
Contact CleanRun Air Duct Cleaning in Chelmsford
If you live in Chelmsford and your ducts haven’t been looked at in 20 years, or if you’ve had a water event and need to know whether you’re dealing with a cleaning or a replacement, call (806) 606-6902. We’ll put a written price in front of you before any work begins, and we’ll hand you the photo record when we’re done. That’s how every job has run since 2013, and that’s how it will run in your home.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning, serving Chelmsford.
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