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 Kentfield
Air duct cleaning in Kentfield typically costs $380-$680 for a full residential system and $650-$1,200 for commercial properties, with most jobs completed in a single scheduled visit. We dispatch crews to Kentfield from our San Francisco Bay Area office, and we’ve worked in the fog-collecting valley below Mount Tamalpais long enough to know that ductwork here is a moisture problem before it’s a dust problem. Call (323) 918-4345 for a free written estimate before any work starts.
Our Air Duct Cleaning team serves Kentfield’s mid-century ranch neighborhoods, the wooded hillside streets above Sir Francis Drake Boulevard, and the flat valley floors near College Avenue. We arrive in uniform with shoe covers and drop cloths, run Rotobrush and Nikro equipment with HEPA filtration, and leave a photo of the clean-up before we go. That’s the Cedarwell Care Promise, and it’s how we’ve worked since 2005.
Why Morton’s Air Duct Cleaning Is Kentfield’s Preferred Air Duct Cleaning Company
Kentfield homeowners call us back because we treat their houses like the homes they are, not job sites. We notice the dog bed in the corner and the baby gate at the stairs. Our technicians work quietly during nap hours, use pet-safe products where available, and never start a job without a written price that both of us have agreed to.
We’ve built our reputation in Marin County one visit at a time. Kentfield customers specifically mention our thoroughness in reviews, the photo proof we leave behind, and the fact that a live person answers the phone 24/7, not a voicemail tree. Our crews know the local housing stock, the original sheet-metal ductwork running through damp crawl spaces, and the way bay laurel pollen coats return grilles each spring. That local knowledge means we diagnose problems faster and fix them at the source instead of selling a fogging treatment that masks the symptom.
Every job carries our 365-Day Done Right Promise. If something isn’t right, we make it right. No argument, no runaround.
Residential Air Duct Cleaning in Kentfield
Residential Air Duct Cleaning in Kentfield means source removal of debris, pollen, and microbial growth from the entire forced-air system, not just vacuuming the vent covers. A typical Kentfield home runs $380-$680 depending on system size, accessibility, and whether the original 1950s ductwork needs extra attention for moisture damage. Most ranch and California craftsman homes in Kentfield were built with sheet-metal runs through unconditioned attics and crawl spaces that stay cooler and wetter than equivalent homes in San Rafael or Corte Madera.
We start with a video inspection so you see what we see. Then we set up negative pressure at the air handler, run mechanical agitation tools through every supply and return branch, and capture dislodged debris through HEPA filtration at the exhaust point. No debris enters your living space during the process.
Supply Duct Cleaning
Supply ducts push conditioned air into your rooms, but in Kentfield’s humid crawl spaces they also collect condensation that feeds mildew colonies. We clean the full supply trunk and each branch line from the air handler to the register, inspecting for rust, gaps at seams, and insulation damage that lets moisture in.
Return Duct Cleaning
Return ducts pull air back to the system, which means they concentrate whatever is in your home. In hillside Kentfield neighborhoods, that often means sticky bay laurel pollen and oil mixed with redwood duff and household lint. We remove this binding layer mechanically so your system breathes freely again.
Commercial Air Duct Cleaning in Kentfield
Commercial Air Duct Cleaning in Kentfield serves the small professional offices, medical practices, and retail spaces along Sir Francis Drake Boulevard and College Avenue, with typical projects running $650-$1,200 depending on square footage and system complexity. Commercial jobs follow the same source-removal protocol as our residential work, scaled to larger rooftop units and multi-zone systems, with scheduling arranged to minimize disruption to your business hours.
We work with property managers and business owners to phase the job around your operations. Our crews arrive prepared, work efficiently, and leave documentation of the cleaning scope and any mechanical issues we observed.
Full System Cleaning
A full commercial cleaning covers supply and return ductwork, air handler cabinets, coils, and registers. For Kentfield’s older commercial buildings with original ductwork, we pay special attention to moisture intrusion points where the valley’s persistent fog has degraded seals and insulation over decades.
Video Inspection
We record before-and-after footage on every commercial job. You see the condition of your duct interiors, understand why we recommend specific work, and have proof of completion for maintenance records or lease compliance.
Trusted Brands We Service in Kentfield
We clean and maintain systems with equipment from Rotobrush, Nikro, and Abatement Technologies, brands chosen because they perform under the demanding conditions Kentfield’s humidity creates. Rotobrush’s mechanical agitation heads scrub duct walls without damaging aging sheet metal. Nikro’s HEPA-filtered negative air machines capture particles down to 0.3 microns, critical when we’re removing mold spores and bay laurel pollen. Abatement Technologies supplies containment and filtration accessories we use on jobs where microbial contamination is extensive. We stock common parts and fittings for faster turnaround on repairs we discover during cleaning, so Kentfield customers aren’t left waiting while we order from a warehouse across the state.
Common Air Duct Cleaning Problems We See in Kentfield Homes
- Mildew bloom in uninsulated crawl-space runs. Kentfield’s valley position traps marine fog and keeps crawl-space humidity elevated year-round. Condensation forms on cold duct metal, and within a season or two, a visible mildew film develops that no amount of household dusting will reach.
- Bay laurel pollen coating return grilles. The dense canopy above Sir Francis Drake Boulevard releases fine, sticky pollen each spring that infiltrates return-air pathways, binds with lint and redwood duff, and creates a residue that restricts airflow and triggers allergies.
- Decomposed leaf litter blocking exterior vents. Kentfield’s heavily wooded lots shed debris directly onto low exterior vent terminations. We regularly find vents partially or fully blocked by compacted organic matter that traps moisture inside the system.
- Failed “sanitiser” fogging treatments from previous contractors. Homeowners call us after paying for a fogging service that smelled clean for two weeks, then watched mildew return because the moisture source and existing biofilm were never physically removed from the duct walls.
Pricing for Air Duct Cleaning in Kentfield, CA
A typical Residential Air Duct Cleaning in Kentfield runs $380-$680 for a full system, with smaller partial cleanings or add-on dryer vent work at the lower end and larger homes with extensive microbial remediation at the upper end. Commercial Air Duct Cleaning in Kentfield starts around $650 and ranges to $1,200 for multi-zone or rooftop systems. What moves the price: system size and register count, accessibility of ductwork in crawl spaces or attics, the degree of contamination we’re removing, and whether repairs to damaged ducts or insulation are needed.
We give one flat price per system, agreed in writing before any work starts. No per-vent add-ons, no surprise line items, no fogging upsells presented after we’re in your home. You’ll know exactly what the job costs and exactly what it includes. Call (323) 918-4345 for a free estimate. We can often give you a reliable range over the phone once you describe your system.
We Also Serve Cities Near Kentfield
Our crews work throughout central Marin County, including Kentfield and the surrounding communities of Larkspur, San Anselmo, San Rafael, and Corte Madera. Each area has its own microclimate and housing patterns, and we adjust our approach accordingly. San Rafael’s drier conditions mean less microbial pressure. Corte Madera’s newer construction typically features more accessible ductwork. Larkspur and San Anselmo share Kentfield’s wooded character but with their own distinct pollen profiles and moisture patterns.
Serving Kentfield, CA - Our Local Coverage Area
We’re based in the Kentfield 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 About Air Duct Cleaning in Kentfield
Kentfield sits in a fog-collecting valley below Mount Tamalpais that receives 50+ inches of annual rainfall, keeping attic and crawl-space humidity higher than San Rafael’s drier, more exposed terrain year-round. That persistent moisture condenses on cold duct metal and sustains mildew colonies that simply can’t establish themselves in drier conditions. Call (323) 918-4345 and we’ll assess your specific moisture sources.
No, not as a substitute for source removal. Fogging leaves the existing biofilm on duct walls and does nothing to address the condensation that feeds regrowth. In Kentfield’s humid environment, mildew recolonizes within a season. We physically remove contamination with agitation and negative pressure, then address moisture intrusion points. That’s the only approach that lasts here.
Bay laurel releases extremely fine, sticky pollen and aromatic oil particles each spring that infiltrate return-air grilles, coat duct interiors with a residue that binds other debris, and act as a potent allergen. Local techs recognize this pattern immediately, it’s rarely seen even a few miles east in San Rafael’s less-canopied neighborhoods. Source removal with mechanical agitation is the only effective treatment.
Every three to five years for most Kentfield homes, though properties with heavy tree canopy exposure, visible mildew history, or occupants with allergies may need more frequent attention. The original sheet-metal ductwork in 1940s-1960s ranch homes degrades faster here than in drier climates, so we recommend inspection every couple of years after the first cleaning. Call (323) 918-4345 to schedule a look.
Yes, if the smell originates in the duct system from mildew or accumulated organic debris, which is common in Kentfield’s humid conditions. We verify the source with video inspection before cleaning, because musty smells can also come from crawl-space moisture, plumbing leaks, or exterior water intrusion that duct cleaning won’t address. When ducts are the cause, our source-removal process eliminates the odor at its origin rather than masking it.
Ready to see what your ducts actually look like? Call Morton’s Air Duct Cleaning at (323) 918-4345 for a free written estimate. We’ll schedule a video inspection, give you one flat price before any work starts, and leave your Kentfield home cleaner than we found it, with the photo to prove it.
Written by Paul Adeyemi, Owner at Morton’s Air Duct Cleaning, serving Kentfield and Marin County since 2005.