Air Duct Cleaning Services in San Anselmo, CA
Air duct cleaning in San Anselmo typically runs $350-$650 for a full residential system, with most jobs completed in a single visit and camera-verified results before we leave. Bellows Air Duct & Vent Co. of California has worked in San Anselmo since 2016, and our technicians know the crawl-space ductwork that runs beneath the Craftsman bungalows along San Anselmo Avenue and the hillside Victorians above Red Hill Avenue. Call (855) 401-6006 for upfront pricing and a free estimate - no bait coupons, no surprises when we arrive.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Why San Anselmo Homeowners Choose Bellows Air Duct & Vent Co. of California
We’ve been called to homes on Creek Road where the homeowner hadn’t looked at their ducts in thirty years, and to properties near Memorial Park where a recent renovation stirred up decades of settled ash. In every case, we show up with the same approach: camera in hand, upfront price already discussed, and a technician who answers to a live person at our office, not an app.
San Anselmo homeowners tend to stay put. The town’s housing stock of pre-1950s Craftsman and Victorian homes rewards patience, and the people who own them have usually survived at least one bad contractor experience. They call us because we answer the phone, because our pricing is the number on the invoice, and because our 90-Day Done Right Promise means if something isn’t right, we come back with no paperwork and no argument. We’ve built our reputation in neighborhoods like San Anselmo Knolls and the flats near Sir Francis Drake Boulevard through repeat calls and neighbor referrals, not coupon mailers.
Our technicians are background-checked and uniformed. They carry Rotobrush and Nikro equipment, and they photograph your ductwork before and after every clean. Most jobs finish in one visit. If you’re a senior or veteran, we apply a permanent 5% discount. We also honor any written estimate with a free second opinion, and we run a standing $89 Seasonal Tune-Up for systems that just need a check rather than a full clean.
Air Duct Cleaning Services We Offer in San Anselmo
Air Duct Cleaning
We clean the full supply and return network in your home, from the main trunk lines to the individual branch ducts feeding each room. Every job starts and ends with a camera inspection so you see what we see. Learn more about our Air Duct Cleaning in San Anselmo.

Dryer Vent Cleaning
Lint accumulation in dryer vents is a leading cause of house fires, and San Anselmo’s older homes often have vent runs that predate modern safety codes. We clear the full line from appliance to exterior termination and verify airflow with a meter. Learn more about our Dryer Vent Cleaning in San Anselmo.

HVAC Cleaning
Coils, blower assemblies, and plenums collect the same debris as ducts, and cleaning them without addressing the full system leaves half the problem in place. We clean the mechanical components that move your air, not just the channels it travels through. Learn more about our HVAC Cleaning in San Anselmo.

Duct Repair & Sealing
Older sheet-metal ducts with degraded mastic joints leak heated and cooled air into crawl spaces and wall cavities. We seal accessible joints and repair damaged sections through our Duct Repair & Sealing in San Anselmo so your system delivers what it produces.

Air Quality & Sanitizing
For homes with documented mold, pest intrusion, or post-fire particulate concerns, we apply Air Quality & Sanitizing in San Anselmo with EPA-registered sanitizers after mechanical cleaning. We use this service where conditions warrant it, not as an automatic upsell.

Neighborhoods We Serve in San Anselmo
We work across the full 94960 and 94979 ZIP codes, with same-day or next-day response for most San Anselmo calls. These are the areas we know best:
- San Anselmo Knolls - hillside homes with ductwork exposed to temperature swings and occasional rodent intrusion
- The Flats near Sir Francis Drake Boulevard - ground-level crawl spaces with documented moisture and past flooding exposure
- Creek Road corridor - properties within the San Anselmo Creek flood zone where silt residue and mold colonization are common findings
- Red Hill Avenue area - older Victorians with original or partially updated forced-air systems
- Memorial Park vicinity - homes with aging ductwork and post-2017 fire event particulate infiltration
Why San Anselmo’s Climate & Housing Affect Air Duct Cleaning
San Anselmo sits at the bottom of the Ross Valley along San Anselmo Creek, and that geography creates conditions you won’t find in the hillside towns around it. The valley traps fog and moisture, keeping ambient humidity measurably higher than in elevated or bay-facing communities nearby. Air pools between the Marin hills, and the result is a persistent dampness that accelerates mold and dust-mite growth inside ductwork that hasn’t been opened in years.
Most of San Anselmo’s housing stock was built between 1905 and 1950 - Craftsman bungalows, Victorian cottages, early colonial-revival homes - and many still run original or only partially updated forced-air duct systems through uninsulated crawl spaces. These older sheet-metal ducts with degraded mastic joints leak, sag, and invite pest intrusion in ways that newer flex-duct systems simply don’t. The crawl spaces themselves stay wet through winter, especially in the flats near the creek where flooding has been documented repeatedly. We’ve opened ducts on Creek Road and found visible silt lines marking past inundation events, mold colonies colonizing flex-duct collars warped by moisture, and debris that genuinely surprises homeowners who expected ordinary household dust.
Layered on top of the moisture problem, San Anselmo’s position on Marin County’s wildland-urban interface means fine ash and smoke particulate from regional fire events in 2017, 2019, and 2020 infiltrated aging systems that lacked modern filtration. Pre-1950s homes weren’t built with sealed ductwork or MERV-rated filters, and the particulate found its way into trunk lines and branch ducts where it remains until mechanically removed. We’ve camera-inspected systems in the Memorial Park area where the interior surfaces carried a pale gray film that homeowners mistook for ordinary dust until we showed them the footage.
This combination - valley-trapped humidity, creek-adjacent flooding history, aging unsealed ductwork, and post-fire particulate loading - means San Anselmo homes often need more thorough cleaning than their owners expect, and more careful inspection afterward to confirm the job was done right. We don’t quote over a template. We ask about your home’s age, its location relative to the creek, and any known moisture or fire-event exposure before we give you a number.
Pricing for Air Duct Cleaning in San Anselmo
We disclose pricing before we lift a single tool. No bait coupons, no “starting at” numbers that triple at the door. Here’s what San Anselmo homeowners typically see:
| Service | Typical Range |
|---|---|
| Standard residential air duct cleaning (single system, up to 12 vents) | $350-$550 |
| Larger homes or dual-zone systems (13-20+ vents) | $500-$650 |
| Dryer vent cleaning (standalone service) | $125-$195 |
| HVAC component cleaning (coils, blower, plenum) | $200-$350 |
| Duct repair & sealing (per accessible section) | $150-$400 |
| Air quality sanitizing (post-clean application) | $75-$150 |
Our $89 Seasonal Tune-Up covers inspection and light maintenance for systems that don’t yet need full cleaning. Seniors and veterans receive a permanent 5% discount. If you’ve received a written estimate from another company, we’ll provide a free second opinion. Call (855) 401-6006 for an exact quote on your home - estimates are free, and the price we give is the price on the invoice.
Service Area - Cities Near San Anselmo
We work throughout central Marin County. If you’re in Fairfax, CA, Kentfield, San Rafael, or Larkspur and need duct cleaning, we cover those areas regularly with the same upfront pricing and camera-verified process. Our technicians know the local housing stock and climate conditions that affect ductwork in each town.
Serving San Anselmo, CA - Our Local Coverage Area
We’re based in the San Anselmo 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 San Anselmo
Most San Anselmo homes fall in the $350-$550 range for a standard single-system clean with up to 12 vents. Larger homes or properties with dual-zone systems typically run $500-$650. We give exact quotes by phone after asking about your home’s size, age, and vent count - call (855) 401-6006 for a free estimate with no obligation.
Every three to five years for most homes, but San Anselmo’s valley humidity and older housing stock often shorten that interval. Homes near San Anselmo Creek with crawl-space ductwork, or properties that experienced particulate infiltration during the 2017 or 2020 fire events, may need cleaning every two to three years. We camera-inspect first and tell you honestly whether you’re due.
Yes. We’ve worked on Craftsman and Victorian homes throughout San Anselmo since 2016, and our technicians are trained to handle fragile mastic joints, sagging flex-duct sections, and the other age-related issues common in pre-1950s systems. Our equipment is adjustable, and we photograph everything before we start so we know what we’re working with. If we find damage that makes cleaning inadvisable without repair first, we tell you before we proceed.
Repair and sealing is usually the more economical path for San Anselmo’s older homes, which often have solid sheet-metal trunk lines that just need joint resealing and localized patching. Full replacement runs $3,000-$7,000+ and is only necessary when ducts are extensively corroded, collapsed, or improperly routed. We camera-inspect, show you the condition, and quote both options if both make sense. Call (855) 401-6006 and we’ll walk through what your specific system needs.
We offer same-day or next-day response for most San Anselmo calls, including suspected mold concerns. If you smell mustiness, see visible growth around vents, or live in the creek-adjacent flood zone where moisture intrusion is common, we’ll prioritize your appointment and bring moisture meters and camera equipment to assess the extent before quoting any work. Call (855) 401-6006 - we answer live, 24 hours a day.
Written by the team at Bellows Air Duct & Vent Co. of California, serving San Anselmo since 2016.
What happens when you call
- 1A real person answersNo phone trees - talk to a local air duct cleaning pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3A background-checked tech heads outLicensed & insured, typically within within the hour.
- 4You approve before work beginsNothing starts until you say go.
What Los Angeles Customers Say
"Showed up fast, fixed it right the first time, and the price matched the quote. Couldn't ask for more."
- Verified local homeowner"Professional from the first call. Explained everything clearly and left the area spotless."
- Verified local homeowner"Called in the morning, problem solved by afternoon. Honest, upfront pricing - highly recommend."
- Verified local homeowner