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.
Fast, Reliable Air Duct Cleaning Across Petaluma
Air duct cleaning in Petaluma typically runs $350 – $650 for a whole-home system and most jobs are completed in a single visit. We’re Hollis Air Duct Cleaning, part of the Garrison Partners family, and our crews serve Petaluma from our San Francisco Bay Area dispatch office. We know the difference between a standard dust removal job and the moisture remediation work that Petaluma’s older homes actually need.
We’ve worked on Victorians near Keller Street, Craftsman bungalows in the Oak Hill-Brewster district, and tract homes off McDowell Boulevard. Petaluma’s cool, foggy mornings and riverfront dampness create problems that inland homes don’t face: rust in original metal ducts, mold in crawlspaces, and silt from seasonal flooding. Our technicians arrive uniformed, background-checked, and equipped with Rotobrush rotary systems and Nikro negative-air machines. Call (361) 326-5060 for a free estimate.
Why Hollis Air Duct Cleaning Is Petaluma’s Preferred Air Duct Cleaning Company
Hollis has been in business since 2004, and our Air Duct Cleaning team understands what Petaluma’s housing stock demands. We don’t treat a 1920s Victorian with an octopus gravity furnace the same as a 1985 tract home with flex duct. That distinction matters here.
Our pricing is written down before any work starts, and it doesn’t move at the door. The 365-Day Done Right Promise covers every job: if the work fails within a year, we return and make it right at no charge, including a free second visit. No negotiation, no runaround.
Phones are answered by a live person 24 hours a day, 7 days a week. You’ll know who’s coming to your home before they arrive, and they’ll show up inside the quoted window. That’s The Garrison Standard, and it’s how we operate in Petaluma.
Air Duct Repair in Petaluma
Air Duct Repair in Petaluma means fixing the disconnected, rusted, or crushed ductwork that cleaning alone won’t solve. In older homes near downtown and the riverfront, we regularly find original metal ducts that have separated at the joints, rusted through from decades of fog and crawlspace moisture, or been crushed by settling foundations. A typical repair in Petaluma runs $200 – $500 for minor joint sealing and reconnection, while extensive rust remediation or partial duct replacement can reach $800 – $1,500.
Disconnected and Crushed Runs
Original hardwood floors in pre-1930 Petaluma homes often hide duct runs that have separated or been flattened by time. We use video inspection to locate these breaks before we quote any work. You can’t clean air that isn’t moving through the duct.
Rust Remediation in Metal Ducts
Petaluma’s persistent humidity accelerates rust in the thin-gauge metal ducts common to octopus gravity systems. We remove loose scale with agitation tools, apply sealing mastic to stabilize remaining metal, and replace sections that have corroded through. The goal is a duct that moves clean air, not a temporary fix that fails next season.
Ductwork Cleaning in Petaluma
Ductwork Cleaning in Petaluma is often a moisture and mold job disguised as a dust removal call. The fog that rolls in from San Pablo Bay keeps indoor humidity elevated for months, and the riverfront floodplain means crawlspaces and attics stay damp year-round. A standard whole-home ductwork cleaning in Petaluma runs $350 – $650, while homes with significant mold contamination or silt intrusion from flooding may need sanitization and remediation work that runs $600 – $1,200.
Negative-Air Cleaning with HEPA Filtration
We use Nikro negative-air machines to pull contaminants out of your ductwork under controlled pressure, exhausting through HEPA filtration so nothing recirculates into your living space. This matters in Petaluma, where mold spores and river silt are the problem, not just household dust.
Rotary Brush Agitation for Original Metal Ducts
Our Rotobrush systems use rotating bristle heads to knock rust scale and compacted debris loose from the walls of old metal ducts. On Petaluma’s octopus gravity systems, this agitation step is essential. Surface vacuuming leaves the buildup that feeds musty odors.
Trusted Brands We Service in Petaluma
We run professional-grade equipment on every Petaluma job: Rotobrush rotary brush systems for mechanical agitation, Nikro negative-air machines for source removal, and filtration products from Honeywell, Aprilaire, and Guardsman. These are the same tools commercial crews use in hospitals and schools, not hardware-store attachments. We stock parts and maintain our own equipment, so if a filter needs swapping or a brush head wears out mid-job, we don’t leave your home to hunt for supplies. Our technicians are trained on the specific maintenance protocols for each brand, which means the machine performs to spec on your job, not just “good enough.”
Common Air Duct Cleaning Problems We See in Petaluma Homes
- Mold and mildew in flood-adjacent ductwork. Homes near the Petaluma River, especially in the historic downtown and riverfront districts, often develop mold colonies inside ducts after wet winters. The fog and seasonal flooding keep humidity high enough that standard cleaning without sanitization leaves the root problem intact.
- Rust scale in octopus gravity furnace ducts. Pre-1930 Victorians and Craftsman homes throughout Petaluma still run on original gravity systems with thin metal ductwork. Decades of moisture have corroded the interior surfaces, and every heating cycle releases rust particles and musty air into the home.
- Disconnected runs under original hardwood floors. Settling foundations and age have separated duct joints in homes from the Oak Hill-Brewster area to the west side. The system runs, but air leaks into the crawlspace or wall cavities instead of reaching the rooms above.
- Flexible ducting crushed or clogged with debris in east-side tract homes. The 1960s-1990s subdivisions off McDowell Boulevard and Corona Road used flexible ducting that sags, crushes, or traps debris. We’ve found everything from construction dust to rodent nesting material blocking airflow completely.
Pricing for Air Duct Cleaning in Petaluma, CA
Here’s what air duct cleaning costs in Petaluma’s market, based on the jobs we’ve completed across the city:
| Service | Typical Range |
|---|---|
| Whole-home duct cleaning (standard) | $350 – $650 |
| Duct cleaning with mold sanitization | $600 – $1,200 |
| Minor duct repair (sealing, reconnection) | $200 – $500 |
| Partial duct replacement (rust/flood damage) | $800 – $1,500 |
| Video inspection | $150 – $250 (often waived with cleaning) |
What moves the price: the age and condition of your ductwork, whether we find mold or rust requiring remediation, accessibility (crawlspace height, attic conditions), and whether disconnected or crushed runs need repair before cleaning is effective. We inspect first, write the price down, and get your approval before any work begins. No per-vent pricing, no add-ons at the door. Call (361) 326-5060 for a free estimate.
Petaluma’s Unique Duct Cleaning Challenge: Moisture, Not Just Dust
Petaluma’s historic riverfront and downtown districts sit on a floodplain, and seasonal dampness combined with the area’s heavy Victorian housing stock means air ducts here often harbor mold and mildew that inland cities like Santa Rosa don’t see. So duct cleaning in Petaluma is less about dust and more about moisture remediation and sanitization. After a wet winter, flood-adjacent homes near the Petaluma River can have ducts packed with silt and mold spores that require full replacement rather than cleaning alone.
We were called to a 1908 Victorian on Keller Street where the homeowner complained of a musty smell every time the heat kicked on. A camera inspection of the original octopus gravity furnace’s undersized metal ducts revealed heavy rust and a disconnected run under the hallway floor, so we set up negative pressure with HEPA filtration, used agitation tools to remove the rust scale and silt, and sealed the joints. The homeowner said the air finally smelled like a normal house.
This is why we don’t quote blind. We inspect with a camera, show you what we find, and price the actual work your home needs. Surface-only cleaning on Petaluma’s older homes is a waste of money. The musty smell returns within weeks if the rust and mold aren’t addressed at the source.
We Also Serve Cities Near Petaluma
Our crews cover the full North Bay area, including Petaluma and surrounding communities: Cotati, Rohnert Park, Novato, and Boyes Hot Springs. Scheduling and dispatch are coordinated from our San Francisco Bay Area office, with local technicians serving each area.
Serving Petaluma, CA - Our Local Coverage Area
We’re based in the Petaluma 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 Petaluma
Petaluma’s riverfront floodplain and persistent fog create higher indoor humidity than Santa Rosa’s drier, inland climate. That moisture feeds mold and mildew inside ductwork, especially in crawlspaces and attics. Sanitization is often necessary here to kill mold colonies that dust removal alone won’t touch. Call (361) 326-5060 for an inspection and exact quote.
We find rust scale from decades of moisture exposure, silt in flood-affected homes, disconnected joints from settling, and sometimes collapsed sections under original floors. These systems weren’t designed for modern HVAC loads, and the ductwork is often undersized and leaky. Camera inspection reveals what’s actually in there before we quote any work.
It depends on what the camera shows. Light silt and surface mold can be removed with negative-air cleaning and sanitization. Heavy silt infiltration or corroded metal with mold penetration usually requires partial or full duct replacement. We never recommend cleaning when replacement is the only permanent fix. Call (361) 326-5060 for a free inspection.
Pre-1930 homes near downtown need careful handling of fragile original metal ducts, video inspection for disconnected runs, and often repair work before cleaning. East and west side tract homes from the 1960s-1990s have flexible ducting that needs different agitation tools and checks for crushing or pest intrusion. We adjust the equipment and approach to what your home actually has.
Yes. Our technicians are trained on maintenance and field repair for both Rotobrush rotary systems and Nikro negative-air machines. We carry replacement parts and filters on every truck, so equipment issues don’t delay your job or compromise results. The machine performs to manufacturer spec, or we don’t run it.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Petaluma and the North Bay.




Before
After
Before
After
Before
After