Air Duct Cleaning in Fairfax - One Flat Price, Before-and-After Photos

Fast, Reliable Air Duct Cleaning Across Fairfax

Air duct cleaning in Fairfax, CA typically runs $350 – $650 for a whole-home system and is scheduled within a few business days, with our dispatch team coordinating from the San Francisco Bay Area office. We’re Hollis Air Duct Cleaning, and we’ve been clearing the smoke residue, redwood pollen, and decades of buildup from Fairfax ductwork since 2004. If your registers are blowing dust after the last wildfire season, or your 1960s rancher on the flats hasn’t had its ducts touched in twenty years, we’ll price the job in writing before we start and stand behind it for 365 days. Call (361) 326-5060 for a free estimate.

Call (361) 326-5060

Fairfax sits in a tight pocket of the Ross Valley where the hills funnel Marin County’s seasonal winds straight through neighborhoods from the Fairfax flats up to homes near the base of White’s Hill. That geography means your ductwork works harder than most Bay Area systems, pulling in fine particulates from wildfire smoke events and the dense fir and redwood pollen that blankets the valley each late summer. Our crews know the crawlspaces under those postwar bungalows on Elsie Lane and the tight attic hatches in the hillside homes off Scenic Road. We bring Rotobrush rotary systems and Nikro negative-air machines sized for Fairfax’s mix of original rigid metal ductwork and newer flex runs.

Why Hollis Air Duct Cleaning Is Fairfax’s Preferred Air Duct Cleaning Company

We’ve built our reputation in Marin County one written estimate at a time. Our Air Duct Cleaning team serves Fairfax under The Garrison Standard, which means we arrive inside the quoted window, price the job on paper before touching equipment, and leave the site clean. No voicemail loops, either. A live person answers our phones 24 hours a day, seven days a week.

Our Fairfax customers tend to mention the same things in callbacks: they were tired of teaser quotes that doubled once the van was in the driveway, and they wanted technicians who looked and acted like accountable professionals. That’s The Garrison Code in practice. Every Hollis technician is background-checked and uniformed, and every job carries our 365-Day Done Right Promise. 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.

Because our San Francisco Bay Area office handles scheduling, Fairfax homeowners aren’t waiting for a crew to drive up from the Central Valley or across the bridge during evening rush. We know the local permit environment, the typical duct configurations in Fairfax’s 1920s – 1970s housing stock, and the specific smoke residue problems that follow Marin County’s recurring wildfire episodes.

Air Duct Repair in Fairfax

Air Duct Repair in Fairfax becomes necessary when the rigid metal or flex ductwork running through your crawlspace or attic has separated at the seams, corroded from moisture, or been damaged by rodents common to the wooded hills around White’s Hill and Cascade Canyon. Most Fairfax homeowners need repair after heavy winter rains push water into crawlspace ducts, or after decades of vibration have loosened the connections in original 1950s – 1970s systems. A typical repair in Fairfax runs $200 – $500 for sealing and patching, with full section replacement reaching $800 – $1,400 depending on accessibility and material.

Smoke Damage and Corrosion Repair

After major wildfire smoke events, we find Fairfax ductwork with fine ash baked onto metal walls by the heat of the furnace cycle. This residue eats at galvanized steel over time and can re-release particles when the system kicks on. We cut out corroded sections and replace with properly sealed rigid pipe or flex, depending on the run.

Crawlspace Moisture Fixes

Fairfax’s wet winters saturate the soil under homes in the flats, and water finds its way into low-lying duct runs. We repair the damaged sections, then evaluate whether Duct Sealing in Fairfax would prevent the same problem next season by closing the gaps that let moisture and outside air enter the system.

Ductwork Cleaning in Fairfax

Ductwork Cleaning in Fairfax means removing the accumulated debris that Marin County’s unique climate drives into residential systems: wildfire smoke particulate, redwood and fir pollen, ordinary dust, and the mold spores that flourish when winter moisture meets summer heat in poorly ventilated crawlspaces. Most Fairfax homes need this service every three to five years, sooner if you’ve noticed reduced airflow, musty odors when the AC cycles, or visible dust plumes from registers. A whole-home ductwork cleaning in Fairfax typically costs $350 – $650, with larger hillside homes or systems with heavy smoke residue running toward the higher end.

Rotary Brush and Negative-Air Methods

We match the cleaning method to your duct type. Original rigid metal ducts in Fairfax’s older ranch homes respond well to Rotobrush rotary systems that scrub the walls, followed by Nikro negative-air extraction that pulls loosened debris out of the house entirely. Flex ductwork, common in hill remodels, requires gentler contact to avoid tearing the liner.

Register-to-Register System Cleaning

Our full-system approach cleans every supply and return run, not just the trunk lines. In Fairfax’s smaller bungalows, this means accessing tight attic spaces and working around the original framing. We photograph the before condition at the registers and show you the after, so you know the work happened.

Trusted Brands We Service in Fairfax

Hollis technicians arrive with professional-grade equipment from Rotobrush, Nikro, and Abatement Technologies, plus filtration products from Honeywell, Aprilaire, and Guardsman. We don’t use hardware-store vacuums with a brush attachment. The rotary systems we run are the same units commercial crews deploy in Marin County office buildings, sized down for residential access. For Fairfax homeowners, this means we can source replacement filtration and sealing materials without the multi-week delays that come from ordering through generic suppliers. If your system uses an Aprilaire media air cleaner or a Honeywell electronic air purifier, we stock the correct replacement filters and can install them while we’re cleaning the ductwork. The right equipment matters in Fairfax because smoke residue and organic pollen require HEPA-level filtration and agitation that consumer machines simply don’t deliver.

Common Air Duct Cleaning Problems We See in Fairfax Homes

• Wildfire smoke residue in older rigid ductwork. After the big smoke events that roll through the Ross Valley, Fairfax techs pull out ducts that look clean from the outside but are lined with sticky, fine ash. Standard vacuums can’t touch it. We use rotary brushes and HEPA filtration to get the residue off the walls.
• Mold in crawlspace flex runs. The combination of Fairfax’s wet winters and poor crawlspace ventilation creates perfect conditions for mold growth on flex duct insulation. We find this most often in hillside homes where the grade traps moisture against the foundation.
• Disconnected seams in postwar ranchers. Those 1950s – 1970s homes in the Fairfax flats have decades of thermal expansion and contraction working on original duct connections. We regularly find separations that blow conditioned air into attics and crawlspaces, driving up PG&E bills.
• Redwood and fir pollen accumulation. Late summer and fall in Fairfax bring pollen loads that standard HVAC filters can’t catch. The material builds up in return ducts and on blower wheels, reducing airflow and forcing the system to run longer.

Pricing for Air Duct Cleaning in Fairfax, CA

We Also Serve Cities Near Fairfax

Our crews clean ducts throughout central Marin County. We regularly work in Fairfax and the surrounding communities of San Anselmo, Kentfield, San Rafael, and Larkspur. If you’re in one of these nearby towns and found this page, the same pricing structure and 365-Day Done Right Promise apply. We also handle Dryer Vent Cleaning in Fairfax and the same service area, often scheduling both jobs for the same visit.

FAQs About Air Duct Cleaning in Fairfax