From coastal homes that open their windows half the year to inland homes sealed against the heat, Fairfax duct systems collect a California mix of dust, pollen and smoke residue. Free inspections, same-day service and a camera view of your own ducts before we recommend anything.
Your information is kept private and used only for your air duct service request.
The six services Fairfax homeowners call us for most - from clearing smoke residue out of a trunk to sealing an attic system end to end. Everything on this page is air duct in Fairfax, CA — the work, the local conditions and the coverage.
Cleaning & Care
Air Duct Cleaning
Our negative-air machine seals onto the main trunk duct and puts the whole system under suction first. Then each run is scrubbed individually, so years of dust and debris travel one way only — out of the ducts and into the machine. In Fairfax, the cleaning focuses on the stored load - smoke residue, pollen and dust layered through the trunk. Air Duct Cleaning in Fairfax, CA is one call away, every day of the week.
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Cleaning & Care
Air Duct Inspection
For a Fairfax home you just bought, the inspection shows the condition of the one system nobody ever shows buyers. A camera goes inside your ductwork so you can see exactly what's in there — buildup, damage or blockages — before we recommend anything. Inspections are free. It is why air duct inspection in Fairfax, CA keeps getting recommended to neighbors.
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Repair
Air Duct Repair
Crushed, torn or disconnected ducts leak the air you pay to heat and cool. We repair and rebuild damaged sections so airflow is strong and even again. Air Duct Repair in Fairfax, CA starts with a real look at the problem — never a guess over the phone.
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Install & Replace
Air Duct Installation
New duct runs for additions, remodels and system upgrades — sized, sealed and balanced so every room gets its share of heating and cooling. For air duct installation in Fairfax, CA, one call books the visit and a local tech takes it from there.
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Repair
Air Duct Sealing
Leaky joints quietly waste a big share of your airflow. We seal seams and connections with professional mastic for a tighter, more efficient system. In Fairfax, sealing attic runs stops cooled air from spilling into the hottest space in the house. It is why air duct sealing in Fairfax, CA keeps getting recommended to neighbors.
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Cleaning & Care
Commercial Air Duct Cleaning
Offices, restaurants, retail and multi-unit buildings across Fairfax — scheduled commercial duct cleaning with the same negative-air machine sealed onto the trunk, keeping your space comfortable, compliant and breathing clean. In Marin County, property managers get a camera record of each system - useful documentation after smoke season for tenants and insurers alike. Booking commercial air duct cleaning in Fairfax, CA takes one call, and the tech arrives with everything the job needs.
Get a free estimateNeed something else — a damper, a blower, a smoke problem, a bird in the flue? We cover all 27 air duct specialties. Call (888) 258-5005 and describe it.
A duct system in Fairfax may face wildfire smoke, valley heat, coastal moisture or all three across the year. This is what we actually find here, and what we check on every visit.
Owners across Marin County notice it every year: weeks after a smoke event, the AC or heat still carries a faint campfire note at startup. That is smoke residue stored in duct dust, releasing a little with every cycle. Cleaning the reservoir is what ends it.
California's mild months are open-window months, and everything outside - pollen, road dust, construction grit - comes in and a share of it settles into the returns. By the time the house closes up for summer heat or winter rain, the system has stored a season of it.
Small tremors are a fact of life in Fairfax, and duct joints in attics and crawlspaces shift a little with each one. Over years, takeoffs loosen and seams open. A comfort problem with no obvious cause is worth a camera look at the connections overhead.
Raised-foundation homes around Fairfax run ducts through crawlspaces that stay cool and damp. Insulation sags, joints sweat and dust inside the runs sits in moisture - the musty startup smell in these homes is a crawlspace duct story more often than not.
Fairfax sits in Marin County, and the ZIP list at the bottom of this page covers 1 serviceable ZIP codes — 94930 through 94930. The closest served neighbors are San Rafael, San Anselmo, Larkspur, and every one of them is covered by the same crews, the same day, under the same number: (888) 258-5005.
Same-day service, free estimates, licensed & insured — and a air duct that lights when you click the remote.
It removes the indoor reservoir: smoke that settled into duct dust keeps recirculating long after outdoor air clears. Cleaning the trunk and returns, plus a fresh high-quality filter, is the combination Marin County homeowners use to close out a smoke season indoors.
Rooms that lag the thermostat, long AC cycles on ordinary days, dust returning soon after cleaning and weak airflow at distant registers. In attic systems across Fairfax, heat-dried tape and shifted joints are the standing culprits, and mastic sealing is the lasting fix.
Yes - original ductwork is the most common hidden cause of comfort and dust complaints in older Fairfax homes. The camera shows buildup, leaks and undersized returns plainly, and you can decide what, if anything, is worth doing from evidence.
Yes - offices, restaurants, retail, medical suites and multi-unit buildings across Fairfax, scheduled around your hours. Commercial systems get the same method: the negative-air machine sealed onto the trunk, every run cleaned individually, and a camera record of condition.
Yes - same-day service is available in Fairfax, along with free inspections and estimates before any work starts. We are licensed and insured, with 10+ years of experience and 100+ 5-star reviews. Call early in the day for the best chance of a same-day visit.
No — and be wary of anyone who does. Every duct system is a different size and condition, so a phone price is a guess that changes at your door. Our inspections and estimates are free: a tech looks inside your actual ductwork first, then gives you one clear price before any work starts.
Air Duct Service Co is a national company with local technicians serving Fairfax street addresses across the ZIP codes below — same-day service and free estimates, every day 8 AM – 8 PM. More of California is covered from our California page. The Fairfax list below covers 1 ZIP codes, 94930 through 94930.
Don't see your ZIP? Fairfax also uses P.O. Box and single-organization ZIP codes that have no street addresses — call (888) 258-5005 and we will confirm coverage for your street address on the call.
Also serving nearby: San Rafael, CA · San Anselmo, CA · Larkspur, CA · Corte Madera, CA · Mill Valley, CA · Novato, CA.
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