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.
Before
After
Before
After
Before
AfterAir Duct Cleaning Company in Millbrae, CA
Air duct cleaning in Millbrae typically costs $350 – $650 for a whole-home system, with most jobs completed in one visit. We price by the system, not by the vent, and we write that price down before any work starts. Millbrae’s location under the SFO flight path, combined with its mix of post-WWII ranch homes and 1960s tract housing with aging galvanized steel ductwork, creates conditions we see nowhere else in the Bay Area. Call (361) 326-5060 for a free estimate.
Why Millbrae Homes Are Different
Millbrae sits directly under the approach for San Francisco International Airport. That means jet exhaust, tire rubber particulates, and kerosene byproducts settle on roofs and get drawn into attic vents and HVAC intakes. We’ve opened ductwork in Millbrae homes that looked like it had been vacuuming a machine shop. The marine layer that rolls in most mornings keeps humidity high enough that this debris can bond to duct walls instead of passing through, especially in homes with older systems.
The housing stock reinforces the problem. Ranch-style homes built after WWII and tract houses from the 1960s and 70s dominate neighborhoods like Meadows and Millbrae Highlands. Many still run original galvanized steel ducts. That material corrodes internally, flakes off into the airstream, and develops loose joints where attic dust and exhaust particulates enter the supply side. We’ve pulled sections of duct in Millbrae where the interior diameter had narrowed by a third from rust and packed debris.
Fall and winter bring the kerosene odor issue. When winds shift, residents in eastern Millbrae especially report a fuel smell indoors. The cause is often negative pressure pulling aircraft exhaust through gaps in ductwork. Cleaning removes the accumulated residue; sealing the ducts stops the intake. Both jobs are common here and rare ten miles south.
Our Main Millbrae Services
Most Millbrae homeowners call us for one of three jobs. Each has its own page with full details, pricing, and what to expect on the day.
Air Duct Cleaning in Millbrae
We clean the full supply and return system with a Rotobrush rotary brush and, for heavily contaminated lines, a Nikro negative-air machine that pulls debris out under controlled suction. In Millbrae, we often find that aircraft particulates have combined with coastal humidity to form a stubborn film on duct walls. The rotary brush scrubs it loose; the negative-air unit captures it before it enters your living space. We photograph the before and after. Air Duct Cleaning in Millbrae covers the full process, what’s included, and how we price it.
Dryer Vent Cleaning in Millbrae
Dryer vents in Millbrae clog faster than inland equivalents. The same marine humidity that affects ducts causes lint to mat and stick rather than blow through. Long vent runs in split-level homes from the 60s and 70s compound the problem. We clean the full run from dryer to termination, check airflow with a meter, and verify the exterior damper operates freely. Dryer Vent Cleaning in Millbrae has the details and pricing.
Duct Sealing in Millbrae
Sealing is the fix for the kerosene odor, hot and cold rooms, and energy loss that cleaning alone won’t solve. We apply mastic sealant to joints and gaps in accessible ductwork, then pressure-test the system to verify the seal. In Millbrae’s older galvanized systems, we often find separations at the seams that have been leaking conditioned air into the attic for years. Duct Sealing in Millbrae explains when sealing is the right call and how we price it.
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.
Brands We Service in Millbrae
We stock parts and filtration products from Honeywell, Aprilaire, and Guardsman, and we carry Abatement Technologies HEPA equipment for jobs that need contained extraction. Most common replacements ship to our San Francisco Bay Area office within 24 hours. Our brands page lists the full roster.
Pricing for Air Duct Cleaning Company in Millbrae, CA
| Service | Typical range in Millbrae |
|---|---|
| Whole-home air duct cleaning (single system) | $350 – $650 |
| Whole-home air duct cleaning (dual-zone system) | $550 – $850 |
| Dryer vent cleaning (standard run, ground floor) | $120 – $180 |
| Dryer vent cleaning (long run or roof termination) | $180 – $250 |
| Duct sealing (partial, accessible lines) | $400 – $700 |
| Duct sealing (whole-home, including testing) | $800 – $1,400 |
| HVAC blower motor cleaning | $75 – $125 |
| Sanitizing treatment after cleaning | $75 – $150 |
Prices in Millbrae run toward the higher end of these ranges when ductwork is original galvanized steel with heavy corrosion, or when aircraft residue has bonded to interior walls and requires extended brush time. We inspect first, write the price down, and do not move it at the door.
Neighborhoods We Serve in Millbrae
We work across Millbrae without zoning surcharges. Crews dispatched from our San Francisco Bay Area office typically arrive inside the quoted window anywhere in the city.
- Meadows
- Millbrae Highlands
- Green Hills
- Lomita Park
- Broadway corridor
Service Area – Cities Near Millbrae
Our crews cover the full Peninsula corridor. Regular service calls come from San Bruno, CA to the north, Burlingame, CA and South San Francisco, CA along the 101 corridor, and Pacifica, CA to the west. Scheduling is coordinated from our San Francisco Bay Area office; we do not charge extra for travel to any of these cities.
Serving Millbrae, CA - Our Local Coverage Area
We’re based in the Millbrae 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 Company in Millbrae
No permit is required for cleaning or sealing existing ductwork in Millbrae. If your project involves replacing duct runs or modifying the HVAC footprint, the city may require a mechanical permit. We handle the paperwork for any job that crosses that line.
Most Millbrae HOAs do not restrict duct cleaning or sealing since the work happens inside the home. We carry general liability and workers’ compensation insurance, and we’ll provide a certificate of insurance to your HOA office on request.
We typically schedule within 3 – 5 business days for standard cleaning and sealing jobs. Emergency calls, such as a completely blocked dryer vent, get priority. Call (361) 326-5060 and we’ll find the next available slot.
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.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Millbrae Customers Say
"No sales pitch. Told me which parts of the system were fine and only cleaned what needed it."
- Ted L."They checked each section with a camera and showed me the dust before and after. Thorough and honest."
- Nicole H."Duct sealing along with the cleaning cut our summer bill. Straight talk and fair price."
- Gwen O.