Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
Sanitizing & deodorizingWhole-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 San Mateo
Air duct cleaning in San Mateo typically runs $450 – $900 for a full single-family home, depending on the number of runs and how much buildup has settled in the system. Most jobs we handle here are completed same-day with a two-person crew running Rotobrush agitation tools and a Nikro HEPA vacuum rig. San Mateo’s housing stock is mostly 1940s – 1960s ranch and Eichler-influenced homes, which means we spend a lot of time dealing with original galvanized ductwork rather than newer flex runs. Call (855) 356-5880 to talk through what you’re seeing in your home. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday.
Why San Mateo Homeowners Call Duct Cleaning San Leandro for Air Duct Cleaning
We position ourselves as the equipment-serious alternative to generalist HVAC cleaners. That matters in San Mateo because the housing stock demands it. Original sheet-metal ducts in Baywood and Highlands ranch homes carry decades of accumulated dust, pet hair, and marine-air corrosion that a consumer shop vac simply cannot reach. We show up with Rotobrush and Nikro rigs, not a shop vac and a flashlight.
Our air duct cleaning team works throughout San Mateo regularly. Homeowners in the flats east of El Camino have a specific problem we know well: floor-register duct runs passing through damp crawlspaces, rusting out at the seams. That’s not a guess. It’s what we see when we run a camera through those systems. We also handle the flexible ducting in newer infill condos and townhomes along the 101 and 92 corridors, where tight attic installs leave runs crushed and airflow choked. Same-day service is available, and every job starts with a camera inspection before any cleaning begins.
Styles & brands we work with
- Whole-home duct cleaning
- Dryer vent cleaning
- Camera inspection
- Sanitizing & deodorizing
HVAC Duct Cleaning in San Mateo
HVAC Duct Cleaning in San Mateo means tackling the specific buildup pattern that comes from mild marine air and light system use. Your furnace and air handler run far fewer hours than in places like Livermore or Walnut Creek, so dust settles in the ducts and just stays there. Meanwhile, damp winter air off the Bay sits against poorly insulated attic ducts and condenses. That combination leads to slow, silent accumulation and, often, biological growth in the system long before you notice anything wrong. A full cleaning here costs $450 – $900 for a typical ranch home.
Supply and Return Duct Cleaning
We clean both sides of the system. Supply ducts push conditioned air into living spaces; return ducts pull room air back to the air handler. In San Mateo’s older homes, the return side often serves as a dust reservoir because original filtration was minimal. We run Rotobrush agitation through each supply and return run, with negative pressure held at the air handler by the Nikro HEPA rig. Nothing we dislodge re-enters the living space.
Full System Cleaning With Camera Verification
Every full-system job includes video inspection before and after. Before, the camera shows us where buildup is heaviest, where seams have separated, and whether any runs are crushed or breached. After, it gives you visual proof the runs are clean. We clean it and fix it. If the camera shows a crushed flex run or a rusted seam, we tell you and can repair it on the same visit.
Vent Cleaning in San Mateo
Vent Cleaning in San Mateo addresses two distinct things: the HVAC registers and the runs behind them, and the dryer vent that exits through your roof or sidewall. Both matter here for different reasons. HVAC registers in older homes collect dust and pet hair that can get pulled back into the air stream. Dryer vents, meanwhile, fill with lint that the damp marine air makes heavier and stickier than in dry inland climates. Lint blockages are a real fire hazard, and the NFPA recognizes dryer vent cleaning as a leading fire-prevention measure, not an optional add-on.
Register and Grille Cleaning
We remove, clean, and reinstall registers and grilles as part of vent cleaning. In homes with floor registers over crawlspaces, this is where we often find the first visible sign of trouble: rust flakes, rodent droppings, or moisture staining around the boot. The register itself isn’t the problem. It’s a window into what’s happening in the run below.
Dryer Vent Cleaning
Dryer vent service is the single most important thing a homeowner can do to reduce a specific fire risk in the house. In San Mateo, vent runs in older ranch homes often travel long horizontal distances through low-pitch attics or crawlspaces before exiting, which gives lint more surface area to accumulate. A full dryer vent cleaning, including the termination, costs about $130 – $220 here.
Trusted Brands We Service in San Mateo
We work with and around Honeywell and Aprilaire whole-home air quality equipment, so a cleaning doesn’t compromise whatever filtration or humidity control you’ve already invested in. Technicians who only know ducts and not the equipment attached to them can damage sensors, bypass dampers, or leave filter housings mis-seated. We understand how these systems tie together. For high-contamination scenarios – mold-adjacent conditions, post-renovation debris, heavily soiled systems – Abatement Technologies air-scrubbing units are part of our standard equipment stack. That’s the same brand used in commercial remediation contracts, and we bring it to San Mateo homes at residential pricing.
See the difference
Before
After
Before
After
Before
AfterCommon Air Duct Cleaning Problems We See in San Mateo Homes
- Rusted-through seams in floor-register runs east of El Camino. Damp crawlspace air condenses inside sheet-metal ducts, and over 60-plus years, the galvanized coating fails. The first sign is usually a musty smell after the first fall rains.
- Crushed flexible ducting in newer infill townhomes along the 101/92 corridors. Tight attic spaces force installers to bend flex runs past their safe radius. Airflow drops, rooms stop heating or cooling evenly, and the homeowner rarely knows why until a camera inspection shows the collapsed run.
- Slow, hidden buildup in Eichler-style and ranch homes with original sheet-metal ducts. The mild climate means the system doesn’t run enough to blow out what settles. Dust, pet hair, and rust scale accumulate over decades, often going unnoticed until allergy season.
- Rodent entry at floor registers over crawlspaces. Rust weakens seams, and rodents exploit the opening. Homeowners discover the problem when a musty or animal smell surfaces after the fall rains, or when they find droppings at a register in the flats near downtown.
Pricing for Air Duct Cleaning in San Mateo, CA
A typical full-system air duct cleaning in San Mateo runs $450 – $900 for a single-family home, with most ranch homes landing between $550 and $750. Condos and townhomes with fewer runs usually fall between $350 and $550. Dryer vent cleaning alone runs $130 – $220. What moves the price: system size, number of registers, amount of visible buildup, and whether any repairs are needed. We do not price per vent. One flat price per system, agreed before any work starts, based on a written estimate. Call (855) 356-5880 for a free estimate and we’ll give you a real number based on your home.
We Also Serve Cities Near San Mateo
Our work across the peninsula regularly brings us to San Mateo, and we also serve the surrounding communities. Homeowners in San Leandro, Alameda, Castro Valley, and Hayward call us for the same commercial-grade equipment and same-visit duct repair we offer in San Mateo. If you’re in a nearby city and need air duct cleaning or duct repair, reach out and we’ll get you scheduled.
Serving San Mateo, CA – Our Local Coverage Area
We serve San Mateo and nearby communities. Use the map below to see the area we cover. If you’re nearby, we can almost certainly help.
FAQs About Air Duct Cleaning in San Mateo
Because floor-register duct runs in homes east of El Camino pass through damp crawlspaces, and the first fall rains push humidity up under the house. Condensation rusts through old galvanized seams, and once air from that crawlspace can bleed into the runs, the musty smell rides the air stream into living spaces. A camera inspection usually shows rusted seams or rodent entry at the register boots. Cleaning alone won’t fix it – the breach has to be sealed – but source removal plus seam repair does. Call (855) 356-5880 and we’ll inspect yours.
Yes, often more than you’d think. Eichler-era sheet-metal ductwork has minimal filtration, so whatever the system does move through collects and stays. Low runtime means dust and biological growth build up slowly and silently, and the damp winter air off the Bay can condense on poorly insulated attic runs. We see homes in the Highlands where the ducts haven’t been opened in 50-plus years. A full cleaning with camera verification shows what’s actually in there, and whether a repair is needed.
Often no. A fog kills surface microbes briefly but does nothing to remove the settled dust, pet hair, and rust scale that feeds regrowth once damp Bay air returns. Without source removal, mold and bacteria come right back. That’s a common upsell from contractors who skip the actual cleaning work. We do offer Abatement Technologies air-scrubbing where it’s genuinely warranted – mold-adjacent conditions or post-remediation scenarios – but a fog alone is not a cleaning.
For most San Mateo homes, a MERV 8 to MERV 11 filter is the right balance. Higher ratings restrict airflow, and on older systems in ranch homes that can push the blower harder and lower efficiency. In damp marine air, a mid-range filter changed regularly does more for air quality than a high-MERV filter left in place too long. We can check your filter setup and how it’s performing as part of a full system cleaning.
You probably won’t know without a camera inspection. The symptom is usually uneven heating or cooling: one room stays cold in winter, hot in summer, and the thermostat never quite matches how the room feels. Tight attic spaces in infill construction along the 101/92 corridors make crushed flex runs common. When we run a camera through, collapsed runs show up immediately, and we can repair them on the same visit instead of sending you to find a second contractor. Call (855) 356-5880 to get a free estimate on an inspection.
Written by Sal Underwood, Owner at Duct Cleaning San Leandro, serving San Mateo since 2018.