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.
Air Duct Cleaning Company in San Mateo, CA
Air Duct Repair in San Mateo is the service most homeowners don’t realize they need until a register blows weak or a musty smell drifts in after the first fall rains. Homes here lean heavily toward 1940s and 1950s construction, which means original galvanized ductwork in crawlspaces that has spent decades collecting dust, pet hair, and moisture from the marine air. That combination quietly corrodes seams, loosens connections, and eventually collapses runs. We do the full scope: clean the ducts, then repair or replace whatever’s failing, so you’re not calling a second company to finish what the first one couldn’t. Call (855) 356-5880 for a free estimate.
Why San Mateo Homes Are Different
San Mateo’s mid-century Eichler-style and ranch homes in the Highlands and Baywood neighborhoods were built with original rigid sheet-metal ductwork and minimal filtration. That means the work here is rarely about construction debris from a recent remodel. It’s about decades of accumulated dust, pet hair, and marine-air corrosion that stays invisible until a duct run collapses or airflow drops noticeably.
The humidity changes how our technicians approach every job. Damp winter air off the Bay condenses inside poorly insulated attic ducts, and in the older homes that moisture encourages mold growth that spreads slowly through the year. By the time a homeowner notices a persistent stale smell or allergy symptoms that don’t ease, the source is usually deep in the duct system, not at the register.
In the flats east of El Camino Real near downtown, many 1950s homes have floor registers connected to duct runs passing through damp crawlspaces. We routinely find rusted-through seams and rodent entry points that homeowners only discover when a musty smell appears after the first fall rains. Newer infill condos and townhomes along the 101 and 92 corridors use flexible ducting that crushes easily in tight attic spaces, and that pinched airflow is a repair job, not a cleaning job.
Styles & brands we work with
- Whole-home duct cleaning
- Dryer vent cleaning
- Camera inspection
- Sanitizing & deodorizing
Our Main San Mateo Services
Two services account for most of what San Mateo homeowners call us about. Both are handled by our own technicians with our own equipment, and both come with the same honest, single-scope estimate before any work begins.
Air Duct Cleaning in San Mateo
Cleaning the full duct system in a San Mateo home means running a rotating brush through runs that may have been installed before modern filtration existed. We use professional-grade Rotobrush systems and Nikro HEPA-vacuum rigs, not consumer shop vacs, so dust, pet hair, and biological growth are actually removed from the system rather than knocked loose and left to resettle. Older homes in the Highlands often need extra attention where return air pulls from a central hallway, a common design in Eichler-influenced floor plans. See Air Duct Cleaning in San Mateo for the full process and what it costs.
Dryer Vent Cleaning in San Mateo
A dryer vent in San Mateo often runs up through the wall and across a low-pitch attic, a longer path than the short runs in newer construction. Lint accumulates at every bend, and the marine air can turn that lint into a damp, compacted blockage that restricts airflow and becomes a genuine fire hazard. We treat this as a safety service, not an add-on, and our process is NFPA-recognized fire prevention. Find the details on Dryer Vent Cleaning in San Mateo.
Air Duct Repair in San Mateo
Air Duct Repair in San Mateo usually starts as a cleaning call that reveals something worse. A homeowner complains about weak airflow in the back bedroom or a musty smell after rain, and once we open the crawlspace access we find rusted-through sheet metal, a disconnected boot, or a run that rodents have torn open. The mild marine climate hides these failures because the HVAC system runs less than in hotter inland cities; problems build slowly and go unnoticed until allergy season or the first damp weeks. Since our company operates full repair capability alongside cleaning, we fix what we find on the same visit. That’s the difference between calling a duct cleaner and calling Air Duct Repair specialists: we’re both.
Ductwork Repair
Signs you need it
You notice weak airflow from specific registers, a musty smell that worsens after rain, or rooms that never reach the thermostat setting while others overheat.
What it costs in San Mateo
Typical ductwork repair in San Mateo runs $300 to $1,800 per section depending on how much of the run needs patching, reconnecting, or sealing.
How we do it
We locate the leak or failed seam with a visual crawlspace inspection, cut out the damaged section, and replace or seal it with code-appropriate materials before re-testing airflow at the affected registers.
Air Duct Replacement
Signs you need it
Your ducts are original to a 1940s or 1950s home, heavily rusted along the seams, or so patched already that further repair makes no economic sense.
What it costs in San Mateo
Full air duct replacement in San Mateo typically runs $3,000 to $8,000 depending on the home’s square footage, crawlspace clearance, and how many runs need replacement.
How we do it
We remove the failed material, size new duct runs to the existing HVAC system, and install rigid or flexible ducting properly supported and sealed before balancing airflow through the home.
What Air Duct Repair Costs in San Mateo
| Item | Typical range in San Mateo |
|---|---|
| Ductwork repair (per section) | $300 – $1,800 |
| Air duct replacement (full system) | $3,000 – $8,000 |
| HVAC duct installation (new runs, per project) | $1,500 – $6,000 |
How long does duct repair take in a San Mateo crawlspace home?
Most ductwork repair in a typical San Mateo ranch home finishes in one visit, usually four to eight hours. Full replacement on a larger home can run into a second day. We’ll give you the timeline in writing before work starts.
Will my older San Mateo home need new ductwork or just repairs?
It depends on corrosion and rodent damage. Rusted seams in a 1950s crawlspace are often repairable in sections, but if the metal is failing across multiple runs, replacement is the honest answer. We show you photos of what we find before any work proceeds. Call (855) 356-5880 for an exact quote – estimates are free.
Brands We Service in San Mateo
We work around Honeywell and Aprilaire whole-home air quality systems, and our fleet includes Abatement Technologies air-scrubbing units for heavily soiled or high-contamination ductwork. We stock common Guardsman parts locally, which keeps most repair jobs moving without waiting on a parts shipment. See our brands for the full equipment list.
See the difference
Before
After
Before
After
Before
AfterPricing for Air Duct Cleaning Company in San Mateo, CA
| Service | Typical range in San Mateo |
|---|---|
| Air duct cleaning (whole home) | $450 – $1,200 |
| Air duct cleaning (condo or small townhome) | $300 – $600 |
| Dryer vent cleaning | $90 – $250 |
| Air duct repair (per section) | $300 – $1,800 |
| Air duct replacement (full system) | $3,000 – $8,000 |
| HVAC duct installation (new runs) | $1,500 – $6,000 |
| Duct replacement (partial system) | $1,200 – $4,500 |
| Ductwork installation (full project) | $2,500 – $7,000 |
What pushes a San Mateo job higher is usually crawlspace clearance, how much of the original 1950s sheet metal is failing, and whether the home sits in the damp flats where corrosion runs deeper. The price we quote is the price you pay: one flat number per system, agreed in writing before our technicians touch a register.
Neighborhoods We Serve in San Mateo
We cover all of San Mateo, but a few neighborhoods make up a large share of our work:
- Highlands
- Baywood
- Downtown and the flats east of El Camino Real
- Shoreview
- Parkside
Response time across San Mateo is consistent because we keep our equipment and parts loaded; most appointments happen within a few days of the call, with same-day work available when the schedule allows.
Service Area – Cities Near San Mateo
We serve San Mateo and the surrounding peninsula and East Bay communities. Homeowners in San Leandro, CA, Alameda, CA, Castro Valley, CA, and Hayward, CA get the same professional-grade equipment and the same repair capability we bring to San Mateo jobs.
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 Company in San Mateo
We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday. Same-day service is available in San Mateo when the schedule allows, and most appointments are booked within a few days of the call.
Most single-family homes in San Mateo don’t require HOA approval for duct cleaning or repair inside the home. Condos and townhomes may, especially if the ductwork runs through shared walls or attic spaces. Check your HOA’s rules before scheduling. We can adjust our approach to meet any reasonable requirements.
Most duct cleaning and repair work doesn’t require a permit in San Mateo. Full replacement or new installation may, depending on the scope and the city’s current rules. If a permit is needed on your job, we’ll tell you in the estimate and make sure the work meets code. Call (855) 356-5880 for a free estimate.
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 San Mateo Customers Say
"Found a disconnected run in the crawlspace while they were in there and told me about it rather than cleaning around it."
- Kurt Barrett"Ran a negative air machine on the whole system rather than the shop vac on a stick that the cheap outfit down the road uses. Showed me the before and after photos from inside the trunk line and it was genuinely disgusting."
- Katie Thompson"Job was done well and the house smells better. There was some dust knocked loose around a couple of the registers that I had to wipe down afterward."
- Vivian Wong