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 usually costs between $350 and $1,200 for the most common jobs – sealing a leaky joint, replacing a crushed section of flex duct, or patching rusted single-wall metal. Everclear Air Duct Cleaning has served San Mateo since 2017, and we bring the same Rotobrush and Nikro equipment used on commercial remediation jobs to the older ranch and tract homes that make up so much of this city. Call (833) 620-5944 for a straight answer about your system. We’ll tell you what’s actually wrong before we quote a number.
Why San Mateo Homes Are Different
San Mateo sits in the middle of the Peninsula’s marine layer belt, where cool, damp air pushes through the San Bruno Gap and settles over neighborhoods from Baywood to Hillsdale. That means duct systems in this city deal with near-constant moisture, not dry heat. In the fog-belt flats near the Bay and around older 94401 and 94402 blocks, we routinely find condensation pooling inside single-wall metal ducts and mildew forming at the registers. It’s a wet-duct problem that inland crews almost never see, and it changes what repair work looks like.
Much of the housing stock in San Mateo dates to the 1940s through the 1960s, especially across 94402 and the neighborhoods north of downtown. Those homes were built with galvanized sheet-metal ductwork that has now spent sixty or seventy years collecting dust, soaking up humidity, and rusting at the seams. Many have had flex-duct retrofits added over the years, sometimes by handymen working without a plan, and the splices fail. Add in the growing number of mini-split additions in San Mateo, and you get a mix of old central ducting and newer zone systems that don’t always integrate cleanly. Repair work here means understanding what those original installers did, what the marine air has done to it since, and where the leaks are actually costing you money.
Styles & brands we work with
- Whole-home duct cleaning
- Dryer vent cleaning
- Camera inspection
- Sanitizing & deodorizing
Our Main San Mateo Services
Most San Mateo homeowners call us about two things: ducts that need a real cleaning with equipment that can show results, and dryer vents that have quietly become a fire hazard. Here’s how each one works in this city.
Air Duct Cleaning in San Mateo
In San Mateo’s damp marine air, duct interiors stay moist for months at a time. That means what we pull out of systems here is rarely just dust – it’s often a packed, humid layer of debris mixed with mildew. A proper cleaning in this city has to get inside the full duct run, not just vacuum the registers. We run Rotobrush rotary brush systems through the entire length of the ductwork and capture everything with Nikro HEPA-rated negative air, so the debris leaves the house instead of resettling into bedrooms. Homes with pets, kids, or anyone with allergy issues in San Mateo tend to notice the difference within a day. For the full breakdown of what this service includes and what it costs here, see Air Duct Cleaning in San Mateo.
Dryer Vent Cleaning in San Mateo
Dryer vents clog faster in San Mateo than in drier parts of the Bay Area, because the humid air makes lint stick to the inside of the vent instead of blowing through. That buildup is a leading cause of residential dryer fires, and it also makes your dryer run longer on every load. We clean the full vent run from the dryer to the exterior termination, not just the first few feet. In older San Mateo homes, the vent often runs a long horizontal distance through a crawlspace or out a roof – both make clogs more likely. See Dryer Vent Cleaning in San Mateo for the details on how we clear these and what the job costs.
Air Duct Repair in San Mateo
Air duct repair in San Mateo is a different job than it is in most of the Bay Area. The combination of sixty-year-old galvanized ductwork, decades of marine moisture, and the occasional retrofit gone wrong means we’re usually repairing rusted seams, crushed flex runs, and disconnected joints rather than simply sealing a small leak. When a duct system leaks in this climate, the moist outside air gets pulled into the system, and that’s when you start smelling mildew at the registers. A full repair – not just a patch – is what stops that. If you’re seeing the signs, we can walk you through the scope before any work starts. For more detail on the service itself, see Air Duct Repair.
Ductwork Repair
Signs you need it
Rooms that never reach the thermostat setpoint, a musty smell when the fan kicks on, and visible rust or condensation on exposed ductwork in the garage or crawlspace are the three signs we see most in San Mateo.
What it costs in San Mateo
Ductwork repair in San Mateo typically runs $180 to $850 depending on how many leaks, splits, or collapsed sections need to be addressed.
How we do it
We locate every leak with pressure testing, seal the accessible joints with mastic and Guardsman coatings, and replace any section of flex or metal duct that’s too far gone to seal.
Air Duct Replacement
Signs you need it
Ductwork that’s rusted through in multiple places, flex runs that have collapsed, or systems where the insulation has rotted from years of San Mateo humidity are candidates for partial or full replacement rather than repair.
What it costs in San Mateo
Air duct replacement in San Mateo ranges from $900 to $1,800 for partial system replacement, with full-system replacement running higher depending on the home’s layout and access.
How we do it
We remove the failed sections, install new metal or flex duct sized to the system’s airflow, seal every connection, and verify the static pressure before we finish.
What Air Duct Repair Costs in San Mateo
| Item | Typical range in San Mateo |
|---|---|
| Ductwork repair (sealing leaks, patching joints) | $180 – $850 |
| Air duct replacement (partial system) | $900 – $1,800 |
| HVAC duct installation (new runs for additions or mini-split tie-ins) | $1,200 – $2,500 |
Costs in San Mateo run toward the upper end when the original 1950s or 1960s ductwork was installed in tight crawlspaces, or when multiple sections have rusted from years of marine-layer humidity. We quote one flat price for the full job before any work begins, and that’s the number on the invoice.
How long does air duct repair take in San Mateo?
Most ductwork repair jobs in San Mateo are done in a single day. A partial air duct replacement typically takes one to two days, depending on crawlspace access and how much of the old system has to come out.
Does repairing ductwork actually lower energy bills in San Mateo homes?
Yes, especially in older homes with leaky single-wall metal ducts. Sealing leaks means conditioned air reaches the rooms it was intended for, so the system runs less. In San Mateo’s damp climate, it also stops humid outside air from being pulled into the ducts, which reduces the mildew risk.
Brands We Service in San Mateo
We work on ductwork and air-quality systems from every major manufacturer, and we stock common parts locally so San Mateo jobs don’t stall waiting on a shipment. When we install filtration or purification upgrades, we use Honeywell and Aprilaire products. See our brands for the full list. Turnaround on stocked parts is typically one to two business days; special-order items take whatever the supplier needs.
See the difference
Before
After
Before
After
Before
AfterPricing for Air Duct Cleaning Company in San Mateo, CA
| Service | Typical range in San Mateo |
|---|---|
| Ductwork repair | $180 – $850 |
| Air duct replacement (partial system) | $900 – $1,800 |
| HVAC duct installation | $1,200 – $2,500 |
| Ductwork installation (new or replacement) | $1,200 – $2,800 |
| Duct replacement (full system) | $2,500 – $4,500+ |
In San Mateo, prices push higher when we’re working in older homes with tight crawlspace access, when the marine moisture has rusted through multiple sections, or when a previous retrofit left flex duct tangled and kinked. Every estimate is one flat price per system, agreed before we start, so there’s no per-vent math and no surprise on the final invoice.
Neighborhoods We Serve in San Mateo
We cover all of San Mateo, including the ZIP codes 94401, 94402, 94404, and 94497.
- Baywood / Aragon
- Hillsdale / Beresford
- Shoreview / Parkside
- San Mateo Village / Eastern Addition
- Fiesta Gardens / North Central
Most San Mateo calls get a scheduled visit within a few business days. We’re based in Alameda, so the drive over the San Mateo Bridge or down 101 is short, and we group Peninsula jobs to keep the trip efficient.
Service Area – Cities Near San Mateo
In addition to San Mateo itself, we regularly work in Foster City, CA and Burlingame, CA along the Bay side, and San Bruno, CA plus South San Francisco, CA up the Peninsula. If you’re on the border between cities, call and we’ll tell you straight whether you’re in our regular service area.
Serving San Mateo, CA – Our Local Coverage Area
We’re based in the San Mateo 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 San Mateo
We schedule most San Mateo visits within two to five business days. Repairs that involve extensive rusted ductwork or duct replacement may need a longer appointment slot, but we’ll give you a firm date when you call (833) 620-5944, not a vague window.
Most duct sealing and repair work doesn’t need a city permit in San Mateo. New duct installation tied to a home addition or a major HVAC change may, and we’ll tell you if your project falls into that category before any work begins.
Yes. Many condos and townhomes in San Mateo have shorter duct runs and dedicated closets for air handlers, which can actually make repair work more straightforward. HOA rules about exterior dryer vent terminations vary, so we’ll coordinate access with your building manager when needed.
If you’re in San Mateo and your ducts are damp, musty, or leaking air into the crawlspace, call Everclear Air Duct Cleaning at (833) 620-5944. We’ll give you an honest assessment and a flat price for the repair, and we’ll show you the work when it’s done.
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
"Did the dryer vent while they were here for a small add on price. The dryer now finishes a load in one cycle instead of two."
- Javier Morales"Two guys, about three hours, plastic down at every register, and they wiped the vent covers before putting them back."
- Diego Delgado"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."
- Paul Schaefer