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.
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After
Before
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Before
AfterAir Duct Cleaning in San Mateo, CA
Dryer vent cleaning in San Mateo carries a different weight than it does in drier inland markets. The marine layer that sits over the mid-Peninsula most mornings pushes humidity into laundry rooms and crawl spaces, and a lint-clogged vent that would simply slow drying in Redwood City can turn into a mold source here. If you’re researching air duct or dryer vent work in San Mateo, call (806) 606-6902 and we’ll give you a written price before any work begins.
Why San Mateo Homes Are Different
San Mateo’s flatland neighborhoods, Baywood, Beresford Manor, Fiesta Gardens, are dominated by homes built between 1945 and 1975. The original duct systems in those houses were installed in low-clearance crawl spaces, often using duct board or early flex duct that has absorbed Peninsula moisture for decades. What technicians find in these crawl spaces is rarely just dust. The inner lining of 1950s and 60s duct board delaminates as it soaks up ground moisture, and it sheds fibers into the airflow. A cleaning call in Baywood regularly becomes a repair conversation because the duct itself has failed, not because the cleaning was inadequate.
The marine layer that blankets San Mateo most mornings produces meaningfully higher ambient humidity than Menlo Park or Redwood City a few miles east. Summer temperatures rarely spike enough to run air conditioning for extended periods, so ducts don’t get the drying airflow cycles that would slow biological growth between cleanings. That means mold and mildew contamination drives more cleaning calls in San Mateo than simple dust accumulation does. The damp, idle months leave their mark on every component, from the plenum to the registers.
Our Main San Mateo Services
Most San Mateo homeowners start with one of two concerns: the years of debris inside their heating and cooling ducts, or the accumulated grime on HVAC components that drags efficiency down. Both jobs here are shaped by the same damp crawl spaces and mild climate.
Air Duct Cleaning in San Mateo
A full air duct cleaning in San Mateo means removing debris from every duct run, the supply and return plenums, and the register boots. Because most flatland homes route ducts through low, damp crawl spaces, we photograph the inside of each run before and after. If the camera shows delaminated duct board rather than surface dust, the job changes and you’ll know exactly what was found. Air Duct Cleaning in San Mateo covers pricing, process, and what the photo record looks like.
HVAC Cleaning in San Mateo
HVAC cleaning addresses the blower wheel, evaporator coil, condensate pan, and the interior surfaces of the air handler. In San Mateo, coils that sit idle through the mild summer collect a damp film that attracts dust and then bakes on during winter heating cycles. The result is reduced airflow and a system working harder than its efficiency rating suggests. HVAC Cleaning in San Mateo walks through the steps and local pricing.
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.
BeforeAfterDryer Vent Cleaning in San Mateo
Dryer vent cleaning in San Mateo addresses a problem the marine layer makes worse. A vent that runs through a damp crawl space or up an exterior wall in Baywood or Beresford Manor collects lint, and that lint absorbs the same ambient moisture that’s already degrading the ducts. The result is a restriction that forces the dryer to work harder, drives up drying time, and creates the conditions where mold takes hold. We clean the entire vent run, photograph the inside before and after, and hand you a written price before any panel comes off. Our Dryer Vent Cleaning process is built around documentation, not assurances.
Lint Removal
Signs you need it
Clothes still damp after a full high-heat cycle, visible lint around the exterior vent flap, or a dryer that feels hot to the touch are all signs the vent is restricted.
What it costs in San Mateo
Lint removal in San Mateo typically runs $120 to $225 depending on vent length and how compacted the blockage has become.
How we do it
We run a rotating brush and negative-pressure extraction through the full vent run from the dryer connection to the exterior termination, then photograph the result.
Bird Guard Installation
Signs you need it
You hear scratching or chirping near the exterior vent hood, or you find nesting material bulging from the vent opening.
What it costs in San Mateo
A bird guard in San Mateo typically costs $95 to $180 installed, depending on the vent location and hood style.
How we do it
We remove any nesting debris, clean the vent run, and secure a galvanized or stainless guard over the termination point so birds can’t re-enter.
What Dryer Vent Cleaning Costs in San Mateo
| Item | Typical range in San Mateo |
|---|---|
| Lint removal | $120 - $225 |
| Bird guard installation | $95 - $180 |
| Full vent inspection with photo record | $75 - $140 |
How long does dryer vent cleaning take in San Mateo?
Most San Mateo dryer vent cleanings take 45 to 90 minutes. Longer vent runs through crawl spaces or multi-story walls can push the job toward two hours. We give you a written timeframe with the quote.
Will cleaning fix a dryer that takes two cycles to dry?
In most San Mateo homes with restricted vents, yes. If the vent is clear and clothes still come out damp, the issue is usually the dryer’s own blower or heating element, not the vent. We’ll photograph the vent so you can see what was actually there.
Duct Repair & Sealing in San Mateo
Duct repair and sealing in San Mateo often replaces rather than patches. The duct board installed in 1950s and 60s Baywood and Beresford homes has absorbed crawl-space moisture for decades, and by the time we open a panel the inner lining is frequently delaminated and shedding into the airstream. Sealing a joint on a duct that’s structurally failing does nothing. Our Duct Repair & Sealing starts with a camera inspection so the written scope matches what’s actually there.
Flex Duct Repair
Signs you need it
Rooms at the end of a run get weak airflow, or you see crushed, kinked, or sagging flex duct in the crawl space or attic.
What it costs in San Mateo
Flex duct repair in San Mateo typically runs $180 to $480 depending on the length of damaged duct and access difficulty in the crawl space.
How we do it
We cut out the damaged section, install new flex duct to the proper diameter and length, and seal every connection with mastic before photographing the finished run.
Duct Insulation
Signs you need it
You see condensation on duct surfaces, feel inconsistent temperatures in different rooms, or the existing insulation is compressed, torn, or missing sections.
What it costs in San Mateo
Duct insulation in San Mateo typically runs $300 to $900 depending on the number of linear feet and whether it’s applied in a crawl space or attic.
How we do it
We wrap the duct runs in insulation rated for the space, overlapping seams so moisture can’t reach the duct surface, and document the job with photos before sealing the access panel.
What Duct Repair & Sealing Costs in San Mateo
| Item | Typical range in San Mateo |
|---|---|
| Flex duct repair | $180 - $480 |
| Duct insulation | $300 - $900 |
| Duct sealing (mastic, per access point) | $120 - $280 |
Why do San Mateo ducts fail more than other cities?
San Mateo’s marine layer keeps crawl spaces damp year-round. The original duct board in 1945-1975 flatland homes absorbs that moisture, delaminates, and sheds fibers. Drier inland cities see far less of this failure mode.
Is duct sealing worth it if the ducts are original?
Only if the duct material is still intact. In San Mateo, we often find the duct board itself has failed and sealing joints won’t fix the underlying problem. The camera inspection tells us which situation you have, and you receive the photos either way.
Air Quality & Sanitizing in San Mateo
Air quality and sanitizing in San Mateo deals with the biological reality of a marine-layer climate. Mold spores that would die off in a hot, dry attic in the East Bay find San Mateo’s cool, damp ducts an ideal place to settle and grow, and the result moves through every room the system serves. After cleaning, we apply an EPA-registered sanitizer to the interior surfaces so what’s left behind is documented, not just described. Our Air Quality & Sanitizing service includes a written scope and a photo record of every treated surface.
Mold Treatment
Signs you need it
You smell a persistent musty odor when the system runs, or visible mold appears on register covers or the interior of the plenum.
What it costs in San Mateo
Mold treatment in San Mateo typically runs $350 to $850 depending on the extent of contamination and the number of duct runs affected.
How we do it
We mechanically clean the affected duct surfaces, apply an EPA-registered antimicrobial treatment, and photograph the before and after so you can verify what was addressed.
Odor Removal
Signs you need it
A stale, damp, or cooking smell comes from the registers even when the system hasn’t run recently, or the odor returns within days of cleaning.
What it costs in San Mateo
Odor removal in San Mateo typically runs $200 to $450 when done as part of a cleaning, depending on the size of the system.
How we do it
We identify the odor source, clean the surface where it’s embedded, and treat the duct interiors with a deodorizing agent matched to the specific contaminant.
What Air Quality & Sanitizing Costs in San Mateo
| Item | Typical range in San Mateo |
|---|---|
| Mold treatment | $350 - $850 |
| Bacteria sanitizing | $250 - $600 |
| Odor removal | $200 - $450 |
Will sanitizing fix ongoing mold in San Mateo ducts?
Sanitizing kills what’s there, but it won’t stop mold from returning if the ducts stay damp. In most San Mateo homes with recurring mold, the answer is duct replacement or encapsulation. We’ll show you the photos and give you a straight recommendation.
What product do you use for sanitizing?
We use an EPA-registered antimicrobial that’s labeled for HVAC surfaces. The product name and safety data sheet are included in the written scope you receive before work begins.
Brands We Service in San Mateo
Our crews work on systems built around Guardsman, Rotobrush, and Honeywell components, with the cleaning and treatment equipment to match. We carry common replacement parts for these brands on our local trucks, which keeps repair timelines in San Mateo short when a component fails mid-service. See our brands for the full roster.
Pricing for Air Duct Cleaning in San Mateo, CA
| Service | Typical range in San Mateo |
|---|---|
| Dryer vent lint removal | $120 - $225 |
| Bird guard installation | $95 - $180 |
| Flex duct repair | $180 - $480 |
| Duct insulation | $300 - $900 |
| Duct sealing (per access point) | $120 - $280 |
| Mold treatment | $350 - $850 |
| Bacteria sanitizing | $250 - $600 |
| Odor removal | $200 - $450 |
Crawl-space access in San Mateo’s older flatland homes is the biggest price variable. When ducts are hard to reach or the crawl space is too low to stand in, the labor increases and the written quote reflects that before work starts. Every price on this page is a range, not a teaser, and you’ll receive one flat price for your whole system under Haven Standard Clause 1 before any panel comes off.
Neighborhoods We Serve in San Mateo
We work throughout San Mateo, from the flatland tract homes to the hillside properties. The neighborhoods below are the ones we see most often, but we cover the entire city.
- Baywood
- Beresford Manor
- Fiesta Gardens
- San Mateo Knolls
- Shoreview
Most San Mateo calls are scheduled within a few business days. We don’t invoice until the written price is accepted and the work is complete, so the timeline is set by your schedule as much as ours.
Service Area - Cities Near San Mateo
Our San Mateo crews also cover neighboring Peninsula cities. Homeowners in Burlingame, CA, Millbrae, CA, and San Carlos, CA get the same written pricing and documented photo record. We also serve select properties in Belmont, MA through our network coverage, though the climate there produces different duct conditions than the Peninsula.
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 in San Mateo
Most appointments are scheduled within three to five business days. If a vent is fully blocked or a duct has visibly failed, call us and we’ll work the visit into the next available slot. The written price comes before any work starts.
For single-family homes, almost never. If you’re in a condo or townhome with shared walls, the HOA may have rules about exterior vent terminations. We’ll tell you what we see from the outside, and you can check your CC&Rs before we touch anything.
You receive a written scope of work, a before-and-after photo record of every duct run, and the 365-Day Done Right Promise in writing. That’s the standard deliverable on every San Mateo job, not an add-on.
Call (806) 606-6902 for a written price on any duct, vent, or air quality work in San Mateo. Tomas Reyes and the CleanRun team will show you the photos, put the price in writing, and let you decide from there.
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
"Flat price agreed up front, no per-vent add-ons at the end. That was the whole reason I did not call the coupon company."
- Suzanne B."The dryer vent was almost completely blocked with lint. They showed me the photograph and I understood immediately why the dryer had been running twice."
- Lucia M."They found a disconnected duct in the crawl space that had been dumping conditioned air under the house for years. Photographed it, quoted the repair, fixed it."
- Devon A.