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.
Air Duct Cleaning Company in San Mateo, CA
Kestrel Air Duct Cleaning serves San Mateo homeowners with duct and dryer vent work that accounts for the city’s specific conditions: persistent coastal humidity, 1950s-1970s housing stock, and crawl-space duct runs that collect condensation. Most jobs run between $450 and $850 for a whole-home duct cleaning, and we always give you a written price before any work begins. Call (469) 972-3151 to talk through what your San Mateo home needs.
Why San Mateo Homes Are Different
San Mateo sits in the Peninsula’s coastal fog belt, and that shapes nearly everything about ductwork here. The marine layer keeps relative humidity elevated year-round, even during the dry months when Redwood City and San Jose bake out. For the city’s large inventory of post-WWII ranch homes built from the late 1940s through the early 1970s, that means damp crawl spaces, condensation inside ducts, and mold growth at rates you’d rarely see ten miles east. Many of these homes were built without central air conditioning, so original duct systems have sat underused for decades, quietly accumulating biological growth in humid, unconditioned spaces beneath raised foundations. In neighborhoods like Baywood and San Mateo Village, we routinely find flex duct routed through sub-floor crawl spaces with condensation damage and rodent intrusion, a pattern driven directly by fog-kept moisture. A sealed crawl-space inspection is a standard first step here, not an add-on.
Our Main San Mateo Services
San Mateo homeowners call us about two core systems, and each service has its own dedicated San Mateo page with full pricing and local details.
Air Duct Cleaning in San Mateo
Air duct cleaning here means more than pulling dust from registers. In San Mateo, we’re usually addressing rust and biological growth in aging galvanized-metal supply lines or early fiberglass-lined ducts that have spent decades exposed to coastal moisture. Our negative-air extraction uses a Nikro or Abatement Technologies unit to pull contaminants out while Rotobrush rotary agitation dislodges debris at the duct wall, and HEPA filtration keeps loosened particles out of your living space. Read the full breakdown on our Air Duct Cleaning in San Mateo page.

Dryer Vent Cleaning in San Mateo
Dryer vents in San Mateo’s older homes often run long, twisting paths through crawl spaces, and lint plus fog-driven humidity makes an already restricted vent worse. We dislodge buildup along the full run and remove accumulated lint from behind the dryer and at the exterior termination point, checking airflow at both ends. See Dryer Vent Cleaning in San Mateo for local pricing and what to expect on the day of the job.

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 San Mateo
We service duct and dryer vent systems across all major residential brands found in San Mateo homes. We carry replacement filters and components for Honeywell, Aprilaire, and Guardsman systems, and our techs keep common parts stocked in the van so we don’t have to schedule a return trip for a simple swap. Learn more on our brands page.
Pricing for Air Duct Cleaning Company in San Mateo, CA
| Service | Typical range in San Mateo |
|---|---|
| Whole-home air duct cleaning | $450 - $850 |
| Single-story home (up to 10 vents) | $350 - $550 |
| Two-story home (11-20 vents) | $550 - $850 |
| Crawl-space duct inspection | $75 - $150 |
| Rust / corrosion treatment on duct runs | $150 - $400 |
| Dryer vent cleaning | $125 - $250 |
| Dryer vent reroute or termination repair | $200 - $500 |
| Filter replacement (Honeywell, Aprilaire, Guardsman) | $35 - $120 |
San Mateo’s damp crawl spaces push prices toward the upper end when our techs find biological growth or rust that needs treatment before cleaning makes sense. Whatever the job, you’ll have a written price in hand before a single vent is touched, no door-step revisions.
Neighborhoods We Serve in San Mateo
We cover San Mateo from the hills down to the flats, and our scheduling window keeps us moving through the city efficiently. Our typical availability puts us in San Mateo within a few business days of your call, and we’ll hold the appointment window we give you.
- Baywood
- San Mateo Village
- Aragon
- Beresford
- Shoreview
Service Area – Cities Near San Mateo
Our service area extends to the neighboring Peninsula communities, so if you have family or a rental property nearby we can often coordinate a single visit. We work in Burlingame, CA, Belmont, MA, Millbrae, CA, and San Carlos, CA, all under the same Kingswell Guarantee.
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
Our scheduling dispatch is coordinated from the San Francisco Bay Area office with crews serving San Mateo locally, so we can typically have a technician to your home within a few business days of your call. We’ll give you a defined arrival window and hold it.
Duct and dryer vent cleaning is routine maintenance and does not require a permit in San Mateo. If you live in an HOA-managed community, we’re happy to provide a written scope of work and proof of insurance if your association asks for it before scheduling.
Every San Mateo job carries the 365-Day Done Right Promise in writing. If the work falls short within the guarantee period, Kestrel returns and makes it right at no charge. It’s documented on every single job, not a verbal assurance.
Call (469) 972-3151 for a free estimate on duct or dryer vent work in San Mateo. We’ll give you a straight answer and a written price before any work starts.
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
"Bought an older home and the previous owners had pets everywhere. After Kestrel did the ducts the stale smell was just gone. On time, quick, and they showed me the filter they pulled."
- Preston Ngata"Our dryer was taking two cycles to dry a load. They cleaned the vent and pulled out a frightening amount of lint. Dries in one cycle now and honestly I feel better about the fire risk."
- Marcus Lee"Set up an appointment for the whole house plus the dryer line. They called the morning of to confirm, showed up in the window, and showed me pictures of the gunk they pulled out. Worth it."
- Terrence Boyd




Before
After
Before
After
Before
After