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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Before
AfterAir Duct Cleaning Company in Foster City, CA
Air duct cleaning in Foster City means working on homes built in a narrow window between 1965 and 1985, most of them still running original galvanized sheet-metal ductwork with failing joints and brittle tape. Add in daily marine fog off the bay, salt-laden air, and humidity that barely dips below 60% most mornings, and you have a specific set of problems: mold colonization inside return boots, corroded connections at register collars, and damp dust packed into flex runs. We’re Morton’s Air Duct Cleaning, and we approach every Foster City job with that reality in mind. Call (323) 918-4345 and we’ll walk through what your system likely needs before you spend a dollar.
Why Foster City Homes Are Different
Foster City sits on reclaimed bay tidal flats, threaded with lagoon water on nearly every residential block. That geography is not a backdrop; it is the reason ductwork here fails the way it does. Ground-floor units in the lagoon-adjacent condos and low-rise townhome clusters pull damp air through slab-on-grade foundations, because the pilings over bay mud leave no raised crawlspace to act as a buffer. That moisture moves straight into return-air boots, where condensation pools and visible mold forms near supply registers. We see this pattern constantly in the neighborhoods around Edgewater, Shell, and Beach Park Boulevards.
The housing stock compounds it. Because Foster City was master-planned and built in one compressed development era, a large share of homes still contain 40 to 55-year-old original ductwork: galvanized sheet metal with failed duct tape at the seams and deteriorating flex connectors. Salt air off the open bay accelerates corrosion at those joints faster than in drier cities just a few miles inland like San Mateo or Belmont. In practice, that means cleaning here is never just about pulling dust. It is about locating every compromised connection and telling the homeowner exactly what we found, with photos, before we recommend any next step.
Our Main Foster City Services
Foster City homeowners call us most often about two things: the dust and mold accumulating inside their aging duct runs, and the lint building up in dryer vents that vent through roofs or side walls close to lagoon-facing exteriors. Here is what each job involves here.
Air Duct Cleaning in Foster City
Most Foster City homes we clean have never had their ducts opened since the house was built. That means 40-plus years of dust, pet hair, and, near the lagoons, moisture-driven mold growth coating the inside of the runs. We use truck-mounted Rotobrush and Nikro equipment to agitate and extract everything from supply trunks down to individual register boots, with a focus on the return side where damp air pools. The job includes a written price before work starts and photo documentation of every access point afterward. Full details are on our Air Duct Cleaning in Foster City page.
Dryer Vent Cleaning in Foster City
Foster City’s damp, salty air accelerates lint clumping inside dryer vents, and many of the 1970s-era homes here run long vertical vent runs that trap that lint faster than shorter side-wall configurations. A restricted vent is a fire risk, plain and simple, and it also doubles drying time. We clean the full run from the dryer connection to the exterior termination, inspect the joints, and show you before-and-after photos of the interior. For a full breakdown of what the job includes here, see our Dryer Vent Cleaning in Foster City page.
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 Foster City
We work on systems and components from Aprilaire, Abatement Technologies, Guardsman, and Rotobrush, among others. Our crews carry common replacement parts for these brands locally, so minor component swaps often happen the same visit. See our brands for details on which systems we service.
Pricing for Air Duct Cleaning Company in Foster City, CA
| Service | Typical range in Foster City |
|---|---|
| Full air duct cleaning (whole home, up to 12 vents) | $450-$690 |
| Full air duct cleaning (13-20 vents) | $650-$890 |
| Full air duct cleaning (21+ vents) | $850-$1,100 |
| Post-construction / renovation duct cleaning | $550-$850 |
| Mold remediation prep cleaning | $500-$780 |
| Dryer vent cleaning (single run, roof termination) | $145-$225 |
| Dryer vent cleaning (long run, 15+ ft, multi-story) | $185-$300 |
Foster City prices trend toward the upper part of each range when we are dealing with 40-plus-year-old original ductwork, extra access cuts in tight utility closets, or mold-damaged flex connections that need replacement rather than cleaning. Whatever the job shape, you get one written price for the entire system before we start, and that number does not change when the invoice arrives.
Neighborhoods We Serve in Foster City
We cover all of Foster City, from the lagoon-facing condos near Leo J. Ryan Park up through the single-family streets around Sea Cloud and the townhome clusters near Edgewater. Scheduling is straightforward: in most cases we confirm a visit within a day of your call and arrive at the requested window, with the full written quote sent before the crew packs up.
- Edgewater
- Sea Cloud
- Beach Park Boulevard area
- Shell Boulevard corridor
- Foster City Marina area
Service Area – Cities Near Foster City
We schedule Foster City visits from our San Francisco Bay Area office, and we also serve homeowners across the wider Bay and California region. If you are just outside Foster City, we are available in San Francisco, CA, San Jose, CA, and across the Bay Area. For friends or family farther afield, our teams also cover Los Angeles, CA and San Diego, CA.
Serving Foster City, CA - Our Local Coverage Area
We’re based in the Foster City 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 Foster City
We confirm most Foster City visits within one business day of your call and arrive at the scheduled window. Our crews are scheduled from our Bay Area office and serve Foster City locally, so we are not driving from another region. Call (323) 918-4345 and we will give you a firm date on the spot.
For interior duct and dryer vent cleaning, no. The work happens entirely inside your unit or home, so HOA approval is not needed. If your dryer vent termination is on an exterior wall or roof in a shared building, the cleaning itself still qualifies as routine interior maintenance. We are happy to note that on your written quote if your HOA asks for documentation.
The bay moisture is the difference. With no raised crawlspace to buffer ground moisture, damp air enters return boots directly, and combined with salt air and the age of Foster City’s ductwork, you get corrosion and mold growth faster than in San Mateo or Belmont. Homes here simply live in a wetter, saltier environment. Call (323) 918-4345 and we will explain what we see in your specific system.
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 Foster City Customers Say
"Ducts and dryer vent both. They put runners down the whole hall and wore booties. Spotless after, and they showed me photos of what came out. Worth every penny."
- Bonnie Vo"Spotless work. They laid drop cloths everywhere and I was honestly impressed there was zero mess at the end. Showed me the dirt they pulled out so I could see it was worth it."
- Shelby Dunham"New house, old dusty ducts. They were gentle in the house, laid down drop cloths, and double checked every register was sealed back up. Air smells fresh now."
- Scott Hemmings