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.
Fast, Reliable Air Duct Cleaning Across San Carlos
Air duct cleaning in San Carlos typically runs $450-$850 for a whole-home residential system and $800-$2,400 for commercial buildings, with most jobs completed in a single scheduled visit. Our crews dispatch from the San Francisco Bay Area office and carry Rotobrush and Nikro equipment to neighborhoods from the eastern flatlands near the San Carlos Airport (KSQL) traffic pattern up through the hillside streets west of El Camino Real. We’ve worked enough 1950s and 1960s ranch homes here to know which attics have brittle original flex duct and which crawl spaces pool marine-layer moisture overnight. Call (323) 918-4345 for a free written estimate before any work starts.
Why Morton’s Air Duct Cleaning Is San Carlos’s Preferred Air Duct Cleaning Company
We’ve been part of the Cedarwell family since 2005, and our technicians know the difference between a flat-lot ranch near Laurel Street and a hillside custom home off Melendy Drive before they step out of the van. That matters because the duct runs, access points, and contamination patterns are completely different.
San Carlos homeowners tell us the same thing repeatedly: they want to know the full price before anyone touches the system, and they want proof the job was done. We give both. A written price is provided before any work starts, every time, with no exceptions. Every completed job includes a photo of the clean-up before the crew leaves, so you see the condition we left your home in.
Our calls are answered by a live person 24/7, not a voicemail tree. Background-checked, uniformed technicians arrive with shoe covers and drop cloths already in hand. We work quietly around nap schedules when kids are home, and we choose pet-safe products where the option exists. The 365-Day Done Right Promise is stamped on every job, not just offered when asked.
Residential Air Duct Cleaning in San Carlos
Residential Air Duct Cleaning in San Carlos means source removal from the full supply and return network in homes that are overwhelmingly 1950s-1960s California ranch-style construction, many still running original fiberglass duct board or early flex duct that has brittled at the joints. A typical whole-home residential clean in San Carlos runs $450-$850 depending on system size, access difficulty, and whether the ductwork needs resealing after agitation. Most single-family jobs take four to six hours. We set up negative pressure with HEPA filtration, run mechanical agitation tools through each branch, and inspect with a camera before we seal up.
Supply and Return Branch Cleaning
Supply ducts push conditioned air to your rooms; return ducts pull it back. In San Carlos’s older ranches, we regularly find the return side packed with decades of drywall dust and degraded liner fragments that the blower motor is essentially grinding through. We clean both sides, not just the supplies where the visible registers sit.
Video Inspection Before and After
Our techs feed a camera through the trunk line so you see what we see. After agitation and negative-pressure extraction, we run it again. The before-and-after footage belongs to you, and it’s the only honest way to verify source removal happened inside a duct you cannot reach yourself.
Commercial Air Duct Cleaning in San Carlos
Commercial Air Duct Cleaning in San Carlos covers office suites on El Camino Real, medical tenant spaces near Holly Street, and light industrial units where code compliance and indoor air quality affect both occupancy permits and employee retention. A typical commercial job in San Carlos runs $800-$2,400 depending on square footage, HVAC zone count, and whether the building operates on a VAV or constant-volume system. We schedule around your business hours, use containment where occupied spaces remain active, and provide documentation for property managers and facilities teams.
Multi-Zone System Coordination
Commercial buildings in San Carlos often run three to six independent zones. We isolate and clean each zone sequentially so your staff isn’t sitting in a fully offline HVAC environment for a full workday. Our Nikro portable extractors fit standard ceiling tile grids without cutting access holes.
Post-Clean Documentation for Property Managers
Every commercial job ends with a written summary of what was accessed, what was removed, and photo documentation of filter changes and clean-up. Property managers in San Carlos use these for tenant files and annual maintenance records.
Trusted Brands We Service in San Carlos
We carry professional-grade equipment from Nikro, Honeywell, and Aprilaire, and we stock common replacement parts for San Carlos customers so a cleaning visit doesn’t turn into a two-week wait for a specialty fitting. Our Rotobrush systems handle the agitation work inside residential branch lines, while Nikro negative-air machines manage commercial extraction volume. Honeywell and Aprilaire media filters are available same-day for most standard residential returns. That matters in San Carlos because the particulate load from KSQL traffic patterns burns through standard filters faster than Peninsula averages, and homeowners shouldn’t have to order online and wait when a replacement is urgent.
Common Air Duct Cleaning Problems We See in San Carlos Homes
- Gray particulate film on supply registers in eastern flatland homes. Homes inside the San Carlos Airport traffic pattern accumulate a fine gray film noticeably faster than comparable-age homes in Belmont or Redwood City. The ultrafine combustion byproducts from piston aircraft burning leaded 100LL avgas pass standard filters and deposit inside duct runs, shortening inspection and cleaning intervals below mid-Peninsula norms.
- Collapsed flex duct joints in 1950s-1960s ranches. Original flex duct liner has often brittled and sagged at connections, creating debris traps where drywall dust and particulate pack against restricted airflow. The blower motor strains, energy bills creep up, and the home never quite balances temperature between rooms.
- Microbial growth in hillside duct insulation from marine-layer moisture. San Carlos sits in a fog-sheltered corridor, but marine layer still pushes inland regularly. In hillside homes west of El Camino Real, cool damp air pools overnight on uninsulated metal sections and inside aged flex duct insulation, feeding growth that a surface fogging treatment cannot reach.
- Skipped duct sections in hard-access multi-level runs. Long convoluted duct runs in hillside custom homes have access points that less thorough crews simply skip. The homeowner gets a partial clean, pays full price, and wonders why the system still smells musty.
Pricing for Air Duct Cleaning in San Carlos, CA
A typical whole-home residential air duct cleaning in San Carlos runs $450-$850. Commercial systems start around $800 and scale to $2,400 for larger multi-zone buildings. Dryer vent cleaning, when bundled with a full duct job, typically adds $120-$180.
What moves you within those ranges: system size (number of supplies and returns), access difficulty (crawl space versus attic versus basement), condition of existing ductwork (collapsed sections need resealing, which adds material and labor), and whether video inspection or post-clean sanitizing sealant is requested. We do not quote per-vent pricing. One flat price per system, agreed in writing before any work starts. No invoice surprises.
Call (323) 918-4345 for a free estimate. We’ll ask about your home’s location in San Carlos, approximate age, and system type, then give you a written range before we schedule.
We Also Serve Cities Near San Carlos
Our crews regularly work Air Duct Cleaning in San Carlos and the surrounding mid-Peninsula area, including Belmont, Redwood City, Atherton, and Menlo Park. If you’re just outside San Carlos city limits near the county line or in an unincorporated pocket between these towns, call us and we’ll confirm coverage. Scheduling and dispatch are coordinated from our San Francisco Bay Area office.
Serving San Carlos, CA - Our Local Coverage Area
We’re based in the San Carlos 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 Carlos
San Carlos Airport (KSQL) operates entirely within city limits, and piston aircraft burning leaded 100LL avgas generate ultrafine lead-containing particulates that infiltrate duct systems downwind of flight paths. Homes in the eastern flatlands accumulate a distinct gray film on supply registers faster than comparable homes in Belmont or San Mateo, making filter and duct inspection intervals genuinely shorter. Call (323) 918-4345 for an exact quote on your home’s cleaning schedule.
No. Fogging a chemical into the duct does not remove the source material that microbial growth feeds on, and it does not reach the interior insulation of aged flex duct where marine-layer moisture in San Carlos hillside homes actually promotes growth. Source removal with mechanical agitation and negative-pressure extraction is the only method that addresses both the debris and the moisture retention. Call (323) 918-4345 and we’ll show you the camera footage that proves the difference.
Longer runs take more time and may require additional access points, but every branch gets cleaned. Our techs inspect with a camera first to locate collapsed sections or debris concentration, then sequence the agitation and extraction to maintain negative pressure throughout. We protect floors and furniture along the access path, and we work to the Cedarwell C.A.R.E. values: shoe covers, drop cloths, and quiet tools where possible. Call (323) 918-4345 to discuss your specific layout.
Pay for source removal: negative-pressure HEPA extraction, mechanical agitation, and video verification. Skip the fogging ‘sanitiser’ upsell unless you have a specific post-remediation need confirmed by an industrial hygienist. Pay for resealing if your 1950s or 1960s ductwork has collapsed joints. Skip per-vent pricing entirely; one flat system price is the only honest structure. A typical residential job in San Carlos runs $450-$850. Call (323) 918-4345 for a written quote with no upsell pressure.
Yes, and we recommend bundling them. Dryer vent cleaning typically adds $120-$180 when done with a full duct job. The lint pathway is a separate fire-safety issue from your HVAC ductwork, but our crews handle both with the same visit, the same upfront pricing, and the same photo documentation before we leave. Call (323) 918-4345 to schedule both.
Written by Paul Adeyemi, Owner at Morton’s Air Duct Cleaning, serving San Carlos since 2005.




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