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.
Fast, Reliable Air Duct Cleaning Across San Leandro
Air duct cleaning in San Leandro averages $400 – $700 for a full system on a typical 1,200 – 1,800 sq ft home, with smaller ranchers running $300 – $450 and larger hillside homes with long attic runs landing between $650 – $950. We work throughout 94577, 94578, and 94579, and we know the housing stock here well enough to tell you before we arrive what kind of ductwork you’re probably dealing with. That matters more than you’d think in San Leandro, because a flatland bungalow off Bancroft Avenue and a hillside rancher above 580 fail from opposite causes. Call (833) 467-6681 if you want a straight answer about your system and a real quote.
Why Hallmark Air Duct Cleaning Is San Leandro’s Preferred Air Duct Cleaning Company
Most duct cleaning companies treat San Leandro like any other Bay Area city. We don’t, because we’ve spent enough time under the houses here to know the difference between a 1940s octopus system in the flats and a 1970s attic-fed run in the hills. Our Air Duct Cleaning team shows up with professional-grade equipment matched to the actual job, not a single vacuum and a drill. Rotobrush rotary agitation and Nikro industrial extraction systems let us handle the thick, matted debris in old galvanized trunks and the long flex runs in hillside attics with the right tool instead of forcing one approach onto every house.
Nelson Briggs, who runs Hallmark, built the company around a simple standard: every job should leave the system measurably cleaner than we found it. That means negative pressure containment with Abatement Technologies HEPA filtration running before we agitate anything. It means a camera inspection so you can see what got removed. And it means we don’t sell fogging treatments that wet the inside of your ducts without removing the debris feeding the problem. Homeowners in San Leandro call us back because the first job actually fixed what was wrong.
Styles & brands we work with
- Whole-home duct cleaning
- Dryer vent cleaning
- Camera inspection
- Sanitizing & deodorizing
Commercial Air Duct Cleaning in San Leandro
Commercial Air Duct Cleaning in San Leandro covers everything from retail storefronts along East 14th Street to medical offices near the San Leandro Plaza and property management portfolios spread across 94577, 94578, and 94579. Commercial systems run longer, carry more CFM, and serve more occupants per square foot than residential systems, so a clogged return or a moldy mixing box has faster consequences here. We see it regularly in older commercial buildings downtown, where decades of tenant turns have left layers of debris in the ductwork that no amount of filter changing will resolve.
Property Manager and Landlord Services
For multifamily properties and mixed-use buildings in San Leandro, we work around tenant schedules and common-area access constraints. A typical small commercial space of 2,000 – 4,000 sq ft runs $500 – $900 depending on access and how many rooftop or closet air handlers feed the system. Larger office or retail footprints push toward $1,200 – $2,500 when there are multiple zones and long branch runs.
Before and After Documentation
We photograph and record every commercial job. Property managers get a visual record of what the ducts looked like coming in and what they looked like after we pulled the debris, which matters when tenants raise air quality questions or when ownership wants proof the maintenance line item was money well spent.
Air Duct Cleaning Services in San Leandro
Air Duct Cleaning Services in San Leandro should start with an honest look at what’s actually in your system, and that’s how we open every residential job. We run a video inspection through the supply and return side before touching anything, so you’re not paying to clean ducts that are already clean, and so we can show you exactly what came out. Full system cleaning on a San Leandro rancher or bungalow typically takes three to five hours and covers every supply register, every return, the plenum, the trunk lines, and the blower compartment.
Older Galvanized Ducts in the Flats
The pre-war and post-war bungalows west of Bancroft Avenue in 94577 often still run original galvanized ducts with taped joints that have been separating for sixty or seventy years. These systems shed debris at every seam and pull crawlspace air into the supply stream, so cleaning them properly means sealing what can be sealed and showing you where the gaps are.
Attic Systems in the Hills
Homes in the 94578 and 94579 hills typically have longer runs through sun-baked attics, which puts real stress on flex duct and metal joints. The full length of every run gets walked with agitation and extraction, not just the first ten feet off the plenum, because that’s where the loose fill insulation and decades of thermal cycling tend to show up.
Trusted Brands We Service in San Leandro
We work on systems built around Honeywell filtration, Aprilaire media cabinets, and Abatement Technologies containment equipment, and as a San Leandro Trane service provider we know how these components interact with the ductwork around them. If your San Leandro home has a powered Aprilaire media filter that hasn’t been opened in three years, cleaning the ducts without addressing the filter cabinet means recontaminating clean runs within weeks. We don’t sell filters as a side item, but we’ll tell you honestly when the equipment you already own is working against you. That’s part of treating the system as a whole instead of just running a brush through a few registers.
Common Air Duct Cleaning Problems We See in San Leandro Homes
- Fog-fed moisture in the flatlands: The marine layer that rolls through 94577 keeps crawlspaces damp for months at a time, and when old galvanized ducts pull that air through leaky seams, dust mites and mold spores thrive inside the trunks. Flatland homes regularly show heavier microbial growth in the return side than hillside homes.
- Sun-baked attic runs in the hills: In 94578 and 94579, attic temperatures swing from freezing to well above 130 degrees through the year. That thermal cycling works metal joints loose and splits the outer jacket on older flex duct, so hillside systems tend to fail from air leaks and insulation breakdown rather than moisture.
- Original octopus-style plenums in pre-war bungalows: Downtown San Leandro and the streets off Bancroft Avenue have a surprising number of 1940s octopus systems still in service. These galvanized giants were never easy to clean, and if the previous contractor didn’t have rotary agitation equipment, chances are the risers were never touched.
- Fogging upsells that don’t remove anything: We follow up behind a lot of companies that sold a chemical fogging treatment as a “deep clean.” The ducts smell like disinfectant for a few days, then the original musty odor returns, because the debris feeding the microbial growth is still sitting in the trunk line. Source removal is the only fix that lasts.
See the difference
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After
Before
After
Before
AfterPricing for Air Duct Cleaning in San Leandro, CA
For a standard single-system home in San Leandro, our full Air Duct Cleaning in San Leandro service runs between $400 and $700. Smaller flatland bungalows with a single return and short runs stay in the $300 – $450 range. Hillside homes with multiple zones, long attic runs, or two systems push toward $650 – $950, and commercial spaces scale from there based on square footage and access. What changes the price is the length of the runs, the number of registers, and how much debris the camera inspection reveals. You get one flat price per system before we start, and that’s the number on your invoice. Call (833) 467-6681 and we’ll give you a free estimate based on the housing stock in your part of town.
We Also Serve Cities Near San Leandro
Our service area extends beyond San Leandro into San Leandro‘s neighboring communities. We regularly run calls into Castro Valley, Hayward, Alameda, and Oakland, and the local knowledge carries over. The marine influence along the flatlands and the warmer hills don’t stop at the city line, and we read the housing stock the same way wherever the job takes us.
Serving San Leandro, CA – Our Local Coverage Area
We’re based in the San Leandro 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 Leandro
Because the marine fog that pours through the Golden Gate settles over the 94577 flatlands and keeps crawlspaces and slab foundations damp for more of the year. Older galvanized ductwork with leaky seams pulls that moisture-heavy air into the return side, and the interior surfaces stay wet enough to support mold and dust mite activity. Hillside homes bake their ducts dry in the sun, so the same microbial growth doesn’t get the same foothold. If your flatland ducts smell musty, source removal is the real fix. Call (833) 467-6681 and we’ll get into the system and see what’s actually living in there.
No, and we say that plainly because we’ve followed behind too many fogging sales in San Leandro. Fogging wets the inside walls of the ductwork with a chemical agent, but if the debris and microbial colony are still sitting in the trunk line, the chemical smell fades in a week or two and the musty odor comes right back. The only durable fix is removing the debris that’s feeding the problem, which requires agitation and negative-pressure extraction. Anything less is a temporary scent, not a cleaning.
Two things: the length of the runs and the dominant failure mode. Hillside homes in San Leandro’s 94578 and 94579 zip codes typically have longer duct runs through sun-baked attics, which means more thermal cycling, more seam splits, and more loose fill insulation getting pulled into the returns. Flatland 94577 homes run shorter but wetter systems, where the problem is microbial growth and taped-joint failure. The equipment has to match the issue: longer agitation runs and full-length video for hillside attics, heavier extraction and source removal for damp flatlands.
Carefully, and with rotary agitation equipment that most residential cleaning contractors don’t carry. The octopus systems in the pre-war bungalows off Bancroft Avenue have short riser runs that were never accessible to standard brushes, and the galvanized trunks have taped seams that have been leaking since the Truman administration. We run negative pressure at the air handler, agitate the risers individually, and inspect with a camera before and after. The owner usually gets to see footage of debris that’s been accumulating since before they were born.
It changes the portion of that pollution that’s coming from your own ductwork, which is the only part you can actually do something about. In San Leandro, where fog-fed damp and sun-baked thermal cycling both send debris into the airstream, a genuine source removal clean measurably reduces the particulate load your registers are pushing into the rooms. But it won’t fix pollution coming from cooking, candles, outdoor air, or a dirty crawlspace that keeps leaking air through foundation cracks. That’s why we inspect first and clean when the ducts are actually the source, rather than selling a clean your system doesn’t need. Call (833) 467-6681 for an honest assessment.
Get Your San Leandro Ducts Cleaned Right This Time
If you’re in San Leandro and your ducts haven’t been inspected in years, or a previous cleaning didn’t hold up, call Hallmark Air Duct Cleaning at (833) 467-6681. Nelson Briggs and the team will tell you straight what’s in your system, what it’ll take to remove it, and what it costs before anyone starts work. Free estimates, one flat price per system, and real documentation when the job is done. That’s the standard.
Written by Nelson Briggs, Owner at Hallmark Air Duct Cleaning, serving San Leandro and the East Bay with equipment-serious duct cleaning, repair, and dryer vent safety.