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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AfterFast, Reliable Air Duct Cleaning Across Oakland
Air duct cleaning in Oakland typically runs $350 – $650 for a full residential system, with most jobs completed in a single visit. We’re Hollis Air Duct Cleaning, and our crews work Oakland neighborhoods from the Hills down to the flatlands, dispatching from our San Francisco Bay Area office. Call (361) 326-5060 for a free estimate with a written price before any work starts.
Oakland’s mix of fog-damp flatlands and fire-exposed hills creates duct problems you won’t find in neighboring cities. Our technicians know the difference between a Rockridge crawlspace with mold-saturated flex duct and an Oakland Hills home where Diablo winds have packed wildfire ash past the filter into galvanized steel runs. That local knowledge changes what equipment we bring, how we set up containment, and whether we’re quoting a cleaning or a cleaning-plus-sealing job.
We serve the full range of Oakland housing: pre-war Craftsman bungalows in Temescal, Victorians in Pill Hill, post-war ranches in the Upper Laurel, and hillside rebuilds off Skyline Boulevard. Each has its own duct material, its own failure mode, and its own realistic cleaning interval. We don’t guess. We inspect first.
Why Hollis Air Duct Cleaning Is Oakland’s Preferred Air Duct Cleaning Company
Hollis has been part of the Garrison Partners family since 2004. The Garrison Standard means we arrive inside the quoted window, price in writing before touching equipment, complete the job by the book, and leave the site clean. No exceptions.
Our 365-Day Done Right Promise covers every job in writing. If the work fails within a year, we return and make it right at no charge, including a free second visit. That’s not a slogan. It’s printed on every invoice.
Our technicians are background-checked and uniformed. You know who’s walking into your home before they arrive. Phones are answered by a live person 24 hours a day, seven days a week. No voicemail loops, no callback queues, no waiting until Monday for scheduling.
We price by the complete system, not by the vent. The figure you approve is the figure you pay. No add-ons at the door, no per-vent upcharges, no bait-and-switch.
Ductwork Cleaning in Oakland
Ductwork Cleaning in Oakland is rarely a simple vacuum job. The city’s housing stock – dominated by pre-1950 Craftsman bungalows, Victorians, and post-war stucco ranch homes – often contains original galvanized steel or asbestos-wrapped ductwork prone to internal corrosion, loose joints, and rodent intrusion. Cleaning frequently turns into sealing or replacement work once we see what’s inside.
We use two primary methods, chosen after inspection. The rotary brush system, powered by Rotobrush equipment, physically scrubs debris from duct walls while a vacuum extracts it. This works well for light-to-moderate buildup in intact metal ducting. For heavier contamination, or when mold or wildfire ash is present, we deploy negative-air machines from Nikro paired with HEPA filtration from Abatement Technologies. These create suction throughout the entire system, preventing debris from escaping into living spaces during cleaning.
A typical residential Ductwork Cleaning in Oakland runs $350 – $550 for a single-system home. Larger homes with multiple zones, commercial buildings, or jobs requiring extensive sealing afterward fall in the $500 – $850 range. We provide the exact figure after inspection, in writing, before any work begins.
Supply Duct Cleaning
Supply ducts carry conditioned air to your rooms. In Oakland Hills homes, these lines often pack with fine wildfire ash that migrates past standard filters during Diablo wind events. The ash behaves like silt – dense, abrasive, and easily re-aerated. We verify supply line integrity before cleaning; loose joints in old galvanized steel will simply leak the debris back into your air after we leave.
Return Duct Cleaning
Return ducts pull air back to the handler for reconditioning. In damp flatland neighborhoods like Rockridge and Temescal, these runs frequently harbor mold growth on flex duct interiors. Charcoal filtration alone won’t remediate biological contamination. We inspect with a camera first, then select agitation tools and antimicrobial treatment appropriate to what we find.
Air Duct Inspection in Oakland
Air Duct Inspection in Oakland should happen before any cleaning quote is finalized, and we insist on it. The inspection reveals whether you’re looking at routine maintenance or a remediation project, and it prevents the surprise add-ons that give this trade a bad reputation. We use video inspection equipment to document conditions inside your full system – supply lines, return lines, trunk, and plenum – so you see what we see.
Most Oakland homeowners schedule an inspection when they notice persistent dust after cleaning, uneven heating or cooling between rooms, musty odors when the system runs, or visible debris around registers. After wildfire season, we also get calls from Hills residents who’ve been running systems during smoke events and want to know what got past the filter.
An Air Duct Inspection in Oakland costs $125 – $195 for a standard residential system. If you proceed with cleaning, we apply the inspection fee toward the work. Commercial inspections for multi-zone systems in office buildings or retail spaces run $250 – $400 depending on system complexity.
Video Documentation
We record the full inspection and provide you with the footage. You’ll see joint separations, rodent damage, ash accumulation, or mold growth in real time. This isn’t a sales tool – it’s documentation that protects both of us. When we quote sealing or replacement work, the video shows exactly why.
Written Report and Pricing
Within 24 hours of inspection, you receive a written report with findings, recommended work, and a fixed price. The price does not change at the door. If we discover additional problems during cleaning that weren’t visible on camera, we stop and call before proceeding. No surprises.
Trusted Brands We Service in Oakland
We stock filters, replacement components, and sealing materials from Aprilaire, Abatement Technologies, and Guardsman, plus we maintain Rotobrush and Nikro cleaning equipment in our local inventory. For Oakland homeowners, that means faster turnaround – no waiting for parts shipments from out of state when your system needs a filter upgrade or a damaged section replaced. We carry MERV 13 and higher filters appropriate for wildfire smoke filtration, which standard hardware-store stock often doesn’t include. If your system uses Honeywell or Aprilaire whole-house filtration, we service those units and can integrate upgraded media during your cleaning appointment.
Common Air Duct Cleaning Problems We See in Oakland Homes
- Wildfire ash packed in Hills duct systems. The fine particulate from Diablo wind events migrates past standard filters and settles in supply and return lines. It doesn’t behave like household dust – it’s denser, more abrasive, and requires HEPA-contained extraction to remove without redistributing through the house.
- Mold growth in fog-damp flatland crawlspaces. The marine layer rolling through the Golden Gate keeps humidity elevated in neighborhoods like Rockridge and Temescal. Flexible ducting in crawlspaces grows surface mold that a simple vacuum pass won’t kill. We treat with EPA-registered antimicrobial and verify with post-cleaning inspection.
- Rodent-damaged flexible ducting in attic systems. Raccoons and squirrels tear apart old flex duct in Oakland flatlands, leaving droppings, nesting material, and insulation debris inside the air path. This requires section replacement, not just cleaning, to meet NADCA remediation standards.
- Corroded galvanized steel with loose joints in pre-1950 housing. Original ductwork in Craftsman and Victorian homes has reached the end of its service life. Cleaning without sealing is temporary – the joints leak conditioned air and re-admit debris immediately after we leave. We quote sealing with mastic or full replacement when integrity is compromised.
Pricing for Air Duct Cleaning in Oakland, CA
Here’s what air duct cleaning costs in Oakland’s market, based on system type and condition:
| Service | Typical Range |
|---|---|
| Residential full-system cleaning (single zone, intact ductwork) | $350 – $550 |
| Residential cleaning with sealing or minor repairs | $500 – $750 |
| Multi-zone or large home (3,500+ sq ft) | $650 – $850 |
| Commercial duct cleaning | $800 – $1,500+ |
| Air Duct Inspection (applied to work if proceeding) | $125 – $195 |
| Dryer vent cleaning (standalone) | $150 – $250 |
What moves the price: system size, duct material and accessibility, presence of mold or wildfire ash requiring HEPA containment, extent of rodent damage, and whether sealing or section replacement is needed. We do not quote per-vent pricing – that’s the teaser-rate game that balloons at the door. One flat price per system, agreed in writing, before work starts.
Call (361) 326-5060 for a free estimate. We’ll schedule an inspection, show you what we find, and give you a written price you can compare without pressure.
We Also Serve Cities Near Oakland
Our Air Duct Cleaning in Oakland crews also work in Alameda, Piedmont, Emeryville, and San Leandro. Each city has its own housing stock and climate factors, but the same Garrison Standard applies: written price, written guarantee, background-checked technicians, and a clean site when we leave. If you’re on the border of Oakland and one of these neighbors, we’ll dispatch the closest available crew and honor the same pricing structure.
Serving Oakland, CA - Our Local Coverage Area
We’re based in the Oakland 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 Oakland
Every 6 – 12 months, depending on your specific exposure. Open-land and unpaved-road dust around the Oakland Hills and East Oakland fringe loads ducts faster than a standard one-year interval. Wood heat produces fine ash that accumulates in supply lines. A fixed annual cleaning often misses the mid-season reload. We recommend an inspection at 6 months to establish your actual accumulation rate, then set a realistic interval based on what we find. Call (361) 326-5060 to schedule.
Yes, in flatland neighborhoods where the marine layer keeps crawlspace and attic humidity above 60% for extended periods. Rockridge, Temescal, and similar areas see surface mold on flexible duct interiors that charcoal filtration won’t address. The mold isn’t always visible at registers – it grows on the interior of flex duct where condensation collects. Camera inspection reveals it. We treat with antimicrobial and recommend humidity control at the air handler. Call (361) 326-5060 if you smell mustiness when your system runs.
Fine ash that behaves like silt – dense, migratory, and abrasive. It packs supply and return ducts, passes standard filters, and re-aerates when the system cycles. In the Oakland Hills burn scar areas, we’ve found charred debris and fine gray ash accumulated years after the source fire. This material requires HEPA-contained negative-air extraction, not standard vacuuming, to remove without redistributing through the home. We pulled up to a 1920s Craftsman bungalow off Thornhill Drive where the registers were puffing fine gray ash after the last Diablo wind event. Camera inspection showed supply and return ducts packed with wildfire debris. We set up negative pressure with a HEPA-filtered Abatement Technologies unit, ran Rotobrush agitation tools through every branch, and swapped the existing filter for a higher MERV rating at the air handler before resealing the loose joints.
Because the housing stock is old and the ductwork is older. Pre-1950 Craftsman and Victorian homes frequently contain original galvanized steel or asbestos-wrapped ductwork with internal corrosion and loose joints. Cleaning without sealing simply leaks the debris back into your air. In flatland attics, raccoons and squirrels tear flexible ducting, leaving contamination that vacuuming won’t remediate under NADCA standards. We inspect first and quote honestly – sometimes cleaning, sometimes cleaning plus sealing, sometimes section replacement. The price is fixed before we start, whatever the scope.
Yes. Dryer vent cleaning is a standard add-on to our Air Duct Cleaning service, and we recommend it for any Oakland home with a vent run longer than 15 feet or with multiple bends. Lint accumulation is a genuine fire hazard, especially in older housing where original vent routing may not meet current code. Standalone dryer vent cleaning runs $150 – $250. We’ll inspect the full run, remove blockages, and verify airflow with a meter before we leave. Call (361) 326-5060 to add it to your appointment.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Oakland since 2004.