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 Pasadena
Air duct cleaning in Pasadena typically runs $400 – $900 for a full single-family system, depending on home size, duct condition, and whether repairs like sealing or reconnecting runs are needed. Most jobs in Pasadena take 3 – 5 hours, and we schedule within the week, not the month. Homes here, especially those built before 1940, carry decades of dust in their original ductwork, and a standard clean often reveals disconnected runs or crushed sections that need repair before the system can move air properly. Call us at (626) 469-5477 for a written quote before any work starts.
We know Pasadena’s older homes because we work in them every week: Bungalow Heaven Craftsman houses, Spanish Colonials south of the 210, the expanded bungalows near Madison Heights, and the hillside properties above Linda Vista. These homes need a different approach than a newer suburban tract house. We inspect before we agitate, we document what we find, and we price the full job in writing before a single tool comes off the truck.
Why Hollis Air Duct Pasadena Is Pasadena’s Preferred Air Duct Cleaning Company
Hollis Air Duct Pasadena operates under The Garrison Standard, which means a written price before any work starts, a 365-Day Done Right Promise on every job, and technicians who arrive in uniform, background-checked, and inside the quoted window. Roy Castellanos leads the Pasadena crew. When you call, a live person answers at (626) 469-5477. No voicemail loops, no callback queues. That matters when you’re scheduling around a workweek and a house full of dust.
Dispatch and scheduling for our Pasadena work is coordinated from the brand’s Los Angeles office, and our crews serve Pasadena locally. We’re not a national chain running the same playbook in every market. This location is independently owned and operated, which means the technicians who walk your crawlspace answer to a local business that has to look you in the eye. Our equipment roster includes Rotobrush rotary brush systems, Nikro negative-air machines, and filtration products from Honeywell and Aprilaire. We use commercial-grade tools because century-old ducts in Pasadena don’t respond to a hardware-store vacuum.
Styles & brands we work with




Air Duct Repair in Pasadena
Air duct repair in Pasadena means restoring disconnected runs, sealing leaking joints, and replacing crushed or corroded sections so the air you pay to heat or cool actually reaches the rooms. In older Pasadena homes, repair is often the real fix, not cleaning. We find disconnected runs in unpermitted additions all the time, especially in expanded bungalows where a past owner added a room and tied into the old duct system with whatever was on hand. The cleaned air never reaches those rooms because the duct isn’t actually connected.
Disconnected and Crushed Runs
A camera inspection shows us exactly what’s happening inside the duct, including runs that have pulled apart at the joints or collapsed under the weight of settling foundations. In Pasadena’s 1920s and 1930s homes, undersized gravity-heating ducts are common. They were designed for a coal furnace, not a modern forced-air system, and they’re frequently crushed or blocked by decades of debris. We reconnect what’s sound, replace what isn’t, and seal every joint with modern mastic. Air duct repair in Pasadena typically adds $150 – $400 to a cleaning job, depending on what we find and how many runs are affected.
Sealing Leaky Ducts
Leaky ductwork pulls dust from crawlspaces and attics into the air you breathe. We seal joints and seams with duct sealing mastic, not tape, because mastic actually holds on galvanized steel. On a typical Pasadena home with original ducts, sealing adds $200 – $500 to the total. It’s the difference between a system that leaks 20% of its air into the crawlspace and one that delivers what the blower pushes.
Ductwork Cleaning in Pasadena
Ductwork cleaning in Pasadena is source removal, not surface dusting. We use negative-air pressure to capture debris at the point of contact, not blow it through the rest of the house. Our Nikro negative-air machines put the duct under vacuum while HEPA filtration holds the particles the agitation releases. For older Pasadena systems, especially those with fragile materials or historic registers, we adjust the agitation method to match the duct, not the other way around. Ductwork cleaning for a typical 3 – 4 bedroom Pasadena home runs $450 – $750.
Full System Cleaning
Supply ducts, return ducts, the air handler cabinet, and the blower wheel all need attention. Air leaks and bypass mean the system pulls unfiltered air from unfinished spaces, and that air carries whatever is in the crawlspace: insulation fibers, rodent evidence, settled dust. A full system cleaning in Pasadena runs $550 – $900. We document the job with before-and-after photos, including the inside of the ducts, so you can see what was actually removed. That’s part of the Garrison Code: the site is left clean, the price is written down, and the work is done by the book.
Video Inspection
Camera inspection is how we know what the ducts actually need. For $100 – $200 as part of a cleaning, or $75 – $150 as a standalone, we see inside your system. In Pasadena’s character homes, we often find things a visual exterior check would miss: crushed sections under a foundation beam, open joints in an old addition, or cheesecloth-and-tar sealing from the 1920s that needs a gentler hand. The camera tells us, and the video file gets shared with you before you pay for any repair work.
Trusted Brands We Service in Pasadena
We work on systems and filtration products from Honeywell, Aprilaire, and a dozen other major brands. If your Pasadena home has a MERV 8 filter housing and you’re trying to manage allergies or wildfire smoke, we can upgrade it to a MERV 13 without gutting the return plenum. We stock common filter sizes, access doors, grilles, and mastic on the truck, which shortens the time between diagnosis and a finished job. If a part is unusual, we source it locally and come back within days, not weeks. You don’t wait on a part shipped from a warehouse halfway across the country.
See the difference
Before
After
Before
After
Before
AfterCommon Air Duct Cleaning Problems We See in Pasadena Homes
- Cheesecloth-and-tar duct sealing from the 1920s: In Bungalow Heaven, we regularly find original ducts sealed at the joints with cheesecloth and tar, a historic material no neighboring city sees much of. Aggressive brushing tears through it, but we remove it carefully and seal the joint with modern mastic so airflow improves without damaging the home’s character.
- Disconnected runs in unpermitted additions: Pasadena’s expanded bungalows often have a room added by a previous owner who tied into the old duct system with a bootleg connection. The run pulls apart over time, and the cleaned air never reaches that room. We find these with camera inspection and reconnect them.
- Undersized gravity-heating ducts: Homes built between 1900 and 1940 were designed for gravity heat, where warm air rises naturally without a blower. Those ducts are often too small for a modern forced-air system, and they run through crawlspaces and walls that aren’t accessible without some know-how. Crushed sections silently choke airflow and pull dust from the crawlspace into the living space.
- Santa Ana dust infiltration: Pasadena’s Mediterranean climate and Santa Ana wind events push fine dust and pollen through every gap in an older duct system. Infrequent rain means no natural flushing of the dust that settles in returns and supply runs. Between October and March, we see systems that need cleaning sooner than the industry-standard interval because the wind season loads them up fast.
Pricing for Air Duct Cleaning in Pasadena, CA
You won’t get a per-vent price from us, and you won’t get a low coupon quote that triples once the technician is on the driveway. A whole-system duct cleaning in Pasadena runs $450 – $900 depending on home size, the number of returns, and how much repair the system needs. If we find a disconnected run, sealing work, or a crushed section, we show you the camera footage first, then give you a written add-on price that doesn’t move. Estimates are free. Call (626) 469-5477 for an exact quote, written down before anything starts. Every job carries our 365-Day Done Right Promise: if the work fails within a year, we come back and make it right at no charge.
We Also Serve Cities Near Pasadena
Our crews handle Air Duct Cleaning throughout the San Gabriel Valley and beyond. We serve Altadena, San Gabriel, Alhambra, and Temple City with the same written pricing and 365-Day Done Right Promise. If you’re in one of those neighborhoods and need Air Duct Cleaning in Pasadena done right, give us a call.
Serving Pasadena, CA - Our Local Coverage Area
We’re based in the Pasadena 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 Pasadena
Yes. Craftsman-era ducts, especially those found in Bungalow Heaven, often use fragile cheesecloth-and-tar sealing at the joints, and standard rotary agitation can tear through it. We use lower-pressure agitation and HEPA-filtered negative air to source-remove debris, then seal the joints with modern mastic. If we see cast iron registers or asbestos-wrapped runs, we pause, document what’s there, and give you a written plan before continuing. Call (626) 469-5477 to get a quote for a historic-home system.
Because the cleaning isn’t the problem and the duct leaks are. In Pasadena’s older homes, air gaps in returns and supply runs pull unfiltered air from crawlspaces and attics every time the blower runs. If the system isn’t sealed after cleaning, dust returns within weeks. We include air leak testing and offer duct sealing as part of the job, not as an upsell. A sealed system with a proper filter is the only thing that actually fixes persistent dust.
Santa Ana winds carry fine dust, pollen, and particulate matter that infiltrates older duct systems through gaps and unsealed joints. Between October and March, we see systems that load up years’ worth of debris in a single season. If you notice dust on surfaces around supply registers during wind events, that’s a sign your ducts are leaking. We can inspect and seal them before the worst of the season. Call (626) 469-5477 for a free estimate.
Yes. Cast iron registers are common in Pasadena homes built before 1940, and they’re too heavy and brittle for standard removal methods. We work around them or remove them carefully, without cracking the casting, and we reseal them when the job is done. If a register is stuck or corroded, we’ll tell you and give you a written price to address it. The register is part of the system, and we never force a part that could break.
Gravity heating was standard in Pasadena homes built before 1940: the furnace sat low, and warm air rose naturally through large ducts without a blower. Those ducts are often oversized in diameter but undersized for the airflow a modern forced-air system needs. We service gravity systems by cleaning what’s there, camera-inspecting for crushed or disconnected runs, and advising honestly on whether the system needs sealing, repair, or replacement. We don’t push a replacement before we’ve looked inside. Call (626) 469-5477 for an inspection.
Written by Roy Castellanos, Owner at Hollis Air Duct Pasadena, serving Pasadena and the San Gabriel Valley.