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 Alum Rock
Air duct cleaning in Alum Rock typically runs $380 to $620 for a full system on a standard single-family home, and it’s a job that usually takes three to five hours. That’s the honest range we give homeowners over the phone before we ever send a truck. If you live off Alum Rock Avenue, up toward the foothills, or in one of the older bungalow pockets, you’re dealing with ductwork that has likely been collecting dust, crawlspace air, and God knows what else for decades. Call (737) 727-2314 and we’ll walk you through exactly what your home needs, in plain language, with a written price before anything gets touched.
The older homes here have a particular set of problems, and we’ll get into that below. What matters right now is this: you don’t have to guess what a cleaning costs or whether the work was actually done. Our Air Duct Cleaning team documents everything with before-and-after photos of your own ducts, and the price we quote is the price you pay. No per-vent math, no surprise line items.
Why Cardinal Air Duct Cleaning Is Alum Rock’s Preferred Air Duct Cleaning Company
Cardinal Air Duct Cleaning operates inside the Relay Home Co. family, which was founded in 2005 and has spent two decades building a standard the whole industry should have adopted by now: The Relay Visibility Guarantee. That means every booking comes with a live, trackable arrival window, a written price before any work starts, and photo proof of the job when it’s done. Our Alum Rock customers see their own return and supply ducts on a screen, not a promise on a receipt.
Omar Haddad leads the team, and he’s built the whole operation around something simple: answer the phone, name the price, show the work. Technicians arrive background-checked and in uniform, carrying Rotobrush agitation tools, Nikro HEPA vacuums, and Abatement Technologies containment units. That’s professional-grade negative-pressure extraction, which means the loosened debris goes into the vacuum, not back into your living room.
Alum Rock homeowners deserve a duct cleaner who knows the difference between a 1940s bungalow and a 1980s tract home, because those two houses have completely different duct problems. We know. We see them every week.
Air Duct Repair in Alum Rock
Air Duct Repair in Alum Rock is, honestly, the part of the job that matters more than the cleaning itself. Older homes off Alum Rock Avenue and the surrounding foothill neighborhoods routinely have attic and crawlspace runs that have pulled loose at the collars, collapsed in sections, or were never properly sealed in the first place. If the return side is disconnected under the house, the system is pulling dirt, rodent droppings, and damp crawlspace air directly into your blower. Cleaning the ducts while that leak remains is polishing a cracked windshield. You’ll pay somewhere between $150 and $400 for typical repair work like resealing collars, reconnecting loose flex, or patching small holes, depending on how many runs are involved and how accessible they are.
Reconnecting and Sealing Crawlspace Runs
On a 1950s single-story off Alum Rock Avenue near the foothills, our tech found the return-side flex duct in the crawlspace had pulled loose at the collar entirely. The system was sucking unfiltered air from under the house into the air handler, then pushing it through every register. We ran a camera inspection, reconnected and sealed the run, then cleaned the supply and return ducts under negative pressure with HEPA filtration and agitation tools. The before-and-after photos of that homeowner’s own ducts showed the difference plainly.
Replacing Collapsed Flex in Attics
Attic flex runs in Alum Rock’s older housing stock often sag or kink, especially where the original installers used undersized strapping or none at all. A crushed flex run can cut airflow to a whole section of the house. When we find that, we replace the section, resize it where needed, and seal the connections with mastic, not duct tape. Duct tape is a temporary patch that fails within a couple of years in an unconditioned attic. Mastic is a permanent seal.
Ductwork Cleaning in Alum Rock
Ductwork Cleaning in Alum Rock is not a ten-minute vacuum job, and it shouldn’t be. A proper cleaning means removing the register covers, agitating the walls of the duct with rotary brushes, and pulling everything loose into a HEPA-filtered vacuum under negative pressure. That’s the trade standard. The supply side delivers conditioned air; the return side brings air back to the system. Both need cleaning in most Alum Rock homes, because the return side is where dust, pet hair, and airborne grease get drawn in and deposited along the walls of the run. For a typical single-family home, full ductwork cleaning runs $380 to $620, and includes the trunk lines, branch runs, and registers.
Supply and Return Duct Cleaning
We clean both sides of the system in every job. A return duct with years of dust lining its walls is feeding that dust directly into your blower motor and evaporator coil. A supply duct with the same buildup is re-releasing it into the air you breathe every time the system kicks on. In Alum Rock’s older homes the return side is usually the dirtier of the two, especially where the return grille sits near the floor and pulls in whatever the household tracks across it.
Full System Cleaning With Video Inspection
Every cleaning includes a camera inspection before and after. Homeowners get to see the inside of their own ducts: what was there before, what was removed, and what the surface looks like after. We do not clean blind. The camera also catches problems cleaning alone cannot fix, like disconnected runs, collapsed sections, or active rodent entry, so we can tell you plainly what needs repair and what can wait.
Trusted Brands We Service in Alum Rock
We work on whatever duct system is in your home, but the equipment we bring is not a truck-mounted shop-vac. Our crews run Rotobrush rotary brush systems, Nikro HEPA-rated vacuum extraction, and Abatement Technologies containment units. We also install Aprilaire and Guardsman filtration products when a homeowner wants to upgrade what the system captures after we leave. That matters in Alum Rock, where allergy season runs long and the older homes have more gaps in the building envelope. We keep common parts stocked locally, so a repair is usually done the same visit, not scheduled a week later.
Common Air Duct Cleaning Problems We See in Alum Rock Homes
- Disconnected return flex in crawlspaces. The pre-war bungalows and 1950s ranchers off Alum Rock Avenue often have crawlspace duct runs that have pulled loose at the collar, so the system pulls unconditioned air from under the house straight into the air handler. Cleaning without reconnecting is wasted money.
- Collapsed or sagging attic flex. Foothill-edge tract homes with shallow attic pitch have a nasty habit of crushing flex ducts under storage boxes or poor strapping. The fix is replacement and proper support, not more cleaning.
- Fine dust loading on the blower and coil. In the newer tract homes the ducts themselves are tighter, but the systems are smaller and cycle harder. The real contaminant there is fine dust that loads the blower motor and evaporator coil, not debris blowing out of registers.
- Pet hair and dander caked in return grilles. Alum Rock households with dogs or cats see the return side collect fur quickly, especially when the grille sits low on a wall. A return side that hasn’t been opened in five years will look like it’s wearing a sweater.
Pricing for Air Duct Cleaning in Alum Rock, CA
We price by the system, not the vent. A full system cleaning for a standard single-family Alum Rock home runs $380 to $620, and that’s the price, in writing, before we touch a tool. If your home needs repair work like reconnecting a dislodged flex run, resealing collars, or replacing a collapsed section, that is quoted separately and agreed to before any of it happens. Homes with larger duct counts, multiple returns, or particularly inaccessible attics and crawlspaces fall toward the upper end. Commercial jobs are quoted after a walkthrough. Call (737) 727-2314 and we’ll give you an honest figure for your specific home over the phone. Estimates are free, and there is no obligation.
What we will not do is quote you a low teaser price per vent and then triple it once the tech is on your driveway. That bait-and-switch is exactly why this industry has the reputation it has. One flat price per system, agreed before work starts. That’s the whole model.
We Also Serve Cities Near Alum Rock
Cardinal Air Duct Cleaning covers Alum Rock and the surrounding Bay Area, including San Jose, San Francisco, Los Angeles, and San Diego. Dispatch and scheduling are coordinated from our San Francisco Bay Area office, and crews serve Alum Rock locally. If you’re nearby and need an honest duct cleaning with a written price, call (737) 727-2314.
Serving Alum Rock, CA - Our Local Coverage Area
We’re based in the Alum Rock 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 Alum Rock
We charge one flat price per system, not per vent. A full system cleaning for a typical Alum Rock home runs $380 to $620, and the price is written down and agreed to before any work starts. Per-vent pricing is how less honest companies lure you in with a small number and then inflate the invoice once they’re inside. We think it’s a dishonest way to sell a trade. Call (737) 727-2314 for an exact quote on your home.
Every three to five years for most homes, not annually. The honest answer is that the average Alum Rock house does not need an annual duct cleaning, and any company telling you otherwise is selling a subscription, not a service. Clean sooner if you’ve had a remodel that generated drywall dust, a rodent intrusion, a water event in the attic or crawlspace, or if someone in the home has serious allergies. If you’re not sure, call (737) 727-2314 and we’ll help you figure out whether a cleaning is actually warranted right now.
Yes, and those are the homes where the repair work often matters more than the cleaning itself. Older crawlspace and attic runs in Alum Rock’s pre-war and mid-century housing stock are frequently unsealed, disconnected, or collapsed. We inspect with a camera first, reconnect and seal what’s broken, then clean under negative pressure with HEPA filtration. If we find a big problem, you’ll see it with your own eyes before we ask for another dollar. Call (737) 727-2314 to talk through your home’s setup.
Every single job includes before-and-after photos of your own ducts, not stock images from another house. You’ll see what the return side looked like before we started, and what it looks like when we’re done. The Relay Standard means you get photo proof of the work as part of the booking. If a duct cleaning company won’t show you the inside of your own ducts, you should ask why.
It will reduce the amount of dust your system recirculates, but it won’t eliminate dust entirely. Dust on furniture comes from many sources: open windows, pets, clothing fibers, and air infiltration through gaps in the building envelope. What duct cleaning does is remove the accumulated buildup inside the duct system so it stops re-entering your air every time the blower runs. If your ducts haven’t been cleaned in a decade and your registers are puffing visible dust on startup, the difference will be immediate. Call (737) 727-2314 and we’ll give you a straight answer about your home.
If your ducts haven’t been looked at in years, or you’re seeing dust blow from the registers when the system kicks on, call (737) 727-2314. We’ll give you a written price, trackable arrival, and photo proof of exactly what was in your ducts and what we did about it.
Written by Omar Haddad, Owner at Cardinal Air Duct Cleaning, serving Alum Rock and the greater Bay Area.




Before
After
Before
After
Before
After