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 Altadena
Air duct cleaning in Altadena typically costs $450 – $850 for a standard single-system home, and you’ll get a written flat price before any work begins. We also offer Dryer Vent Cleaning in Altadena. If you’re noticing dust puffs from registers, uneven heating between rooms, or a musty smell when the blower starts, your ducts are telling you something. Call (737) 727-2314 for a free estimate from a team that knows Altadena’s older housing stock cold.
We work throughout Altadena weekly, from the craftsman bungalows near Lake Avenue up to the mid-century ranches off Fair Oaks and the homes tucked into the foothills below the Angeles National Forest. Our crews know the difference between a 1920s gravity furnace system and a 1960s forced-air retrofit, because both exist side by side here. That local knowledge changes how we approach every job.
Why Cardinal Air Duct Cleaning Is Altadena’s Preferred Air Duct Cleaning Company
Altadena homeowners keep calling us because we do something most duct cleaners won’t: we hand you a written flat price per system before a single register is touched. No per-vent math, no surprise line items, no “while we’re here” upcharges. The price you see is the price you pay, and it’s backed by the 365-Day Done Right Promise. If the work isn’t done right within a full year, we come back and correct it at no charge.
Our crews arrive in uniform, background-checked, and carrying professional-grade equipment: Rotobrush rotary brush systems for agitation, Nikro HEPA vacuums for negative-pressure extraction, and Abatement Technologies containment units when a crawlspace or attic needs isolation. You know the technician’s name before they knock. That’s the Air Duct Cleaning standard Omar Haddad holds every crew to across Altadena.
Omar started with a simple rule: treat every Altadena home like it belongs to someone who deserves clear answers. That means a live person answers when you call, a trackable arrival window comes with your booking, and before-and-after photos of your own ducts are part of every job, not an upsell. It’s how The Relay Standard works, and it’s why our strongest reviews come from neighborhoods like the Christmas Tree Lane district and the streets around Charles White Park.
Commercial Air Duct Cleaning in Altadena
Commercial Air Duct Cleaning in Altadena means something different than residential work, and the pricing reflects that. Most commercial jobs run $900 – $2,200 depending on square footage, number of rooftop units, and whether kitchen exhaust or bathroom vent runs are included. We work with local offices, retail spaces, restaurants along Lake Avenue, and small warehouses in the industrial pockets off Woodbury Road.
Our team uses negative-pressure extraction, meaning the loosened debris goes straight into the vacuum, not back into your workspace. For larger commercial systems, we often pair a Rotobrush agitation pass with Nikro HEPA capture units tied into the main trunk, plus a camera inspection before and after so you see exactly what was removed. Written price first, every time.
Industrial and Warehouse Ducts
Bigger buildings mean longer runs and more dust loading. We schedule commercial jobs around your operating hours, including evenings and weekends when it means less disruption for your tenants or staff.
Retail and Office HVAC
Retail spaces in Altadena’s older storefronts often share return plenums with neighboring units, so containment matters. We seal off supplies and run HEPA-filtered negative pressure to protect your inventory and your people during the job.
Air Duct Cleaning Services in Altadena
Air Duct Cleaning Services in Altadena cover the full system: supply ducts, return ducts, the air handler, blower motor, and the plenum boxes at each end. A standard single-family home in Altadena runs $450 – $850 for the full cleaning, while larger homes or those with two systems can hit $900 – $1,300. You get one flat price per system, in writing, before we start.
We don’t do “register vacuuming” and call it cleaning. Our process is source removal: agitate the debris in the duct walls, pull it out under negative pressure with HEPA filtration, and document everything with before-and-after photos of your actual ducts. It takes about 2 – 4 hours for most Altadena homes, depending on the number of returns and whether the crawlspace needs containment.
Residential Duct Cleaning
Homes with pets, recent renovations, or decades of accumulated dust see the biggest difference. We also inspect for rodent intrusion, a real issue in Altadena’s older pier-and-beam construction where return ducts run through crawlspaces.

Video Inspection Services
Not sure your ducts are even dirty? We run a small camera through the main trunk and return drops so you see exactly what’s inside before deciding. It’s included with every full-system quote.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Altadena
Altadena homes carry a mix of aging gravity furnaces, mid-century forced-air units, and modern heat pump systems. We work on them all, and we’re familiar with the filtration products that suit this area’s dry, dusty climate. For homes adding or upgrading filtration, we install Aprilaire media cabinets and Guardsman filters, both well-suited to the fine particulate load that comes off the San Gabriels during Santa Ana events. Abatement Technologies containment units get used on a lot of our crawlspace work here, where dust and rodent debris need to stay out of the living space while we clean.
Common Air Duct Cleaning Problems We See in Altadena Homes
- Rodent debris in return ducts under pier-and-beam floors. The raised foundations common in Altadena’s pre-1940 bungalows create easy access for rodents under the house. When return ducts run through that crawlspace, droppings, nesting material, and chewed insulation end up in your air stream. We pull it out with negative pressure and seal entry points where we find them.
- Thirty years of dust and lint caked onto gravity furnace trunks. Many Altadena homes still run the original gravity furnace, which moves air slowly and lets dust settle thick inside the ducts. We see half-inch coatings of matted debris that no register vacuum will ever touch. Source removal with agitation tools is the only way to get it out.
- Visible dust puffs when the air handler kicks on. This is the classic sign in older Altadena homes that the blower is blowing across years of settled debris. It means the ducts are loaded, and the dust is now floating through the house every cycle.
- Post-renovation construction dust throughout the system. Altadena has seen steady renovation activity, and drywall dust, sawdust, and insulation fibers get pulled into the returns during any remodel. That fine powder passes through filters and coats the blower motor. A full-system cleaning after a remodel is not optional, it’s basic maintenance.
Pricing for Air Duct Cleaning in Altadena, CA
Most standard air duct cleanings for a single-system Altadena home run $450 – $850. Homes with two HVAC systems, longer duct runs, or heavy rodent contamination can land between $900 and $1,300. Commercial jobs in Altadena start around $900 and scale with building size and system count.
What affects the cost? Number of systems, linear feet of ductwork, accessibility of the crawlspace or attic, and how heavily the ducts are loaded. None of it is a surprise. We give you one flat price per system in writing before work starts, and that number does not change at the door. Call (737) 727-2314 for a free estimate built around your actual home, not a per-vent multiplier.
We Also Serve Cities Near Altadena
Our crews cover Air Duct Cleaning in Altadena and the surrounding foothill communities daily. We regularly schedule work in Pasadena, San Marino, Sierra Madre, and South Pasadena, so if you live just over the line, the same flat-price process and before-and-after photo standard applies to you too.
Serving Altadena, CA - Our Local Coverage Area
We’re based in the Altadena 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 Altadena
Every 4 to 7 years for most Altadena homes, honestly. Homes with pets that shed heavily, recent renovations, or known rodent activity in the crawlspace should lean toward 3 to 4 years. The dry, dusty air that blows down from the San Gabriels accelerates dust loading here compared to coastal areas, so your ducts collect more, faster. Call (737) 727-2314 and we’ll run a camera inspection so you know if it’s actually time.
Because per-vent pricing is how homeowners get taken advantage of. A large Altadena bungalow with 18 registers turns a “$49 per vent” quote into $882 plus fees, and you don’t see that until the tech is already in the house. We give you one flat price per system, in writing, before we start. The price is the price.
No, we don’t promise same-day service, and we’d rather be straight with you about that than rush a job. Duct cleaning on Altadena’s older homes often means crawlspace access, containment setup, and a proper HEPA extraction pass, none of which should be compressed into a rushed slot. We schedule with a trackable arrival window and show up when we say we will. Call (737) 727-2314 to get a real appointment time.
After we finish each system, you get a set of photos showing the inside of your ducts before we started and after we finished, taken from the same camera angles. You’ll see the difference in real time, from dark grey coatings to bare galvanized metal. It’s your proof the work was actually done, and it’s included in every job.
Yes, and it’s some of the most important work we do in Altadena. Gravity furnace systems move air slowly, so debris sits and accumulates for decades. We access the trunk line through the crawlspace, set up negative pressure, and use agitation tools to pull the debris out without stirring dust into your living space. Call (737) 727-2314 for a flat price on your specific system.
Ready to breathe easier? Call (737) 727-2314 for a free estimate on air duct cleaning in Altadena. A live person answers, the price is written before we start, and you’ll see your own before-and-after photos when the job is done.
Written by Omar Haddad, Owner at Cardinal Air Duct Cleaning, serving Altadena and the surrounding foothill communities.




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