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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Before
AfterAir Duct Cleaning Company in Palo Alto, CA
Most standard air duct cleanings in Palo Alto run $450 – $750 for a typical single-family home, and the work usually takes three to five hours. We’re Cardinal Air Duct Cleaning, part of the Relay Home Co. family founded in 2005, and every job comes with a written price before we touch a vent, plus before-and-after photos so you can see exactly what got removed. Palo Alto’s mix of 1950s ranch homes and newer two-story builds means duct systems vary wildly from house to house, and our crews are set up for both. Call (737) 727-2314 for a straight quote.
Why Palo Alto Homes Are Different
Palo Alto’s housing stock splits into two very different worlds when it comes to duct work. The postwar ranches in Midtown and south Palo Alto were built with metal ducts that have held up remarkably well but often lack proper return-air balance because they were designed for smaller furnaces than what they run today. Homes in Barron Park and College Terrace have the opposite issue: decades of remodels and additions mean ducts get extended, spliced, or rerouted in ways that create dead zones and low airflow in the newer sections.
The clay-heavy soil across the Palo Alto basin also plays a role. Homes here settle and shift through wet winters and dry summers, which can open small gaps at duct joints and plenum connections. When that happens, the system pulls unfiltered crawlspace or attic air into the return side. In a city where summer days regularly push into the mid-80s and the Santa Cruz Mountains trap heat on the west side, that means your AC works harder than it should. We see this constantly on El Camino-adjacent properties and throughout the flatlands east of Alma Street.
Our Main Palo Alto Services
The two calls we get most in Palo Alto are for full air duct cleaning and HVAC cleaning, followed closely by dryer vent work as wildfire season approaches. Here’s how each one breaks down.
Dryer Vent Cleaning in Palo Alto
Palo Alto’s building codes require proper dryer vent termination, but many older homes on streets like Waverley or Addison still vent into cramped crawlspaces or terminate under decks where lint builds up fast. We run Rotobrush brush systems with HEPA extraction to pull packed lint out of the full run, and we check termination points for rodent screens that trap debris. Lint-clogged vent lines are the leading cause of dryer fires, and in Palo Alto’s older housing stock, we regularly find vents that haven’t been opened in a decade. See the full breakdown on our Dryer Vent Cleaning in Palo Alto page.
Air Duct Cleaning in Palo Alto
Whole-home duct cleaning here means source-removal cleaning: we use a Nikro HEPA vacuum in negative-pressure mode, which pulls loosened debris straight into the collection unit instead of circulating it back into your living spaces while we agitate each branch line. In Palo Alto homes with central returns in hallways, return-side buildup is usually the worst part of the system. We also inspect the filter situation, because many retrofit HVAC installations in town use undersized filter racks. Full pricing and photos are on our Air Duct Cleaning in Palo Alto page.
HVAC Cleaning in Palo Alto
HVAC cleaning covers the air handler, evaporator coil, blower motor, and the supply and return plenums. In Palo Alto’s mild spring and fall, systems sit idle for weeks and collect a layer of dust that bakes on the first hot day. We use Abatement Technologies containment units when we open the air handler so whatever we dislodge doesn’t land in your hallway closet or garage. If your system has Aprilaire or Honeywell filtration, we clean the housing and check the media condition. The HVAC Cleaning in Palo Alto page has the full scope and price list.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Palo Alto
We service and clean duct and filtration systems from Nikro, Honeywell, Aprilaire, and Abatement Technologies. Most replacement parts and filter media for these brands ship to Palo Alto within one to two business days. See our brands for the full equipment list and what we stock on our trucks.
Pricing for Air Duct Cleaning Company in Palo Alto, CA
Every price below is a whole-system range for Palo Alto homes. We hand you a written price before any work starts, and that number doesn’t change at the door.
| Service | Typical range in Palo Alto |
|---|---|
| Air duct cleaning (standard single-family, up to 10 vents) | $450 – $750 |
| Air duct cleaning (larger home, 11 – 20 vents) | $750 – $1,100 |
| Air duct cleaning (condo, 5 – 8 vents) | $300 – $450 |
| Dryer vent cleaning | $110 – $180 |
| HVAC cleaning (air handler + coil) | $250 – $450 |
| HEPA media filter replacement | $90 – $180 |
| Return filter box cleaning + access panel | $150 – $300 |
| Duct sanitizing treatment (add-on) | $100 – $250 |
Two things push pricing up in Palo Alto faster than anything else: crawlspace access and duct age. Homes in the Midtown and Old Palo Alto neighborhoods often have supply ducts running through tight perimeter crawlspaces with access hatches that require extra containment and a second technician. The good news: our written price already accounts for all of that before you approve the job.
Neighborhoods We Serve in Palo Alto
We work across the entire Palo Alto city footprint, from University Park and Downtown north to Midtown, south through Barron Park, and west into the hills off Page Mill Road. Here are the neighborhoods we’re in every week:
- Midtown – Colorado Avenue to Oregon Expressway, postwar ranches with aging metal trunk lines
- Old Palo Alto – tree-lined streets around Waverley and Bryant, period homes with remodeled systems
- Barron Park – El Camino to the foothills, larger lots with extended duct runs
- College Terrace – Stanford-adjacent cottages and duplexes with shortened vent systems
- Duveneck / St. Francis – north Palo Alto, 1960s builds with mid-century floorplans
We typically run two to three crews across Palo Alto on any given day, so most neighborhoods see us within the same week you call. The Relay Standard booking gives you a live trackable arrival window, so you’re not waiting for a four-hour gap.
Service Area – Cities Near Palo Alto
Our Palo Alto crews also cover the bordering communities, including Stanford, CA, right across the campus edge, Menlo Park, CA to the north, Atherton, CA next door, and Los Altos, CA up in the hills to the south. Scheduling is coordinated from our San Francisco Bay Area office, with crews dispatched locally to Palo Alto every working day.
Serving Palo Alto, CA - Our Local Coverage Area
We’re based in the Palo Alto 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 Company in Palo Alto
No. Air duct cleaning, dryer vent cleaning, and HVAC cleaning are maintenance services that do not require city permits in Palo Alto. The one exception is if your job requires modifying duct runs or adding new returns, which falls under HVAC contracting and would need the appropriate city approval. We’ll let you know before any work starts if your project steps into that territory.
Most Palo Alto neighborhoods can be scheduled within one to five business days. Our live person answers the phone around the clock and can see live crew capacity when you call, so you get a real answer, not a callback. The Relay Standard includes a trackable arrival window you can follow from your phone. Call (737) 727-2314 and we’ll give you the first available slot while you’re on the line.
Yes, we serve the full Palo Alto city limits including the hillside streets off Page Mill Road and along the Los Trancos corridor. Some of those properties have long private drives and extra equipment-access steps, but the written price we give you covers all of it before we schedule the work. No surprise charges when we show up for access issues.
Ready to get your ducts cleaned in Palo Alto? Call (737) 727-2314 for a free estimate and a written price before we start. Omar Haddad and the Cardinal Air Duct Cleaning team answer the phone live, and you’ll know your exact arrival window before we roll a truck.
What happens when you call
- 1A real person answersNo phone trees - talk to a local air duct cleaning pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Palo Alto Customers Say
"Booked a slot in the app, got a reminder text, and watched the crew's van on the map as it came. Cleaned all the vents and the main trunk. Easy from start to finish."
- Rob J."Cleaning plus HVAC coil clean. Tech texted when he was ten minutes away. No surprises on the price."
- Evan S."Dryer vent fix fixed the burning smell. The clog was behind the elbow and the whole laundry room smells normal now."
- Dennis K.