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 Walnut, CA
Air duct cleaning in Walnut, CA typically runs $295 – $490 for a standard single-system home, depending on the number of vents, how long the system has run without service, and whether you have pets. Walnut’s hillside homes, older ranch layouts, and Santa Ana wind season all play into how fast dust and debris accumulate in ductwork. We’re Cardinal Air Duct Cleaning, part of the Relay Home Co. family founded in 2005, and we operate on one standard: a written price before any work starts, a live trackable arrival time, and before-and-after photos of your own ducts. Call (737) 727-2314 for a free estimate.
Why Walnut Homes Are Different
Walnut sits in the eastern San Gabriel Valley, and the terrain does something most flat-city duct cleaners never account for. Homes along Lemon Avenue and up toward Snow Creek are built on slopes, which means many HVAC systems run longer and harder to maintain even temperatures across split levels. That longer runtime pulls more air through the filter, and once the filter loads up, the ductwork starts collecting dust at a faster rate than a single-story track home in the valley floor.
Then there’s the Santa Ana season. From late September through November, dry offshore winds push fine dust and grit through window screens, door seals, and attic vents. A lot of that ends up in return-air ducting. Walnut’s mix of 1970s and 1980s custom builds along Pierre Road and newer developments near Creekside Park also means we see everything from rigid metal ducts that have never been opened to flex duct in tight attic spaces. The older systems, especially in the Sunscape and Snow Creek neighborhoods, often have leaks at the plenum connections that pull attic insulation into the airflow. That’s something we check on every Walnut job because the hillside attics hold heat and the insulation breaks down faster up there.
Our Main Walnut Services
Walnut homeowners call us most often for two things: dryer vent cleaning before fire season and whole-house air duct cleaning when dust won’t settle. Here’s the full picture on all three services we offer in Walnut.
Dryer Vent Cleaning in Walnut
Walnut’s hillside homes often have dryer vents running up through the roof or across long horizontal spans inside walls. That’s a longer run than the typical ground-floor laundry room, and every extra foot of venting is a place lint can stall. Add in the dry Santa Ana months and that lint cures into a fuel source that’s one failed clog away from a serious fire. We run a Rotobrush rotary system through the entire vent run from the dryer to the exterior cap, then a Nikro HEPA vacuum pulls the loosened debris out instead of blowing it back into your laundry room. Before we leave, we test the airflow at the exterior vent so you get a before-and-after read on pressure. Dryer Vent Cleaning in Walnut
Air Duct Cleaning in Walnut
Whole-house air duct cleaning in Walnut means opening every supply and return register, sealing the system, and using negative-pressure extraction. That’s the trade term for pulling air through the ducts with a HEPA vacuum while rotary brushes knock debris loose, so the dust moves out of your vents and into the vacuum, not back into your living room. Walnut’s older hillside HVAC systems often haven’t been opened in a decade or more, and the amount of dust, pet dander, and construction debris we pull out of a home on Country Hollow Drive is usually a surprise to the owner. Air Duct Cleaning in Walnut
HVAC Cleaning in Walnut
An HVAC cleaning in Walnut goes deeper than the ducts. We clean the blower motor, the evaporator coil, the drain pan, and the plenum box where the ductwork meets the furnace or air handler. In Walnut’s hillside homes, the plenum is often the dirtiest part of the whole system because attic heat bakes dust onto the interior surfaces all summer. A clogged evaporator coil is also one of the top reasons Walnut AC systems freeze up mid-summer. We use Abatement Technologies containment units to keep attic dust from falling into your living space while the system is opened. HVAC Cleaning in Walnut
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 Walnut
We service and clean systems built around every major HVAC brand found in Walnut homes, including Honeywell filtration units and Aprilaire whole-house purifiers. Our crews stock common filters and access parts in the van, so if a filter or seal needs replacing mid-job, there’s no second trip. Still, we carry for most common set-ups, and we’ll tell you brand specifics before any replacement is made. For more, see our brands.
Pricing for Air Duct Cleaning Company in Walnut, CA
Most standard air duct cleanings in Walnut run $295 – $490 for a typical single-system home. Here’s the breakdown by the specific jobs we do:
| Service | Typical range in Walnut |
|---|---|
| Whole-house air duct cleaning (single furnace/AC system) | $295 – $490 |
| Whole-house air duct cleaning (dual system / two furnaces) | $450 – $780 |
| Dryer vent cleaning (standard run, up to 12 feet) | $89 – $149 |
| Dryer vent cleaning (extended or roof-vent run) | $129 – $199 |
| HVAC cleaning (coils, blower, plenum) | $350 – $600 |
| Filter replacement (basic media or HEPA) | $20 – $85 |
| Anti-microbial fogging treatment | $150 – $250 |
| Duct sealing (per linear foot, access permitting) | $4 – $8 |
Walnut’s two main price drivers are access and age. Attic plenums in hillside homes on Snow Creek can be tight, and that adds time. Older systems with significant buildup or deteriorated flex duct also require extra care, and we’ll tell you the exact figure before we touch a single vent, not after. That’s the whole point of a written price before any work starts.
Neighborhoods We Serve in Walnut
We cover all of Walnut, from the hillside communities up Snow Creek Canyon to the flat lots east of Lemon Avenue and the neighborhoods around Creekside Park. Response time to most Walnut homes is same-day or next-day, depending on the schedule and where our crew is finishing the prior job.
- Snow Creek
- Sunscape
- Country Hollow
- Creekside Park area
- Lemon Avenue corridor
Service Area – Cities Near Walnut
We also serve the surrounding San Gabriel Valley communities east and west of Walnut. If you’re in Rowland Heights, CA, Diamond Bar, CA, La Puente, CA, or West Covina, CA, the same written-price standard and before-and-after photo proof apply to every job. Dispatch and scheduling are coordinated from the brand’s Los Angeles office; crews serve Walnut locally.
Serving Walnut, CA - Our Local Coverage Area
We’re based in the Walnut 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 Walnut
Most Walnut appointments are scheduled within 24 to 48 hours, and the arrival window you receive is live and trackable on your phone. You’ll know the technician’s name before they arrive, along with a written price before any work starts. Call (737) 727-2314 for current availability.
No. Air duct and dryer vent cleaning are interior home maintenance services that don’t require a permit or HOA sign-off anywhere in Walnut. If your home sits in a gated community, we just need entry instructions when you book.
Every Cardinal Air Duct Cleaning job includes before-and-after photo documentation of your own ductwork, not a stock image. Your 365-Day Done Right Promise covers every booking: if the work isn’t right within a full year, we return and correct it at no charge.
Ready to get your Walnut ducts cleaned? Call (737) 727-2314 for a free estimate and a written price before any work begins.
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 Walnut 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.