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 Sunnyvale, CA
Air duct cleaning in Sunnyvale typically runs $285 to $590 for a standard single-system home, with most jobs completed in a morning or afternoon. We’re Cardinal Air Duct Cleaning, part of the Relay Home Co. family, and we built our whole approach around one frustration: duct cleaners who quote low, show up late, and hand you a surprise invoice. In Sunnyvale, where the housing stock spans 1950s ranchers and recent Eichler-inspired builds, the job varies house to house, and we price it that way. Call us at (737) 727-2314 and we’ll walk you through what your system likely needs.
Why Sunnyvale Homes Are Different
Sunnyvale’s mix of housing ages means no two duct systems behave the same. The postwar tract homes north of El Camino Real were built when builders treated ductwork as an afterthought, often sealing joints with tape that has since dried and split. Rooms in those homes routinely develop hot and cold spots not because the HVAC unit is failing but because the ducts have been leaking conditioned air into the attic for decades. The newer construction south of Highway 237 was built tighter, but that changes the job too: when a house is properly sealed, whatever enters the ductwork stays in circulation, so construction dust from a single remodel can take years to clear. We treat every Sunnyvale job as a visual inspection first, because the age of the house tells us more than the square footage does about what we’ll find.
Sunnyvale’s dry summers and damp winter mornings also shape the work. The region’s signature eucalyptus and oak pollen gets drawn into return vents during the spring bloom, while the seasonal temperature swings cause the metal ductwork in older homes to expand and contract, loosening joints and letting insulation particles migrate into the airstream. If your windows face a street with mature trees, your ducts carry the evidence.
Our Main Sunnyvale Services
Most Sunnyvale homeowners call us for one of two reasons: a dryer that takes two cycles to finish a load, or indoor air that smells stale every time the furnace kicks on. The three services below each have their own dedicated Sunnyvale page with full pricing and detail.
Dryer Vent Cleaning in Sunnyvale
Sunnyvale’s older homes often route dryer vents through crawl spaces or along rooflines with tight bends, and every 90-degree turn is a place lint accumulates. A clogged vent doesn’t just slow your dryer, it holds heat against the duct wall and creates a fire hazard. We run a Rotobrush through the full vent run and confirm airflow at the exterior termination, not just at the dryer connection. Most jobs take under an hour. See Dryer Vent Cleaning in Sunnyvale for pricing and details.
Air Duct Cleaning in Sunnyvale
When we clean ducts in Sunnyvale, we’re typically finding a layer of fine dust, pet dander, and pollen that has settled into the return lines and supply branches over several years. The job involves brushing the interior walls of the ductwork loose and pulling everything out with negative-pressure extraction, meaning the debris goes into our Nikro HEPA vacuum, not back into your living room. In homes with a single return, the difference in airflow afterward is usually noticeable within a day. Read Air Duct Cleaning in Sunnyvale for the full breakdown.
HVAC Cleaning in Sunnyvale
Sunnyvale’s gas furnaces and air handlers collect dust on the blower wheel and evaporator coil even when the ducts themselves are in decent shape. Once that layer builds past a certain thickness, the system runs hotter, cycles longer, and pushes less air. We open the air handler, clean the blower assembly and coil with professional brushes, and run the system to confirm proper airflow before we pack up. The work usually takes two to three hours depending on access and unit location. Details at HVAC Cleaning in Sunnyvale.
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 Sunnyvale
The furnaces, air handlers, and filtration setups we see in Sunnyvale cover a lot of ground: Honeywell media cabinets, Aprilaire humidifiers and filters, Guardsman UV systems, and standard manufacturer units from Carrier, Lennox, Trane, and Goodman. We work on all of them, and our techs carry common filter sizes and replacement parts on the truck. Browse our brands to see the full list of equipment we service and the filtration products we install.
Pricing for Air Duct Cleaning Company in Sunnyvale, CA
| Service | Typical range in Sunnyvale |
|---|---|
| Air duct cleaning, single HVAC system (home up to 2,000 sq ft) | $285 – $430 |
| Air duct cleaning, larger or multi-zone home | $430 – $590 |
| Additional return or supply drop | $35 – $55 each |
| Whole-home media filter replacement | $55 – $95 |
| HVAC cleaning (blower wheel, coil, housing) | $220 – $380 |
| Dryer vent cleaning, standard single-story run | $110 – $180 |
| Dryer vent cleaning, roof or long-run termination | $160 – $240 |
What pushes a Sunnyvale job toward the higher end: homes with two HVAC systems, ducts that have not been cleaned in over a decade, or access points that require extended ladder work because the mechanical room opens onto the garage ceiling. Whatever the quote ends up being, it is handed to you in writing before a single vent is touched, and it does not change at the door.
Neighborhoods We Serve in Sunnyvale
We work all over Sunnyvale, from the mid-century tracts off Bernardo Avenue to the newer developments near Sunnyvale West. Our crews are local to the area, so scheduling is usually measured in days rather than weeks, and most neighborhoods see us arrive within a 30-minute window you can track live on your phone.
- Lakewood Village
- Sunnyvale West
- Cherry Chase
- Birdland
- Ponderosa Park
Service Area – Cities Near Sunnyvale
Cardinal Air Duct Cleaning covers the South Bay and Peninsula, with dedicated pages for our neighbors in Mountain View, CA, Santa Clara, CA, Cupertino, CA, and Los Altos, CA. Dispatch and scheduling are coordinated from our San Francisco Bay Area office, and the crews serving Sunnyvale live and work here on the Peninsula.
Serving Sunnyvale, CA - Our Local Coverage Area
We’re based in the Sunnyvale 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 Sunnyvale
Most Sunnyvale appointments are scheduled within a few business days. We run dedicated Peninsula crews, so you’re not waiting on a truck from another county. The Relay Standard gives you a live trackable arrival window the moment your booking is confirmed, and a live person answers our phone around the clock if you need to adjust the time.
For detached single-family homes, no. The work is entirely inside your HVAC system and vents, so no exterior modification triggers an HOA review. For townhomes or condos with shared walls, the HOA’s concern is usually limited to exterior vent terminations, which we leave exactly as they are. Call (737) 727-2314 and we can tell you what applies to your specific property type.
Yes, the entire city including all ZIP codes within Sunnyvale. Whether you’re off Fremont Avenue or near the Los Altos border on the west side, you’re inside our normal service area with no extended-distance fee.
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 Sunnyvale 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.