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 HVAC Cleaning Across Sonoma
HVAC cleaning in Sonoma costs between $390 and $690 for a typical single-system home, and most jobs are completed in half a day. We quote one flat price per system before work starts, so you’ll never see the number change once our technician pulls up. If you’re noticing dust around your registers, longer cooling cycles on summer afternoons, or a musty smell when the heat kicks on, call (737) 727-2314 and we’ll walk you through exactly what’s involved.
We’re Cardinal Air Duct Cleaning, part of the Relay Home Co. family and the dedicated HVAC Cleaning team serving Sonoma. Omar Haddad leads our crews here, and every job is booked through The Relay Standard, meaning you get a live trackable arrival time, before-and-after photo documentation, and a digital invoice you can pay from your phone. No four-hour windows. No guessing.
Why Cardinal Air Duct Cleaning Is Sonoma’s Preferred HVAC Cleaning Company
Sonoma homeowners call us because they want to see the work, not just hear about it. Every booking includes before-and-after photos of your actual ducts, a written price handed to you before any equipment comes off the truck, and the 365-Day Done Right Promise: if the work isn’t right within a full year, we return and correct it at no charge. No exceptions, no fine print.
The homes here are different from what most duct cleaning companies are used to. We work in 1950s ranches on the Springs side, Victorian and bungalow stock near the Plaza, and modern builds up in the hills. That range matters because duct geometry, insulation type, and decades of accumulated debris all change what a proper cleaning requires. Our technicians are background-checked, uniformed, and you know their name before they open the door. The equipment is professional-grade: Rotobrush rotary brush systems for agitation, Nikro HEPA vacuums for negative-pressure extraction, and Abatement Technologies containment units so the loosened debris never re-enters your living space.
When you schedule through Cardinal, a live person answers the phone around the clock. That’s Omar Haddad’s standard for every job in Sonoma.
Furnace Duct Cleaning in Sonoma
Furnace Duct Cleaning is the service Sonoma homeowners need most during the winter months, when the heat is cycling daily and pushing whatever has collected in your trunk lines through the registers and into the air you breathe. In Sonoma specifically, that debris is rarely just household dust. We pull out historic plaster dust from original lath-and-plaster walls, red clay soil tracked in from vineyard roads, and insulation fibers from older attic installs. A full furnace duct cleaning for a standard single-system Sonoma home runs $390 to $690.
What the job includes
We open the supply and return plenums, agitate the interior walls of the ductwork with a Rotobrush system, and run continuous negative-pressure extraction, meaning the loosened debris goes straight into the HEPA vacuum instead of back into your rooms. Every supply and return register is cleaned, and we do a camera inspection before and after so you can see the difference.
When Sonoma homeowners actually need it
If you just renovated an older home on the east side, that’s a textbook trigger. Plaster dust from a remodel settles deep into duct runs and recirculates for months. Homes near vineyard roads off Arnold Drive or Lovall Valley Road also pick up more fine clay particulate than suburban properties. If you can’t remember the last time the system was cleaned and you’re in a pre-1970s home, it’s time.
AC Coil Cleaning in Sonoma
AC Coil Cleaning is what keeps your cooling system from working double-time during Sonoma’s hot, dry summer stretches. When the evaporator coil is caked with dust and the condenser coil outside is clogged with cottonwood fuzz and vineyard dust, your system runs longer, pulls more power, and cools less. For an AC coil cleaning in Sonoma, expect to pay $250 to $450 depending on access and how much build-up has accumulated on the evaporator.
Evaporator and condenser coils
The evaporator coil sits inside your air handler and does the actual cooling. In Sonoma homes with original galvanized ducts and less-than-ideal filtration, this coil attracts every particle that slips past the filter. We clean it with coil-safe cleaners and fin combs. The condenser coil outdoors faces a different problem here: dry, dusty summers and pollen season combine to coat the fins and choke airflow. We clean both as a pair because cleaning one without the other only solves half the problem.
When you’ll notice it
You’ll feel it as weak airflow from your registers on 90-plus degree days, or see your July utility bill climb while the house stays warm. If your system is blowing but not really cooling, and the outdoor unit looks like it’s wearing a gray sweater, the coils are the first thing we check.
Trusted Brands We Service in Sonoma
We service and clean systems from every major brand you’ll find in Sonoma homes: Carrier, Trane, Lennox, Rheem, Goodman, and older units from Bryant and York. We stock common air filters and KeepRite-compatible components for Sonoma customers, which means less waiting when your system needs a quick refresh during cleaning. We also install quality filtration products from Honeywell, Aprilaire, and Guardsman. If you want better air quality after your cleaning, we’ll recommend a filter upgrade that fits your system and your actual usage patterns, not just the most expensive option in the catalog.
Common HVAC Cleaning Problems We See in Sonoma Homes
- Collapsed or crushed return ducts. Older Sonoma homes on the east side and near the Plaza often have original galvanized return runs that have been dented, crushed, or pulled apart over decades. We’ve found collapsed returns where the system was pulling air through a six-inch gap in the ductwork, not through the registers at all.
- Return ducts that were never sized right. Many 1950s to 1970s Sonoma ranches were built with undersized return air drops. That means the system pulls harder, drinks more power, and fills the coil with debris faster than it should. We can spot this on camera inspection and tell you exactly what’s happening.
- Historic plaster dust in the trunk lines. Homes built before 1940 often have lathe-and-plaster walls that shed fine dust for decades. It settles in the ductwork and then re-enters your air every time the system cycles. You can’t vacuum it out from the register side; it needs source removal.
- Attic insulation getting pulled into the system. In Sonoma attics, loose-fill insulation from older installs tends to migrate toward return boots and get sucked into the ductwork. We find it packed into the blower cabinet and coating the evaporator coil, reducing both airflow and cooling capacity.
Pricing for HVAC Cleaning in Sonoma, CA
We quote one flat price per system, agreed before any work starts. You won’t see a per-vent add-on or a price that shifts once the technician is inside. For a typical single-system Sonoma home, full furnace duct cleaning runs $390 to $690. AC coil cleaning for both evaporator and condenser runs $250 to $450. A combined HVAC cleaning, which includes the full duct system plus both coils, runs $590 to $940. Larger homes with multiple systems simply get an additional per-system price. Call (737) 727-2314 for a free estimate, and we’ll give you a written number before we schedule anything.
We Also Serve Cities Near Sonoma
Our crews serve the whole Sonoma area, including Boyes Hot Springs, Petaluma, Novato, and Cotati. So if you’re just outside the city limits and still wondering who to call for HVAC Cleaning in Sonoma, we’ve got you covered with the same flat pricing and 365-Day Done Right Promise everywhere we work.
Serving Sonoma, CA - Our Local Coverage Area
We’re based in the Sonoma 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 HVAC Cleaning in Sonoma
Most Sonoma homes need a full duct cleaning every 5 to 7 years. Older homes with original galvanized ducts, homes near vineyard roads where clay dust infiltrates, and homes with pets or recent renovation work may need it closer to every 3 to 4 years. If you have a newer build with tight ductwork and good filtration, you may be able to go 7 to 10 years. Call (737) 727-2314 and we’ll give you an honest answer for your specific house.
One flat price per system. Always. The price you’re quoted is the price you pay, regardless of how many vents or returns your Sonoma home has. We write it down before any work begins, and it does not change at the door. This is how we do every job, and it’s a direct answer to the bait-and-switch pricing that gives this industry a bad name.
We clean the furnace blower assembly, the evaporator coil, the air handler cabinet, and the condenser coil. We inspect and clean every supply and return register, and we check your filter housing and recommend a better filter if you need one. The point is a clean system end to end, not just shiny-looking registers.
Yes. Every Cardinal booking includes before-and-after photo documentation of your own ducts. You see what was there, what we removed, and what the system looks like afterward. We also run a camera inspection on request before and after so you can verify the work with your own eyes. This is The Relay Standard, and it applies to every job we do in Sonoma.
We run Rotobrush rotary brush systems for agitation, Nikro HEPA vacuums for negative-pressure extraction, and Abatement Technologies containment units so debris never re-enters your living space. For older Sonoma homes with tight crawl spaces and narrow trunk lines, the agitation tools reach where truck-mount vacuums from generic companies cannot. Call (737) 727-2314 and we’ll explain what your specific home needs.
Written by Omar Haddad, Owner at Cardinal Air Duct Cleaning, serving Sonoma and surrounding communities.




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