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 Alameda
Air Duct Cleaning in Alameda means removing the buildup inside your furnace, air handler, blower motor, evaporator coil, and duct runs so the system moves air freely and stops recirculating dust, must, and microbial growth. Most standard whole-system cleanings in Alameda run $450 – $750, and the work typically takes a full morning or afternoon, not days. You get one written flat price per system before we touch anything, no per-vent pricing, and before-and-after photos of your own ducts. Call (737) 727-2314 for a free estimate.
We’re the HVAC Cleaning team at Cardinal Air Duct Cleaning, part of the Relay Home Co. family founded in 2005. We book through The Relay Standard: a live trackable arrival window, background-checked uniformed technicians, and a digital invoice you pay from your phone. Alameda’s marine air, crawlspaces, and older housing stock shape how we set up every job here, and that local knowledge is the difference between a surface wipe and an actual clean.
Key Takeaways
- Whole-system HVAC cleaning in Alameda runs $450 – $750 on average; you receive one flat written price per system before work begins.
- No per-vent pricing. Ever. The air handler, blower, coil, and full lint pathway get cleaned, not just registers.
- Before-and-after photos of your own ducts come standard with every job, no request needed.
- Alameda’s damp marine air means microbial growth and musty odors in ducts are more common here than dust-only buildup.
Why Cardinal Air Duct Cleaning Is Alameda’s Preferred HVAC Cleaning Company
Alameda homeowners call us because we answer the phone live, hand over a written price before any work starts, and show proof of the work with photos taken inside their own ducts. Omar Haddad leads the team, and every technician is background-checked, uniformed, and trained on professional-grade equipment, not a truck-mounted shop-vac shortcut.
Local crews arrive with Rotobrush rotary brush systems, Nikro HEPA-rated negative-pressure vacuums, and Abatement Technologies containment units. That equipment matters on Alameda homes where ducts run through damp crawlspaces and tight attic returns. We set up negative pressure correctly, which means the loosened debris goes into the vacuum, not back into your living room.
Every job carries the 365-Day Done Right Promise. If the work isn’t right within a full year, we return and correct it at no charge. That applies to every booking, no exceptions, no fine print.
Furnace Cleaning in Alameda
Furnace cleaning in an Alameda home is not a quick vacuum of the filter slot. We open the furnace cabinet, remove the blower wheel, brush the heat exchanger, clean the evaporator coil if it’s installed above the furnace, and vacuum the full interior with HEPA filtration before reassembling and testing airflow. Damp winter air and return ducts pulling from under-house crawlspaces mean Alameda furnaces collect more than dust. A typical furnace cleaning here runs $250 – $400 as part of a full system cleaning.
Blower and Heat Exchanger Detail
The blower wheel is where most of the restriction builds up. A coated blower moves less air, runs hotter, and shortens motor life. We remove it, clean it properly, and reseat it. The heat exchanger gets brushed and inspected for surface cracking while the cabinet is open.
Coil Treatment and Airflow Test
Evaporator coils in Alameda homes often carry biofilm from the same moisture that causes musty returns. We apply a coil treatment that breaks down organic buildup, then verify airflow and temperature drop before we close the cabinet. If the coil is blocked, your AC will struggle all summer, which is not optional in an Alameda bungalow with original windows.
AC Vent Cleaning in Alameda
AC vent cleaning in Alameda means cleaning the full supply and return duct runs, not just wiping register covers. We seal off each register, run the Rotobrush through every supply branch, then switch the system to negative pressure with the Nikro HEPA vacuum so loosened debris is pulled out of the system, never blown back into the rooms. For homes on the island with old galvanized ducts and crawlspace returns, the return side usually carries more moisture and organic buildup than the supply side.
Supply Runs and Register Sealing
Each supply register gets removed, cleaned, and the branch behind it brushed. We cap unused or disconnected runs we find along the way. In older Alameda homes, it’s common to find a supply branch that was disconnected during a past remodel and has been pulling attic air into the system.
Return Duct and Crawlspace Inspection
The return side is where Alameda’s climate does the real damage. Crawlspace returns can pull damp air through cracked seals, which is exactly what we found at a 1920s bungalow on Sherman Street. The return duct under the house was pulling damp crawlspace air through a failed seal and the Aprilaire filter was loaded with biofilm. We sealed the return, ran source removal with negative pressure, cleaned the furnace and air handler, and the after photos showed dry, clear ducts. That’s the standard, not an upsell.
Trusted Brands We Service in Alameda
We service and clean systems from every major manufacturer, and we stock replacement filters for Honeywell and Aprilaire units common in Alameda homes. Most full cleanings include a fresh media filter, and when a Guardsman filter or coil treatment product is the right call, we carry it on the truck. Whether your furnace is a Carrier, Trane, Lennox, or a builder-grade unit from the 1990s, the cleaning protocol is the same: open, brush, vacuum, seal, test. We service all of Alameda, from the East End to Bay Farm Island.
Common HVAC Cleaning Problems We See in Alameda Homes
- Musty returns from crawlspace air leaks. Alameda’s high winter water table and marine humidity mean crawlspace ducts pull damp air through cracked seals, especially in pre-1940 bungalows and duplexes. We find this constantly on the East End and the Gold Coast.
- Microbial growth on evaporator coils. The same moisture that makes your return smell musty feeds biofilm on the coil. A dry, dusty coil is not the typical Alameda problem; a damp, coated one is.
- Blower wheels packed with dust and pet hair. Older Alameda homes with central returns and original ductwork collect heavy buildup at the blower. The blower is part of the system we clean, not an extra charge.
- Disconnected or crushed flex runs in attic spaces. Many Alameda homes have attic HVAC runs added during 1970s and 1980s conversions. Crushed flex or fallen insulation collars reduce airflow and pull attic air into the system, which shows up as dust accumulation even right after a filter change.
Pricing for HVAC Cleaning in Alameda, CA
We give one flat price per system before any work begins. For a typical Alameda home with one furnace and AC system, full HVAC cleaning runs $450 – $750 depending on the number of duct runs, whether you have a crawlspace return, and how much buildup is present. A standalone furnace cleaning runs $250 – $400. A larger home with multiple systems in the East End or on Bay Farm Island may run higher, but you’ll see the number in writing before we open a single panel.
No per-vent pricing. No surprise add-ons. The price you approve is the price you pay, and the 365-Day Done Right Promise stands behind it. Call (737) 727-2314 for a free phone estimate and a written quote.
We Also Serve Cities Near Alameda
Our crews serve the entire Bay Area island and nearby East Bay communities, including Oakland, Piedmont, Emeryville, and Berkeley. If you’re in any of those cities, the same HVAC Cleaning process, pricing model, and 365-Day Done Right Promise apply.
Serving Alameda, CA - Our Local Coverage Area
We’re based in the Alameda 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 Alameda
Most Alameda homes benefit from a full system cleaning every 4 – 6 years, but homes with crawlspace returns, pets, recent remodeling, or visible dust at registers within weeks of a filter change may need it sooner. If your ducts are dry, your filter is clean, and there’s no musty smell, you likely don’t need cleaning yet. We’ll tell you honestly either way. Call (737) 727-2314 for a straight answer.
One flat price per system, written down before we touch anything. Per-vent pricing creates an incentive to rush each register and skip the air handler, blower, and full lint pathway where the actual buildup sits. We don’t offer it, and we never will. The price you approve is the full price.
Yes. Every job includes before-and-after photos of your own ductwork, coils, and air handler. You see exactly what we cleaned and what it looked like before and after, delivered with your digital invoice through The Relay Standard.
For a home with a crawlspace, we start with a camera inspection of the return side, seal any air leaks pulling damp crawlspace air, set up negative pressure with the Nikro HEPA vacuum, brush the supply runs with the Rotobrush, clean the furnace, blower, and coil, then photograph everything. Crawlspace returns are the number-one source of musty HVAC odors in Alameda, and skipping that inspection makes the rest of the job pointless.
No, and that’s deliberate. A real HVAC cleaning takes several hours and is scheduled by appointment. We don’t rush jobs to hit a same-day promise. You’ll get a live trackable arrival window through The Relay Standard and a written price before work starts. Call (737) 727-2314 to schedule a free estimate.
Written by Omar Haddad, Owner at Cardinal Air Duct Cleaning, serving Alameda through the Relay Home Co. family since 2005.




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