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.
Before
After
Before
After
Before
AfterFast, Reliable HVAC Cleaning Across Union City
HVAC cleaning in Union City, CA typically costs $300 – $700 for a full system cleaning of a single-family home, and a standard job takes about half a day when the system is properly done. That means negative-pressure extraction, not a quick vacuum pass through the registers. Our crews know the housing stock here, from the newer developments near Union Landing to the 1960s and 70s ranchers off Mission Boulevard. Call (737) 727-2314 and you’ll get a live person, a written price before we start, and before-and-after photos of your own ductwork when we finish.
Why Cardinal Air Duct Cleaning Is Union City’s HVAC Cleaning Company
Union City sits between the Bay and the East Bay hills, which means homes here deal with two things at once: marine air pushing in from the west and valley heat rolling over the hills in summer. That combination cycles furnaces and AC systems harder than homeowners expect, and it puts real dust and salt-laden air through return ducts year round. We see the result when a system that should run clean is pushing visible dust through the registers. Our technicians know what that looks like in a Union City home, and they explain what they found before they quote the fix.
Every booking runs through The Relay Standard. You get a live trackable arrival window, our tech’s name before they knock, a written price before a single duct is touched, and a digital invoice you can pay from your phone. That’s not an upsell package. It’s how every job in Union City is booked. Omar Haddad leads the crew, and the standard he holds is simple: if the work isn’t done right within 365 days, we come back and correct it at no charge. That’s the 365-Day Done Right Promise, and it covers every job, not select ones.
We run Rotobrush rotary brush systems and Nikro HEPA vacuums, which means the loosened debris goes straight into a sealed containment unit at the truck, not back into your living room. No truck-mounted shop vac shortcuts. No per-vent pricing games.
AC Vent Cleaning in Union City
AC vent cleaning in Union City is the most common service we perform, and it’s rarely just about the visible vent covers. Most of the dust moving through your registers collected in the return trunk, the supply plenum, and the evaporator coil. When a Union City homeowner calls because dust settles on furniture within a day of wiping it, we look at the whole airflow path, not just the grilles.
How We Approach Evaporator Coil Cleaning
A coil coated in dust and grime raises your cooling bill because the system has to run longer to move heat. We clean the coil with a non-acidic foaming treatment, then rinse and capture the runoff so it doesn’t end up in the condensate pan or the filter media. In Union City’s mix of coastal air and summer heat, that coil is working harder than a lot of homeowners realize.
Registers, Grilles, and Return Path
Every vent cover and return grille gets pulled, degreased, and wiped down before we re-seat it. The return path in many Union City homes is longer than it looks, especially in split-levels and two-story houses where the return chase runs through a garage or utility closet. We inspect and clean that full path, because a clean supply register doesn’t matter if the return is pulling dirty air across the coil.
For AC vent and coil cleaning, most Union City homes fall in the $350 – $650 range depending on system size and the number of returns.
Furnace Duct Cleaning in Union City
Furnace duct cleaning in Union City homes matters most in the winter months, when the furnace runs continuously and any dust or debris in the supply trunks gets heated and pushed into every room. Older gas furnaces, especially in the 1960s and 70s subdivisions around Alvarado Boulevard and Decoto Road, often have supply trunks that never received a proper cleaning since installation.
Blower Cleaning and the Importance of a Clean Fan
When the blower wheel is caked with dust, the fan moves less air and the furnace cycles more. We remove the blower assembly, clean the fan blades by hand, and reseat the assembly with new balancer clips where needed. A clean blower on a furnace in Union City means a quieter system, better airflow, and a longer life for the motor.
Heat Exchanger Inspection During Furnace Work
We’re not HVAC contractors, so we don’t repair or replace heat exchangers, but we do inspect them for visible cracks and rust during a furnace duct cleaning. If we see something that doesn’t look right, we’ll show you the photo and recommend a licensed HVAC company. That’s part of doing the job honestly.
A complete furnace duct cleaning in Union City, including blower removal and supply trunk cleaning, runs between $400 and $750 for most homes.
Trusted Brands We Service in Union City
We service and clean systems from all major furnace and AC brands found in Union City homes, including Carrier, Lennox, Trane, Goodman, Rheem, and Amana. Because we’re local to the East Bay market, we keep common filter sizes, belt sizes, and condensate pan treatments on our trucks, so a Union City job doesn’t stall waiting for a part. When a system needs a new filter media or a replacement condensate treatment, we use Honeywell, Aprilaire, and Guardsman filtration products. If your furnace or air handler takes a non-standard size, we can order it and return once it arrives, no second trip charge.
We Also Serve Cities Near Union City
For homeowners just across the Union City line, our crews also run HVAC Cleaning routes through Fremont, Newark, San Lorenzo, and Castro Valley. The same HVAC Cleaning in Union City standards apply everywhere we work, and scheduling for those areas is coordinated from the same office that handles Union City bookings.
Common HVAC Cleaning Problems We See in Union City Homes
- Long return trunks in two-story houses. Many Union City homes built in the 60s and 70s have a single return that runs the full height of the house, pulling from both levels. That long chase collects dust for decades, and a quick vent-only cleaning leaves it untouched.
- Coil freeze-ups from dirty filters and dirty coils. We see this in summer on homes near Union Landing and the western edge of the city, where AC units run hard against the afternoon heat. A dirty evaporator coil restricts airflow enough to freeze the coil, which then thaws into a water spot on the ceiling.
- Construction dust from remodels. Union City has a lot of homes being updated, with drywall dust finding its way into the return system. That fine dust clings to blower wheels and coils, and it takes source removal, not a quick vacuum, to get it out.
- Pet hair and dander packed into return grilles. This is true in every city, but Union City’s older homes often have return grilles mounted low on the wall, where pets rub against them. We pull those grilles, degrease them, and clean the first several feet of the return path, which is where most of that hair is trapped.
Pricing for HVAC Cleaning in Union City, CA
Honest pricing in Union City looks like this: a single-family home with one furnace and one AC coil runs $300 – $700 for a full system cleaning. Larger homes, dual-zone systems, or systems with long return chases fall higher. We give one flat price per system, agreed before any work starts. We do not quote per vent, and we do not add on a line item for every register we touch. The written price we hand you is the price you pay. A free estimate is always available by calling (737) 727-2314.
Serving Union City, CA - Our Local Coverage Area
We’re based in the Union City 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 Union City
Most Union City homes need a full HVAC cleaning every 3 to 5 years, not every year. If you have pets, recent construction, or smokers in the home, that window shortens to 2 to 3 years. If you changed your filter recently and still see dust on furniture within a week, that’s a stronger signal than an arbitrary calendar. We’ll tell you honestly if your system doesn’t need cleaning yet. Call (737) 727-2314 and we can talk through what you’re seeing before you spend anything.
Per-vent pricing is how contractors pad a bill without adding real work. A home with 18 vents gets quoted a low per-vent rate that balloons once the tech arrives and “finds” more vents, more registers, more returns. We quote one flat price per system, agreed before work begins. That price covers every vent, every return, the coil, the blower, and the full trunk line. The written quote you sign is the invoice you pay.
Yes. Every job includes before-and-after photo documentation of your own ductwork. We run a camera inspection down the main return and supply trunk so you can see what’s actually there before we touch anything, and we photograph the same locations when the work is done. The Relay Standard includes that documentation on every Union City booking, no request needed. You’ll see your own ducts, not stock photos.
We handle multi-family and shared-system jobs in Union City regularly. A single furnace or air handler feeding multiple units through shared trunks is a common setup in this city’s housing stock. We coordinate access with you or the property manager, clean the full shared system, and provide documentation for each unit’s return and supply path. The flat price covers the system, not the number of units, so a three-family doesn’t get triple-billed. Call (737) 727-2314 and we can walk through your specific building setup.
No. Duct cleaning is a scheduled job and speed is not the reason to book it. A proper HEPA negative-pressure cleaning takes half a day or more, and we don’t compress it to fit a same-day call. When you book with Cardinal Air Duct Cleaning, you get a live trackable arrival window through The Relay Standard, so you know exactly when we’ll be there. Scheduling is done through our San Francisco Bay Area office, and crews serve the East Bay including Union City on a planned route.
Call Cardinal Air Duct Cleaning in Union City
If your ducts haven’t been cleaned in years, or if you’re seeing dust settle on furniture right after you wipe it down, call (737) 727-2314 for a free estimate. Omar Haddad and the team will talk through what your system needs, give you a written flat price before any work starts, and show you your own before-and-after photos when we’re done. No per-vent games. No vague arrivals. Just a clean system and a price that doesn’t change.
Written by Omar Haddad, Owner at Cardinal Air Duct Cleaning, part of the Relay Home Co. family, founded 2005.