Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
Sanitizing & deodorizingWhole-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 Citrus
HVAC cleaning in Citrus means dealing with a specific kind of buildup: decades of fine grit from unpaved roads, citrus pollen from the orchards that still line parts of the area, and old ductwork that was never designed for modern air conditioning loads. We work on ranch homes off Citrus Avenue, tract houses near Barranca Street, and the larger rural properties east toward the foothills. Our crews know the housing stock here, and we know what hides in the ducts. If your system needs cleaning, call (424) 688-1845 and we’ll get you scheduled with a written price before any work starts.
Why Cardinal Air Duct West Covina Is Citrus’s Preferred HVAC Cleaning Company
Citrus homeowners call us because we show up in uniform, with equipment that matches the job, and we charge exactly what we quoted. No per-vent games, no bait pricing. Each technician is background-checked and you’ll know their name before they arrive. Omar Haddad leads our team, and he’s built the operation around a simple standard: if the work isn’t right within 365 days, we return and correct it at no charge. That’s the 365-Day Done Right Promise, and it applies to every booking without exception.
We’re part of the Relay Home Co. family, founded in 2005, and every job is held to The Relay Visibility Guarantee. That means a live trackable arrival time, before-and-after photos of your actual ducts, and a digital invoice you can pay from your phone. For Citrus residents, the booking and arrival experience matters as much as the cleaning itself, and that’s why we built it phone-first.
Styles & brands we work with




Furnace Cleaning in Citrus
Furnace cleaning in Citrus is different from a basic filter change. Many homes here still run original gas furnaces installed in the 1960s and 1970s, and those systems have heat exchangers, blower wheels, and duct branches that haven’t been opened in decades. A proper cleaning involves pulling the blower assembly, brushing the heat exchanger, cleaning the evaporator coil if it’s a combined system, and running negative-pressure extraction through the supply and return ducts so loosened debris goes into the vacuum instead of back into your living room. Most furnace cleanings in Citrus run $350 to $550 for a typical single-family home, depending on system size and access.
Blower and Heat Exchanger Work
The blower wheel is where we see the most buildup in Citrus homes, especially on rural properties where unpaved driveways and dirt roads kick fine dust into return air. A clogged blower wheel drops static pressure across already-undersized duct runs, which means weak airflow at the registers and a furnace that runs longer to hit the thermostat. We remove the blower, clean the wheel and housing, and check the heat exchanger for cracks or rust while it’s open.
Dead-End Duct Sealing
In older Citrus attics, abandoned gravity furnace branches are common. Those dead-end runs collect dust, rodent nests, and decades of citrus pollen. If they’re left open, they re-contaminate freshly cleaned ducts within months. We identify them during the job, cap them, and focus negative pressure on the live runs so you’re not paying to clean ductwork that should be sealed off entirely.
AC Vent Cleaning in Citrus
AC vent cleaning in Citrus addresses the registers, grilles, and the duct runs behind them that pull Santa Ana grit and orchard pollen into your system. Long cooling seasons in the eastern San Gabriel Valley mean your AC runs hard from May through October, pulling airborne particles into the return ducts every hour it’s on. Most AC vent cleaning jobs in Citrus run $300 to $450 when combined with a full duct cleaning, and that includes register removal, cleaning, and reinstallation.
Register and Return Cleaning
Supply registers and return grilles collect a film of dust and pollen that restricts airflow at the point of delivery. We remove each register, clean it with a HEPA-filtered vacuum, and wipe the surrounding boot before reinstalling. On homes with floor registers in slab foundations, we use a mirror scope to check for debris that’s dropped into the boot, which is common on properties where floors sit close to the ground.
Evaporator Coil Cleaning
In Citrus, evaporator coils get coated with a sticky mix of dust and citrus tree particulate. That coating insulates the coil, reduces cooling capacity, and pushes humidity higher inside the house. We access the coil, apply a professional-grade cleaner, and rinse with low pressure so the condensate line doesn’t get packed with sludge. Coil treatment runs $180 to $280 as an add-on during a full HVAC cleaning.
Trusted Brands We Service in Citrus
We service and clean systems built around the brands Citrus homes actually have: Honeywell media cabinets, Aprilaire filtration housings, and Guardsman filter products all show up regularly in the homes we work on. Our crews run Rotobrush rotary agitation tools and Nikro HEPA-rated vacuums; professional-grade equipment that pulls debris out rather than pushing it around. If you’ve been running a Honeywell media cabinet without regular service, the media can load up with fine silt from unpaved shoulders and turn an expensive filter into an airflow restriction. We stock common filter sizes locally so there’s no waiting on parts when we’re already in Citrus.
See the difference
Before
After
Before
After
Before
AfterCommon HVAC Cleaning Problems We See in Citrus Homes
- Original gravity furnace conversions with abandoned branches. Houses built between 1950 and 1975 often had gravity furnaces replaced with forced air systems, but the old duct branches were left in place. They collect rodent nests and decades of citrus leaf litter, and they re-contaminate cleaned ducts unless sealed.
- Fine grit from unpaved roads and driveways. Rural properties around Citrus sit on dirt or decomposed granite roads. Fine dust gets pulled into return ducts and packs onto blower wheels within a few seasons, dropping static pressure on already-undersized duct runs.
- Santa Ana wind blow-ins. When the winds come through the foothills, they push dry dust and pollen through any gaps in the ductwork and into the system. Homes with original galvanized ductwork from the 1960s often have gaps at the joints where fine silt enters.
- Mold re-growth in flex duct after coil cleaning. If a previous cleaning left moisture in the ducts during humid winter months, mold can re-establish in flex duct runs. We run a dry-out pass after any evaporator coil cleaning when conditions call for it.
On a ranch-style home off Citrus Avenue, our tech found an original galvanized supply trunk in the crawlspace with a disconnected branch feeding a closed-off addition, packed with decades of dry citrus leaf litter and rat droppings. We capped the dead run, then ran negative pressure with Rotobrush agitation tools through the live supply and return ducts, restoring airflow to a Honeywell media cabinet that had been choking on fine silt from the unpaved shoulder. That’s the kind of job that only gets caught when someone actually looks.
Pricing for HVAC Cleaning in Citrus, CA
We quote one flat price per system before any work starts, and it doesn’t change at the door. For a typical single-family home in Citrus, a full HVAC Cleaning runs $450 to $650, which includes furnace cleaning, evaporator coil cleaning, supply and return duct cleaning, and register service. A standalone furnace cleaning runs $350 to $550. AC vent cleaning alone runs $300 to $450. Larger systems, multiple units, or outbuildings add cost, but you’ll see the exact number on paper before we touch a duct. Estimates are free; call us for a written quote.
We Also Serve Cities Near Citrus
Our crews cover HVAC Cleaning in Citrus and the surrounding communities in the eastern San Gabriel Valley, including West Covina, Pomona, Whittier, and Diamond Bar. If you’re in one of those areas and dealing with the same dust, pollen, and aging ductwork, we can help.
Serving Citrus, CA - Our Local Coverage Area
We’re based in the Citrus 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 Citrus
Every 3 to 5 years is the realistic interval for most Citrus homes, but rural properties on unpaved roads should lean toward every 2 to 3 years. The fine grit from dirt roads loads blower wheels faster than in suburban tracts, and citrus bloom adds an organic particulate layer that traps moisture. If you can see dust on your supply registers within a week of wiping them, you’re past due. Call (424) 688-1845 and we’ll tell you what you actually need based on your system.
They should be sealed off, not cleaned. Abandoned branches are dead-end runs with no airflow, so any dust and rodent debris inside them stays put during a normal cleaning and then re-entrains into the live ducts later. We cap them at the trunk connection and focus cleaning on the active ductwork. If they’re accessible in a crawlspace, removal is sometimes possible, but capping is usually the practical fix.
Yes. Wood heat introduces creosote particulates and fine ash into the home’s air, and if the wood stove or fireplace shares a return path or sits near a return duct, that material gets pulled into the blower and heat exchanger. We spend extra time on blower wheel cleaning and filter media replacement on wood-heated Citrus properties. Plan on a cleaning interval at the shorter end of the 3-year range.
Yes, when done correctly. Negative pressure means the vacuum creates suction at the register while agitation tools loosen debris inside, so dust flows out of the duct into a HEPA-filtered unit instead of blowing into the house. Original galvanized ducts from the 1960s are usually thick enough to handle it, but we inspect for rust, loose joints, and collapsed sections before we start. If a section is too deteriorated, we’ll tell you before cleaning it and recommend sealing or replacement instead.
Usually not. Detached shops, ADUs, and pool houses that run their own HVAC only need cleaning every 4 to 6 years, unless the building sits on a dirt drive or has animals inside, which shortens the interval. The main house pulls in more airborne material because it runs longer hours and has more foot traffic. We’ll include outbuilding systems in our written quote if you want them done on the same visit.
Call (424) 688-1845 for a free estimate. You’ll get a live person, a written price before work starts, and before-and-after photos of your ducts when we’re done. If something isn’t right within 365 days, we come back at no charge; that’s the promise on every job in Citrus.
Written by Omar Haddad, Owner at Cardinal Air Duct West Covina.