Carrier Air Duct Cleaning Service Nationwide

Why Los Angeles Homeowners Choose Carrier Air Duct Cleaning

Hollis Air Duct Cleaning provides independent Carrier service in Los Angeles, from Echo Park to Encino to San Pedro. We’re not a Carrier authorized dealer, and we don’t pretend to be one. What we do is know Carrier equipment: Infinity communicating systems, Performance split systems, Comfort builder-grade units, and the duct and coil problems each one develops in LA’s specific climate. If you own a Carrier system and your air smells off, your rooms won’t balance, or dust returns within days of cleaning, call (361) 326-5060. We’ll find the real cause and give you a written price before any work starts.

Call (361) 326-5060

Los Angeles is a unique service market for Carrier equipment because the city’s housing stock spans three generations of duct architecture. A Carrier Infinity system in a 1960s Sherman Oaks ranch home moves air through completely different ductwork than the same model installed in a 2020 downtown condo. Our technicians are trained to read both. That’s the difference between a cleaning that lasts and one that just blows air around for an afternoon. Roy Castellanos, our owner, started in Boyle Heights and learned duct work through the sheet metal and air conditioning program at Los Angeles Trade-Technical College. He built this company around a simple principle: clean ducts, straight answers – that’s the whole job.

Why Trust Hollis Air Duct Cleaning for Your Carrier Air Duct Cleaning?

Carrier systems, particularly the Infinity and Performance lines, are engineered differently from other brands. That matters when someone is cleaning the air handler or duct system. The Infinity series uses a communicating wall control that talks directly to the variable-speed blower motor. If a technician doesn’t understand how that communication works, he can misdiagnose a simple static pressure problem as a motor failure and sell you a replacement you don’t need. Our team has worked on Carrier residential and light commercial systems throughout Long Beach and Los Angeles for over a decade. We’ve seen the failures that repeat across thousands of units, and we know which ones are duct-related and which ones are equipment-related.

Roy Castellanos spent years doing hands-on duct work before starting Hollis Air Duct Cleaning. He trained at LATTC’s sheet metal and air conditioning program, then logged years crawling through Los Angeles attics and crawlspaces, learning what real Carrier failures look like up close. That experience informs every job we take. We don’t send a salesperson with a coupon book. We send a background-checked, uniformed technician who carries professional-grade Rotobrush rotary brush systems and Nikro negative-air machines, and who knows how to work on Carrier equipment without voiding your warranty. Every job gets a written price before we touch anything, and every job is covered by the 365-Day Done Right Promise in writing.

Common Carrier Air Duct Cleaning Problems We Fix in Los Angeles

These are the issues we see most often on Carrier systems in Los Angeles homes. If any of them sound familiar, call us. We’ve fixed each one hundreds of times.

• The blower deck gasket failure on Infinity and Performance air handlers. Carrier Infinity and Performance air handlers use ECM blower motors mounted to a blower deck with a thin felt gasket. Over three to six years, that gasket compresses and tears, especially in LA attics where summer temperatures exceed 130°F. Once it fails, unfiltered air bypasses the filter entirely, loading the evaporator coil with dust and dirt. You’ll notice dust reappearing on furniture within days of cleaning, even though the filter looks clean. We stock OEM-equivalent blower gaskets to fix this properly.
• Condensate pan cracks and drain sludge on 24ANB and 24ACC matched coils. Carrier indoor coils paired with 24ANB and 24ACC condensing units have a sloped plastic drain pan. Over time, especially with LA’s hard water and occasional freezing cycles, that pan develops micro-cracks or produces a biological sludge that re-wets the coil after the AC shuts off. That constant moisture feeds microbial growth in the return duct, which is what you’re smelling when your AC first kicks on. Cleaning the ducts alone won’t fix this. The pan and coil have to be addressed too.
• Collapsed or torn flex duct on older Comfort series installations. Los Angeles has tens of thousands of 1990s and 2000s-era tract homes in the San Fernando Valley with Carrier Comfort series equipment connected to flex duct runs in the attic. Those flex ducts are now 20 to 30 years old. They collapse at the bend, tear at the collar behind the filter grille, and pull loose at the plenum connection. The result is pressure imbalance: some rooms stay hot, others freeze you out, and the blower works harder than it should. We seal or replace the affected runs with mastic and proper collars.
• Communicating controls masking static pressure problems on Infinity systems. Your Carrier Infinity touch control is a useful piece of engineering, but it has a blind spot. When duct static pressure climbs because of a restricted return or dirty coil, the communicating system ramps the blower speed to compensate. That keeps the air moving, which sounds fine, until the coil ices up or the ECM blower overheats. We’ve measured static pressure drops from 0.92 to 0.68 inches of water column after a proper cleaning and duct sealing. Homeowners don’t usually notice the problem until it’s expensive.
• Wildfire ash infiltration after Santa Ana events. This one is specific to Los Angeles. After the Palisades and Eaton Fires in 2025, and going back to Woolsey in 2018, we saw sudden surges in demand from homeowners whose return ducts were pulling in fine ash through leaky joints and old filter racks. Carrier systems with high-efficiency filtration from Honeywell and Aprilaire handle ash better than standard 1-inch filter racks, but only if the duct system is sealed. Ash is fine enough to bypass a loose filter rack entirely and coat the blower wheel and coil in a gray film. We clean that out and seal the sources.

Carrier Parts & Our Repair-vs-Replace Approach

Carrier OEM parts are well-made, but they’re not always the smartest buy. An OEM blower gasket for an Infinity air handler can run two to three times the cost of an OEM-equivalent aftermarket part with identical materials and fit. We keep a local inventory of the parts that fail most often: blower deck gaskets, coil pan gaskets, flex duct collars, and mastic. When OEM parts are backordered or priced without reason, we use quality aftermarket suppliers that meet or exceed the original spec. We’ll tell you which is which and why it matters before we install anything.

Our repair versus replace decision for Carrier equipment is straightforward. If the cabinet is sound, the coil passes a nitrogen pressure test, and the blower motor is within spec, we repair. We only recommend replacement when we can point to a leak confirmed by pressure testing, or cabinet rust-through that has compromised the unit. We don’t sell replacement systems on commission, and we don’t invent problems to pad an invoice. Call (361) 326-5060 and we’ll give you an honest assessment with a written price, whether that’s a repair or a replacement.

Our Carrier Service Process – Step by Step

1. 1
   Diagnosis, including static pressure measurement. Before we clean anything, we measure the static pressure across your Carrier system. This tells us whether the problem is the equipment, the ducts, or both. If you have an Infinity communicating control, we read the stored fault history and blower runtime data. Then we do a video inspection of the coil, blower, and duct interior.
2. 2
   Repair or cleaning, priced in writing before work starts. We tell you what we found, what it costs to fix, and what it costs to clean. The price is written down and it does not move at the door. No surcharges for tight attics, no added fees for “extra vents.” One flat price per system.
3. 3
   Cleaning and repair with professional-grade equipment. We use Rotobrush rotary brush systems to agitate and remove debris from the duct walls while a Nikro negative-air machine keeps the house under negative pressure, so the dust we dislodge goes into the collection canister, not your living room. Evaporator coil cleaning uses an approved coil cleaner that won’t corrode the aluminum fins on Carrier coils. Blower cleaning removes the blower wheel and cleans each blade for real airflow restoration.
4. 4
   Verification and before-and-after photos. We show you what your ducts and coil looked like before and after. If we found a blower deck gasket failure or a torn flex duct collar, we show you the repair and the new static pressure reading. You’ll know the work was done because you can see it with your own eyes.
5. 5
   365-Day Done Right Promise in writing. Every job is covered by our one-year guarantee. If the work fails within a year – if the coil re-fouls, if the duct seal fails – we come back at no charge. That includes a free second visit. Not negotiated. Written down.

Carrier Products We Service & Install in Los Angeles

We work on the full range of Carrier residential and light commercial equipment installed in San Diego and Los Angeles homes. The Infinity series, with its variable-speed air handlers and communicating controls, is the flagship line and gets the most attention for its hidden static pressure issues. The Performance series, both single-stage and two-stage, is the most common in mid-size LA homes and is where we see the most blower gasket failures. The Comfort series, builder-grade and paired with older flex duct, shows up most often in San Fernando Valley tract homes with aging duct systems. On the condensing side, we service 24ANB, 24ACC, and 24ABC units paired with their matching indoor coils. Lennox and Trane owners are welcome too – our technicians are cross-trained on both.

We Also Service These Brands

Carrier is a major part of our Los Angeles service base, but we’re not a single-brand shop. We service Lennox and Trane equipment with the same diagnostic discipline and written pricing. That multi-brand experience keeps us honest: we recommend what’s right for your system, not what’s easiest for us. If you own a Lennox or Trane and want the same written-price, 365-day guarantee, call (361) 326-5060.

FAQs – Carrier Air Duct Cleaning Service in Los Angeles

Is Hollis Air Duct Cleaning authorized by Carrier? No. Hollis Air Duct Cleaning is an independent service company. We are not authorized, endorsed, or partnered with Carrier, and we do not perform warranty work on Carrier’s behalf. What we do is service, clean, and repair Carrier equipment using our own training and OEM-equivalent or quality aftermarket parts. If your system is still under the manufacturer’s warranty, our work is done in a way that protects that warranty, but the warranty itself stays with Carrier.

My Carrier Infinity system runs a constant fan but some rooms never get cool. Is that a duct problem or an equipment problem? In most Los Angeles homes, that’s a duct problem, not an equipment problem. Carrier Infinity systems ramp the blower speed to overcome static pressure, which hides restrictions until other symptoms appear. The typical culprits are a collapsed flex duct run, a restricted return, or a failed blower deck gasket that’s letting unfiltered air load the coil. We’ll measure static pressure and video-inspect the ducts to find the exact restriction before we recommend anything. Call (361) 326-5060 and we’ll diagnose it, no guesswork involved.

Does a Carrier Performance series air handler need a different cleaning method than other brands? It needs a technician who knows where debris accumulates in Performance series cabinets. The blower deck gasket on Performance air handlers is a frequent failure point, and the coil sits in a position where standard coil-cleaning foams can drain onto the control board if the technician isn’t careful. We use an approved cleaner, protect the electronics, and inspect the gasket as part of every Performance series cleaning. It’s not a different machine as much as a different set of failure points.

Why does my Carrier Comfort series system smell musty when the AC first starts? That musty smell is almost always microbial growth on the evaporator coil or in the condensate pan, fed by the coil staying wet between cycles. In Los Angeles, Comfort series systems paired with aging flex ducts tend to have higher humidity levels in the duct system than the surrounding air. When the AC kicks on, the blower pushes that smell into the house. Cleaning the ducts won’t stop it. We clean the coil, treat the drain pan, and seal the duct leaks that are pulling moisture into the system from the crawlspace or attic.

Can you seal leaks in Carrier flex duct without replacing the whole run? Yes, in most cases. If the tear is at the collar behind the filter grille or at the plenum connection, we can seal it with mastic and a proper tension band rather than replacing the entire flex run. Collapsed sections need to be cut out and replaced, but even that is usually a partial replacement. We’ll show you the video inspection first so you can see exactly what needs to be done. The price is written down before any work starts, and it does not change.

How much does Carrier air duct cleaning cost in Los Angeles? For a typical Los Angeles single-family home with a single Carrier system and 10 to 15 vents, full air duct cleaning runs $450 to $850. Add evaporator coil cleaning and you’re looking at $600 to $1,100. Duct sealing on top of that, depending on how many leaks we find, adds $300 to $900. Every job gets one flat price per system written down before we start. Call (361) 326-5060 for an exact quote on your home – estimates are free, and the price we quote is the price you pay.

Book Your Carrier Service in Los Angeles, CA

If your Carrier air ducts need cleaning, your rooms won’t balance, or your AC smells like a wet basement every time it starts, call (361) 326-5060. We’ll schedule a visit, diagnose the real cause, and give you a written price before any work begins. Background-checked, uniformed technicians. Professional-grade equipment. The 365-Day Done Right Promise in writing. That’s the Hollis Air Duct Cleaning standard in Los Angeles.

Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Los Angeles County since 2004.