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.
Why San Jose Homeowners Choose Carrier Air Duct Cleaning
Kestrel Air Duct San Jose provides independent Air Duct Cleaning services for Carrier systems, including coil cleaning and duct sealing throughout San Jose, from Willow Glen bungalows to Almaden Valley two-stories. We are not a Carrier-authorized dealer, and we will say that plainly up front. What we are is a crew that has opened hundreds of Carrier air handlers in this city and learned exactly how Infinity, Performance, Comfort, and WeatherMaker systems behave when San Jose’s dry heat, wildfire smoke, and decades of accumulated dust work against them. Most Carrier duct cleaning jobs in San Jose run between $450 and $900 for a full system, depending on square footage, number of returns, and how long the ducts have gone untouched. Call (669) 220-7869 for a written quote before any work begins.
Dale Whitmore and his crew have been cleaning and sealing Carrier ductwork in San Jose for years. The work is methodical, and the price is in your hands before a single vent is touched.
Why Trust Kestrel Air Duct San Jose for Your Carrier Air Duct Cleaning?
Carrier systems are not all built the same, and anyone who treats them that way is guessing. An Infinity system with variable-speed airflow and communicating controls behaves differently than a base Comfort series with a single-stage blower. Our technicians know those differences because they work on both every week. We use Rotobrush rotary brush systems to dislodge debris at the duct wall, Nikro negative-pressure units to pull contaminants out rather than push them around, and Abatement Technologies HEPA filtration to keep loosened particles out of your living space while we work. That equipment matters on a Carrier system, where high-efficiency coils and tight cabinet tolerances mean sloppy extraction can leave debris inside the air handler instead of removing it.
Dale Whitmore grew up in the San Fernando Valley and picked up his HVAC fundamentals at Los Angeles Trade-Technical College before spending the better part of two decades focused specifically on duct cleaning and indoor air quality work. He has been serving San Jose for years, with jobs ranging from older bungalows in Willow Glen to newer builds near Santana Row. He is known for methodical negative-air extraction, a process where a high-powered vacuum seals to the system and pulls debris out rather than pushing it around, and for giving homeowners a straight price before any work starts, not after.
Every job operates under the Kingswell Guarantee. That means a written price before work begins, a defined arrival window, a clean job site, and a written guarantee on the work. If the job falls short within 365 days, we return and make it right at no charge. No fine print. That guarantee is in writing on every Carrier job we complete in San Jose.
We also stock Honeywell, Aprilaire, and Guardsman filtration products for homeowners who want to maintain clean air between service visits. If you have a Carrier Infinity system, the right media filter choice matters. We will walk you through it without turning the conversation into a sales pitch.
Styles & brands we work with




Common Carrier Air Duct Cleaning Problems We Fix in San Jose
- Dust and construction debris accumulating in flex ducts on Infinity systems with high static pressure. Carrier Infinity systems are designed for sealed, well-designed ductwork. When San Jose homes get remodeled, drywall dust and debris end up in the flex runs. On an Infinity system, that debris raises static pressure, which forces the variable-speed blower to work harder and can trigger “Check Filter” alerts even with a clean filter. We clean the return plenum, the flex runs, and the supply boots to bring static pressure back down.
- Biofilm and mold growth on evaporator coils in Performance series during San Jose’s dry/wet seasonal swings. San Jose gets almost no rain for months, then a wet winter. That cycle creates condensation on Carrier Performance evaporator coils, and in dark ductwork, condensation breeds biofilm. Performance series coils are tightly finned, which makes them effective at heat transfer but also good at trapping organic material. We remove the coil cover, clean the fins with the right tools, and treat the coil so air moves freely again.
- Restricted return ducts on Comfort series causing blower motor strain and reduced airflow. Comfort series systems are Carrier’s entry-level line, and many San Jose homes have undersized or poorly routed return ducts on these units. Over time, the return duct fills with pet dander, dust, and debris. The single-stage blower strains against the restriction, airflow drops, and rooms get stuffy. Cleaning the return duct thoroughly, rather than just the supply runs, is often the difference between a system that works and one that limps.
- Loose mastic at duct joints on WeatherMaker installs leading to attic air infiltration and dust buildup. WeatherMaker systems from the 1990s and early 2000s are still common in San Jose’s mid-century ranch homes. The original duct sealing was often a thin bead of mastic that has cracked and separated over decades. When attic air leaks into the duct system, it brings insulation fibers, dust, and hot summer air with it. We reseal those joints with commercial-grade mastic that exceeds the original builder-grade installation.
- Flex duct degradation in Almaden Valley attics causing sudden airflow loss. Almaden Valley homes built in the 1970s often have flexible ductwork that has baked in attic heat for fifty years. The inner liner separates, the insulation compresses, and airflow drops suddenly, usually on the hottest day of the year when the system is working hardest. We see this call pattern every summer in San Jose. We inspect the flex runs, identify the failed sections, and either clean and reseal or replace the damaged length.
Carrier Parts & Our Repair-vs-Replace Approach
When a Carrier filter or coil needs replacement, we use OEM Carrier parts to preserve exact fit and airflow specifications. Carrier components are designed to work together, and a generic coil with different fin spacing changes the system’s static pressure and efficiency. For duct sealing and mastic, we use commercial-grade materials that exceed what most builders originally installed. There is a real difference between a tube of hardware store caulk and a proper UL-listed duct mastic, and we choose the latter every time.
Our first question on any Carrier job is whether the existing duct can be repaired rather than replaced. Many San Jose homes have sheet metal trunk lines that are dirty but structurally sound. Cleaning and resealing those ducts costs far less than replacement and often restores airflow to factory spec. If a flex run has collapsed or the inner liner has separated, replacement is the honest call, and we will show you exactly what we found before we recommend it. The written price comes first. Call (669) 220-7869 to schedule a diagnosis.
Our Carrier Service Process – Step by Step
- 1
Diagnosis. We inspect the full duct system and air handler with a camera before cleaning begins. On Carrier systems, we check static pressure, filter condition, and return duct sizing. Last week our crew opened a Carrier Performance 16 air handler in Willow Glen and found the return duct packed with years of pet dander and drywall dust from a remodel, dropping static pressure to 0.9 inches. We pulled the blower, cleaned the return plenum and flex runs, then resealed the duct boots with mastic. Airflow returned to factory spec and the homeowner said the house finally stopped smelling like dust every time the AC kicked on.
- 2
Cleaning and sealing. We use negative-air extraction on every Carrier job. The vacuum seals to the system and pulls debris out, while rotary brush agitation dislodges what is stuck to the duct wall. For evaporator coil cleaning on Performance and Infinity systems, we remove the coil cover and clean the fins directly. For duct sealing, we apply commercial-grade mastic at boots, joints, and plenum connections.
- 3
Testing. After cleaning, we re-check airflow and static pressure where applicable. On Infinity systems, we verify the control board reads normal. On Comfort and WeatherMaker systems, we check return airflow at each return grille.
- 4
Warranty in writing. Every Carrier job includes the 365-Day Done Right Promise. If the work falls short within the guarantee period, we return and make it right at no charge. That promise is documented in writing on every single job, not implied.
See the difference
Before
After
Before
After
Before
AfterCarrier Products We Service & Install in San Jose
We clean and seal ductwork across the full Carrier residential line in San Jose, with Carrier service in San Jose covering every system type. That includes Infinity Series systems with communicating controls and variable-speed blowers, Performance Series mid-range systems, Comfort Series entry-level units, and WeatherMaker systems still running from the 1990s and early 2000s. We do not sell Carrier equipment, but we know how to work on the ductwork attached to it. Our focus areas on Carrier systems are return duct cleaning, evaporator coil cleaning, and duct sealing, all with OEM-compatible materials and a written guarantee.
We Also Service These Brands
While this page focuses on Carrier, we also provide Carrier in Santa Clara and clean and seal ductwork on all major residential brands in San Jose, including Lennox and Trane. The ductwork principles are similar across brands, but the specific access points, coil configurations, and airflow behaviors differ. We know those differences and adjust accordingly. No brand is beyond our scope.
FAQs – Carrier Air Duct Cleaning Service in San Jose
The “Check Filter” alert on an Infinity system is often triggered by high static pressure, not a dirty filter. When the return duct is restricted with dust and debris, or the flex runs are collapsed, the system sees high resistance and alerts you. The fix is cleaning the return duct and plenum, not just swapping the filter. If you have changed the filter and the alert persists, call (669) 220-7869 and we will inspect the system.
Carrier warranties generally cover equipment defects, not duct cleanliness. However, a severely restricted duct system can strain the blower motor and cause premature failure, and a warranty claim can be denied if the motor failed due to lack of maintenance. Carrier documentation requires homeowners to maintain proper airflow. If your ducts have not been cleaned in five or more years, call (669) 220-7869 and we will assess the situation and clean them if needed.
Infinity systems have variable-speed blowers and tighter static pressure tolerances, so cleaning must account for pressure readings and airflow behavior at multiple fan speeds. Comfort series systems are single-stage and simpler, but their return ducts are often undersized and more prone to restriction. The cleaning process is similar, but the inspection and testing steps differ. We handle both in San Jose every week.
If dust appears right after a filter change, the filter is not the problem. Dust is likely coming from the return duct, which is pulling debris from the home or attic and distributing it through the supply runs. A dirty evaporator coil can also shed particles when condensation cycles. We open the air handler, clean the return duct and coil, and seal the plenum. Call (669) 220-7869 for an inspection if this is happening in your San Jose home.
Yes. Cleaning an evaporator coil without removing the cover is surface-level work. The fins on Carrier Performance and Infinity coils are tightly spaced, and the debris that restricts airflow sits deep in the coil, not on the visible surface. We remove the coil cover, clean the fins with the appropriate tools, and reinstall the cover with a proper seal. Any company that claims to clean a Carrier coil without opening the cabinet is not doing the job.
Most Carrier air duct cleaning jobs in San Jose run between $450 and $900 for a full system. The range depends on the square footage, the number of returns, and the condition of the ductwork. A small single-story ranch with one return will be on the lower end. A large two-story with multiple zones and a severely dirty return duct will be on the higher end. The price is in writing before any work starts, and it does not change at the door. Call (669) 220-7869 for a free estimate.
Book Your Carrier Service in San Jose, CA
If your Carrier system is blowing dust, the “Check Filter” light will not turn off, or you simply cannot remember the last time the ducts were cleaned, call Kestrel Air Duct San Jose at (669) 220-7869. A live person answers. We will schedule a time, show up in the window we gave, and put the price in writing before we touch a single vent. Clean ducts don’t need a sales pitch; the airflow speaks for itself.
Written by Dale Whitmore, Owner at Kestrel Air Duct San Jose, serving San Jose since 2004.