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
AfterWhy San Antonio Homeowners Choose Carrier Air Duct Cleaning
CleanRun Air Duct Cleaning San Antonio provides independent Carrier air duct cleaning, coil service, and Air Duct Cleaning services including duct sealing for Infinity, Performance, and Comfort Series systems throughout the metro area. We’re not a Carrier dealer or authorized representative - we’re an independent shop that has documented thousands of Carrier duct runs in San Antonio since 2013, and we know how these systems fail in 150°F attics and cedar-pollen winters. Call (726) 600-7155 for a written price before any work starts.
Carrier’s variable-speed air handlers and high-SEER coils are engineered for efficiency, but Carrier in San Antonio faces a combination of extreme attic heat, caliche dust intrusion, and winter mountain cedar pollen that creates failure modes you won’t find in Carrier’s national literature. Our crews have pulled cameras through enough Carrier plenums to know where the mastic cracks, where the flex collapses, and which coil fins clog first. That specificity is what this page is for.
Why Trust CleanRun Air Duct Cleaning San Antonio for Your Carrier Air Duct Cleaning?
Our technicians trained on Carrier’s Infinity and Performance systems during the years those lines dominated San Antonio new construction, particularly in north-side developments like Stone Oak and the Helotes corridor where builder-grade Comfort Series installs were common from 2005 to 2015. We also handle Carrier Air Duct Cleaning in Alamo Heights, TX. We know the difference between a 24ANB Infinity condenser and a 24ACC Performance unit without reading the nameplate, and we know which duct configurations each one was paired with in local tract homes.
Tomas Reyes, our owner, developed his approach to duct documentation in Queens, NY, where he trained in HVAC systems technology at Queensborough Community College before moving into hands-on ductwork across the Northeast. He brought that method to San Antonio, and the habit stuck: the camera goes in first. Then we talk. Every Carrier job we quote starts with a video scope of the return plenum and at least two supply runs, so the written price you receive is based on what we actually found, not a flat-rate guess.
We carry OEM-spec Carrier-compatible mastic, foil tape, and R-8 flex duct rated for the static pressure demands of variable-speed blowers. For filter racks, door gaskets, and coil access panels, we stock genuine Carrier parts when available and quality aftermarket equivalents when they’re not. Our work is backed by Haven Standard Clause 1 (written price before work starts) and Clause 6 (365-Day Done Right Promise), both printed on every job record.
Common Carrier Air Duct Cleaning Problems We Fix in San Antonio
- Plenum mastic failure on fiberglass duct board. Carrier systems installed in San Antonio during the 2000s often used fiberglass duct board plenums sealed with water-based mastic. Attic temperatures above 150°F for four months every summer bake that mastic until it cracks and powderizes. The return plenum loses suction, pulling unfiltered attic air through gaps. We see this constantly in Monte Vista and Lavaca renovations where the original Carrier air handler still runs. Our fix: remove failed mastic, apply high-temp OEM-spec mastic rated for continuous 200°F exposure, and photograph the seal before closing.
- Evaporator coil fouling on cased coils (CNPVP/ADP-style). Carrier’s high-SEER coils use tighter fin spacing than older designs. In San Antonio, that means Hill Country caliche dust and winter cedar pollen pack between fins faster than on Trane or Lennox equivalents. A fouled coil raises head pressure, reduces airflow, and can trip the low-pressure switch on Infinity systems. We clean with foaming cleaner and low-pressure rinse, then document fin condition with before-and-after photos.
- Flex duct collapse at the variable-speed blower collar. Carrier Infinity and Performance air handlers (FE4, FV4, FX4) ramp blower speed to maintain airflow against rising static pressure. When R-8 flex duct sags at the air handler collar - common in attics where straps degrade in heat - the blower can pull the flex flat against itself. The system throws a low-airflow fault or simply overheats rooms at the end of long duct runs. We replace crushed flex with properly supported R-8, sized for the blower’s maximum rated static.
- Biological growth on blower wheels and secondary heat exchangers. Carrier 58-series furnaces with leaky return ducts in unconditioned attics draw humid San Antonio air through gaps. The blower wheel and secondary heat exchanger become growth media. This isn’t a filter problem; it’s a duct integrity problem. We scope the return, seal leaks with mastic and foil tape, then clean the affected components. Without sealing first, the growth returns within two seasons.
- Return plenum gaps from caliche dust abrasion. San Antonio’s periodic southwesterly dust events deposit fine limestone particulate that abrades flex duct and tape at return plenum joints. On Carrier systems with single-return designs common in 1990s-2000s builds, this creates a concentrated wear point. We inspect with camera scope, replace abraded sections, and upgrade to foil tape with acrylic adhesive rated for UV and dust exposure.
BeforeAfterCarrier Parts & Our Repair-vs-Replace Approach
We stock OEM-spec Carrier-compatible mastic, foil tape, R-8 flex duct, and filter racks for same-day repair on most San Antonio calls. For discontinued Carrier plenum components - common on 15-20-year-old systems - we source quality aftermarket equivalents rated for the same static pressure and temperature exposure, and we document the substitution on your written job record.
If your Carrier evaporator coil is fouled past cleaning or your duct board plenum is disintegrating, we’ll tell you straight. Sometimes a coil replacement beats repeated cleanings. Most of the time, though, Carrier duct issues in San Antonio are repair-not-replace: seal the plenum, support the flex, clean the coil, and the system runs another decade. Haven Standard Clause 1 applies either way - written price before work starts, every time. Call (726) 600-7155 and we’ll put a number next to your symptom.
Our Carrier Service Process - Step by Step
- 1
Video diagnosis. We camera-scope the return plenum, at least two supply runs, and the evaporator coil access area. For Carrier Infinity systems, we also log blower RPM and static pressure readings from the control board. You see what we see before any price is written.
- 2
Written scope and price. Based on the camera footage, we deliver a written scope with line-item pricing: coil cleaning, duct sealing, flex replacement, or full system cleaning. Haven Standard Clause 1: no work starts until you have the price in writing.
- 3
Repair and cleaning. We use Rotobrush and Nikro negative-pressure extraction equipment, plus Abatement Technologies HEPA filtration on all Carrier jobs. Evaporator coils get foaming cleaner and low-pressure rinse. Duct sealing gets high-temp mastic and foil tape, not duct tape. Every step is photographed.
- 4
Post-service testing. We verify temperature split, static pressure, and room-to-room airflow balance. On Carrier variable-speed systems, we confirm the blower ramps properly through its speed range without low-airflow faults.
- 5
Documented record and warranty. You receive before-and-after photos of every duct run cleaned or sealed, plus the written scope and 365-Day Done Right Promise. Haven Standard Clause 6: if it’s not right, we make it right.
Carrier Products We Service & Install in San Antonio
We service and clean ductwork for Carrier Infinity Series (24ANB/25VNA variable-speed condensers, FE4/FV4 air handlers), Performance Series (24ACC two-stage condensers with CNPVP cased coils), Comfort Series (24ABB single-stage builder-grade systems), and 38MURA/40MUAA ductless mini-splits where present in converted garages or additions. We stock filter racks, door gaskets, and coil access panels for Infinity and Performance lines, plus R-8 flex and mastic rated for all Carrier static-pressure specifications.
We Also Service These Brands
Our crews are equally familiar with Lennox iComfort and Signature systems and Trane XV/XL variable-speed lines. Multi-brand fluency matters because many San Antonio homes have mixed systems - a Carrier air handler paired with a Lennox condenser from a previous replacement, for instance. We service what you have, document what we find, and quote in writing.
FAQs - Carrier Air Duct Cleaning Service in San Antonio
No. We are an independent service provider, not authorized or endorsed by Carrier Corporation. We service Carrier equipment based on hands-on experience and factory technical literature, but we do not represent Carrier or warranty their products. Our 365-Day Done Right Promise covers our workmanship only. Call (726) 600-7155 for details.
We use genuine Carrier filter racks, door gaskets, and coil access panels when available. For discontinued plenum components or sealants, we use OEM-spec Carrier-compatible parts rated for the same static pressure and temperature exposure. Every substitution is documented on your written job record under Haven Standard Clause 2: Specified Materials.
This usually means the variable-speed blower is ramping against high static pressure caused by a restriction - crushed flex at the air handler collar, a fouled evaporator coil, or a return plenum leak pulling attic air. The system tries harder but moves less conditioned air. We scope the return, measure static pressure at the control board, and find the restriction. A Bulverde-area homeowner with a 2016 Infinity 25VNA had exactly this symptom: crushed flex plus plenum mastic failure. We also see this pattern in nearby communities, and we provide Carrier Air Duct Cleaning in Castle Hills, TX. We replaced the flex, sealed the plenum, cleaned the coil, and all rooms balanced within 2°F. Call (726) 600-7155 if this sounds familiar.
It helps if the coil is actually fouled. Carrier’s high-SEER coils with tight fin spacing trap San Antonio dust and cedar pollen faster than older designs. A clean coil transfers heat properly, reduces head pressure, and lets the blower move rated airflow. We camera-scope first and show you the fouling before quoting coil cleaning. If the coil is clean, we don’t sell you cleaning you don’t need. Call (726) 600-7155 for a scope and honest assessment.
Most 2000s Carrier ductwork in San Antonio is repairable. Fiberglass duct board plenums often need mastic replacement, and flex duct may need support upgrades, but the metal trunk lines and air handler cabinets typically have decades of life left. We scope first, then recommend. Full replacement is rare unless the duct board is physically disintegrating or the trunk is improperly sized for a modern high-SEER upgrade. Call (726) 600-7155 for a written second opinion on any replacement quote.
Every three to five years for standard households, every two to three if you have pets, allergies, or live in the direct path of cedar pollen corridors like the Hill Country fringe. San Antonio’s winter cedar season is unique - no other major Texas market sees this pollen load in December through February. If your Carrier system runs heat during cedar season, pollen loads the return and recirculates on every cycle. We recommend a post-cedar inspection in March. Call (726) 600-7155 to schedule.
Whole-system Carrier duct cleaning in San Antonio typically runs $380-$620 for a single-system home up to 2,500 square feet, depending on duct accessibility and contamination level. Evaporator coil cleaning adds $180-$280. Duct sealing is quoted by linear foot after camera scope. We deliver one flat price per system, agreed in writing before work starts - no per-vent pricing, no add-ons once the truck is parked. Call (726) 600-7155 for an exact quote; estimates are free.
Book Your Carrier Service in San Antonio, TX
Call (726) 600-7155 to schedule your Carrier system inspection. A live person answers, 24/7. We’ll send a background-checked, uniformed technician with a camera scope and a written price sheet - no exceptions, no surprises. Every job includes a Documented Photo Record of every duct run and the 365-Day Done Right Promise in writing.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning San Antonio, serving San Antonio since 2013.