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.
Lennox Air Duct Cleaning in San Carlos, TX
We provide independent Lennox service across San Carlos, and the one thing that sets our Lennox work here apart is this: we diagnose the whole system, not just the ducts. San Carlos runs its cooling nearly every month of the year, so your equipment never gets a real break, and the failures we find are coil, blower and flex-duct problems that a duct-only cleaning would miss entirely. Whether yours is a Merit, Elite or Signature system, or a variable-speed air handler tucked in the attic, we clean, repair and protect the full run. Call (888) 971-5813 to book a free estimate. We answer 24/7, with fast dispatch from 7am to 7pm, Sunday through Friday.
Why San Carlos Residents Choose Us for Lennox Service
We’re not a Lennox dealer and we’re not authorized by the manufacturer. We’re an independent shop that works on these systems constantly, which means our diagnosis follows the actual condition of your ductwork and air handler rather than a factory script. That matters in San Carlos, where the climate stresses equipment in ways a generic checklist won’t catch.
We use OEM Lennox-compatible coils, gaskets and cabinet components where fit and refrigerant-circuit integrity matter, and quality aftermarket flex duct, mastic and insulation on the duct side. Our technicians have up to 12 years of experience. Scheduling is straightforward: you get a written estimate before any work starts, one flat price per system, and before-and-after photos of your own ducts so you can see what changed. We’re licensed and insured, and every job is backed by our satisfaction guarantee.
Styles & brands we work with
- Whole-home duct cleaning
- Dryer vent cleaning
- Camera inspection
- Sanitizing & deodorizing
Common Lennox Air Duct Cleaning Problems We Solve in San Carlos
- Wet cabinet-mounted evaporator coils. Lennox air handlers with internal cabinet coils stay damp for months in Rio Grande Valley humidity, so mold and mildew colonize the coil face and the supply plenum inside, not just the ducts. Evaporator coil cleaning is where we usually start.
- Leaking flex-duct takeoffs. Lennox air handlers installed in San Carlos attics commonly leak at the collar and plenum joints, and attic heat above 130°F breaks down the flex jacket until it sheds insulation downstream into your supply runs. Flex duct repair fixes the source.
- Original sheet-metal trunk lines. Older Lennox systems tied into original trunks lose volume at the joint seams, which pulls attic dust and insulation fibers into the return side and redistributes them through the house. Sealing the seams stops the leak.
- Loaded blower wheels. Lennox blower wheels collect a mat of dust and biological film that throws the wheel out of balance, cutting airflow and pushing conditioned air past a dirty coil instead of through the ducts. Cleaning the blower restores the airflow the system was built for.
- Mildew in the supply plenum. Because San Carlos cooling runs almost year-round, the plenum interior stays humid and recolonizes fast if it isn’t treated. We clean and apply a Guardsman-grade protective treatment as part of the scope.
Lennox Service in San Carlos: What Local Conditions Mean for Your Equipment
San Carlos homes are almost all single-story with attic-mounted flex duct, and that single fact shapes nearly every Lennox job here. The entire duct run sits in an attic that can climb well above 130°F in summer while the air moving through it stays cold. That temperature swing is what breaks down flex-duct insulation, and the particles it sheds are what show up as dust at your registers. So attic flex-duct condition, not just duct interior dust, is what actually drives most complaints in San Carlos. A typical job starts with video inspection of the supply and return runs, which turns up failed jacket sections and leaking plenum collars. From there a qualified local pro replaces the damaged flex, seals the joints with mastic, and cleans the evaporator coil and blower while the system is open. That last step is the one most crews skip.
Lennox Models & Products We Service in San Carlos
We service the full Lennox range found in San Carlos homes: Merit Series air handlers and condensers, Elite Series equipment, the Dave Lennox Signature Collection, and variable-speed air handlers with internal cabinet-mounted coils. Each type has its own cabinet and coil layout, and the flex-duct takeoffs differ enough that a one-size approach doesn’t fit. That’s why we choose parts by fit and function rather than badge. OEM-compatible coils and gaskets go where the refrigerant circuit and cabinet need a precise match. Quality aftermarket flex, mastic and insulation handle the duct-side work, where fit and durability matter more than the name on the box. If your equipment is older but mechanically sound, sealing and cleaning is the honest spend. If the coil or cabinet is corroded through, replacement is the straighter answer, and we’ll tell you which one you’re looking at.
See the difference
Before
After
Before
After
Before
AfterLennox Service Pricing in San Carlos
Pricing depends on system size, how many runs need attention, and whether flex duct or coil work is involved. We set one flat price per system before work starts, so there’s no per-vent charge and no surprise line items once the technician is on site. A free estimate includes a walkthrough, video inspection of the duct runs where needed, and a written scope with before-and-after photos of your own ducts when the job is done.
| Service | Typical Estimated Range |
|---|---|
| Full system cleaning | $350 – $700 |
| Evaporator coil cleaning | $200 – $450 |
| Flex duct repair (per section) | $150 – $400 |
| Blower wheel cleaning | $150 – $300 |
Call (888) 971-5813 for an exact quote. Estimates are free.
Serving San Carlos, TX – Our Local Coverage Area
We serve San Carlos and nearby communities. Use the map below to see the area we cover. If you’re nearby, we can almost certainly help.
FAQs – Lennox Air Duct Cleaning in San Carlos
It’s almost always the ducts, not the air handler itself. San Carlos attic heat above 130°F breaks down the flex jacket over a few seasons, and the cracking you see is insulation failing, not an equipment fault. Video inspection confirms it before we quote any repair.
Because the coil stays wet for months in Rio Grande Valley humidity, and the plenum interior never fully dries when your system runs nearly year-round. Cleaning alone won’t hold unless the surface is treated. We clean and apply a Guardsman-grade protective treatment to slow regrowth.
Yes. Dust and biological film build up unevenly on the wheel, throwing it out of balance and reducing the air it can move. A loaded wheel pushes conditioned air past a dirty coil instead of through the ducts, so your system works harder for less cooling.
Full system cleaning covers supply and return plus the coil and blower, and on a San Carlos system that’s usually the right call. Return-side leaks pull attic dust and insulation in, so cleaning only the supply side leaves the source running. Call (888) 971-5813 and we’ll scope it on site.
On equipment still in good mechanical shape, sealing and cleaning is the honest spend. When the coil or cabinet is corroded through, replacement is the straighter answer. We make that call on condition, not age.
Service Areas Near San Carlos
We also serve homeowners in McAllen, Palmhurst, Mission, Pharr, Alton and San Juan. If you’re just outside San Carlos, our Lennox service reaches you too. And if you’re in Murillo or Alamo, we cover those areas as well. See our San Carlos page for the full local scope.
Book Your Lennox Service in San Carlos Today
Call (888) 971-5813 for a free estimate on Lennox air duct cleaning, flex duct repair or evaporator coil cleaning in San Carlos. We answer 24/7, with fast dispatch from 7am to 7pm, Sunday through Friday. Licensed and insured, one flat price per system agreed before work starts.
Written by the team at Duct Cleaning McAllen.