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 Humble, TX | Hollis Air Duct Houston
We provide independent Air Duct Cleaning in Humble for Lennox systems, and the one thing that sets our work apart here is this: we know how Humble’s clay soil and attic humidity attack Lennox ductwork specifically. Original metal ducts from the 1960s and 70s corrode at the seams. Newer flex duct sags at the takeoff collars. We see it weekly in ranch homes off FM 1960 and in the subdivisions along Bender Avenue. Hollis Air Duct Houston has served Humble for years as part of the Garrison Partners family, and we carry OEM-compatible Lennox duct components plus professional-grade cleaning equipment from Rotobrush and Nikro. Call (713) 936-5800 for a written estimate before any work begins.
Why Humble Residents Choose Us for Lennox Service
Roy Castellanos runs our Houston operation with a simple rule: know the equipment, and know the dirt. Roy came up through Los Angeles Trade-Technical College and has worked air duct cleaning full time for well over a decade, including plenty of jobs where the ductwork hadn’t been touched since the original Lennox install. That matters in Humble because a Lennox system here doesn’t fail the way it does in Dallas or Austin. It fails from humidity, clay movement, and storm water. Our technicians are background-checked and uniformed. They arrive inside the quoted window. They price the job in writing before the first tool comes off the truck. And every job is covered by our 365-Day Done Right Promise: if the work fails within a year, we return at no charge. That includes a free second visit, in writing, every time.
We’re an independent Lennox service provider, not a factory-authorized dealer. What that means for you: we have no monthly quota pushing us to sell replacements when a cleaning and sealing job will do. Visit our Lennox sales & service page to see how we approach the brand across the region.
Styles & brands we work with




Common Lennox Air Duct Cleaning Problems We Solve in Humble
- Condensation rust on metal supply plenums. Humble’s attic air gets brutally humid from May through October. When a Lennox Elite or Merit system pushes cooled air through an older metal plenum, the outside of that plenum sweats. Over years, the moisture rusts the duct collars where the supply lines connect. We clean the corrosion, then seal with mastic and re-insulate to stop the cycle.
- Flex duct sag and kink on post-1990 Lennox installs. Newer Humble subdivisions used flex duct almost exclusively. It works fine if it’s supported every four feet and pulled tight. In real attics, it sags between trusses and kinks at the takeoff collar. A kinked 12-inch flex duct can cut airflow to a bedroom by half. We re-support, re-strap, and re-seal as part of the cleaning.
- Cracked mastic and degraded fiberglass on original returns. Homes built in the 1960s through the 80s along the FM 1960 corridor often have original return ducts wrapped in fiberglass that’s now flaking. The mastic at the joints dried out years ago. That means the return is pulling attic dust and humidity directly into your Lennox air handler. We clean, reseal, and re-wrap.
- Mud dauber nests and storm water intrusion near the San Jacinto River. After heavy spring rains, homes in Humble’s lower-lying areas near the river see mud dauber wasps building inside exterior duct penetrations. Water follows the nests into the duct. We remove the blockages, dry the affected runs, and seal the penetration points so it doesn’t return.
- Disconnected duct joints from clay soil movement. Humble sits on expansive clay. When it gets wet, it swells. When it dries, it contracts. That seasonal movement flexes the house enough to separate duct joints, especially where the trunk line meets branch runs. We find disconnected joints with video inspection and seal them with mastic that can flex without cracking.
Lennox Service in Humble: What Local Conditions Mean for Your Equipment
Here’s the information gain that matters if you own a Lennox system in Humble and not in Kingwood or Atascocita: the older homes along the FM 1960 corridor sit on expansive clay soils that move noticeably with seasonal wet-dry cycles. Kingwood’s newer subdivisions are built on more stable, slab-consistent ground. Here, the soil literally flexes the framing. For a Lennox system, that means the metal trunk lines and branch connections endure stress that loosens joints, cracks mastic seals, and separates collars. We have watched this happen over multiple seasons at ranch homes off Bender Avenue and Will Clayton Parkway. It’s not a maintenance failure on your part. It’s geology. And it means many Humble Lennox systems need duct sealing and periodic re-securing as much as they need cleaning. A video inspection shows exactly which joints have opened up before we touch anything.
Our full coverage area is described on the Humble service area page if you want to confirm we’re in your neighborhood.
Lennox Models & Products We Service in Humble
We work on the full Lennox residential range: the Merit Series found in many Humble starter homes and budget installs, the Elite Series common in mid-size ranch houses, and the Dave Lennox Signature Collection in higher-end properties. We also service Lennox Healthy Climate filtration and humidity-control products, including older HRV and media filter cabinets. For duct components, we install OEM Lennox-compatible collars, dampers, and plenums when the existing metal can be restored. For sealing and insulation, we often use aftermarket materials that match factory specs at a lower cost. And when Humble’s clay shifts have collapsed a run of original metal duct beyond repair, we’ll tell you straight: replacement is the honest call, not a third cleaning.
See the difference
Before
After
Before
After
Before
AfterLennox Service Pricing in Humble
Air duct cleaning for a typical Humble home runs $350 to $600 for the complete system, depending on the house size, duct count, and how many Lennox runs need re-sealing or re-insulation. Add video inspection and you’re typically looking at $100 to $175 more. Evaporator coil cleaning on a Lennox air handler runs $150 to $250 when we access it through the existing ductwork. If we find separated joints, the sealing work is quoted separately before we start, in writing. You’ll know the number before anything happens. Call (713) 936-5800 and we’ll put a written estimate together for your Lennox system specifically. Estimates are free.
Serving Humble, TX - Our Local Coverage Area
We’re based in the Humble 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 – Lennox Air Duct Cleaning in Humble
Yes, often they do. Humble’s expansive clay soil moves older homes enough to crack original duct seals and separate joints. Cleaning alone will not fix an air leak. In pre-1990 Lennox installs, we typically recommend the cleaning and sealing together, because a clean duct that still pulls attic air is still a problem. Call (713) 936-5800 and we’ll scope it with a video inspection before recommending anything.
Yes. In most Humble ranch homes, we access the evaporator coil through an existing panel or install a small access port, then clean it with professional coil cleaners and a HEPA vacuum rig. There’s no need to pull the air handler or tear out ductwork. This matters because older Lennox coils in Humble attics pick up a layer of clay dust and humidity-driven mold film that cuts cooling efficiency fast.
Mud dauber wasps can build nests inside vent caps and exterior duct penetrations. The nest blocks airflow and traps moisture in the duct, and after heavy rains, water can follow the mud into the system. Watch for reduced airflow from specific registers and a musty smell after storms. If you’re in a Humble neighborhood near the river, we recommend an exterior duct inspection at least once after spring. Call (713) 936-5800 if you suspect it.
Most of the time, yes. Sagging flex duct is usually a support issue, not a material failure. We re-strap the runs with proper spacing, clear any kinks at the takeoff collars, and re-seal the connections. If the inner liner has torn or collapsed, we replace that section of flex. You don’t need a new Lennox system because one run is drooping.
It usually does. Poor airflow in an older Humble Lennox system comes from one of several causes: separated joints from clay movement, crushed or kinked flex, dirt-packed return ducts, or a failing blower. The video camera tells us which one it is before we spend your money fixing the wrong problem. In our experience, spending $100 to $175 on inspection before cleaning prevents far larger mistakes.
Service Areas Near Humble
We serve Humble plus the surrounding communities including Atascocita, Kingwood, Spring, Houston, and Baytown. For Lennox owners in the neighboring metro, our Lennox service in Houston page covers the city proper, and Lennox service in Spring handles work in the communities north of Humble. Each of these areas has its own soil and housing patterns, and our approach adjusts accordingly.
Book Your Lennox Service in Humble Today
Clean air doesn’t announce itself – you just stop noticing the problem. If your Lennox system has been running nonstop and some rooms still feel stale, call (713) 936-5800. We’ll send a background-checked technician, put the price in writing, and stand behind the work for a full year under the 365-Day Done Right Promise.
Written by Roy Castellanos, Owner at Hollis Air Duct Houston, serving Humble and the surrounding communities.