Lennox Air Duct Cleaning in Houston, TX | Bellows Air Duct & Vent Co. of Texas
Our Air Duct Cleaning in Houston for Lennox systems typically runs $350-$850 for a full system, and most jobs we do are completed in a single visit. What separates our work here from other Texas markets is straightforward: Houston’s near-constant AC operation and Gulf humidity create a unique strain on Lennox ductwork that simply doesn’t exist in drier climates. We clean and repair Lennox systems across Harris County and surrounding areas, from Katy subdivisions to Heights bungalows. Call (866) 347-2063 for upfront pricing and same-day scheduling.
Why Houston Residents Choose Us for Lennox Service
We’ve worked on Lennox equipment in Houston for over four decades. That means we’ve pulled collapsed flex duct out of 140°F attics in Pearland, scraped mold off A-coils in Clear Lake homes that haven’t had a cleaning since before Harvey, and traced airflow problems in Signature Series systems back to duct separations that the homeowner never knew existed.
Wade Kellerman, our owner, came up through Eastfield College’s HVAC program in Mesquite and spent the better part of thirty years doing residential duct work across Texas before building Bellows into what it is now. He still trains our technicians personally on Lennox-specific failure patterns. We don’t guess at what’s wrong with your system. We run a camera through every section of ductwork before we quote a price, and we show you what we found. No bait coupons, no price changes once we’re in your home. The number we give you on the phone is the number on the invoice.
We stock OEM Lennox parts for critical components - variable-speed motors, control boards, pressure switches - and we carry quality aftermarket filters for routine replacements. Our Lennox sales & service covers every model line currently installed in Houston service area homes, and most repairs are done the same day we arrive.
Common Lennox Air Duct Cleaning Problems We Solve in Houston
- Signature Series variable-speed blowers cycling on high limit. These systems are sensitive to static pressure changes. In Houston attics that hit 150°F regularly, flex duct liner degrades and sections collapse internally. The blower can’t move air properly, the system overheats, and the homeowner gets a service call for “AC not cooling” when the real problem is duct separation. Our camera inspection finds it every time.
- Merit Series freeze-ups from collapsed return ducts. The 1990s slab homes in Katy and Pearland are full of these. Original flex duct in the attic collapses under decades of heat exposure, starving the evaporator coil of return airflow. The coil ices over, the compressor strains, and the homeowner pays for refrigerant charges that don’t fix the root cause. We repair or replace the duct, then clean the coil properly.
- Elite Series blower wheels caked with flood silt. In Montrose and Heights bungalows with crawl-space duct runs, Harvey left behind fine sediment that doesn’t wash out with standard cleaning. The blower wheel becomes unbalanced, the variable-speed drive misreads the vibration as demand fluctuation, and the system short-cycles. We disassemble and hand-clean the wheel, then verify balance before we leave.
- XP25 heat pump coil mold in high-humidity conditions. Pearland’s humidity, combined with leaky ductwork, means mold on the A-coil within two years in some homes. The XP25’s efficiency drops, indoor air quality suffers, and the homeowner smells it before they see it. Our cleaning and sealing combo restores both.
- Post-Harvey flex duct that looks intact from the register. In Meyerland and along Brays Bayou, we regularly find duct that passed visual inspection but has internal collapse or mold from 2017 flood saturation. Homeowners who only had drywall remediated often have no idea. The camera tells the truth.
Lennox Service in Houston: What Local Conditions Mean for Your Equipment
Here’s the single most important difference for Houston Lennox owners: unlike Dallas or San Antonio, Houston logs over 2,800 cooling degree days annually. Your system runs nearly year-round. That means duct dirt, mold, and microbial growth accumulate roughly three times faster than the national average. The 3-5 year cleaning schedule you might read about online is written for climates where the AC shuts off in October. In Houston, we recommend annual cleaning for Lennox systems, especially if you have flex duct in the attic or a crawl-space return.
The Gulf humidity is the other factor. At 75-90% RH regularly, condensation inside poorly insulated flex duct is common. We’ve opened attics in Clear Lake where the duct exterior was wet to the touch while the system was running. That standing moisture doesn’t just grow mold - it degrades the duct liner adhesive, accelerating the collapse problems we see in Signature and Merit systems. And in neighborhoods like the Heights, where Harvey sent bayou water through crawl spaces, we’re still finding ductwork that was never properly addressed after 2017. One homeowner on White Oak Drive thought her “musty AC smell” was normal for an old house. It was silt-packed flex duct, seven years after the flood.
Lennox Models & Products We Service in Houston
We clean and repair all Lennox residential lines commonly found in Houston homes:
- Lennox Signature Series - including variable-speed and communicating systems with complex duct static requirements
- Lennox Elite Series - two-stage and single-stage units, including high-wall configurations in older homes
- Lennox Merit Series - the workhorse line in 1990s suburban builds throughout Katy and Pearland
- Lennox XP25 heat pumps - high-efficiency units sensitive to coil condition and airflow balance
For critical repairs, we use OEM Lennox parts to preserve system logic and warranty compatibility where it matters. For routine filter replacements and bulk consumables, we recommend quality aftermarket options that meet or exceed OEM specs. We stock the most common Lennox motors, boards, and pressure switches locally for fast Houston turnaround. If your unit has a cracked heat exchanger or terminal coil leak and replacement makes more sense than repair, we’ll tell you straight and quote it honestly.
Lennox Service Pricing in Houston
Full Lennox air duct cleaning in Houston typically ranges from $350-$550 for a standard single-system home, $550-$850 for larger homes or systems with significant contamination, and $150-$300 for evaporator coil cleaning as an add-on. Flex duct repair or partial replacement runs $200-$500 per section depending on attic accessibility and material length.
What drives cost: system size, duct accessibility (crawl space vs. attic), contamination level, and whether we find post-Harvey damage that requires repair beyond cleaning. Every estimate starts with a camera inspection - we show you what we found before we quote. No bait pricing, no changes at the door. Call (866) 347-2063 for an exact quote; estimates are free.
Serving Houston, TX - Our Local Coverage Area
We’re based in the Houston 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 Houston
Yes. Our full system cleaning covers the evaporator coil, blower assembly, and all accessible ductwork. The coil is where Houston humidity causes the most trouble - mold and biofilm buildup on the A-coil restricts airflow and reduces efficiency. We clean it as standard, not as an upsell. Call (866) 347-2063 to schedule; estimates are free.
Sometimes, but not always. The Signature Series variable-speed blower monitors static pressure, and that light often indicates restricted airflow from collapsed or separated ductwork rather than a dirty filter. We run a camera inspection to determine whether the problem is duct obstruction or a failing pressure switch. If it’s duct-related, cleaning and repair resolves it. Call (866) 347-2063 and we’ll diagnose it properly.
If your home is in Meyerland, the Heights, Montrose, or any area that took floodwater in 2017 and you haven’t had a camera inspection since, there’s a reasonable chance. Signs include persistent musty odors, uneven room temperatures, or visible rust on registers. We find collapsed or mold-contaminated flex duct in post-Harvey homes regularly - often in homeowners who had no idea. The only way to know is to look. Call (866) 347-2063 for a free inspection.
In most cases, yes. We repair or replace individual duct sections from the attic or crawl space side without touching the air handler. For localized flex duct collapse or flood damage, partial replacement is usually the right approach. We only recommend full system replacement when the air handler itself is compromised or the ductwork is too deteriorated to patch economically.
Near-constant runtime is normal for Houston summers - 2,800+ cooling degree days means your system works harder here than almost anywhere in the country. However, if it never cycles off even on mild days, or if indoor humidity stays above 60%, you likely still have duct leakage or an undersized return. Cleaning helps; sealing the ducts often helps more. We check both. Call (866) 347-2063 for an evaluation.
Service Areas Near Houston
We serve Houston and surrounding communities including Lennox service in Dallas, Lennox service in Austin, San Antonio, Fort Worth, and El Paso. Whether you’re in a Katy subdivision, a Heights bungalow, or a post-Harvey rebuild in Meyerland, we travel to you with stocked trucks and upfront pricing.
Book Your Lennox Service in Houston Today
Call (866) 347-2063 to speak with a live person - 24 hours a day, no voicemail, no app. We’ll schedule your free estimate, run the camera, and show you exactly what your Lennox system needs before we start. Same-day appointments available. We stand behind it - and around here, that has meant something for a long time.
Written by Wade Kellerman, Owner at Bellows Air Duct & Vent Co. of Texas, serving Houston since 1984.