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.
Lennox Air Duct Cleaning in Spring, TX | CleanRun Air Duct Cleaning Spring
Independent Air Duct Cleaning in Spring for Lennox systems typically runs $380-$680 for a complete system, depending on whether your ductwork needs repair or full replacement of delaminated flex runs. We serve Lennox owners across Spring with documented photo records and written prices before any work starts. Call (346) 423-3631 for a free estimate.
We’re not a Lennox-authorized dealer. We’re an independent shop that’s been cleaning and servicing Lennox systems across Spring for over a decade, from the oldest Merit series in Gleannloch Farms to newer Dave Lennox Signature units. We also offer our Dryer Vent Cleaning in Spring for complete home safety. That independence matters. We’re not bound by warranty-network protocols that sometimes push replacement over repair when a targeted fix would serve the homeowner better. We document what we find, quote the work in writing, and let the camera do the talking.
Why Spring Residents Choose Us for Lennox Service
Tomas Reyes, our owner, grew up in the Bronx and learned the trade at Bronx Community College before spending the better part of two decades working ductwork systems across Texas. He and our crew have logged serious hours in Spring - including plenty of calls out near Gleannloch Farms, where the older construction and clay-heavy soil tend to push a surprising amount of debris into return air plenums over time. Tomas pulls camera footage before he quotes anything. The camera doesn’t negotiate. He’d rather show a homeowner what’s actually in the duct than describe it.
That approach is why we publish our license number on every page, not buried in a footer. It’s why our technicians are background-checked and uniformed under Haven Standard Clause 3: Verified Crews. And it’s why every job ends with a Documented Photo Record of every duct run - before and after - delivered as a standard deliverable, not an upsell. We’ve held that practice since our first job in 2013.
Our equipment roster includes Rotobrush, Nikro, Abatement Technologies, Honeywell, Aprilaire, and Guardsman - brands you can look up independently before you agree to any price. We use OEM-equivalent Lennox flex duct, mastic, and foil tape for repairs, but for aging systems we’ll often recommend quality aftermarket R-8 insulated flex from ATCO or Flexmaster that outperforms original R-4 duct in Spring’s attic heat. The written price comes first, every time, under Haven Standard Clause 1. No exceptions.
Common Lennox Air Duct Cleaning Problems We Solve in Spring

- Delaminated flex duct liners in Merit Series systems. The 140-160°F attic temperatures in Spring destroy the inner mylar-and-fiberglass liner on original 1990s Lennox flex duct installs. We’ve pulled sections near Champions where the liner had turned to loose fiberglass dust. Homeowners often blame pollen or pet dander for their respiratory issues when it’s actually their ductwork shedding into the airstream.
- Unsealed CBX27UH cabinet seams pulling in attic dust. Lennox air handlers with the older CBX27UH cabinet are notorious for drawing return air across unsealed seams. In Spring’s dust-heavy attic environment, that means insulation particles and clay-soil grit get pulled straight into the blower wheel and evaporator coil. We seal those cabinets with proper mastic and foil tape, not the foil tape alone that fails after a few summers.
- Microbial growth on evaporator coils from Gulf Coast humidity. Harris County’s 70%+ relative humidity and eight-to-ten-month cooling season create conditions that drier Texas metros simply don’t face. When Lennox condensate pans don’t drain fully - often because the coil has tilted after years of attic settling - microbial growth follows. We clean the coil, verify drainage, and document the before-and-after with photos.
- Degraded plenum seals from extreme heat cycling. Lennox’s proprietary mastic and foil-tape seals on plenum connections break down faster in Spring’s attic conditions than the manufacturer originally designed for. Open leaks pull 140°F attic air into conditioned ductwork, forcing longer run times and worsening moisture problems. We reseal with high-temp mastic rated for Harris County attics.
- Sagging flex duct at support points trapping debris. Decades of heat cycling weaken the wire helix in original Lennox flex runs, creating low spots where dust and moisture collect. Near Cypresswood Drive, we’ve found sagging sections with 2-3 inches of compacted debris that the homeowner had no idea existed until we showed them the camera footage.
Before
AfterLennox Service in Spring: What Local Conditions Mean for Your Equipment
Spring sits in Harris County’s hyper-humid Gulf Coast climate where essentially every home routes its ductwork through unconditioned attic spaces. The high clay-soil water table makes basements impossible here, so there’s no alternative. Those attics routinely hit 140-160°F in summer while your Lennox system pushes 72°F conditioned air through flex ducts. That temperature differential creates a condensation and mold dynamic that far exceeds what technicians encounter in drier Texas metros like Dallas or San Antonio, where some homes still have basements or deeper shade trees to moderate attic loads.
For Lennox owners specifically, this means your equipment works harder than the same unit would in a different climate. The constant expansion and contraction of flex duct liners, the accelerated breakdown of mastic seals, the tilted coils from attic structure settling - these aren’t design flaws in the Lennox equipment. They’re the predictable result of installing that equipment in an environment it was never fully optimized for. We account for that in our repair recommendations. Sometimes that means aftermarket R-8 flex that handles the heat better than original R-4. Sometimes it means addressing the root cause - a corroded coil, a tilted pan - rather than just cleaning the symptom.
Lennox Models & Products We Service in Spring

We work on the full Lennox residential lineup, including Merit Series (10ACX, 13ACX, ML14XP1), Elite Series (XC13, XC14, XC16, SL18XP1), Dave Lennox Signature Collection (XC21, XC25, SL28XCV), and Complete Comfort Series air handlers (CBX27UH, CBA27UHE). We stock OEM-equivalent Lennox flex duct, mastic, and foil tape for same-day repairs in Spring, plus R-8 aftermarket flex from ATCO and Flexmaster for upgrades that outperform original specifications in local conditions.
Our Lennox sales & service page covers our full brand capabilities. For Spring homeowners specifically, we keep common failure parts on the truck: CBX27UH cabinet gaskets, plenum collars, and high-temp mastic rated for Harris County attic conditions. No waiting on a parts run to The Woodlands.
Lennox Service Pricing in Spring
| Service | Typical Range in Spring |
|---|---|
| Standard air duct cleaning (whole system) | $380 - $550 |
| Duct cleaning + flex duct repair (partial replacement) | $480 - $680 |
| Evaporator coil cleaning | $280 - $420 |
| Duct sealing (mastic + foil tape, full system) | $320 - $520 |
| Complete flex duct replacement with R-8 upgrade | $1,800 - $3,200 |
What drives the cost: accessibility of attic runs, extent of delamination or sagging, whether the coil needs removal for cleaning, and how many plenum connections require resealing. Every estimate includes a full camera inspection, written scope, and written price before any work begins - Haven Standard Clause 1. No per-vent pricing, no teaser coupons that balloon once the truck arrives. We also offer a Free Second Opinion on any written estimate from another company. Bring their quote; we’ll put our number next to it in writing.
Call (346) 423-3631 for an exact quote - estimates are free, and we answer live 24/7.
Serving Spring, TX - Our Local Coverage Area

We’re based in the Spring 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 Spring
We can clean it if the inner liner is intact. We camera-inspect first. If the mylar-and-fiberglass liner has begun delaminating - common on 2000-era Merit systems in Spring after 20+ years of attic heat - cleaning alone will release more fiberglass into your air. We show you the camera footage and give you a repair-vs-replace recommendation in writing. Call (346) 423-3631 for a free inspection.
Yes. Harris County’s 70%+ relative humidity and eight-to-ten-month cooling season create conditions that drier inland Texas cities don’t match. Lennox coils are well-built, but any coil with slight drainage restriction or tilt from attic settling will grow microbial matter faster here than in Dallas or San Antonio. We clean the coil, verify pan drainage with a level, and document the results with photos.
The CBX27UH and similar cabinets have known seam leakage at the return air connection. In Spring’s dusty attic environment - clay soil, construction debris from decades of neighborhood turnover - that leakage pulls visible grit into your system. We seal those seams with mastic and foil tape, then pressure-test to verify the fix. The before-and-after photos show the difference.
We are an independent service provider, not Lennox-authorized. Manufacturer warranties typically require authorized dealer service for coverage. However, most duct cleaning and sealing work does not touch the components covered by equipment warranties (compressor, heat exchanger, etc.). We explain exactly what we’re touching before we start, and we document everything. If your system is still under Lennox equipment warranty, we can coordinate with your dealer for any warranty-sensitive components.
Every three to five years for typical households, but every two to three years if you have pets, allergies, or a system with original flex duct over 20 years old. Spring’s climate accelerates buildup - the near-constant AC operation and high humidity mean your system moves more air, more moist air, through the ductwork than comparable homes in drier climates. After Hurricane Harvey in 2017, many Spring homeowners found their lower-wall and ground-floor runs needed earlier attention due to moisture intrusion. Call (346) 423-3631 and we’ll camera-inspect to give you a specific timeline for your home.
Service Areas Near Spring

We serve Spring service area homeowners and surrounding communities including Lennox service in Humble, Lennox service in Aldine, The Woodlands, Atascocita, and Tomball. The same crew, same equipment roster, same written-price guarantee applies across all service areas.
Book Your Lennox Service in Spring Today
Call (346) 423-3631 to schedule your free estimate. We’ll camera-inspect your Lennox system, show you what’s actually in your ductwork, and deliver a written price before any work starts. Every job is backed by our 365-Day Done Right Promise and the full H.A.V.E.N. Standard. Live person answers the phone, 24/7.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning Spring, serving Spring since 2013.




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