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.
Why San Pedro Homeowners Choose Lennox Air Duct Cleaning
We provide independent Lennox air duct cleaning service, with our work centered on the duct and plenum problems these systems actually develop in a coastal marine environment: salt-air corrosion inside metal runs, flex duct slipping off plenum collars, and dust-caked coils starving variable-speed air handlers. We’re not affiliated with or authorized by Lennox, which means our recommendations serve the homeowner, not a dealer network. If you have a Lennox system in San Pedro and suspect the ducts were never properly cleaned or have been under-serviced for years, call (877) 573-0759 for a straight answer and a free estimate.
Ross Callender, our owner, knows San Pedro’s housing stock from the Barton Hill flats to the Miraleste hillsides. He started in the HVAC/R program at Los Angeles Harbor College in Wilmington and spent years working residential and light-commercial air systems across the South Bay before focusing on duct work specifically because, as he puts it, that’s where most homeowners were being underserved. The Lennox repair in Harbor City and throughout these South Bay homes deserves better than what the average low-bid duct cleaner delivers.
Why Trust Air Duct Cleaning San Pedro for Your Lennox Air Duct Cleaning?
Lennox builds tight, well-engineered forced-air systems, and their variable-speed air handlers like the CBA38MV demand clean, properly sealed ductwork to operate within spec. We run Rotobrush contact-vacuum brush systems and Nikro professional duct cleaning machines, the same equipment commercial and restoration contractors use, not a shop vac and a blower. Dislodged debris gets captured by Abatement Technologies HEPA and negative-air filtration, so the fine harbor grit and salt dust we pull out of your ducts doesn’t get redistributed through your living room.
Our familiarity with Honeywell and Aprilaire filtration and humidity equipment means we understand how your whole air-quality chain works together. If a Lennox coil is fouled because the return boot slipped or the plenum wasn’t sealed properly, we’ll find it, clean it, and fix the root cause. Ross grew up less than a mile from the waterfront, and his daughter’s allergies are honestly what pushed him to take indoor air quality this seriously. The equipment does the honest work. He just makes sure it gets to every inch of your system.
Styles & brands we work with
- Whole-home duct cleaning
- Dryer vent cleaning
- Camera inspection
- Sanitizing & deodorizing
Common Lennox Air Duct Cleaning Problems We Fix in San Pedro
- Flex runs slipping off plenum collars at Lennox transitions. We see this constantly on Lennox-supplied plenum connections in San Pedro, especially in older hillside homes where attic temperatures fluctuate with the marine layer. The flex duct tears or slips off its collar, and conditioned air dumps into the attic or garage instead of the rooms. You’re paying to cool the rafters.
- High static pressure starving Lennox variable-speed blowers. The CBA38MV air handler is a capable unit, but pair it with an undersized or restricted return-air path and the blower works against high static pressure. That causes premature motor wear and weak airflow at the registers. Cleaning the return duct and correcting the restriction drops static pressure and the system breathes again.
- Evaporator coils fouling with dust and lint. When the plenum or return boot isn’t sealed properly on Lennox cased coils, unfiltered air gets drawn across the coil surface. Dust, lint, and San Pedro’s fine port particulate cake onto the fins, blocking airflow and eventually causing coil icing. We clean the coil and repair the seal leak so the problem doesn’t return next season.
- Mastic and sealant cracking at supply plenums and boot connections. Salt air and coastal humidity accelerate the drying and cracking of mastic and sealant at Lennox supply plenum and boot connections. Once the seal fails, conditioned air leaks into the building cavities. Our duct sealing work re-establishes those connections with materials that hold up in marine air.
- Blower wheels packed with lint on Lennox air handlers. If the return ducting has never been fully cleaned, lint and debris accumulate on the blower wheel itself. That throws the wheel out of balance, causing rattling, and reduces CFM output. A packed blower wheel on an Elite or Signature Collection unit is one of the most common causes of “my system just doesn’t blow like it used to.”
Lennox Parts & Our Repair-vs-Replace Approach
We use OEM Lennox parts where fit and warranty-relevant interfaces matter: coil parts, blower assemblies, plenum collars. For flex duct, insulation, and mastic, we use quality aftermarket materials that meet or exceed OEM specification and hold up to San Pedro’s salt-air conditions. We don’t cut corners with parts that will fail in two years.
On the repair-vs-replace question, we’re direct. If a Lennox air handler or coil is failing, we’ll tell you plainly whether cleaning, sealing, and targeted repair gets you years more life or whether replacement is the honest call. We don’t push replacement for a duct-side problem that’s fixable. That’s the difference between working for the homeowner and working for a commission. Call (877) 573-0759 if you want an assessment you can trust.
Our Lennox Service Process – Step by Step
- 1
Diagnosis. We start with a video inspection of your Lennox duct runs, plenum, coil, and blower. On a recent San Pedro job with an Elite air handler, the homeowner complained of weak airflow and a musty smell. Our inspection showed the return trunk boot slipping off its collar, a flex run crushed against attic framing, and a dust-caked evaporator coil. Nothing about that was visible from the register.
- 2
Full system cleaning. Rotobrush contact-vacuum brush systems dislodge and simultaneously extract debris from duct walls while Abatement Technologies negative-air equipment captures what’s pulled loose. We clean the full system including return ducts, supply runs, coil, and blower wheel.
- 3
Duct sealing and targeted repair. We re-secure boots, seal plenums with mastic, replace crushed or torn flex sections, and correct any restriction we found during inspection. Problems found during cleaning get fixed in the same visit, not scheduled for a second trip.
- 4
Testing and verification. Static pressure is measured where applicable, airflow at registers is checked, and before-and-after inspection footage documents the work. You see what we did.
See the difference
Before
After
Before
After
Before
AfterLennox Products We Service & Install in San Pedro
Our Lennox service in Lomita and across San Pedro covers the full residential lineup. This includes Merit Series units like the ML14XC1 and ML13KC1, Elite Series systems like the EL16XC1 and EL296V, and Dave Lennox Signature Collection equipment including the XC21 and SL280. We also work with Lennox variable-speed air handlers such as the CBA38MV where clean, properly sealed ductwork is critical to performance. If you’re not sure which series you have, the data plate on the air handler or condenser will tell us, and that tells us what to look for on the duct side.
We Also Service These Brands
Lennox is a brand we respect and work on regularly, but we’re not single-brand dependent. The same full-system cleaning, duct sealing, and repair capability applies to Trane and Carrier equipment in San Pedro. The duct problems are often similar; the equipment details change. If you have a mixed-brand system, that’s fine. We can handle it all in one visit.
FAQs – Lennox Air Duct Cleaning Service in San Pedro
No. We are an independent Lennox service provider, not affiliated with or authorized by Lennox. That independence matters because our recommendations are based on what your ducts and air handler actually need, not what a dealer network incentivizes. We work on Lennox equipment because we know it well and respect the engineering, and because so many San Pedro homeowners have trusted Lennox in their homes for decades.
Yes, where it matters. We use OEM Lennox parts for fit and warranty-relevant interfaces like coil components, blower assemblies, and plenum collars. For flex duct, insulation, and mastic, we use quality aftermarket materials that meet or exceed OEM specification. No off-brand parts that will crack or fail in San Pedro’s salt-laden air.
For a typical single-family home in San Pedro, full system cleaning including return ducts, supply runs, coil, and blower takes most of a day, typically 4 to 7 hours depending on the size of the home and the condition of the ductwork. Homes with significant repair needs, like crushed flex runs or failed plenum seals, may take longer. We’ll give you a realistic time window before scheduling so you can plan around the work.
Yes. We stock OEM Lennox plenum collars, boot components, and coil-related parts locally for the common failure points we see in San Pedro, along with quality aftermarket flex duct and mastic. That local stock means most duct-side Lennox repairs are completed the same day as the cleaning rather than waiting on a parts shipment. Call (877) 573-0759 to describe what you’re seeing and we’ll tell you if we have the part on the shelf.
Proper duct cleaning that uses contact-vacuum equipment and negative-air containment, as ours does, does not void your Lennox manufacturer warranty. What voids warranties is damage caused by aggressive or improper methods, like the consumer-grade rotating brush attachments that scratch duct walls or the pressure-washing hack jobs that saturate insulation. We use Rotobrush and Nikro systems designed for the work, and we’re careful around coil fins, plenum connections, and blower assemblies.
Whole-system Lennox in Harbor Gateway South and San Pedro air duct cleaning typically runs $350 to $600 depending on home size, number of duct runs, and whether coil and blower cleaning are included. If duct sealing or repair work is needed, that’s quoted separately and agreed to before any work starts. One flat price per system, agreed before work begins, no per-vent pricing games. Call (877) 573-0759 for an exact quote; estimates are free.
Book Your Lennox Service in San Pedro, CA
If your Lennox system isn’t delivering the airflow it should, or you know the ducts haven’t been properly cleaned in years, call us at (877) 573-0759. Ross and the team will inspect what’s actually happening inside your ductwork and give you a straight answer. Free estimates, no pressure.
Written by Ross Callender, Owner at Air Duct Cleaning San Pedro, serving San Pedro since he started turning wrenches on South Bay air systems.