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 Bernardino, CA
If you own a Lennox system in San Bernardino, you’re dealing with something most duct cleaners never see: a mix of tan Mojave grit pushed in by Santa Ana winds and sticky, ozone-cooked film from the valley’s chronic inversion days. Lionheart Air Duct Cleaning is an independent Lennox service provider – not manufacturer-affiliated or authorized – and we clean, seal, and repair the ductwork connected to your Lennox equipment, from 1960s G-series furnaces on the west side to current Elite and Signature systems in east-end builds. We also handle Lennox repair in Muscoy for homeowners in that community. Call (855) 356-4382 for a free estimate.
Why San Bernardino Residents Choose Us for Lennox Service
Roland Cifuentes grew up in the Westside neighborhood of San Bernardino, not far from Cal State San Bernardino, and he’s spent the better part of three decades watching this city’s desert heat and wildfire smoke do a number on local ductwork. He picked up his HVAC fundamentals at San Bernardino Valley College before going full-time into duct cleaning, where the diagnostic side of the work – figuring out exactly what’s hiding inside a system before the truck rolls up – turned out to be more interesting than any other trade. That’s why we approach every Lennox system as a diagnostic job first.
We work on Lennox equipment every week. That means we know the airflow and static-pressure quirks of Lennox ducted split systems from the return plenum through the coil, and we bring that knowledge to every job in San Bernardino. We use OEM-spec filters, door gaskets, and blower components where fit matters, and quality aftermarket flex duct, mastic, and insulation where repair calls for it. We’re also part of the broader San Bernardino service area coverage Lionheart provides across the Inland Empire, so our trucks and equipment are staged for this exact climate.
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 Bernardino
- Santa Ana grit loading the blower wheel. After a wind event, tan Mojave grit pushes through loose return boots on older Lennox G-series and Merit furnaces and settles on the blower wheel. Airflow drops, the motor works harder, and the system stops moving air the way it should. We pull the blower, clean it properly, and seal the return path.
- Mid-century return plenums pulling unfiltered bypass air. Lennox horizontal and upflow air handlers in tight mid-century hallway closets pull air around undersized, unsealed sheet-metal ducts. The filter catches some of it; the coil gets the rest. We clean the return duct, blower, and coil, then seal the boots and seams so the filter actually does its job.
- Variable-speed Elite and Signature systems starved by sagging flex duct. In newer east-end and north-end San Bernardino attics, flex branches sag or crush in the heat. A variable-speed Lennox blower ramps against the restriction and the first symptom you’ll notice is a dust streak at the supply boot, not an error code. We find the crushed run, repair or replace it, and bring static pressure back into range.
- Sticky soot-and-exhaust film from winter inversions. San Bernardino’s winter temperature inversions trap vehicle exhaust and wood-smoke particulates in the valley. Inside Lennox duct runs, that becomes a gummy film that ordinary vacuuming won’t touch. It coats heat exchanger fins, insulates them, and cuts efficiency. Our Rotobrush and Nikro systems remove what a consumer-grade vacuum leaves behind.
- Dirty evaporator coils on short-cycling Lennox condensers. When grit and bypass air load the coil, the system short-cycles and humidity control goes with it. We clean the coil and blower together – doing one without the other just moves the problem around.
Lennox Service in San Bernardino: What Local Conditions Mean for Your Equipment
San Bernardino sits where the Mojave Desert meets the Inland Empire’s smog basin, so air duct cleaning here is less about dust and more about two distinct invasions: fine desert grit pulled in by wind-driven infiltration and sticky, ozone-cooked particulate that clings to duct walls during the city’s many “unhealthy” air days. After a Santa Ana wind event, we routinely find a visible layer of tan Mojave grit inside Lennox return-air plenums on the west and north sides – grit that coastal or mountain homes never see. We offer Lennox service in Colton for similar desert-grit issues affecting that area. That same grit coats the blower wheel and gets pushed into the evaporator coil on the next cooling cycle. On a 1962 tract home off Mount Vernon Avenue, we pulled the return plenum on a Lennox G40 furnace and found a half-inch band of tan grit sitting on top of the blower wheel and the coil face. We cleaned the return and supply runs, degreased the blower and coil, and sealed the loose return boot with mastic. The static pressure dropped enough that the homeowner felt airflow in the back bedroom for the first time in years. That’s the San Bernardino-specific problem: not dust, but grit, and not a dirty filter, but a sealed-system failure that lets grit bypass everything.
Lennox Models & Products We Service in San Bernardino
We work across the Lennox lines most common in San Bernardino housing. That includes the Merit Series (ML196 furnaces, ML14XC1 condensers) in 1970s tract homes, the Elite Series (EL296V, EL16XC1) in newer construction and replacements, and the Dave Lennox Signature Collection (SL280V, SL25KSLV) in higher-end east-side properties. We also see plenty of legacy G40, G50, and G60 furnaces from the 1960s and 1970s, particularly on the west and north sides. For parts, we’re pragmatic: OEM-spec filters, gaskets, and blower components where fit matters, quality aftermarket duct material and mastic where repair is the job. You can read more about our broader Lennox coverage under Lennox sales & service.
See the difference
Before
After
Before
After
Before
AfterLennox Service Pricing in San Bernardino
Duct cleaning in San Bernardino runs $450 to $950 for a typical Lennox split system, depending on the number of returns, the length of the runs, and whether the blower and coil need pulling. Blower wheel and evaporator coil cleaning adds $150 to $300. Duct sealing runs $350 to $700, depending on how many boots and seams we’re treating. Flex duct repair or replacement is quoted per job after we inspect what’s in the attic. We never quote a teaser per-vent price – that’s the bait-and-switch model this industry is known for. One flat price per system, agreed before work starts. Call (855) 356-4382 for an exact quote – estimates are free.
Serving San Bernardino, CA – Our Local Coverage Area
We’re based in the San Bernardino 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 San Bernardino
Yes, and it doesn’t fail where you’d think. The grit doesn’t pass through the filter – it bypasses it entirely through loose return boots and unsealed sheet-metal seams. On older Lennox G-series and Merit furnaces, the return plenum is the weak point. We seal those openings and the grit stops entering the blower. If you can’t see what’s in your ducts, you’re just guessing – and your lungs are paying for the experiment. Call (855) 356-4382 for a free inspection.
In San Bernardino, the usual cause is a blower wheel loaded with Mojave grit and a partially coated evaporator coil. The motor is fine. The airflow path is clogged. We clean both and measure static pressure before and after so you see the difference in the numbers, not just the feel. Call (855) 356-4382 to schedule an inspection.
Yes. That film is a combination of trapped vehicle exhaust, wood-smoke particulate, and ozone residue that deposits on duct walls during San Bernardino’s inversion season. Consumer-grade equipment won’t remove it. Our Rotobrush and Nikro systems with negative-air containment will. We also deploy Abatement Technologies negative-air equipment on jobs where the film is heavy and we need to contain what we dislodge. Call (855) 356-4382 for a quote.
That depends on condition. If the sheet metal is sound but the seams and boots leak, resealing with mastic and proper insulation is the right call and costs far less. If the ducts are collapsed, rusted through, or sized so badly they can’t move air, replacement makes more sense. We’ll tell you straight which one applies to your home. Call (855) 356-4382 for an honest assessment.
It needs unrestricted airflow on the return side and no crushed or sagging flex runs on the supply side. Variable-speed blowers ramp to fight static pressure, and in hot east-end attics, flex duct sags faster than most homeowners expect. We also provide Lennox service in Loma Linda for static-pressure and flex-duct issues in that area. We check the full duct path, not just the equipment, and repair what’s restricting airflow. Call (855) 356-4382 to book a static-pressure check.
Service Areas Near San Bernardino
We provide Lennox duct cleaning across San Bernardino and the neighboring Inland Empire cities, including Riverside, Fontana, Rialto, Moreno Valley, and Redlands. If you’re in the Riverside area, see our dedicated Lennox service in Riverside page. In Fontana, visit our Lennox service in Fontana page for local details.
Book Your Lennox Service in San Bernardino Today
We clean it, we repair it, we stand behind it. If your Lennox system is moving less air than it should – or you suspect the ducts are doing more harm than the filter is doing good – call (855) 356-4382 today. Roland and the Lionheart team will inspect your system, tell you what’s actually going on, and quote one flat price before any work begins.
Written by Roland Cifuentes, Owner & Lead Technician at Lionheart Air Duct Cleaning, serving San Bernardino and the Inland Empire.