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 Dimas, CA
We provide independent Lennox air duct cleaning service across San Dimas, CA. What makes our work different here is simple: we know where Lennox systems fail after decades of Santa Ana winds and San Gabriel Mountain dust, and we inspect for those exact weak points before we clean. Clay Gibbons, our owner, trained at Chaffey College and has worked on Inland Empire ductwork for over a decade. Call (844) 789-0415 for a free estimate.
Why San Dimas Residents Choose Us for Lennox Service
Most duct cleaning crews bring a vacuum and a camera. We bring Rotobrush contact-cleaning systems and Nikro negative-air equipment, the same gear restoration contractors use. When a Lennox air handler sits in a San Dimas attic, the slide-in coil cabinet design creates specific gaps that let ash and grit bypass filtration. We know to check those transitions because we’ve seen them across hundreds of homes in this valley.
Clay grew up in College Park in Chino and has spent his adult life working on HVAC systems and ductwork across the region. He started Duct Cleaning Chino in 2018 after his daughter’s allergy issues pushed him to look harder at what moves through residential ductwork. That’s the lens we bring to every Lennox system we service in San Dimas. We clean it and, if needed, fix it.
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 Dimas
- Slide-in evaporator coil bypass. Lennox air handlers use a slide-in coil design that often develops gaps at the coil-to-plenum transition. In San Dimas foothill homes, fine wildfire ash and chaparral dust slip through those gaps, coat the blower wheel, and circulate through supply runs. We seal and clean these transitions rather than just vacuuming the visible ductwork.
- Collapsed or disconnected flex-duct runs. Older Lennox flex runs in 1960s – 1980s tract homes frequently pull loose at the collar after years of extreme attic heat cycling. A disconnected run in a San Dimas attic pulls grit and insulation into the system. Our video inspection catches this before we clean, so we can repair the run and clean the result.
- Debris buildup on Lennox Merit Series blower wheels. PSC blower motors in Merit Series furnaces are prone to fine particle accumulation on the wheel. After a Santa Ana wind event, we commonly find ash packed onto blower fins, reducing airflow and pushing dust into living spaces. We remove and clean the wheel as part of a full system cleaning.
- Failing mastic at rigid metal trunk joints. Lennox metal duct trunks installed in the 1970s and 80s rely on internal mastic that breaks down over four or five decades. In San Dimas, those failed joints let conditioned air and fine dust leak into wall cavities, then re-enter the return. Cleaning without sealing those joints doesn’t fix the problem.
- Foothill grit accumulation after fire season. Homes near Bonelli Park and the Puddingstone Reservoir area sit in the direct path of wind-driven ash from the San Gabriels. Lenox systems with aging filters and worn coil seals pull that ash deep into supply runs, where it sticks to damp coil surfaces and hardens. We address this with negative-air cleaning so the debris doesn’t simply resettle.
Lennox Service in San Dimas: What Local Conditions Mean for Your Equipment
San Dimas sits at the base of the San Gabriel Mountains, and every fall the Santa Anas push fine desert dust and wildfire ash straight into residential neighborhoods. For Lennox owners along the foothill corridors near Bonelli Park and the Puddingstone Reservoir area, this isn’t a seasonal nuisance. It’s a recurring maintenance load. The hot, dry summers compound it. HVAC systems here run for months straight, pulling in dust from chaparral and the nearby equestrian properties, which adds a heavier particulate load than most suburban systems see. What we find in San Dimas specifically is that Lennox ductwork in older tract homes often looks fine from the register but is packed with fine ash at the trunk level, especially after fire season. That’s why we recommend a video inspection for any Lennox system here that hasn’t been cleaned in three or more years. You see what’s in your ducts before we start, and you know if sealing is needed. Clean ducts don’t fix everything, but dirty ones make most things worse.
Lennox Models & Products We Service in San Dimas
We service the full range of Lennox residential equipment that San Dimas homeowners have in their attics and closets. That includes Lennox Merit Series furnaces and air handlers, Lennox Elite Series air conditioners and heat pumps, and Dave Lennox Signature Collection systems. We also work with Lennox Healthy Climate indoor air quality products, and we can recommend Honeywell and Aprilaire filtration upgrades when a cleaning reveals that the existing filter setup isn’t doing enough given the particulate load in this valley. We choose quality parts that fit each system. For critical components like blower wheels and coil panels, we use genuine Lennox OEM parts. For flex duct and mastic repairs, where the OEM part offers no performance advantage, we use high-quality aftermarket materials. That’s the honest approach, and it keeps your cost reasonable.
See the difference
Before
After
Before
After
Before
AfterLennox Service Pricing in San Dimas
Duct cleaning pricing depends on the size of the system and what we find during inspection. For a standard San Dimas single-family home with one air handler and typical runs, full system cleaning typically runs from $400 to $800. Larger homes with multiple returns or significant flex-duct repairs can push higher, while straightforward cleanings with no damage come in lower. The written estimate sets the final price before we start. A free estimate includes a basic inspection and a walkthrough of what we’d do. We don’t charge per vent, and we don’t hit you with a low teaser price that turns into something else once we’re on site. One flat price per system, agreed before work begins. Call (844) 789-0415 for an exact quote. Estimates are free.
Serving San Dimas, CA – Our Local Coverage Area
We serve San Dimas and nearby communities. Use the map below to see the area we cover. If you’re nearby, we can almost certainly help.
FAQs – Lennox Air Duct Cleaning in San Dimas
Yes, attic installations change how we approach the job. San Dimas attics get extremely hot in summer, which accelerates mastic breakdown and flex duct sag. We inspect the coil-to-plenum transition and all attic runs before cleaning, because that’s where bypass and disconnection problems concentrate. A garage or closet install doesn’t have the same failure profile. Call (844) 789-0415 if you’d like us to take a look before a full cleaning.
Santa Ana winds push fine desert dust and wildfire ash into the return air stream of any home, but Lennox systems with aging seals or PSC blowers pull more of it through. The fine particles that bypass filters settle on blower wheels and inside supply runs. After a heavy wind season, a cleaning makes a measurable difference in airflow and dust levels. We see it every fall and winter in San Dimas.
Yes, and we’d recommend a video inspection first. Original 1960s – 1980s Lennox rigid metal trunks often have failed internal mastic at the joints. If we clean without sealing, the system will keep pulling fine dust from wall cavities and re-depositing it. We do full system cleaning and sealing in one visit, which is the only approach that actually solves the problem for older tract homes here. Call (844) 789-0415 to schedule a free estimate.
The slide-in coil design on Lennox air handlers creates a transition point that frequently develops gaps. Those gaps allow attic dust and ash to bypass the filter and coat the blower wheel and supply runs. If a crew just cleans the visible ducts without checking the coil transition, you’ll be back to square one within months. We inspect and seal that transition as part of every Lennox cleaning in San Dimas.
We focus on residential and light commercial ductwork, including Lennox rooftop units on smaller commercial properties in San Dimas. If you manage a retail or office building with rooftop Lennox equipment, we can assess the system and provide a full cleaning or targeted repair. Call (844) 789-0415 and ask for Clay. We’ll tell you straight what’s needed.
Service Areas Near San Dimas
We serve San Dimas and the surrounding foothill communities, including Glendora and La Verne to the northwest, Covina to the southwest, and Diamond Bar to the south. We also work throughout Chino and Corona for clients with larger systems or properties in the equestrian areas.
Book Your Lennox Service in San Dimas Today
If your Lennox system is in a San Dimas home and hasn’t been seen by a duct specialist, call (844) 789-0415. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday. The estimate is free.
Written by Clay Gibbons, Owner at Duct Cleaning Chino, serving San Dimas since 2018.