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 Willow Glen, CA
We clean and repair Lennox duct systems throughout Willow Glen, and the work here looks different than it does in newer parts of San Jose, including West San Jose. Most Willow Glen Lennox systems are AC retrofits bolted onto 1920s – 1950s bungalows, which means decades-old return runs, hand-cut plenum transitions, and crawl-space ductwork that picks up rodent activity and orchard dust. We’re an independent Lennox service provider, not manufacturer-authorized, so we tell you straight what needs cleaning, what needs repair, and what doesn’t need touching. Call (855) 550-3778 for a free estimate.
Why Willow Glen Residents Choose Us for Lennox Service
Heritage Duct Cleaning is led by Noel Carvalho, who trained in HVAC fundamentals at Mission College and has spent eighteen years working on South Bay homes, many of them right here in Willow Glen. We run Rotobrush and Nikro commercial-grade cleaning equipment, the same systems restoration contractors use, not the portable shop-vac rigs you see advertised on coupon mailers. Combined with Abatement Technologies gear in our toolkit, that means we can handle contamination issues other duct cleaners walk away from.
For Lennox systems specifically, we understand the full air pathway: the return run, the filter cabinet, the blower assembly, the coil, and the supply plenum. We work on Honeywell and Aprilaire filtration units mounted in return plenums alongside Lennox equipment, so diagnostics account for the entire system rather than just the ducts in isolation. If you’re in Willow Glen with a Lennox furnace or AC, you can schedule Lennox sales & service support with a team that’s built for the job, not borrowed from a hardware store.
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 Willow Glen
- Chewed flex return duct under pier-and-beam homes. Willow Glen’s older bungalows sit over damp crawl spaces where rats and feral cats nest. On Lennox systems, we routinely find flex return duct chewed open, with droppings packed against the cased coil. We replace the damaged sections with rodent-resistant insulated flex and seal the return boot so the system stops pulling crawl-space air.
- Leaky plenum transitions feeding AC retrofits. Lennox cased coils paired with older G-series furnaces often sit in plenums whose sheet-metal transitions were hand-cut and mastic-sealed decades ago. In Willow Glen pier-and-beam homes, those seams dry out and leak conditioned air into the crawl space instead of the house. We inspect and reseal these transitions during cleaning.
- Caked evaporator coils behind clean-looking filters. Lennox variable-speed communicating air handlers like the SL280 and EL296 pull higher static through undersized return runs common in 1920s – 1950s bungalows. That means dirt-clogged blower wheels and caked evaporator coils even when the filter looks fine. Coil cleaning is part of our standard Lennox duct service in Willow Glen.
- Bypass gaps at Lennox PureAir and Healthy Climate filter cabinets. These retrofit filter units are often installed with poorly sealed bypass gaps. Dry-season dust and pollen from valley orchards and Willow Glen street trees slip past the filter and straight onto the coil. We close those gaps during service.
- Debris pulled into the blower from unlined sheet-metal returns. Original furnace plenums feeding Lennox AC retrofits are frequently unlined sheet metal sitting in damp crawl spaces. Rodent debris at the return boot gets pulled straight into the blower wheel. We remove it, clean the wheel, and address the source at the boot.
Lennox Service in Willow Glen: What Local Conditions Mean for Your Equipment
Here’s what makes Willow Glen service area work different from Sunnyvale or Cupertino: Willow Glen is an old orchard town swallowed by San Jose, and its housing stock is predominantly 1920s – 1960s single-story bungalows, Craftsman and ranch homes on pier-and-beam foundations. The original gravity-furnace ductwork in these homes was often unlined sheet metal or early flex, expanded piecemeal over decades, and now feeds whole-house Lennox AC retrofits. That means when we clean a Lennox system in Willow Glen, we’re not servicing a modern sealed duct design. We’re negotiating decades-old, labor-added duct runs in tight crawl spaces under historic homes. The climate compounds it: hot, dry San Jose summers push heavy AC use while dry-season dust and pollen accumulate in returns, and mild winters let furnaces sit idle for months so debris and rodent activity build up undisturbed. If you own a Lennox system in Willow Glen, your ductwork carries more load and more contamination than the same equipment would in a slab-on-grade neighborhood. We don’t clean what doesn’t need it, and we don’t skip what does.
Lennox Models & Products We Service in Willow Glen
We service the full range of Lennox residential equipment you’ll find in Willow Glen homes: G-series gas furnaces (G26, G40, G50, G60), Dave Lennox Signature Collection variable-speed and communicating systems like the SL280 and EL296, and XC/ML series Merit and Elite air conditioners matched to Lennox cased coils. We also work on Lennox PureAir and Healthy Climate filtration units mounted in return plenums. For parts, we lean on OEM coils, blower assemblies, and control boards because communicating and variable-speed Lennox systems are sensitive to off-brand electronics. For commodity hardware like flex duct, mastic, and insulation, we use quality aftermarket components where they perform just as well. Duct cleaning, evaporator coil cleaning, and flex duct repair are core parts of every Lennox repair in Campbell and Willow Glen service call we run.
See the difference
Before
After
Before
After
Before
AfterLennox Service Pricing in Willow Glen
Whole-home air duct cleaning in Willow Glen typically runs $450 – $950 depending on home size, number of returns, and how much contamination we’re dealing with. Crawl-space access under pier-and-beam bungalows adds labor when ducts are difficult to reach. Flex duct repair or return boot replacement is quoted separately after inspection. The free estimate includes a visual check of your Lennox plenum, coil, filter cabinet, and accessible duct runs so you know the total before any work starts. We use a flat price per system, agreed before work begins. For an exact quote on our Air Duct Cleaning in Willow Glen for your Lennox system, call (855) 550-3778.
Serving Willow Glen, CA – Our Local Coverage Area
We’re based in the Willow Glen 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 Willow Glen
Yes. Lennox variable-speed and communicating air handlers like the SL280 and EL296 use sensitive control boards and blower assemblies that don’t tolerate off-brand parts or careless handling. We isolate power to the air handler, protect the control board during cleaning, and only use OEM electronics if a replacement is needed. Our Willow Glen techs are trained on these systems specifically.
In Willow Glen, this almost always traces back to bypass gaps around a retrofit Lennox PureAir or Healthy Climate filter cabinet, or leaks in the return duct pulling crawl-space air into the system. We inspect the filter cabinet seal and the return run to find the leak path, then clean the coil and reseal so orchard dust and pollen stop bypassing the filter. Call (855) 550-3778 if your coil keeps caking up.
Yes, we do this regularly in Willow Glen. Pier-and-beam foundations mean the furnace and duct runs are often under the floor, accessible through a crawl-space entry. Our techs access the system, inspect the return boot and flex runs for rodent damage, and clean from the furnace outward. We’ll also flag any chewed flex or unsealed plenum connections we find.
Usually. A musty odor from Lennox returns in Willow Glen typically means damp crawl-space air is being pulled into the system through leaking return ducts, or there’s debris and droppings inside the return run. Cleaning the ductwork and sealing the return boot solves the source. If the smell persists after cleaning, we’ll inspect for a deeper issue like a standing water source in the crawl space.
It depends on the condition of the plenum and how much of the duct run is damaged. On a ranch home off Lincoln Ave with a Lennox G50 feeding a retrofit AC, the homeowner’s allergies spiked every summer. We dropped into the pier-and-beam crawl and found the return flex chewed open by rats with droppings packed against the cased coil. We pulled and bagged the contaminated flex, replaced it with rodent-resistant insulated duct, cleaned and treated the coil and blower, then sealed the return boot with mastic. Airflow came back and the crawl-space air stopped entering the house. We’ll price the repair against a replacement honestly rather than pushing an overhaul a sound system doesn’t need. Call (855) 550-3778 for an assessment.
Service Areas Near Willow Glen
Beyond Willow Glen, we run Lennox duct cleaning calls across the South Bay, including Saratoga, Santa Clara, Sunnyvale, Cupertino, and Milpitas. If you’re within a short drive of Willow Glen, give us a call and we’ll schedule your Lennox system inspection.
Book Your Lennox Service in Willow Glen Today
Call (855) 550-3778 for a free estimate on Lennox air duct cleaning in Willow Glen. We inspect, we quote a flat price per system, and we walk you through exactly what we found before any work begins. Serving Willow Glen, South San Jose, and the surrounding South Bay since 2007.
Written by Noel Carvalho, Owner at Heritage Duct Cleaning, serving Willow Glen since 2015.