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 Jose, CA | Kestrel Air Duct San Jose
Air Duct Cleaning - San Jose for Lennox systems usually runs between $450 and $900 for a whole-home system, and the job takes four to six hours. We’re Kestrel Air Duct San Jose, an independent Lennox service provider, not a factory-authorized shop. What separates our work here is simple: we know what 60-year-old galvanized ductwork in Willow Glen does differently from a flex-duct system in a new build off Highway 87. Call (669) 220-7869 for a written quote before anyone touches a vent.
We service every Lennox line installed across San Jose, from the Merit Series in mid-century ranches to the Dave Lennox Signature Collection in newer homes near Santana Row. Our techs carry Rotobrush agitation tools, Nikro negative-pressure units, and Abatement Technologies HEPA filtration. We also stock OEM Lennox parts for repairs where they matter most. Lennox sales & service has been our focus for years, and San Jose’s housing stock keeps that work interesting.
Why San Jose Residents Choose Us for Lennox Service
Dale Whitmore, our owner, grew up in the San Fernando Valley and learned HVAC fundamentals at Los Angeles Trade-Technical College before spending nearly two decades focused on duct cleaning and indoor air quality. He’s methodical about negative-air extraction, which means a high-powered vacuum seals to your duct system and pulls debris out instead of pushing it around the house. Dale and our crew have cleaned Lennox systems everywhere from older bungalows in Willow Glen to newer builds near Santana Row.
We answer the phone with a live person, 24/7. You get a written price before work starts, a defined arrival window, and the 365-Day Done Right Promise in writing on every job. If something isn’t right within a year, we return and make it right at no charge. That’s the Kingswell Guarantee, and it’s been our standard since 2004. No door-step revisions, no vague satisfaction language. Just what we said we’d do, on paper.
Our techs are background-checked and uniformed. They follow the Kingswell Way: say the price, show up in the window we gave, leave the place cleaner, put the guarantee in writing, come back if it fails. That’s the code on every San Jose visit, whether we’re in a 1950s ranch with original ducts or a two-year-old smart home with zoned airflow.
Styles & brands we work with
Common Lennox Air Duct Cleaning Problems We Solve in San Jose
- Blower wheel dust buildup on variable-speed air handlers. San Jose’s long cooling season means windows stay shut from May through October, and pet dander plus recirculated dust accumulates fast on Lennox variable-speed blower wheels. We pull the blower assembly, clean each wheel fin, and rebalance before reinstalling.
- Corroded galvanized duct seams in 1950s-60s ranch homes. A Lennox furnace installed in 1962 is only as good as the ducts feeding it. Original galvanized seams rust through, especially in crawlspaces under Willow Glen and Cambrian homes. We find the leaks, seal them with mastic, and stop the pressure drop.
- Flex duct degradation in attic heat. Almaden Valley homes built in the 1970s often have flexible ductwork that bakes in 140°F attic temperatures. The inner liner cracks, kinks, or collapses, starving a Lennox system of return air. We replace failed sections with high-temp flex and reseal every joint.
- Evaporator coil fouling from wildfire smoke. Fire season in the hills east of San Jose pushes fine particulate into homes. Lennox evaporator coils trap that soot, and cooling efficiency drops. We clean coils with the proper detergents and measure the temperature drop before and after.
- Construction dust infiltration in new developments. San Jose’s tech boom never really slowed down. Newer Lennox systems near North San Jose and Berryessa pull drywall dust and debris into ducts during construction or renovation. A full negative-air cleaning removes what standard filters missed.
Lennox Service in San Jose: What Local Conditions Mean for Your Equipment
Here’s something most companies won’t tell you, because they don’t work here every week. San Jose’s 1950s tract homes, especially in neighborhoods like Willow Glen, often have original Lennox-era ductwork wrapped in asbestos-containing insulation. When we clean or repair those systems, we follow strict containment protocols: negative-pressure containment, HEPA-filtered air scrubbers, and sealed work zones. That level of care is routine for us. In newer South Bay cities like Milpitas, where the housing stock is mostly post-1980, techs encounter asbestos wrap far less often. If you own a mid-century ranch in San Jose with original ducts, hire a team that knows what’s inside those walls before they start cutting. We do.
The same applies to wildfire smoke. San Jose sits close enough to the Diablo Range and Santa Cruz Mountains that smoke events push fine particulate through Lennox filters and straight onto evaporator coils. A system that cools fine in March struggles by August. That’s not a refrigerant problem most of the time. It’s a fouled coil and clogged ducts.
Lennox Models & Products We Service in San Jose
We clean and repair ductwork connected to every Lennox product line: the Merit Series, Elite Series, Dave Lennox Signature Collection, and Healthy Climate filtration add-ons. When a repair demands factory integrity, we use OEM Lennox parts. For duct accessories like grilles, flex sections, sealants, and registers, we’ll often recommend a cost-effective aftermarket option that matches or exceeds the original spec. You get the honest answer either way, based on duct age and your long-term comfort.
We keep common Lennox-compatible parts stocked locally for fast San Jose turnaround, including blower motor capacitors, limit switches, flex duct, mastic, and filter media. If we need something specific, our supplier network gets it to the job site quickly.
See the difference
Before
After
Before
After
Before
AfterLennox Service Pricing in San Jose
Whole-home Lennox air duct cleaning in San Jose typically runs $450 to $900, depending on square footage, number of returns, accessibility, and whether we’re also sealing leaks. Duct sealing alone adds $200 to $500. Evaporator coil cleaning runs $150 to $350 when done as part of a full service. Video inspection is included with every full cleaning, so you see exactly what we found and what we fixed.
What changes the price? Older ranch homes with narrow crawlspaces and asbestos-wrapped ducts take longer because of containment setup. Newer two-story builds with zoned dampers add complexity. A free estimate from us includes a written line-item price before any work begins. That number doesn’t change at the door. Call (669) 220-7869 and we’ll walk through what your system needs.
Serving San Jose, CA - Our Local Coverage Area
We’re based in the San Jose 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 Jose
Every three to five years for most San Jose homes, but every two to three if you live near the foothills where wildfire smoke hits harder, or if you’ve done recent remodeling. Homes with pets or residents with allergies skew toward the shorter end. If you haven’t had ducts cleaned in over a decade, schedule a video inspection first. Call (669) 220-7869 and we’ll tell you honestly whether cleaning is worth it right now.
Yes, with proper containment. We never cut or abrade asbestos-containing wrap. When we encounter it in 1950s-era San Jose ranches, we seal the work area, run HEPA air scrubbers, and clean the interior duct surfaces without disturbing the exterior insulation. If the wrap is damaged or deteriorating, we’ll recommend a qualified asbestos contractor before we proceed. Safety comes first, always.
In Almaden Valley, the most common cause is collapsed or kinked flex duct in the attic. Those homes were built in the 1970s, and original flex sections degrade in decades of attic heat. Video inspection shows us exactly where the restriction is. We replace the failed section with high-temp flex, reseal the joints with mastic, and airflow returns. Call (669) 220-7869 for a diagnosis.
Yes, measurably. A fouled coil insulates the refrigerant from the air passing over it, so the system runs longer and cools less. After cleaning, we typically see a 3°F to 5°F drop in supply air temperature. In San Jose’s dry summer heat, that’s the difference between a system that keeps up and one that runs all afternoon. We include coil cleaning with every full duct service.
Duct cleaning removes debris from inside the ducts. Duct sealing closes leaks at seams, joints, and connections. If your system has both dirty ducts and leaking seams, clean first, then seal. Cleaning lets us see the leaks clearly, and sealing before cleaning would trap contaminants behind the mastic. Most 1950s and 1960s San Jose ranches need both. We’ll show you the video evidence before recommending anything. Call (669) 220-7869 for a written quote.
Service Areas Near San Jose
We serve San Jose and the surrounding South Bay communities. San Jose service area coverage includes all neighborhoods from Willow Glen to Almaden Valley, plus nearby cities. If you’re in Lennox service in Santa Clara, Sunnyvale, Milpitas, or Lennox service in Fremont, we make the drive. Palo Alto and the West Valley are also in range.
Book Your Lennox Service in San Jose Today
We answer the phone with a live person, any hour. Tell us what your Lennox system is doing, and we’ll give you a straight answer and a written price before any work begins. Call (669) 220-7869 for a free estimate. Clean ducts don’t need a sales pitch, the airflow speaks for itself.
Written by Dale Whitmore, Owner at Kestrel Air Duct San Jose, serving San Jose since 2004.