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 North San Jose, CA
We provide our Lennox services, including air duct cleaning and repair across North San Jose’s 95164 ZIP, from the 1960s tract homes near Old Oakland Road to converted R&D spaces in the old industrial corridors. What makes our Lennox work here different is what we find inside: decades of original galvanized ductwork mixed with flex runs added during tech-era remodels, often pulling construction dust straight into your Lennox air handler. Call (866) 593-7291 for a straight assessment, not a scripted pitch. We’re a focused indoor-air shop, not a generalist handyman service, and we’ve been pulling North San Jose ductwork apart long enough to know what’s really going on inside it.
Why North San Jose Residents Choose Us for Lennox Service
We’ve serviced Lennox service in Milpitas and across North San Jose for years, from original 1970s Merit Series furnaces to modern variable-speed Elite air handlers, and we know their duct interfaces, coil designs, and control quirks inside out. Our independent shop stocks Lennox-specific parts and follows OEM service bulletins, so your system gets expert care from a team accountable only to you – not to a manufacturer’s territory map. Noel Brandt, our owner, grew up along the Murphy Avenue corridor in Sunnyvale and has spent the better part of two decades pulling ductwork apart and putting it back together right. His foundational HVAC training came out of Foothill College in Los Altos Hills, where the hands-on lab work taught him what residential systems actually look like inside, not just how they appear on an installation diagram. That experience matters when a North San Jose Lennox air handler is buried in a converted office space with three different generations of duct attached to 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 North San Jose
These are the failures we see repeatedly in North San Jose Lennox systems, tied directly to how homes and workspaces here were built and remodeled:
- Return duct leakage near the air handler on Lennox Merit Series furnaces. The return plenum joints on G61MPV and similar Merit units are notorious for opening up over time. In North San Jose, where kitchen additions and garage conversions constantly produce drywall dust, those leaky returns pull construction debris straight into the blower wheel and evaporator coil. We seal the joints, then clean what the leak dragged in.
- Pinhole leaks and disconnected joints in original galvanized steel supply trunks. Homes built in the 1960s and 1970s across North San Jose often still have their original galvanized supply ducts. Where Lennox air handlers were retrofit without proper transitions, the sheet-metal seams crack and the runs separate. We find these with a camera inspection, then seal and re-secure them before cleaning so the air you paid to condition actually reaches the room.
- Evaporator coils loaded with pollen and wildfire ash. North San Jose runs air conditioning hard from May to October. During September-November fire season, ash infiltration is common. Lennox evaporator coils sitting above a dirty return see restricted airflow and eventually freeze up. We clean the coil as part of duct service, not as a separate surprise charge.
- Collapsed or kinked flex duct from room additions tied into undersized Lennox supply plenums. North San Jose homeowners expanding square footage often connect new flex runs to original plenums that were sized for a much smaller house. The result is excess static pressure, uneven cooling, and flex that eventually kinks or collapses. We identify the restriction and repair or replace the flex so your Lennox blower isn’t fighting itself.
- Construction debris in returns after remodels. This is the North San Jose signature. Constant remodels and additions in the older tracts leave drywall dust, sawdust, and bits of old insulation in the return system. It settles in the blower housing and on the coil. We remove it with our Rotobrush rotary brush extraction and Nikro HEPA vacuum equipment, the same standard used on commercial and remediation-level projects.
Lennox Service in North San Jose: What Local Conditions Mean for Your Equipment
North San Jose’s 95164 ZIP has a mix of housing stock you won’t find anywhere else in the South Bay. The original 1960s-70s tract homes along streets off North First Street and Old Oakland Road still run their original galvanized steel supply trunks and forced-air furnaces. But the same ZIP also contains 1980s-90s office and R&D buildings converted to flex space, many retrofitted with residential-grade Lennox equipment. The practical result is that we often find Lennox repair in Santa Clara and nearby areas deals with simpler systems, but here we see Lennox air handlers in residential settings sharing ductwork with commercial-style flex runs added during tech-era remodels, a combination that leads to mismatched static pressures and debris infiltration not seen in neighboring San Jose neighborhoods. When a homeowner ties three new flex runs into a plenum that was sized for a 2.5-ton system in 1972, the blower motor works against restricted airflow every cycle. That’s not a Lennox defect, it’s a North San Jose retrofit problem, and we see it weekly.
Lennox Models & Products We Service in North San Jose
We work on the full range of Lennox equipment found in North San Jose homes and converted spaces: Merit Series furnaces like the G61MPV, Elite Series variable-speed air handlers including the CBX32MV, XC Series air conditioners with their matching coils, and Dave Lennox Signature Collection furnaces like the SLP98V. For critical components such as blower motors and control boards, we use OEM Lennox parts. For standard flex duct, mastic, and insulation, we use high-quality aftermarket equivalents to keep repairs cost-effective. We’ll always give you an honest assessment of whether sealing and repairing your existing Lennox ductwork makes sense or if partial replacement is more practical for your North San Jose system. We also stock common Lennox-specific fittings and transitions so most repairs don’t require waiting on a parts shipment.
See the difference
Before
After
Before
After
Before
AfterLennox Service Pricing in North San Jose
Our Air Duct Cleaning in North San Jose for a typical Lennox system ranges from $450 to $850 depending on home size, number of returns, and coil accessibility. Larger homes or systems with heavy debris, multiple Lennox zones, or damaged duct sections run $850 to $1,400. What drives the cost: square footage, the number of supply and return runs, whether the evaporator coil is accessible for cleaning, the condition of existing ductwork, and whether duct sealing or repair is needed. Our estimates are free and specific. We give you one flat price per system agreed before work starts, no per-vent pricing, no bait-and-switch. Call (866) 593-7291 and we’ll talk through what your North San Jose Lennox system actually needs.
Serving North San Jose, CA – Our Local Coverage Area
We’re based in the North 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 North San Jose
North San Jose’s older 1960s-70s tract homes have original return ducts that were never sealed properly, and decades of remodels have added drywall dust and construction debris to the mix. Your Lennox furnace pulls that dust in through leaky return joints and deposits it directly on the blower wheel. If we can’t show you what we found, we haven’t done the job right. Give us a call at (866) 593-7291 and we’ll inspect it.
Yes, in most North San Jose installations we can access and clean the evaporator coil in place using our professional HEPA extraction equipment. Some tightly installed air handlers require coil removal, which we’ll tell you before we start. The coil is where pollen, ash, and dust from your return ducts end up, and a dirty coil is why your XC14 freezes up or short-cycles.
We can. North San Jose’s converted R&D buildings often have undersized or improperly supported flex runs attached to residential Lennox air handlers. We’ll camera-inspect the run, identify the restriction, and either re-support, replace, or re-route the flex so your air handler stops fighting the ductwork. This is exactly the repair work most cleaning-only companies can’t handle. Call us at (866) 593-7291 for an on-site look.
Every 3 to 5 years for most North San Jose homes, but if your system ran through the September-November fire season with heavy ash infiltration, check sooner. Homes with active remodels, pets, or occupants with respiratory concerns often benefit from a cleaning every 2 to 3 years. We can camera-inspect your ducts and tell you whether cleaning is actually needed, or if your Lennox system is still clean enough to wait. Call (866) 593-7291 and we’ll give you a straight answer.
For critical components like Lennox blower motors and control boards, yes. For standard duct materials like flex, mastic, and insulation, we use high-quality aftermarket equivalents that perform just as well at a lower cost. We’ll tell you which is which and why before any repair starts. Call (866) 593-7291 for a free estimate on your North San Jose Lennox system.
Service Areas Near North San Jose
Our team serves North San Jose and the surrounding South Bay communities. We regularly work in Sunnyvale, West San Jose, Santa Clara, Mountain View, and Cupertino. If you’re on the North San Jose border and unsure about coverage, call (866) 593-7291 and we’ll confirm. We’re North San Jose service area specialists and know this ZIP’s ductwork better than most.
Book Your Lennox Service in North San Jose Today
If your Lennox system is blowing dust, short-cycling, or struggling with airflow in North San Jose, we can diagnose and fix it. Call (866) 593-7291 for a free estimate and a straight answer. We bring professional-grade Rotobrush and Nikro equipment, camera inspections before and after, and one flat price per system agreed before work starts.
Written by Noel Brandt, Owner at Duct Cleaning Sunnyvale, serving North San Jose and the greater South Bay since 2005.