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 Lorenzo, CA
Lennox air duct cleaning in San Lorenzo typically runs $349 – $689 for a whole-home system, depending on duct count, access, and how much debris has accumulated over the decades. We’re an independent Lennox service provider, not a manufacturer-authorized shop, which means we diagnose what’s actually wrong without a corporate script. The thing that makes our Lennox work different here: we know San Lorenzo’s 1950s – 60s tract homes and what 60 years of oak debris, crawlspace moisture, and original ductwork does to a Lennox system. Call us at (855) 356-4417 for a free estimate. We also handle Lennox sales & service questions, including whether your ductwork is worth repairing or replacing.
Why San Lorenzo Residents Choose Us for Lennox Service
We’ve spent years servicing Lennox systems across San Lorenzo service area, and we know exactly how Merit Series, Elite Series, and Signature Collection units perform in this specific climate. Our owner, Teddy Rhodes, came up through the mechanical side of the trade at Las Positas College in Livermore, then spent the better part of two decades pulling apart duct systems in Dublin, Livermore, and now San Lorenzo. He’s the guy neighbors call when a bargain-basement cleaning crew leaves the job half done and the registers still blow dust.
We run professional-grade Rotobrush rotary brush systems and Nikro HEPA-equipped equipment on every job, plus Abatement Technologies negative-air filtration for proper containment. That’s remediation-level gear, not a shop vac and a coupon. And because we handle air duct repair alongside cleaning, we don’t just tell you a joint is disconnected. We seal it, mastic and all, then show you the before-and-after video.
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 Lorenzo
- Leaky plenum gaskets on 1990s – 2000s Lennox air handlers. San Lorenzo’s temperature swings between cool wet winters and dry summers cause gasket material to harden and crack. When the plenum leaks, your conditioned air dumps into the attic or crawlspace instead of the rooms. We identify and fix these during cleaning.
- Corroded Lennox evaporator coils from crawlspace moisture. After a wet winter, moisture wicks up into the duct system and settles on coil surfaces. Older Lennox coils are prone to corrosion, and that’s usually the source of the musty smell when the heat kicks on. We’ll address the duct side and tell you if the coil itself needs replacement.
- Disconnected flex duct on 1980s – 90s Lennox systems. The flex connectors age out, and rodents in San Lorenzo’s crawlspaces finish the job. We see separated joints regularly in the older tracts off Hesperian Boulevard, compounded by acorn and nesting material that rodents drag into the return side.
- Leaky seams in original 1960s – 70s Lennox metal ductwork. Decade after decade of thermal expansion and contraction opens seams. Once they’re open, attic insulation fibers and dust get pulled into the airstream. We seal those seams after cleaning so the system stays tighter.
- Acorn and oak debris clogging Lennox return ducts. In San Lorenzo’s oak-heavy neighborhoods, return ducts become squirrel and rat pantry storage. An acorn clog restricts return airflow, which stresses the blower motor and drives up energy use. We clear it and install guards on the exterior vents.
Lennox Service in San Lorenzo: What Local Conditions Mean for Your Equipment
In the tracts off Hesperian Boulevard, our techs regularly pull acorns and oak nesting material from Castro Valley return ducts. That’s debris unique to San Lorenzo’s abundant oak canopy. You won’t find this in neighboring cities with fewer trees. The oaks drop acorns in late summer and fall, and the rodents that forage them treat crawlspace duct runs like protected highways. They chew through flex duct sleeves, drag nesting material into returns, and leave droppings inside the system. For a Lennox owner in one of these mid-century ranches, that means return airflow drops, the blower works harder, and the air passing over those droppings and nests is what your family breathes. The fix isn’t just cleaning. You have to seal the entry points, repair what the rodents damaged, and guard the exterior vents. Otherwise, you’re cleaning the same acorns out again next spring. Teddy’s been organizing this kind of work long enough to know: if you can’t see what’s in your ducts, you’re just guessing – and guessing is no way to run a clean house.
Lennox Models & Products We Service in San Lorenzo
We service all Lennox service in Fairview and San Lorenzo residential lines found in local homes: the Lennox Merit Series (the workhorse builders installed in 1960s tract homes), the Lennox Elite Series (common in upgraded mid-century ranches), and the Lennox Signature Collection / Dave Lennox Signature Collection (found in larger custom homes and recent remodels). For critical components like blower motors and coils, we use OEM Lennox parts when available. For duct sealing, flex repair, and vent guards, we use high-quality aftermarket materials that match or exceed OEM spec at a fairer price. We keep common duct sealing supplies stocked locally, which means faster turnaround for San Lorenzo jobs. Video inspection comes standard on every cleaning, so you see what we see before we start and after we finish.
See the difference
Before
After
Before
After
Before
AfterLennox Service Pricing in San Lorenzo
Air duct cleaning for a typical San Lorenzo single-story ranch runs $349 – $689 for the whole system, one flat price agreed before work starts. No per-vent pricing games. Duct sealing is priced separately based on footage and access: most homes fall between $450 – $950 for sealing supply and return runs. Flex duct repair or replacement runs $18 – $28 per linear foot depending on diameter and location. Video inspection is included with our Air Duct Cleaning in San Lorenzo, and dryer vent cleaning runs $89 – $149 as a standalone service. What drives cost: crawlspace access difficulty, duct count, and how much rodent intrusion we’re dealing with. Call (855) 356-4417 for an exact quote. Estimates are free.
Serving San Lorenzo, CA – Our Local Coverage Area
We’re based in the San Lorenzo 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 Lorenzo
That smell in a San Lorenzo Lennox system almost always traces to moisture and organic material in the ducts or at the coil. After wet winters, crawlspace moisture rises into duct runs and settles on the evaporator coil and blower surfaces. Add a bit of rodent debris or oak material from the attic or crawlspace, and the heat turns that damp mess into a musty smell. We clean the ducts, inspect the coil, and if corrosion has set in on an older Lennox coil, we’ll tell you straight. Call (855) 356-4417 and we’ll diagnose it.
Yes. Most San Lorenzo ranches have attics with enough access for our equipment. We run Rotobrush agitation and Nikro HEPA extraction through the duct runs from the registers and plenum access points. Attic air handlers actually make access easier than crawlspace units in many cases. If your attic has disconnected joints or insulation falling into the returns, we’ll find it on video inspection and repair it while we’re there.
Every three to five years for homes built in the 1950s and 1960s, especially if you have oak trees near the house or pets indoors. Closer to every three years if anyone in the home has allergies or asthma. The original galvanized ductwork in these tract homes was never sealed to modern standards, so it pulls in attic dust and crawlspace air constantly. Older systems with rodents or construction debris should be cleaned once, sealed, and then maintained on a normal schedule. Call (855) 356-4417 for a free estimate on your system.
Yes, that’s a standard part of our duct repair service. We reattach separated flex connectors, replace collapsed or chewed sections, and seal joints with mastic rather than tape, which fails in San Lorenzo’s temperature swings. If the flex is too far gone, we’ll tell you and quote replacement by the linear foot so you can decide. We’d rather fix it right than sell you a cleaning that won’t hold.
Yes. Duct sealing is one of the most effective energy improvements for San Lorenzo homes with original metal ductwork. Leaky seams mean you’re paying to heat and cool the attic or crawlspace. We seal accessible seams with mastic, repair disconnected joints, and test airflow before and after. Most clients notice the difference at the registers within a day. Call (855) 356-4417 for a specific quote on your Lennox system.
Service Areas Near San Lorenzo
We serve San Lorenzo and the surrounding East Bay communities, including Ashland, Cherryland, plus Dublin, Livermore, and Danville. If you’re in a mid-century tract home with original ductwork, we know what you’re dealing with.
Book Your Lennox Service in San Lorenzo Today
Dirty ducts in a 60-year-old San Lorenzo home don’t fix themselves, and a basic cleaning won’t solve disconnected joints or rodent entry points. Call (855) 356-4417 for a free estimate and a straight answer on what your Lennox system actually needs.
Written by Teddy Rhodes, Owner at Duct Cleaning Dublin, serving San Lorenzo and the East Bay since the Fallon Road corridor was still being built out.