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 Palo Alto, CA
We provide independent Lennox air duct cleaning across Palo Alto, from Professorville ranchers to Stanford-adjacent rebuilds, as well as Lennox in Cupertino. What makes our work here different is simple: we know how Lennox systems fail in shallow, dirt-floored crawlspaces, because we’ve pulled apart enough of them in Crescent Park and Old Palo Alto to recognize the pattern. Call (866) 593-7291 for a free estimate and we’ll tell you exactly what’s going on, with camera proof.
As an independent duct shop, not a Lennox factory branch, we diagnose every system on its own merits. We work on more Lennox air handlers in Palo Alto than most generalists see all year. Our familiarity comes from years of Lennox sales & service field work across the Peninsula, paired with rotor brush extraction and HEPA filtration equipment that leaves nothing behind but clean metal and sealed joints.
Why Palo Alto Residents Choose Us for Lennox Service
Homeowners here don’t call us for a generic vacuum job. They call because the Lennox system that ran fine in July suddenly pushes weak air from the back-bedroom registers in November, right when heating season starts and the crawlspace dust gets pulled through the return. We’ve been tracing those problems in Palo Alto long enough that we know where to look first, and we also offer our Air Duct Cleaning in Palo Alto for comprehensive service. Noel Brandt, our owner, grew up near the Murphy Avenue corridor and spent two decades pulling duct systems apart before founding this company. He’ll tell you straight when a return leak is the culprit and when the coil itself needs work. If we can’t show you what we found, we haven’t done the job right.
We run contractor-grade Rotobrush rotary brush extraction and Nikro HEPA-rated vacuum equipment on every job. That’s the same standard commercial and remediation contractors use, not a shop vac with a brush head. After cleaning, we seal accessible joints with mastic and replace damaged flex where needed. You’re getting a diagnosis and a fix from one team, not an upcharge phone call two days after the cleaning.
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 Palo Alto
- Separated flex takeoffs at the cased coil. On Lennox Merit and Elite systems in older Palo Alto ranchers, the flex runs that connect the cased coil to the trunk line sag and separate over a couple of decades. When that happens, the return side pulls air straight from the crawlspace. In Crescent Park, where oak leaf litter sits inches from the ducting, the blower wheel and evaporator coil load up fast.
- Variable-speed air handlers with weak airflow. Lennox SL28XCV and XC25 systems move air at low, quiet speeds for long stretches, which is efficient but means fine pollen and dry-season dust settle on blower wheels and coils slowly enough that nobody notices until airflow has dropped meaningfully. Palo Alto’s long rainless summers make this worse.
- Unsealed galvanized trunk and branch runs. Pre-1950 Eichler-era homes in Old Palo Alto and Professorville often have original galvanized ducting in attics or subfloor chases. Joint mastic dries and cracks over decades. Supply registers deliver a fraction of rated airflow, and the hot/cold room split gets obvious every heating season.
- Winter condensation and coil corrosion. Cool nights and wet winters in Palo Alto push moisture into crawlspaces, and shallow dirt-floored subfloor plenums are especially vulnerable. Lennox coil fins corrode faster when they’re breathing damp air, and duct-wrap insulation wicks moisture and falls away from the metal underneath.
- Pest intrusion in shallow crawlspaces. Rodents and roof rats love older Palo Alto subfloor chases, especially under ranchers with open foundation vents. When duct seams separate or flex runs tear, pests get inside the system and foul the return before heating season begins.
Lennox Service in Palo Alto: What Local Conditions Mean for Your Equipment
Palo Alto’s split housing stock creates two completely different duct-cleaning challenges. In the 1940s through 1960s single-story ranchers and Eichler-style homes clustered around Professorville and Old Palo Alto, ductwork routes through shallow, dirt-floored crawlspaces. Oak leaf litter, blown dust, and rodent activity accumulate in those spaces all year, invisible until the Lennox system kicks into heating season and the return side starts pulling that debris into the air handler. We’ve run camera scopes through returns in Crescent Park that looked clean at the register but were packed with leaf fragments and nesting material within the first six feet. Meanwhile, newer multi-story rebuilds near Stanford and in south Palo Alto use sealed, modern duct systems that need a different approach: less sealing, more attention to construction dust settled in the trunk lines after the last remodel. Knowing which Palo Alto house you’re standing in before opening the ductwork changes how we clean it.
Lennox Models & Products We Service in Palo Alto
We clean duct systems attached to the full Lennox residential line: Merit Series units like the 13ACX and ML14XC1 with matching cased coils and flex plenum takeoffs, the Elite Series EL16XC1 and XC21 variable-speed air handlers, and Signature Collection SL28XCV and XC25 variable-capacity systems with ceiling- or attic-mounted air handlers. We also service ducting downstream of Lennox Healthy Climate filtration assemblies and bypass or powered humidifiers installed at the return. For parts, we use Lennox OEM components where fit and control compatibility matter: blower assemblies, coil parts, and sealed-interface pieces. Where performance is equivalent, we use quality aftermarket flex, mastic, and insulation. When a Lennox air handler or coil is heavily corroded or repeatedly failing, you’ll get a straight repair-versus-replace recommendation, not a patch job that buys six months.
See the difference
Before
After
Before
After
Before
AfterLennox Service Pricing in Palo Alto
Air duct cleaning in Palo Alto for a Lennox system typically runs between $450 and $900 depending on the number of returns, the duct layout, and whether we’re dealing with one system or two. Duct sealing runs $300 to $700 as a focused job, and when it’s combined with cleaning, pricing is adjusted for the overlap in labor. Blower wheel and evaporator coil cleaning falls between $180 and $400. Dryer vent cleaning is $125 to $250. Every estimate includes a camera inspection before and after, so you see exactly what was in the ducts and what they look like when we’re done. No per-vent games, no bait-and-switch pricing. Call (866) 593-7291 for an exact quote on your Palo Alto system.
Serving Palo Alto, CA – Our Local Coverage Area
We’re based in the Palo Alto area and know this community well, including nearby communities like Lennox in Mountain View. Use the map below to see our service coverage – if you’re nearby, we can almost certainly help.
FAQs – Lennox Air Duct Cleaning in Palo Alto
In older Palo Alto homes with subfloor ducting, the return side of a Lennox system operates under negative pressure, so any gap in the flex takeoff at the cased coil or an unsealed trunk seam pulls air from the crawlspace, not from the living space. That’s why leaf litter, rodent debris, and dust end up packed inside the return and on the blower wheel even though your registers look clean. The fix is cleaning the return and supply runs, then sealing the leaks at the plenum and trunk joints. Call (866) 593-7291 for a camera inspection.
Usually yes. Variable-speed Lennox air handlers run at low, quiet speeds for long stretches, so when the blower wheel and evaporator coil load up with fine pollen and dry-season dust, the airflow reduction is gradual. By the time you notice it, the system is working against a significant restriction. Cleaning the blower wheel and coil, and checking for return-side leaks, typically restores airflow. Call (866) 593-7291 and we’ll scope the system.
Yes. We include evaporator coil and blower wheel cleaning as a standard part of our Lennox duct cleaning service in Palo Alto, not as a separate add-on that gets quoted after we’re already on-site. The coil and blower are where the airflow restriction starts, so cleaning the ductwork without touching them only solves half the problem.
That depends on what the camera shows. Eichler-era homes often have original galvanized trunk and branch runs with dry, cracked mastic at the joints. If the metal is intact, sealing the joints and replacing failed flex takeoffs is usually enough. If the ducting has collapsed, corroded through, or been chewed open by pests, we’ll recommend replacing the affected runs. We’ll show you footage so you’re making the call with evidence, not a sales pitch.
It can. Palo Alto’s cool, wet winters push moisture into dirt-floored crawlspaces, and Lennox coils installed in subfloor systems breathe that damp air. Over time, coil fins corrode and duct-wrap insulation falls away from the metal. If you’re seeing reduced cooling performance after a wet winter, or if the coil looks rusty when we scope it, moisture is part of the story. The fix varies: sometimes it’s sealing and insulation, sometimes it’s a repair-versus-replace call on the coil itself. Call (866) 593-7291 and we’ll diagnose it properly.
Service Areas Near Palo Alto
We serve Palo Alto and the surrounding Peninsula communities, from Palo Alto service area coverage across ZIP codes 94303, 94304, 94306, and 94309, north to Redwood City, south to Milpitas, and through Mountain View, Cupertino, and Sunnyvale. If your Lennox system sits in a crawlspace or attic anywhere on the Peninsula, we’ll bring the same equipment and the same straight talk.
Book Your Lennox Service in Palo Alto Today
If your Lennox system is pushing weak airflow, showing signs of crawlspace debris, or the registers in your Palo Alto home blow dust against the baseboards, let’s fix it. Call (866) 593-7291 for a free estimate and a camera scope that shows you exactly what’s in your ducts.
Written by Noel Brandt, Owner at Duct Cleaning Sunnyvale, offering Sunnyvale Lennox service and serving Palo Alto and the Peninsula.