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 Piedmont, CA
We’re an independent Lennox service provider cleaning and repairing air ducts across Piedmont, CA. The work here is different because most Lennox systems in Piedmont sit atop original 1910s – 1930s gravity-furnace ductwork, often concealed in wall cavities with no standard access. We cut custom access openings, clean the legacy sheet-metal runs, and seal them properly. Call (833) 589-9902 for a free estimate.

Our crew has spent years pulling, sealing, and rehabbing Lennox forced-air systems across the East Bay, from older single-stage furnaces to modern variable-speed air handlers. We read Lennox’s own install and airflow specs so duct sizing, return static pressure, and coil cleanliness are handled to the equipment’s actual tolerances. We’re an independent shop, not affiliated with or authorized by Lennox, which means we answer to you, not a manufacturer’s program.
Why Piedmont Residents Choose Us for Lennox Service
Duct cleaning in Piedmont isn’t a quick vacuum job. It’s a plaster-and-sheet-metal rehab. Darren Radcliffe, our owner, grew up near the South Hayward BART corridor and has spent most of his life working on East Bay homes. He studied HVAC through the mechanical technology program at Chabot College in Livermore, then spent years in the trade before starting Duct Cleaning Hayward in 2011. When he walks into a Piedmont Lennox system, he knows what he’s looking at.
We run Rotobrush and Nikro negative-pressure equipment, the same professional-grade systems commercial contractors use. We also work with Honeywell and Aprilaire air quality components, so if your Lennox system needs a better filter cabinet or air cleaner during a cleaning, we can handle it in the same visit. And when the ductwork itself is compromised, we repair it. We repair what others just clean around.
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 Piedmont
- Undersized returns loading the evaporator coil. Many Piedmont Lennox air handlers and furnaces run against original sheet-metal returns that were sized for gravity airflow, not modern blower pressure. The blower pulls attic and crawlspace debris past a thin filter and straight onto the Lennox coil. We clean the coil and, where needed, seal and repair the return run.
- Mildew odor from wall-cavity runs. Piedmont’s wet winters keep homes closed up for months. Lennox variable-speed air handlers recirculate mildew odor and fine oak or redwood pollen that has settled in concealed runs. The smell comes through the supply registers. We find those runs with video inspection and clean them properly.
- Stress cracks on older Lennox Merit and Elite heat exchangers. When a legacy gravity-furnace duct system was retrofitted with a single high-static blower, the exchanger runs hotter than it should. We check the exchanger while the system is open for cleaning. If we find a crack, we tell you straight, because that’s a safety issue, not a cleaning issue.
- Sagging flex-duct splices choking airflow to Lennox zones. Partial flex additions spliced onto original galvanized trunks loosen over time. Debris collects at the joints, airflow drops to specific zones, and the Lennox equipment short-cycles or trips a high-limit. We repair the splices and seal the runs with mastic.
- Minimal access to concealed ducts. Original Piedmont duct runs often sit inside wall cavities behind plaster, with no register opening at all. We routinely cut custom access panels, clean the run, then seal the opening so it can be reopened later. Standard vent registers simply don’t apply here.
Lennox Service in Piedmont: What Local Conditions Mean for Your Equipment
Piedmont is an enclave of vintage 1910s – 1930s architect-designed houses, many with original gravity furnaces or early forced-air conversions. A Lennox furnace installed in one of these homes almost always sits atop ductwork that was never designed for it. Original runs are concealed inside wall cavities behind plaster, so technicians often work with custom access cuts rather than standard vent registers. That means cleaning and sealing a Lennox system here is as much a plaster-and-sheet-metal rehab job as a vacuum job. On a Period Revival home off Highland Avenue, our crew serviced a Lennox Elite furnace whose supply air smelled musty every winter. Video inspection showed a hidden wall-cavity return packed with decades of redwood and oak pollen feeding a dirty evaporator coil. We cut a custom access panel, cleaned and mastic-sealed the legacy galvanized trunk, repaired a sagging flex splice, and cleaned the Lennox coil and blower. The odor cleared and static pressure dropped back into spec.
Mild, dry summers and wet winters with no snow shape how quickly debris accumulates. Homes closed up during winter rain and summer fog cycles circulate whatever sits in the ducts. Piedmont’s century-old redwood and oak trees drop fine pollen that enters attic and crawlspace duct runs through loose original joints. If your Lennox system has been retrofitted with partial flex-duct additions, those splices are likely where the debris enters.
Lennox Models & Products We Service in Piedmont
We service Lennox forced-air products across Piedmont, including Lennox Elite series gas furnaces, Lennox Merit series furnaces and air handlers, Lennox XC and XP outdoor condenser and heat pump units paired with indoor air handlers, and Dave Lennox Signature Collection variable-speed air handlers. For each, we follow Lennox’s airflow and install specs when cleaning and sealing the duct system.
Parts choice depends on the job. We use OEM Lennox filters, gaskets, and access panels where fitment and airflow calibration matter. For duct repairs, we use quality aftermarket mastic, flex, and sheet-metal stock. We’ll clean and seal a sound Lennox system rather than upsell replacement, but we’ll tell you honestly when a cracked heat exchanger or failed blower makes repair uneconomical.
See the difference
Before
After
Before
After
Before
AfterLennox Service Pricing in Piedmont
Duct cleaning in Piedmont is priced per job by the written estimate. What drives the cost here is access. Original wall-cavity runs require custom access cuts, plaster repair, and mastic sealing, which takes more time than a standard register-to-register cleaning. A typical Piedmont Lennox system with legacy sheet-metal ducts and one or two flex additions is a full-day job. We also offer air duct repair as a standalone service, because cleaning won’t fix a collapsed run or a loose splice.

The estimate is free and the price is set before work starts. No per-vent pricing, no bait-and-switch. If I can’t show you what I found, I won’t charge you for fixing it. Call (833) 589-9902 and we’ll schedule an assessment. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday.
Serving Piedmont, CA – Our Local Coverage Area
We serve Piedmont and nearby communities. Use the map below to see the area we cover. If you’re nearby, we can almost certainly help.
FAQs – Lennox Air Duct Cleaning in Piedmont
Yes. We cut custom access openings at the points where the original runs are reachable, usually in closets, basement ceilings, or crawlspace transitions. The cut is sized for our Rotobrush and Nikro equipment, then closed with a sealed access panel so it can be reopened for future service. We don’t tear out plaster walls.
It’s usually both. Piedmont homes close up during winter rain, and a variable-speed Lennox air handler recirculates air that has been sitting in concealed wall-cavity runs. The odor comes from mildew and fine pollen in the ducts, but the evaporator coil is often coated with the same debris. We clean the runs, the coil, and the blower wheel together. Leave it long enough and the coil itself grows odor-producing buildup. Call (833) 589-9902 for a video inspection and free estimate.
Yes. Lennox variable-speed air handlers and high-efficiency furnaces measure static pressure continuously. If the original Piedmont ductwork is undersized or partially collapsed, cleaning alone won’t fix the airflow problem. We check static pressure after cleaning and repair or enlarge runs where needed. We read Lennox’s own airflow specs so the work lands within the equipment’s tolerances.
Often, yes. The splice points between original galvanized trunk and newer flex are the first places to sag, separate, and collect lint. This chokes airflow to specific zones and causes the Lennox equipment to short-cycle. We repair the splices, seal them with mastic, and replace damaged flex sections. The work is part of our air duct repair service, not just cleaning.
We do. Older Lennox Merit and Elite heat exchangers can develop stress cracks when a legacy gravity-furnace duct system was retrofitted with a single high-static blower. While the system is open for cleaning, we inspect the exchanger. If we find a crack, we stop and tell you. A cracked heat exchanger is a safety issue and needs a replacement decision, not more cleaning. Call (833) 589-9902 to schedule a thorough cleaning and inspection.
Service Areas Near Piedmont
We serve Piedmont and the surrounding East Bay communities, including Oakland, Alameda, Hayward, Fremont, and Castro Valley. If your Lennox system sits on older ductwork anywhere in the region, we’ll bring the same custom-access approach.
Book Your Lennox Service in Piedmont Today
Your Lennox system works with the ducts it has, not the ducts it should have. We inspect, clean, and repair both. Call (833) 589-9902 for a free estimate. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday.
Written by Darren Radcliffe, Owner at Duct Cleaning Hayward, serving Piedmont since 2011.