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 Danville, CA
We provide independent Lennox air duct cleaning and repair across Danville, and the work here is different from anywhere else in the East Bay. Danville’s 1980s – 90s custom homes often hide multi-zone duct runs in vaulted attics where problems stay invisible until airflow drops or zones stop balancing. We diagnose before we clean, because a Lennox system in this town is usually hiding something worth finding. Call (833) 589-9902 for a free estimate and we’ll show you exactly what’s going on inside your ducts.
Why Danville Residents Choose Us for Lennox Service
Duct cleaning is all we do. That focus matters when you own a Lennox system with variable-speed air handlers, zone dampers, and long trunk runs that punish sloppy work. Our crew uses Rotobrush and Nikro negative-pressure equipment, the same professional-grade systems commercial contractors run, not a shop vac bolted to a van. Darren Radcliffe, our owner, grew up near the South Hayward BART corridor and studied HVAC through the mechanical technology program at Chabot College before starting Duct Cleaning Hayward in 2011. He built this company around one habit: inspect first, explain what you found, then do the work. For Danville homeowners, that means you see the crushed flex or disconnected collar before we ever ask you to pay for fixing it.
We know Danville homes run hard from June through October. When your Lennox system pulls 95 – 105°F attic air through aging returns, the coil face loads up and static pressure climbs. We account for that before we clean, so the result actually restores airflow instead of just looking good on camera.
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 Danville
- Zone dampers starving one part of the house. Multi-zone Lennox systems use damper-actuated trunks, and after years of cycling those dampers leak at the blade edges and flex collars separate at the plenum. You get a master suite that never cools while the living room blasts. We find the leak, reseal the collar, and rebalance the zone in the same visit.
- Variable-speed blowers pulling wildfire ash onto the coil. Danville’s smoke seasons are a real operational load. Signature and Elite variable-speed air handlers pull hard through returns, and when wildfire smoke hangs over the valley, the evaporator coil face loads with fine ash faster than the filter suggests. Static pressure climbs, airflow drops, and the system works harder for less. We clean the coil and the full return path, not just the supply runs.
- Crushed flex in tight attic chases off Diablo Road. The older west-side homes were built with original 1970s – 80s Lennox flex runs through chases that leave almost no service clearance. Runs get crushed, kinked, or disconnected at the takeoff and dump conditioned air into the attic for years. Video inspection from the plenum is the only way to see it.
- Dried-out mastic at trunk transitions. Under repeated 100°F attic heat, the mastic taping Lennox plenum and trunk transitions from decades ago dries, cracks, and opens return-side leaks. The return starts pulling attic dust and insulation fibers into the airstream, and that’s what you’re breathing. We re-mastic and reseal those transitions as part of the job.
- Long flex runs on multi-zone executive homes in 94506. The newer custom builds often run flex 40 feet or more through unconditioned attic space to reach far bedrooms. Any sag, kink, or loose collar along that run throttles the whole zone. We pressure-test from the plenum to find the restriction, then clean and seal the entire path.
Lennox Service in Danville: What Local Conditions Mean for Your Equipment
Danville’s older west-side neighborhoods off Diablo Road present a specific problem for Lennox owners that no generic duct cleaning service sees. Those original homes were framed with the Lennox duct trunks buried behind finished walls and attic clearances so tight that no technician has ever laid eyes on the full run. When airflow to one bedroom drops or a zone stops balancing, the cause isn’t visible from the register. It’s a crushed flex section, a disconnected collar, or a collapsed takeoff sitting somewhere in that chase. The only way to confirm it is video inspection and pressure testing from the plenum, looking backward through the trunk and mapping where static pressure falls off. That’s diagnostic work, not a quick blow-out. On a west-side Danville job off Diablo Road, a homeowner with a Lennox Signature furnace and multi-zone dampers complained the master suite never heated while the living room ran hot. Our tech ran a video inspection from the plenum and found a disconnected flex collar and a crushed run buried behind the finished wall in the tight attic chase. We resealed the collar, replaced the crushed section, and re-mastic’d the trunk transitions. The zone balanced out the same day. If I can’t show you what I found, I won’t charge you for fixing it.
Lennox Models & Products We Service in Danville
We work on the full range of Lennox ducted systems found in Danville homes: Dave Lennox Signature Collection G61MPV furnaces with matching XC-series outdoor units, Merit Series ML180 and ML193 furnaces on multi-zone layouts, Elite Series variable-speed air handlers paired with XC13 and XC21 condensers, and Lennox Healthy Climate filtration and HRV/ERV systems on custom builds. For any repair, we use OEM-spec Lennox-compatible flex, collars, and damper hardware where fit matters, and quality aftermarket mastic and insulation elsewhere. We won’t charge you extra for an OEM label that doesn’t change how the part performs. If a heat exchanger or air handler is truly spent, we’ll say so plainly. Most airflow problems in Danville are solved with sealing, rerouting, and coil and blower cleaning rather than replacement.
See the difference
Before
After
Before
After
Before
AfterLennox Service Pricing in Danville
Air duct cleaning for a Lennox system in Danville typically runs $350 – $650 depending on the number of zones, the length of the trunk runs, and how much smoke-season residue has settled on the coil. Homes with heavily over-extended runs in vaulted attics or disconnected flex behind finished walls land on the higher side because the diagnostic and repair work takes more time. Dryer vent cleaning runs $85 – $150. Duct repair is quoted per job after inspection, and the estimate is free. What drives cost here is access: if we’re working in a tight chase off Diablo Road, that’s a different job than a wide open attic in 94506. The written estimate sets the final price before any work starts, and you’ll see video of exactly what we found. Call (833) 589-9902 for a quote tailored to your system.
Serving Danville, CA – Our Local Coverage Area
We serve Danville 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 Danville
No. We’re an independent Lennox service provider, not a factory-authorized dealer. That’s an honest distinction, because it means we choose parts based on what works rather than what the label says. We use OEM-spec Lennox-compatible flex and damper hardware where fit matters and quality aftermarket components elsewhere. Nothing about our independence changes the quality of the work; it just means nobody’s pushing us to sell you a new system instead of fixing the one you have.
Most whole-house Lennox systems in Danville take 4 – 6 hours including video inspection and any minor sealing or collar repairs. Homes with multi-zone systems and hard-to-reach attic chases can push toward a full day, especially if we’re working around finished ceilings and vaulted spaces. We’ll give you a realistic time frame when you book, and the estimate is free. Call (833) 589-9902.
We service the ducted part of Lennox systems: furnaces like the Signature G61MPV and Merit ML180/ML193, Elite variable-speed air handlers, XC-series condensers, and Healthy Climate filtration and HRV/ERV units. We don’t repair refrigerant circuits or swap compressors, but everything that moves air through your ductwork is in our scope.
Yes, often more than older homes. Newer executive builds in Danville’s 94506 area tend to have long flex runs, multiple zones, and generous square footage that hides leaks better than a compact 1970s rancher. A disconnected collar or sagging flex run on a 60-foot trunk wastes conditioned air for years before anyone notices, because the system is oversized enough to mask it. Sealing and pressure testing is how we confirm the system is actually delivering what it’s rated for. Call (833) 589-9902 and we’ll inspect yours.
Because they’re skipping the diagnostic work and cleaning only the supply runs they can reach from a register. A basic blow-out on a Lennox system with a crushed flex run off Diablo Road will leave the airflow problem untouched and hand you a bill for nothing. We include video inspection, plenum pressure testing, and coil cleaning, and the written estimate sets the price before work begins. Call (833) 589-9902 for a quote that reflects what your system actually needs.
Service Areas Near Danville
We serve Danville and the surrounding East Bay communities, including San Ramon, Dublin, Pleasanton, Castro Valley, and Fremont. If you’re in one of these areas with a Lennox system that isn’t moving air the way it should, call us and we’ll get it sorted.
Book Your Lennox Service in Danville Today
Your Lennox system wasn’t installed to limp along with throttled airflow and smoke-season buildup. Call (833) 589-9902 for a free estimate and we’ll show you, on video, exactly what’s inside your ducts. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday.
Written by Darren Radcliffe, Owner at Duct Cleaning Hayward, serving Danville since 2011.