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 Berkeley, CA
We provide independent our Lennox services across Berkeley, from the flatlands to the hills. Our team at Hallmark Air Duct Cleaning handles the full scope: cleaning, sealing, and repairing ductwork connected to Lennox systems. The one thing that makes our Lennox work different here is that we’ve spent years pulling apart ducted systems in Berkeley’s pre-1940 housing stock, so we know exactly where these units fail in this specific climate and construction. Call (833) 467-6681 for a free estimate.
Why Berkeley Residents Choose Us for Lennox Service
We’re not a generalist HVAC company that bolts duct cleaning onto an install quote. Duct cleaning on Lennox equipment is what we do all day, and Berkeley’s housing stock forces a level of care most contractors never develop. Nelson Briggs, our owner, grew up offering Lennox service in Oakland near the Fruitvale neighborhood and came up through the building trades program at Laney College, where a hands-on instructor showed him that most indoor air problems start inside the ducts. That lesson stuck. Today, our approach to Lennox service in Berkeley is built on matching the right equipment to the specific duct type and contamination level, not running one tool through every house and calling it done. We stock OEM Lennox parts for blower motors, pressure switches, and control boards, which keeps communicating systems matched after we finish and means we’re not waiting on a parts house halfway across the Bay when your Berkeley home needs something fixed.
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 Berkeley
Lennox builds solid equipment, but Berkeley’s housing stock and climate create specific failure patterns. Here’s what we see week after week:
- Factory flex collars on Lennox air handlers that degrade and disconnect in Berkeley crawlspaces. The flexible duct collars Lennox uses at the air handler connection rot in damp crawlspace air. Once they separate, rodent debris and fog-belt moisture get pulled straight into the supply stream. We find this on Merit and Elite air handlers in flatlands bungalows and hillside homes alike.
- Hairline heat exchanger cracks on older Lennox Merit and Elite furnaces. Berkeley’s HVAC systems run far less than inland units because of the marine climate. Those long off-cycles let thermal expansion and contraction work on the exchanger metal, and when the system fires, dust and attic particulate migrate into the airstream through the cracks.
- Wet, mold-friendly evaporator coils paired with undersized original ductwork. Pre-1940 Berkeley homes were built for gravity furnaces or early forced-air systems. The duct runs are undersized for modern Lennox blowers. When we open the plenum on these systems, the coil is often sweating or icing because airflow is restricted by crushed flex and unsealed joints.
- Nuisance static pressure faults on communicating Lennox systems. The Signature Collection and other communicating Lennox units have sensors that trip when static pressure climbs outside spec. We regularly see faults triggered by original sheet-metal trunks that have never been sealed or resized for the modern blower.
- Rodent contamination in hillside crawlspace ducts. In the 94707 and 94708 hills, Lennox duct runs frequently pass through unlined crawlspaces that are active roof-rat and deer-mouse habitat. Flatland crews almost never see what we pull out of these systems.
Lennox Service in Berkeley: What Local Conditions Mean for Your Equipment
Berkeley’s housing stock is dominated by 1900s-1940s wood-frame bungalows, brown-shingle Craftsman homes, and small multi-unit buildings. Many of these homes still have original forced-air or converted gravity-furnace ducting that is uninsulated, undersized, and riddled with disconnected joints. In the Berkeley Hills, specifically around 94707 and 94708, those original Lennox duct runs often pass through unlined crawlspaces that are active roof-rat and deer-mouse habitat. We routinely pull nests and droppings from ducts that flatland Berkeley crews almost never encounter. Pre-1950 homes here can also have asbestos-wrapped duct sections or transite flue connections, which must be handled under Alameda County rules before any Lennox system cleaning begins. What this means for a Lennox in Albany owner in Berkeley: your equipment isn’t failing because Lennox builds a bad product. It’s failing because the duct system it’s attached to was installed decades before anyone imagined variable-speed blowers, HEPA filtration, or sealed building envelopes. Cleaning the ducts is step one. Sealing them is step two. Until both happen, the best Lennox equipment in the world is fighting a losing battle against Berkeley’s oldest houses.
Lennox Models & Products We Service in Berkeley
Our crew works on the full Lennox product range across Berkeley. The Merit Series furnaces and air handlers, the Elite Series variable-speed air handlers, and the Dave Lennox Signature Collection communicating systems all come through our schedule regularly. We also service Lennox Healthy Climate whole-home filtration and bypass humidifiers, since these components sit in the airstream and get clogged with exactly the kind of particulate Berkeley ductwork accumulates. On the parts side, we use OEM Lennox parts for blower motors, pressure switches, and control boards, because communicating systems need matched components. For duct repairs, we use quality aftermarket flex, mastic, and insulation, since the original materials are often no longer manufactured or were never appropriate for Berkeley crawlspaces in the first place. We always tell you honestly when a 20-year-old Lennox air handler is worth repairing versus when sealing and insulating the existing duct system will do more for your air quality than a new unit.
See the difference
Before
After
Before
After
Before
AfterLennox Service Pricing in Berkeley
Whole-system Lennox air duct cleaning in Berkeley typically runs between $450 and $900, depending on the square footage, number of returns, and how much contamination has built up. Hillside homes in 94707 and 94708 often land at the higher end because of longer duct runs through unconditioned crawlspaces and the additional containment required when rodent debris is present. Duct sealing and repair work is quoted separately, usually $600 to $1,800, depending on scope. Video inspection, which we recommend on any pre-1980 Berkeley home before cleaning starts, lets us see what’s actually in there and quote a fixed price before any work begins. Call (833) 467-6681 for an exact quote. Estimates are free, and we explain exactly what we found and what we recommend, whether or not you hire us.
Serving Berkeley, CA – Our Local Coverage Area
We’re based in the Berkeley area and also provide Lennox service in Piedmont, 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 Berkeley
Yes, but we assess the crawlspace first. We use Abatement Technologies negative-air and HEPA-filtration equipment during service, which means we contain what we dislodge rather than pulling contaminated air through your living space. If we find asbestos-wrapped duct sections or transite flue connections in a pre-1950 Berkeley home, we stop and follow Alameda County handling rules before any cleaning begins. Rodent nesting material is removed with the containment system running, so nothing recirculates. This is a specialist job. Call (833) 467-6681 and we’ll walk you through exactly what the process looks like for your house.
A static pressure fault after cleaning usually means the cleaning exposed restrictions that were always there but masked by buildup or loose connections. On communicating Lennox systems, the sensor trips when pressure climbs outside the manufacturer’s spec. In Berkeley’s pre-1940 homes, the original sheet-metal trunk was rarely sealed or resized for a modern blower. We find crushed flex runs, disconnected joints, and undersized returns all the time. The fix is duct sealing and sometimes resizing, not just another cleaning. Call (833) 467-6681 and we’ll diagnose what’s actually tripping the sensor.
Yes, in most cases. We access the coil through the plenum and clean it in place using our equipment, as long as the air handler is reasonably accessible. Berkeley crawlspaces and closet installs sometimes require partial disassembly, but full unit removal is rare. The coil is where mold and dust accumulate most heavily on Berkeley Lennox systems because the marine climate keeps things damp and the undersized ducts restrict airflow, so we almost always recommend including coil cleaning with any duct cleaning service. Call (833) 467-6681 to talk through your specific setup.
It depends on condition, but sealing usually comes first. Most Berkeley bungalows have duct runs that are leaky but structurally sound. Sealing with mastic and reconnecting separated joints often recovers 20-30% of airflow, which is sometimes enough to bring a Lennox system back into spec. If the ducts are crushed, rusted through, or were never sized for forced air in the first place, replacement makes more sense. We’ll video-inspect the system and show you exactly what we’re seeing before recommending a direction. Call (833) 467-6681 and we’ll put eyes on your ductwork.
Every 3 to 5 years for most Berkeley homes. The irony of Berkeley’s mild climate is that HVAC systems sit idle for long stretches, which lets dust, pollen, and rodent debris accumulate undisturbed. In the hills, where crawlspace activity is higher, we often recommend every 2 to 3 years, especially in 94707 and 94708. If you have allergy sufferers, pets, or a home built before 1950, lean toward the shorter interval. Call (833) 467-6681 and we’ll give you a straight answer for your specific house.
Service Areas Near Berkeley
We serve Berkeley, Oakland, Piedmont, Richmond, and Alameda. For Lennox owners further south, see Lennox service in Hayward or Lennox service in Alameda. Our full coverage area is listed on the Berkeley service area page.
Book Your Lennox Service in Berkeley Today
Ready to see what’s actually in your ducts? Call (833) 467-6681 for a free estimate. We’ll inspect your Lennox system, show you what we find, and quote one fixed price before any work begins.
Written by Nelson Briggs, Owner at Hallmark Air Duct Cleaning, serving Berkeley since 2011.