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 Mar Vista, CA
We provide independent Lennox air duct cleaning across Mar Vista’s 90066 zip code, and the work here looks different than it does three miles inland. Most Lennox homes in Mar Vista carry 1950s galvanized trunk lines spliced to newer flex runs, buried under blown-in insulation, and the blower has been fighting that mess for decades. Call (833) 631-4988 for a free estimate, and we’ll bring a camera, not a clipboard.

Duct Cleaning Brentwood handles Lennox sales & service support for ductwork, full system cleaning, and repair. We’re not a Lennox dealer and we don’t pretend to be. We’re the crew that opens the duct and tells you what’s actually in there.
Why Mar Vista Residents Choose Us for Lennox Service
Rick Sommer, our owner and lead tech, grew up in Brentwood and still lives minutes from Marsh Creek. He started this business after his daughter’s allergies pushed him to gut his own system, and what he pulled out convinced him this was full-time work. That’s the standard we bring to every Lennox repair in Cheviot Hills and every Lennox job in Mar Vista.
Lennox variable-speed systems are picky about return air. Most Mar Vista bungalows were built for gravity furnaces, then retrofitted with forced-air Lennox equipment and ductwork that never quite matched. We understand that mismatch because we’ve spent years working on it across the Westside, including Palms. We use Rotobrush and Nikro cleaning systems, and we stock Honeywell and Aprilaire components for air quality upgrades. We also carry Abatement Technologies products for contaminant control. If your ducts are torn, we repair them rather than clean around the damage.
And we say it plainly: we are independent. Not authorized, sponsored, or endorsed by Lennox. That matters because we’d rather diagnose than upsell.
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 Mar Vista
- Starved returns on variable-speed air handlers. Mar Vista bungalows with original 1950s sheet-metal returns can’t feed a Lennox CBX32MV or G61MPV the air it wants. The blower ramps up to compensate, pulling attic dust past every unsealed joint. We clean and seal the return path so the blower stops working harder than it should.
- Marine-layer coil fouling. Cool overnight air and coastal humidity feed the Lennox evaporator coil until it grows a damp, fibrous mat across the coil face and drain pan. That mat re-mists the supply trunk every time the blower kicks on. We pull the coil, clean it, and treat the pan so condensate drains instead of breeding more grime.
- Salt-air condenser grime. Lennox XC14 and XC16 outdoor units set close to the property line collect a fine salt-air film on the coil fins. It cuts airflow and eats at the low-voltage terminals on the control board. We clean the fins and inspect the board terminals before corrosion turns into a no-cool call.
- Heat exchanger fouling on older G61MP furnaces. Decades of basin dust drawn through undersized returns settles on the heat exchanger before the burners even fire. On 20-year-old G61MP units we’ll show you photos of the exchanger and tell you straight whether the repair still clears its own cost.
- Blackening supply registers weeks after cleaning. This is the tell of unsealed duct joints in Mar Vista. The blower pulls attic insulation and dust into the supply side, and the registers go black fast. We trace the leak with video inspection and mastic-seal the branch collars.
Lennox Service in Mar Vista: What Local Conditions Mean for Your Equipment
In Mar Vista’s 90066, the original 1950s galvanized trunk-and-branch runs were buried under blown-in attic insulation during the ’80s energy retrofits. Our Lennox crews routinely find duct joints sleeved in insulation and unsealed at every branch, invisible from the attic hatch and only surfaced by video inspection, on calls for Lennox service in Sawtelle and throughout the Westside. A mid-century ranch off Grand View Boulevard comes to mind: a Lennox G61MP furnace whose registers blackened within weeks of cleaning. Video showed the original bare galvanized trunk spliced to a ’90s flex run under the insulation, three generations of ductwork joined with no mastic. We sealed the branch collars, rewrapped the trunk, and cleaned both runs end to end. The registers stayed clean and the blower stopped ramping to max on startup.
The duct doesn’t lie, open it up and you’ll know exactly what you’ve been breathing.
That’s the Mar Vista difference. Homes here have been remodeled and re-ducted piecemeal for seventy years. A single house can carry 1952 galvanized, 1987 flex, and 2014 duct board, all spliced together and half-sealed. Lennox equipment in Bel Air faces the same issues – variable-speed equipment is smart enough to fight that restriction, but it shouldn’t have to.
Lennox Models & Products We Service in Mar Vista
We clean and service ductwork connected to Lennox G61MPV and G61MP gas furnaces, EL296V and ML193 furnaces, XC14, XC16, and XC20 condensers, and CBX27UH and CBX32MV air handlers. On repair work we use genuine Lennox OEM parts for control boards, blower motors, heat exchangers, and drain components. We’ll use quality aftermarket equivalents only where the spec genuinely matches.
If your Lennox system is older and the repair cost is climbing, we’ll show you the coil, the exchanger, and the duct photos. You decide with real information, not a sales script.

See the difference
Before
After
Before
After
Before
AfterLennox Service Pricing in Mar Vista
Air duct cleaning for a typical Mar Vista home runs $450 to $900, depending on the number of returns, the length of the trunk, and how much of the original 1950s ductwork is still in place and partially unsealed. Dryer vent cleaning runs $120 to $250, and it’s priced flat per vent, not per foot. Duct repair and sealing work is quoted after video inspection, because we won’t quote sealing a system we haven’t seen.
Every estimate includes video inspection of the returns and supply runs. We agree on one flat price per system before work starts, and you get before-and-after photos of your own ducts. Call (833) 631-4988 for a free estimate. We’ll tell you what’s in there, and what it costs to get it out.
Serving Mar Vista, CA – Our Local Coverage Area
We’re based in the Mar Vista 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 Mar Vista
Because the return side of your ductwork is pulling attic air past unsealed joints before it ever reaches the Lennox blower. The black at the registers is insulation dust and decades of Los Angeles basin grime entering the supply run downstream of the filter. Cleaning the ducts helps, but the fix is sealing the joints. Call (833) 631-4988 and we’ll video the joints and show you exactly where the air is leaking in.
Yes. It’s slower work because the insulation has to be moved carefully around each branch, but we do it regularly in 90066. The bigger issue is that those buried joints are almost always unsealed, which is why we recommend video inspection before cleaning. If the joints leak, cleaning alone won’t hold. Call (833) 631-4988 to schedule an inspection and get a flat quote for cleaning plus sealing.
Yes. A Lennox CBX32MV or G61MPV blower ramps based on static pressure, and when the return is dirty or undersized the blower pulls harder and moves more dust through every gap. We clean the return side first and check static pressure before and after, because on variable-speed units the goal is to give the blower clean, low-resistance air, not just to make the ducts look good.
The salt air attacks the outdoor condenser coil and the low-voltage terminals, not the ductwork itself. But a corroded control board can short-cycle the blower, which stirs dust and sends it through the system unevenly. We clean the condenser fins and inspect the board terminals as part of Lennox duct service, because the outdoor unit and the indoor air path are one system.
Yes, and we’d argue it’s the single most useful thing we do on remodeled Mar Vista homes. Those houses carry splices between 1950s galvanized, ’80s flex, and newer duct board, and the problem is never where you can see it from the attic hatch. Video shows the joints, the gaps, and the buildup. You’ll know what you’re paying to fix. Call (833) 631-4988 for a free estimate with video inspection included.
Service Areas Near Mar Vista
We serve Mar Vista and the surrounding Westside neighborhoods, including Mar Vista service area coverage for 90066. Our Lennox duct crews also work in Pico-Robertson, Beverly Grove, Brentwood, Pacific Palisades, Sawtelle, and Cheviot Hills.
Book Your Lennox Service in Mar Vista Today
If your Lennox registers are blackening, your blower is ramping hard, or you just want to know what’s in the ducts before you breathe another season of it, call Rick and the team at (833) 631-4988. We’ll schedule a video inspection and give you a flat quote for the cleaning and repair work. No per-vent pricing, no van-arrival surprises.
Written by Rick Sommer, Owner & Lead Technician at Duct Cleaning Brentwood.