Whole-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.
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AfterFast, Reliable Air Duct Repair Across Calabasas
Air duct repair in Calabasas typically costs between $350 and $1,800 depending on whether we’re sealing a plenum, replacing a crushed flex run, or extracting post-Woolsey ash from return plenums. Most repairs we do in The Oaks, Mont Calabasas, and along Las Virgenes Road are finished in a single visit because we stock the common duct sizes and sealants these homes use. If your vents whistle, your upstairs rooms barely breathe, or you smell dust every time the system kicks on, call us at (980) 447-2498 and we’ll give you a written price before any work begins.
We work in Calabasas enough to know the difference between a 1988 flex-duct system and a 2004 rigid-metal install without opening the first access panel. That local familiarity means faster diagnosis and a repair quote that reflects what your house actually needs, not what a stranger with a van hopes you’ll pay for.
Why Linden Air Duct Cleaning Is Calabasas’s Preferred Air Duct Repair Company
Calabasas homeowners call us because we treat the job like it’s our own house on the line. The Threshold Standard means every technician who arrives at your door in Calabasas has been background-checked, identity-verified, and photo-badged. You get the tech’s name and photo before the visit, and they show a photo ID badge at the door. Every time. That matters when you’re home alone or when your kids are napping upstairs and a stranger needs to walk through the house.
We’ve been repairing ductwork as part of the Threshold Group family since 2004. Owner Marcus Veale set the rule early: a written price before any work starts, and a written guarantee on every repair. No exceptions. If a covered repair fails within 365 days, we return at no charge under the 365-Day Done Right Promise. That’s not a promotion. It’s the way we’ve always worked.
Response time to Calabasas is straightforward: our Los Angeles office dispatches crews serving Calabasas locally, and we schedule around your day, not ours. When you call (980) 447-2498, a live person answers. Not a voicemail loop. Not a callback queue. A human being who can book the visit and answer your questions the first time.
Ductwork Installation in Calabasas
Ductwork Installation in Calabasas usually means one of two things: a partial replacement of collapsed or torn runs in an existing system, or a full install when a renovation or addition changes the footprint of the house. In Calabasas, where homes run 3,500 to 7,000+ square feet with multiple HVAC zones, partial duct replacement typically runs $1,200 to $4,500 depending on how many runs are involved and how accessible the attic or crawl space is. Full-system installation in a large Calabasas home can exceed $8,000, and we quote it as one flat price per system before any work begins.
We use professional-grade equipment from Nikro and Rotobrush on every install, and we pair new ductwork with air-quality products from Honeywell or Aprilaire when the home has a history of excess dust or post-fire particulate concerns.
Replacing Collapsed Runs
In Calabasas homes built between the mid-1980s and early 2000s, flexible ductwork has often outlived its useful life. The outer jacket tears, the inner liner sags, and the whole run collapses near a joist or strap point. We cut out the crushed section, run new insulated flex, and seal every connection with mastic and UL-listed tape. Not duct tape. The real stuff that holds.
New Zones for Renovations
When Calabasas homeowners convert a garage, finish a basement, or add a second-story wing, the existing duct plan rarely covers the new square footage. We size new supply and return runs to the room’s CFM load, tie them into the air handler, and balance the zone so the new space actually heats and cools. The price is written before we order the first stick of duct.
HVAC Duct Installation in Calabasas
HVAC Duct Installation in Calabasas refers to the ductwork that connects your furnace or heat pump to the rooms of your house. It includes supply runs, return air drops, plenums, boots, and registers. In Calabasas, where many homes sit on canyon lips above Mulholland Highway or along the ridgelines near Old Topanga Canyon Road, we pay particular attention to sealing the return side tight. Santa Ana winds push particulates into return intakes, and any gap in the return plumbing pulls in dusty attic air every time the blower spins up. A typical HVAC duct install or major repair in Calabasas runs $1,800 to $6,500, with full multi-zone systems in larger homes going higher.
Air Handler and Plenum Sealing
The air handler is the box where the blower and coil live. The plenums are the metal or fiberboard boxes that connect it to the duct runs. Low-humidity summer heat in Calabasas shrinks the mastic seals on these connections over time, opening gaps that pull unconditioned attic air into your system. We reseal plenums and air handler cabinets with code-approved sealant and rewrap any insulation that has slipped.
Return Air Upgrades
Many 1980s and 1990s Calabasas homes were built with undersized return air paths. That means the system starves for air, the blower works harder, and rooms never reach set temperature. We add return drops or enlarge existing ones to match the system’s CFM requirements. It’s a fix that changes how the whole house feels, especially upstairs.
Trusted Brands We Service in Calabasas
We stock replacement parts and common duct sizes for the brands Calabasas homes actually use, which means faster turnaround when your repair can’t wait. Our crews work with professional-grade equipment from Nikro and Rotobrush, and we specify air-quality components from Honeywell, Aprilaire, and Abatement Technologies when a repair calls for filtration upgrades. For Calabasas homeowners dealing with post-Woolsey ash or chronic canyon dust, a Honeywell media filter or Aprilaire cabinet installed at the air handler makes a measurable difference in how much particulate reaches your living space. We typically carry these parts on the truck, so the repair and the upgrade happen in the same visit.
Common Air Duct Repair Problems We See in Calabasas Homes
- Collapsed 1980s – 90s flex duct. Original flexible ductwork in The Oaks at Calabasas and other gated communities from that era has become brittle. When it collapses near a joist or tears at a connection, that zone gets almost no airflow and particulates settle in the dead space.
- Woolsey Fire ash still inside return plenums. Homes that were occupied during the November 2018 fire often ran their HVAC systems as the smoke front arrived. The gray-black ash deposited inside return plenums never gets addressed by filter changes, and every heating or cooling cycle redistributes a little of it through the house.
- Seal failure from Santa Ana season. Canyon corridors along Las Virgenes Road funnel wind-driven chaparral dust into return air intakes each fall. Combined with low-humidity summer heat shrinking mastic seals, the gap at the air handler starts pulling dusty attic air directly into the blower.
- Undersized returns on multi-zone systems. Large Calabasas homes with two or three zones were often built with return air that couldn’t keep up with the supply side. The result is weak airflow in the farthest rooms, a blower that short-cycles, and higher utility bills for air that never reaches the thermostat setting.
Pricing for Air Duct Repair in Calabasas, CA
Air duct repair in Calabasas generally runs from $350 for a single sealed connection or register boot up to $1,800 for a collapsed run replacement with source removal. Partial duct replacement on a zone of a large home starts around $1,200 and climbs with the number of runs. Full HVAC duct installation in a 5,000-square-foot Calabasas home is typically $6,500 to $9,000, and we quote it as one flat price per system before any work begins. No per-vent pricing. No surprise invoice at the end. Call (980) 447-2498 for a free estimate, and we’ll put the number in writing before the first tool comes off the truck.
We Also Serve Cities Near Calabasas
Our crews working from Calabasas also cover Topanga, Agoura Hills, Oak Park, and Westlake Village. If you’re just over the line in any of those communities, you get the same Air Duct Repair service, the same written pricing, and the same verified technician standard. Many of our Calabasas customers call us because a neighbor in Topanga or Oak Park recommended the work. To see more about what we do across the area, visit our Air Duct Repair in Calabasas page.
Serving Calabasas, CA - Our Local Coverage Area
We’re based in the Calabasas 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 About Air Duct Repair in Calabasas
You check the return plenum. We remove the filter, open the access panel, and look inside with a camera. If the surfaces are coated in gray-black residue – and on homes along Mulholland Highway and the western hillsides that were occupied during the November 2018 fire, it’s common – that’s combustion ash from the Woolsey period. It sits there because standard filter changes only trap what passes through the filter, not what settled inside the plenum when the system ran during the smoke event. Source removal under negative pressure removes it. A new filter won’t. Call (980) 447-2498 and we’ll inspect yours.
That depends on what the camera shows. If the outer jacket is intact and the inner liner is smooth, targeted repair – resealing connections and replacing any crushed sections – is a reasonable fix that runs $350 to $1,800. If the flex has become brittle across multiple runs, tears easily at touch, or shows signs of mold from years of condensation in the canyon’s winter damp, replacement is the honest answer. We’ll show you the camera footage before we quote anything, and the price is written before work starts.
Source removal cleans the ducts themselves under negative pressure, not just the register openings. In a Calabasas canyon home, the problem is often ash and dust settled deep inside return plenums and supply runs – material a register-level vacuum never touches. Negative-pressure extraction pulls the contamination from the entire duct path while the blower recirculates contained air. That’s the difference between cleaning what you can see and cleaning what you’re actually breathing. For post-Woolsey homes, it’s the only method that addresses the full load.
Yes. We seal plenums and air handler cabinets on multi-zone systems regularly. The job involves cleaning the connection surfaces, applying mastic sealant, and rewrapping insulation where heat has degraded it. In Calabasas, seal failure is common on homes that sit on ridgelines where Santa Ana winds drive dust into returns and summer heat shrinks the original mastic. A properly sealed air handler stops that infiltration and usually improves airflow to the farthest rooms of the house.
A repair in Calabasas should follow SMACNA standards for duct construction and sealing, and the same principles apply to residential work: mastic and UL-listed tape on all seams, proper support straps every four to five feet, and correct sizing for CFM load. We work to those standards without exception, and the repair is covered by our written guarantee for 365 days. If a covered repair fails, we return at no charge – that’s the 365-Day Done Right Promise. Call (980) 447-2498 for an exact quote. Estimates are free.
Written by Marcus Veale, Owner at Linden Air Duct Cleaning, serving Calabasas since the Threshold Group’s founding in 2004.