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 Moraga
Air duct repair in Moraga typically runs $450 – $1,800 depending on whether you’re sealing a section of leaking duct, replacing a crushed flex run, or rebuilding a rusted plenum. Most repairs in Moraga are completed same-day once we diagnose the problem, and every job gets a written price before any work begins. Our Air Duct Repair team knows Moraga’s housing stock well. If you’ve got a campfire smell that won’t go away, uneven room temperatures, or a duct that’s collapsed in your attic, call Linden Air Duct Cleaning at (980) 447-2498. We’ll tell you exactly what’s wrong, what it costs to fix, and how long it’ll take before we touch a single vent.
Why Linden Air Duct Cleaning Is Moraga’s Preferred Air Duct Repair Company
We’re not a franchise that parachuted into Lamorinda last year. Linden Air Duct Cleaning has served Bay Area homeowners since 2004 as part of the Threshold Group family, and our techs know the difference between a 1972 split-level off Moraga Road and a 1980s rancher near Camino Pablo. That matters when you’re diagnosing where a duct system is failing. Local homeowners tell us the same thing: they want to know who’s walking through the door. So before every visit, we send the tech’s name and photo to your phone. At the door, they show a photo ID badge. Every one of our technicians is background-checked and identity-verified under what we call the Threshold Standard. It’s not a marketing slogan. It’s a written protocol.
Reviews from Moraga customers repeatedly mention two things: the price didn’t change once we started, and the tech showed up wearing a clean, marked uniform and treated the house with care. We coordinate scheduling and dispatch from our San Francisco Bay Area office, and crews serve Moraga directly. When you call, a live person answers. Not a voicemail tree. Not a callback queue. A human being, any hour of the day.
One more thing worth saying plainly: our 365-Day Done Right Promise covers every repair in writing. If a covered repair doesn’t hold, we come back at no charge. That’s not a coupon. It’s the deal, every single time.
HVAC Duct Installation in Moraga
HVAC Duct Installation in Moraga means running new supply and return lines, typically when a section of existing duct is beyond repair. In a town where many homes were built between 1965 and 1985, we regularly install new duct runs after discovering the original fiberglass duct board has delaminated, or an early flex run has torn open in a hot attic. A partial HVAC duct installation in Moraga, like replacing two or three supply branches, typically runs $900 – $2,200. Whole-system installation ranges higher, depending on square footage, number of registers, and attic access.
When It Makes Sense to Install New Duct
Not every damaged duct needs replacing. But when a liner has degraded to the point that fibers are entering the air stream, or when a flex run has separated at the junction and is pumping conditioned air into the attic, patching won’t solve the underlying problem. In these cases, we recommend installing new duct for that section and leaving the rest of the system intact. You get a written price for the exact length and type of duct before we start.
What We Install
We install R-6 and R-8 flex duct, rigid galvanized pipe where appropriate, and properly sealed and masticated joints at every connection. For Moraga attics that hit 120°F in summer, we recommend insulated flex duct over uninsulated runs. It reduces thermal loss and keeps the air you paid to cool from heating back up before it reaches the bedroom.
Air Duct Replacement in Moraga
Air Duct Replacement in Moraga is the bigger version of the same job: pulling out the old supply and return system entirely and putting in new. Most Moraga homes that need full replacement are older ranch and split-level properties where the original ductwork has been in service for 40 to 60 years. Homeowners usually call us after repeated problems: persistent musty odor, visible mold near registers, rooms that never warm up or cool down, or a blower motor that works constantly but the house still feels stale. A full air duct replacement in Moraga typically runs $3,800 – $7,500 depending on the size of the home, the number of runs, and how much attic or crawlspace maneuvering the job requires.
Signs Replacement Is the Right Call
Cleaning can remove surface dust and debris. It cannot repair a crushed duct, a separated joint, or a liner that’s breaking down and shedding particles into the air you breathe. If our camera inspection shows liner delamination throughout the system, or if the ductwork has collapsed in multiple locations, replacement is usually the honest answer. We’ll show you the images from the inspection so you can see exactly what we’re seeing. No pressure. Just facts.
How the Job Works
We start with a full inspection, then give you a written price for the entire replacement before any work begins. The crew removes the old duct, seals off any openings, installs new duct sized to your system, and tests airflow before we leave. Every replacement is covered by our 365-Day Done Right Promise, and if a covered repair fails within that period, we return free of charge. Written guarantee. Every time.
Trusted Brands We Service in Moraga
We work with professional-grade equipment from Rotobrush and Nikro, and we’ve installed air-quality products from Aprilaire, Abatement Technologies, and Guardsman in Moraga homes. Why does that matter to you? Because the tools we use to inspect and clean your ducts are the tools that let us see what’s actually happening inside the system, not guess at it. We stock common repair parts and replacement duct materials for Moraga customers, which means we don’t have to order in basic supplies and push your job back a week. If you’ve got a different brand of equipment, that’s fine too. We service all major residential systems.
Common Air Duct Repair Problems We See in Moraga Homes
- Wildfire ash and fine particulates in the duct liner. Moraga’s valley bowl traps smoke from East Bay hill fires, and we see char buildup at supply registers in homes miles from the burn area. Ash settles on fiberglass duct board and creates an odor that resembles a campfire every time the system cycles on.
- Degraded original duct board from the 1960s through 1980s. Decades of heat cycling in hot attic spaces causes the liner to delaminate. Once the liner starts breaking down, cleaning won’t fix it. The material needs to be replaced or removed.
- Crushed or separated flex duct in long, branching hillside runs. Ranch and split-level homes on Moraga’s hillside lots often have duct work that runs for 40 feet or more through cramped attic spaces. A kink or separation at a junction can cut airflow to an entire wing of the house, and register-level cleaning won’t catch it.
- Oak pollen and eucalyptus debris packed into return air junctions. Moraga’s tree canopy produces heavy pollen loads in spring, and the return side of the system pulls those particles into the duct work. In older homes, we find accumulated layers of pollen and fine dust at junctions that haven’t been opened in decades.
Pricing for Air Duct Repair in Moraga, CA
Here’s what you can realistically expect to pay for air duct repair in Moraga: sealing a small section of duct runs $450 – $750; replacing a crushed flex run runs $600 – $1,100; repairing a damaged plenum runs $800 – $1,800; and replacing multiple runs in a large split-level home runs $2,000 – $4,200. What drives the price? How many runs are affected, how much attic or crawlspace access we have, and whether we’re dealing with rigid pipe or flex. You get a written price for the whole job before anything starts. Call (980) 447-2498 for a free estimate. No per-vent pricing games, no surprise invoice at the end.
We Also Serve Cities Near Moraga
Beyond Moraga, our crews regularly handle air duct repair jobs in Orinda, Walnut Creek, Lafayette, and Alamo. If you live near the Moraga-Orinda border or out toward the Alamo side of the valley, we’re familiar with those homes too. Same written pricing, same verified technicians.
Serving Moraga, CA - Our Local Coverage Area
We’re based in the Moraga 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 Moraga
Homes on unpaved roads or with long gravel driveways in Moraga should have their ducts cleaned every 2 to 3 years, not the 3 to 5 year interval common in flatter, paved East Bay suburbs. Road dust is finer and more abrasive than household dust, and it loads the return side of the system quickly. Add oak pollen and wildfire ash exposure, and the realistic interval for many Moraga properties is every 2 years. Call (980) 447-2498 and we’ll help you figure out the right schedule for your home, not a generic one-size-fits-all number.
It depends on the condition of the liner. If the original fiberglass duct board is intact, a thorough cleaning with negative-pressure extraction can remove decades of dust, pollen, and ash. If the liner has delaminated or is breaking down, cleaning won’t help; that material needs to be replaced. We run a camera inspection first and show you what we find, so you don’t pay for cleaning that won’t solve the problem. A written price for whichever path you need comes before any work starts.
Because the smoke isn’t coming through the filter; it’s already inside the duct system. After East Bay hill fires, Moraga’s valley bowl traps fine smoke and ash, and that material gets pulled into return ducts and settles on the liner. Every time your system cycles, the air passing over that residue picks up the odor and pushes it into your rooms. A standard filter change won’t touch it. The fix is source removal: pulling the contamination out of the duct itself, which is exactly what our HEPA filtration and negative-pressure extraction equipment is built for. Call (980) 447-2498 for a free inspection.
Yes, and it does so in two specific ways. Summer attics in Moraga regularly hit 120°F, and that heat cycling causes older flex duct and fiberglass duct board to expand and contract, which degrades liners over years. Winter valley fog pushes humidity into attic spaces, and that moisture gets absorbed by old liner material, creating conditions where mold can grow. The combination of hot, dry summers and damp, foggy winters puts real stress on 40 to 60-year-old duct work that was never designed for those extremes. That’s why we see more delamination and biological growth in Moraga than in flatland cities with more consistent climates.
Air duct cleaning removes what’s inside the ducts: dust, pollen, ash, pet dander, and debris. Air duct repair fixes the ducts themselves: sealing leaks, replacing crushed or separated runs, rebuilding a rusted plenum, or replacing sections of degraded liner. In Moraga homes, the two often go together. A system with a separated junction is also a system that’s pulled in dust and pests, so you may need both a repair and a cleaning. We’ll tell you what you actually need, not what’s easiest to sell. For an exact quote, call (980) 447-2498. Estimates are free.
Written by Marcus Veale, Owner at Linden Air Duct Cleaning, serving Moraga and the surrounding Lamorinda area since 2004.