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.
Fast, Reliable Air Duct Repair Across Alameda
Air duct repair in Alameda typically runs $275 – $650 for a focused fix like reconnecting a disconnected run or sealing leaky joints, while full replacement of damaged sections can range from $850 – $2,400 depending on access and duct length. Most repairs on the island are done in a single visit, though homes with crawlspace access issues or asbestos-wrapped ducts may need a second trip. If you’re noticing rooms that never heat or cool properly, dust settling back on furniture within days of cleaning, or musty air when the system kicks on, call Linden Air Duct San Francisco at (951) 527-6259. We know Alameda’s older housing stock better than most, and we’ll tell you exactly what’s wrong before any work begins.
Why Linden Air Duct San Francisco Is Alameda’s Preferred Air Duct Repair Company
Alameda’s housing stock is not like the rest of the East Bay. Our crews work in Victorians near the Gold Coast, Craftsman bungalows around Webster Street, and converted military housing near the old Naval Air Station on the island’s east end. That range matters because each era of Alameda home fails differently, and a tech who only knows suburban tract houses will misdiagnose the problem. We don’t.
Every tech who shows up in Alameda has passed a background check and identity verification under the Threshold Standard. Before the visit, you get the technician’s name and photo. At the door, they show a photo ID badge and arrive in a marked, clean uniform. Marcus Veale leads our team, and he holds every job to the same standard: written price before work starts, written guarantee on every repair, and a free second visit if a covered repair doesn’t hold.
Since 2004, we’ve worked as part of the Threshold Group family. That’s two decades of showing up, doing the work right, and putting it in writing. Alameda homeowners call us because they know exactly who’s coming and exactly what they’ll pay.
Styles & brands we work with
HVAC Duct Installation in Alameda
HVAC Duct Installation in Alameda usually means adding or replacing duct runs in homes where the original forced-air retrofit was never done properly to begin with. We see this most often in pre-1940 houses where someone in the 1970s or 80s squeezed flexible duct through foundation vents and called it a day. A proper installation involves sizing the duct to the room’s airflow needs, sealing every joint with mastic, and supporting the run so it can’t sag or pull apart. In Alameda, expect to pay $1,200 – $3,800 for a typical installation project, depending on how much of the system needs new ductwork and whether we’re working in a crawlspace, basement, or attic.
New Runs for Additions and Conversions
Many Alameda homeowners have finished attics, converted garages, or added rooms over the years. Those spaces often get no dedicated ductwork, leaving them perpetually cold in the summer fog or stuffy in fall heat. We design and install new supply and return runs that tie into the existing system without overloading it.
Repairing Failed Retrofits
When a retrofit was done poorly, the fix is usually a full replacement of the worst sections. We remove crushed flex duct, install properly sized rigid or semi-rigid duct, and seal everything with mastic, not tape. The result is quieter airflow and even temperatures.
Air Duct Replacement in Alameda
Air Duct Replacement in Alameda often means removing original unlined metal duct from a 1920s bungalow or replacing corroded runs eaten through by bay air. Salt-laden marine air from the bay and the Port of Oakland accelerates corrosion at duct joints, especially in crawlspaces. Once pinhole leaks develop, the system loses negative pressure, meaning dust and crawlspace air get pulled into the airstream. Replacement typically runs $850 – $2,400 in Alameda, with the final number tied to how much duct is failing and whether access is through a standing crawlspace or a tight 18-inch foundation gap.
Replacing Corroded and Disconnected Runs
We use galvanized steel or reinforced flex duct rated for our coastal conditions. Every replacement includes sealed joints, proper support, and a pressure test to confirm the system holds air before we leave.
Filter Access and Air Handler Improvements
Many Alameda retrofits buried the air handler where nobody can reach the filter. During a replacement, we often add a filter access door or relocate the filter slot so you can actually change it. This single change extends the life of the equipment and keeps repaired ducts clean longer.
Trusted Brands We Service in Alameda
We work on systems built around Honeywell, Aprilaire, and Abatement Technologies air-quality equipment, and our repair materials include duct rated for coastal conditions. When a repair calls for a specific part, we don’t order it blind. We stock the common fittings, grilles, and sealants for Alameda’s older homes, which means less waiting and fewer return trips. Our extraction equipment from Rotobrush and Nikro lets us pull debris out cleanly after a repair, so you’re not left with construction dust blowing through the living room. Marcus Veale’s standard is simple: use trade-trusted gear and parts, install them to NADCA standards, and stand behind the work in writing.
See the difference
Before
After
Before
After
Before
AfterCommon Air Duct Repair Problems We See in Alameda Homes
- Disconnected supply runs in 1920s crawlspaces. Original floor registers often have ducts that pulled away decades ago. The air handler is blowing conditioned air into the dirt while the living room gets nothing. We reconnect, seal with mastic, and add support so it stays connected.
- Crushed flex duct in post-war conversions near the old Naval Air Station. Sharp angles and dead-end branches trap debris and cut airflow. Some of these runs carry construction dust and paint overspray from renovations done thirty years ago. We replace them and restore proper airflow.
- Corroded joints from salt-laden bay air. Fog and marine air keep ducts slightly damp much of the year. Pinhole leaks develop at seams, especially in crawlspaces, and the system loses suction. We pressure-test, locate the leaks, and seal or replace the affected sections.
- Asbestos-wrapped ducts in pre-1940 homes. Some original gravity heating ducts have asbestos insulation. We do not disturb those materials. We inspect carefully and either seal a safe repair in place or refer you to a certified abatement specialist before we touch the duct.
Pricing for Air Duct Repair in Alameda, CA
A focused air duct repair in Alameda, like reconnecting one disconnected register run, typically costs $275 – $450. Sealing multiple leaky joints with mastic and adding support to sagging sections runs $400 – $650. If we’re replacing crushed or corroded duct sections, expect $850 – $2,400, depending on length and crawlspace access. Full HVAC duct installation for a conversion or addition lands between $1,200 and $3,800. What changes the price: how much duct is failing, whether the crawlspace is 18 inches or 3 feet, and whether asbestos wrapping is present. Our written estimate is free, and the price we quote is the price you pay. Call (951) 527-6259 to schedule a look.
We Also Serve Cities Near Alameda
Linden Air Duct San Francisco handles Air Duct Repair across Oakland, Piedmont, Berkeley, and San Leandro. If you own a home in one of those cities and you’re seeing the same old-house duct issues we fix here in Alameda, call (951) 527-6259 and we’ll get you on the schedule. Dispatch and scheduling are coordinated from our San Francisco Bay Area office, and our crews serve Alameda locally.
Serving Alameda, CA - Our Local Coverage Area
We’re based in the Alameda 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 Alameda
Because the ducts were retrofitted into homes never built for forced air. Most pre-1940 Alameda houses started with gravity heating or no central heat at all. When forced-air systems were added, runs were squeezed into crawlspaces and basements designed for plumbing, not ductwork. Over decades, the joints pulled apart, supports failed, and floor-register connections separated. We find disconnected runs on roughly half the older Alameda homes we inspect. The fix is reconnection with mastic sealing, but if the run is crushed or corroded too, replacement is the right call. Call (951) 527-6259 for an inspection and a written quote.
Usually yes, as long as the metal is intact. Original unlined metal ducts in Alameda Victorians often have surface rust but are structurally sound. If the problem is leaking joints or a disconnected floor register, we can seal and reconnect using mastic, not duct tape, and the repair will hold. If corrosion has eaten through the metal, or if the duct is sized too small for the blower, patching won’t help and replacement makes more sense. We’ll show you photos of what we find and explain the choice. Estimates are free at (951) 527-6259.
Salt-laden fog accelerates corrosion at duct joints and seams, especially in crawlspaces where moisture sits. Pinhole leaks form, the system loses negative pressure, and the blower pulls in crawlspace air, dust, and sometimes pest droppings. Any repair in Alameda should include checking adjacent joints for the same corrosion, not just the spot that failed. We do a pressure test after every repair to confirm the system holds air. If the ducts are too far gone, we’ll recommend replacement and quote it honestly.
Crushed or kinked flex duct. In homes near the former Naval Air Station, post-war conversions were often done fast, with sharp angles, undersized flex, and dead-end branches. Kinked flex can cut airflow by half or more, and those dead ends trap construction debris, paint overspray, and decades of dust. We open the worst sections, replace them with properly sized duct, and seal every joint. If you’re in that part of the island and certain rooms never cool properly, this is usually why. Call (951) 527-6259 and we’ll find it.
Repair first, then clean. If the ducts are disconnected or leaking, cleaning first just pulls more dust and crawlspace air into the system after the cleaning crew leaves. We repair, seal, and pressure-test first. Then we clean with negative-pressure extraction, so the debris created by the repair itself gets pulled out with everything else. It’s the order we use on every Alameda job, and it’s why our repairs hold. Call (951) 527-6259 to schedule the inspection and get a written price before any work starts.
Written by Marcus Veale, Owner at Linden Air Duct San Francisco, serving Alameda since 2004.