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 San Leandro
Air duct repair in San Leandro usually means one of two things: a section of duct in your crawl space has come apart or been crushed, or the original 1950s metal is leaking so badly that cleaning alone won’t fix your air quality. Most repairs in this city run between $350 and $1,200 depending on how much duct needs rebuilding. If you’re noticing dust blowing from vents, rooms that never heat or cool properly, or a musty smell when the furnace kicks on, call us at (951) 527-6259 and we’ll send a background-checked technician to inspect before quoting a written price.
Why Linden Air Duct San Francisco Is San Leandro’s Preferred Air Duct Repair Company
Since 2004, our crews have worked inside the crawl spaces of San Leandro’s Broadmoor, Estudillo Estates, and Washington Manor homes. That matters because most of this city’s ductwork is original to houses built between 1940 and 1975. We know which runs sag, where the galvanized seams pop, and how low the crawl space clearance gets before a repair becomes a struggle. Our customers in San Leandro routinely tell us the same thing: the tech showed up on time, showed a photo ID at the door, and explained the problem before any work started.
Every technician who knocks on your door is background-checked, identity-verified, and arrives in a clean marked uniform. Before the visit, you’ll receive the tech’s name and photo. At the door, they’ll present a photo ID badge. That’s the Threshold Standard, and it’s how we’ve operated as part of the Threshold Group family for more than two decades. We don’t send subcontractors. We send our own people, trained on Rotobrush and Nikro equipment, with written pricing agreed before any repair begins.
Led by Marcus Veale, our team has repaired enough original San Leandro ductwork to know that a sagging return in a 1963 ranch on Estudillo Avenue behaves differently than a disconnected supply run in a Broadmoor split-level. That local knowledge is why homeowners here call us back when the next project comes up.
Styles & brands we work with
Ductwork Installation in San Leandro
Ductwork installation in San Leandro is often the right call when the existing system has failed beyond a simple patch. A full or partial new duct run typically costs between $1,800 and $4,500 here, depending on the home’s square footage, crawl space access, and whether we’re replacing the entire system or just the failed sections. We quote one written price per system before work starts, so you’ll never see an invoice that grew after the fact.
Replacing Failed Runs in Low-Clearance Crawls
Many San Leandro homes have crawl spaces under 24 inches high, which makes ductwork installation a slower, more careful job. Our crew works in these tight spaces with sealed 26-gauge pipe and proper hangers, because a duct that sags after installation will fail the same way the original one did. The difference is we support the run correctly and seal every joint with mastic, not tape.
When to Add a Filter Cabinet During Installation
If your San Leandro system was built without a filter cabinet at the air handler, a ductwork installation is the right time to add one. We frequently install MERV-13 filter cabinets during repairs so that once the new ducts are in, the air moving through them actually gets filtered before it recirculates. For older homes near the 880 corridor, this is one of the most effective improvements we make.
HVAC Duct Installation in San Leandro
HVAC duct installation in San Leandro usually refers to adding or replacing the full supply and return networks tied to a central furnace or heat pump. A complete installation for a typical 1,200 to 1,800 square foot San Leandro rancher generally runs $4,000 to $7,500. The wide range reflects what we find once we’re inside: original duct runs that need complete removal, add-on room ducts that have to be re-routed, or asbestos-wrap remediation in a handful of older homes.
Installing Supply and Return Runs for Add-On Rooms
Many San Leandro homes gained extra bedrooms or family rooms in the 1970s and 1980s, and those additions often came with undersized flex duct teed off the main trunk. The result is a blower motor working against high static pressure, which shortens its life. Our HVAC duct installation work re-routes those runs with properly sized hard pipe and dampers so each room gets the airflow it was supposed to have.
Heat Pump Retrofits Need Sealed Ducts
If you’re planning a heat pump conversion in an older San Leandro home, your ductwork is the first thing to evaluate. Heat pumps run lower air temperatures for longer cycles, so leaking or undersized ducts hurt performance more than they would with a gas furnace. We inspect the full run with a camera, measure static pressure, and then quote the work needed to make the new system actually perform.
Trusted Brands We Service in San Leandro
We stock replacement parts and materials from Aprilaire for filter cabinets and ventilation accessories, and we use Rotobrush and Nikro equipment for inspection and cleaning work alongside our repairs. When a San Leandro home needs a better filtration setup or a sealed duct run after we repair the damage, we don’t have to order parts from a distant warehouse and make you wait. We carry what’s needed for most common repair jobs on our trucks, and our relationship with Abatement Technologies means we can source air quality products quickly when a job calls for something more specific. That means less downtime for your system and a faster path from diagnosis to a completed repair.
Common Air Duct Repair Problems We See in San Leandro Homes
- Seams popping apart in original galvanized duct. Seven decades of thermal cycling and seismic settling work the metal joints loose in San Leandro’s low crawl spaces. Once a seam separates, crawl space air gets pulled directly into the bedrooms, bypassing your filter entirely.
- Crushed or sagging sections under the house. Ducts run through low-profile crawl spaces get bumped, sat on, or just sag over time. A sagging return run pulls in moisture from the soil, which then rusts the duct wall and feeds mold growth.
- Greasy black residue from the 880 corridor and old rail lines. Homes in Broadmoor and Estudillo Estates often show a sooty buildup inside ducts that no retail filter was ever going to stop. That residue is a legacy of open windows and industrial particulates from decades of rail and truck traffic.
- Add-on room flex runs choking the system. DIY and low-bid additions often left homeowners with undersized flex duct pinched into tight spaces. The blower fights high static pressure, rooms stay cold in winter, and the motor dies years early.
See the difference
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AfterPricing for Air Duct Repair in San Leandro, CA
A targeted air duct repair in San Leandro, where we rebuild a disconnected or crushed section and seal the surrounding joints, typically runs $350 to $1,200. A partial duct replacement covering one branch of your system lands between $1,500 and $3,000. Full HVAC duct installation for a standard San Leandro rancher runs $4,000 to $7,500 depending on crawl space clearance, number of runs, and whether old duct wrap needs removal. We provide a written price before any work begins, and every repair includes a written guarantee. If a covered repair fails within 365 days, we return at no charge under the 365-Day Done Right Promise. Call (951) 527-6259 for a free estimate and a written quote.
We Also Serve Cities Near San Leandro
Our crews regularly run repair calls from San Leandro into the surrounding East Bay. Homeowners in Castro Valley, Oakland, Alameda, and Piedmont call us for the same reason San Leandro does: written pricing, background-checked techs, and a repair that holds. Dispatch is coordinated from our San Francisco Bay Area office, and we schedule calls across the area daily.
Serving San Leandro, CA - Our Local Coverage Area
We’re based in the San Leandro 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 San Leandro
If you see dust blowing from vents right after a professional cleaning, smell a musty odor that returns within weeks, or have rooms that never reach the thermostat setting, the problem is usually a disconnected or crushed duct, not dirt. A camera inspection through the duct run shows us exactly what’s happening. We don’t recommend cleaning alone when a section has separated in the crawl space because the moment we’re done, the gap keeps pulling in unfiltered air. Call (951) 527-6259 and we’ll inspect before recommending either service.
That black coating is decades of sooty particulate from San Leandro’s industrial corridors along the railroad and the 880, pulled in when windows were open before air conditioning was standard. It settled deep in the duct system and bonded to the metal over time, and no standard furnace filter has ever been fine enough to stop that level of particulate. Our repair work often pairs duct replacement or sealing with a MERV-13 filter cabinet installation so the system actually captures what’s still moving through the air. The camera inspection before any cleaning shows the difference between surface rust, mold, and this industrial residue.
Low clearance makes the work slower and more physically demanding, but it does not prevent a proper repair when the crew has the right equipment and experience. Our technicians work in San Leandro crawl spaces under 24 inches regularly, where they re-hang sagging runs, seal separated couplings, and replace crushed sections using rigid pipe and proper support. What changes is the labor time, not the outcome. The written estimate accounts for your crawl space’s specific clearance before we start.
Yes, especially in the western and central neighborhoods where fog and cool air persist until late morning. Uninsulated metal ducts sitting in a damp crawl space develop condensation on the outside, and where moisture builds inside, mold spores have exactly what they need. Standard duct cleaning removes the visible growth, but without sealing the leaks or insulating the run, the condensation returns. Repair and cleaning together solve the underlying moisture problem. We’ll show you photos from the camera so you can see what’s actually happening in your system.
In most San Leandro homes from the 1960s, replacing the worst sections and sealing the rest is enough, and it costs less than a full tear-out. Heat pumps need sealed ducts with adequate diameter to work efficiently, so we measure static pressure and inspect every run with a camera before recommending repair versus full replacement. A full HVAC duct installation in a home that old typically runs $4,000 to $7,500. A targeted repair of failed sections is usually $1,200 to $3,000. The right answer comes from the inspection, not a guess, and we’ll give you the written price for both options before any work begins.
Call Linden Air Duct San Francisco for Air Duct Repair in San Leandro
When your San Leandro home’s ducts are leaking, separated, or simply failing after decades of marine fog and seismic settling, the repair has to be done right the first time. A patch that lasts one season isn’t a repair. We rebuild the failed sections, seal the surrounding joints, and back the work in writing with a 365-day guarantee. The tech’s name and photo arrive before the visit. The price is on paper before any work starts. And a live person answers when you call, any time of day. For a free estimate on air duct repair in San Leandro, call (951) 527-6259 today.
Written by Marcus Veale, Owner at Linden Air Duct San Francisco, serving San Leandro since 2004.