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.
Fast, Reliable Air Duct Repair Across Highland
Air duct repair in Highland usually runs between $220 and $680 depending on whether we’re sealing a disconnected joint, replacing a collapsed flex run, or patching corroded metal duct. Most repairs at Highland homes are done in a single visit, and we cover the work with a written guarantee. If your system is pushing dust into the house or half your rooms aren’t getting airflow, call us at (980) 447-2498. We work throughout Highland from the Base Line corridor up to the neighborhoods closest to the national forest.
Highland homes have a problem that lower-elevation Inland Empire cities don’t share. The city sits directly at the base of the San Bernardino Mountains, and after a foothill fire, ash and combustion particulate get pulled through the filter and into the duct network even in homes where owners never smelled smoke. Why? Because the HVAC ran continuously with the windows shut during those events. That’s why Air Duct Repair here often means more than patching a hole. It means removing what the mountain sends down and then sealing the system so it stops coming back.
Our crews know the tract layouts in East Highlands, the older streets near the historic core, and the newer builds off Greenspot Road. We coordinate scheduling from our Inland Empire office, and when you book, you’ll get the name and photo of your technician before the visit. At the door, they’ll show a photo ID badge before stepping inside. That’s the Threshold Standard, and it applies to every job we do in Highland.
Why Linden Air Duct Cleaning Is Highland’s Preferred Air Duct Repair Company
Since 2004, we’ve worked inside Highland homes built during the big suburban push of the 1970s through 1990s. That matters because those homes share a common DNA: original flex duct runs that were never designed to last 40 years, attic spaces that bake all summer, and return systems that pull desert grit through every seam. We know what a collapsed flex run sounds like from the air handler side. We know what soot from a hillside burn looks like under a camera scope. That’s not knowledge you get from a general handyman service.
Highland customers repeatedly tell us two things on review calls: the price on the written quote matched the final invoice, and the tech showed ID at the door without being asked. Every repair includes a written price before any work begins, and every repair carries our 365-Day Done Right Promise. If a covered repair doesn’t hold, we come back at no charge. That’s not a promotional offer. It’s been our standard since we opened as part of the Threshold Group family.
Air Duct Replacement in Highland
Air Duct Replacement in Highland is what happens when a 1980s flex run has collapsed, split, or pulled away from the air handler to the point that sealing won’t save it. We cut out the failed section or the full run, depending on what the camera inspection shows, and install new duct that matches the system’s static pressure needs. Highland’s desert climate and wildfire exposure mean replacement crews here are often removing duct that’s been compromised by more than age. Ash, heat, and grit work together to eat through the outer jacket and inner liner. A full replacement for a typical single-run repair in Highland generally runs $350 to $680, while replacing multiple runs or a whole trunk line in larger homes can push toward $1,400.
Collapsed Flex Runs in Tract Homes
Highland’s 1970s and 1980s subdivisions were built fast, with flex duct snaked through hot attics and hung with plastic strapping. After decades of daytime attic temperatures above 130 degrees, the strapping fails, the flex sags, and the inner liner collapses inward. Airflow to the farthest bedrooms drops to almost nothing. We see this pattern constantly in the tracts north of Highland Avenue.
Corroded Metal Duct in Mid-Century Homes
Older homes near the historic center of Highland often have rigid metal duct that’s rusted at the seams from the valley’s humidity and particulate cycling. Those seams leak conditioned air into the attic and pull unfiltered outdoor air back in. In some cases, we can reseal the seams with mastic and metal tape. In others, full duct replacement is the only way to stop the bleed. You’ll see the camera footage before we make that call, so you’re not taking our word for it.
Ductwork Repair in Highland
Ductwork Repair in Highland usually means one of three jobs: reconnecting a joint that’s separated near the air handler, sealing leaks along a run that’s still structurally sound, or patching a puncture from a pest or a past contractor. These are the repairs that restore airflow and stop the system from pulling attic dust into the return side. Most ductwork repairs in Highland fall between $220 and $450 for a single issue, with sealing of multiple joints or longer runs coming in higher. We give you a written price before any work begins, and we don’t add line items after the fact.
Separated Joints and Disconnected Runs
The most common repair call we get in Highland is a system that’s running but not cooling one side of the house. That’s usually a duct that has pulled apart at a joint or come off a boot above a ceiling register. The fix sounds simple, and sometimes it is. But when a run has been disconnected for months, that open end has been sucking attic air, which means the whole section needs to be cleaned before we reconnect it. Otherwise you’re sealing the problem into the system.
Sealing Leaks That Don’t Show Up on the Thermostat
Not every leak is a visible gap. Highland’s particulate load, especially during Santa Ana wind events and fire season, works its way through pinholes and poorly taped joints. We find leaks with a pressure test or a camera scope, then seal them with mastic, not cheap duct tape. A properly sealed duct system means the air you paid to condition is arriving at the register, not leaking into the attic above your heads.
Trusted Brands We Service in Highland
We repair and maintain duct systems built on equipment from brands Highland homeowners actually have in their closets and attics: carriers, Rheem, Trane, and Goodman among them. Our crews run professional-grade extraction and sealing equipment from Rotobrush and Nikro, and we stock common parts for Highland’s housing stock so we’re not making you wait a week for a flex connector or a duct collar. For air-quality improvements tied to our repair work, we work with products from Honeywell, Aprilaire, and Guardsman. If your repair would benefit from a better filter cabinet or a higher-MERV upgrade, we’ll tell you what makes sense for your system and what doesn’t.
Common Air Duct Repair Problems We See in Highland Homes
- Collapsed original flex duct in 1970s – 1990s tracts. Decades of attic heat and desert grit cause the inner liner to fold inward, strangling airflow. This is the single most common repair we perform in Highland subdivisions built during the region’s expansion.
- Corroded seams in mid-century metal duct. Homes near Highland’s historic corridor often have rigid ducts that rust at the joints from the valley’s particulate and humidity cycles. The leaks pull attic air into the system year-round.
- Post-wildfire ash residue inside supply and return ducts. After a foothill burn above the northern neighborhoods, combustion particulate settles into the ductwork while residents run the AC with windows shut. The system keeps pushing that residue into living space until source removal is done.
- Separated joints near the air handler. The plenum connection is a common failure point in Highland because the air handler supports flex runs through a hot attic. Once the joint separates, the return side pulls unfiltered desert grit straight into the system.
Pricing for Air Duct Repair in Highland, CA
Expect to pay between $220 and $680 for most air duct repair jobs in Highland. A simple reconnection or single-joint seal starts around $220. Replacing a collapsed flex run typically lands between $350 and $680 depending on the length and accessibility. Full duct replacement in a larger Highland home can reach $1,400 or more. What moves the number: the number of runs affected, how much of the system was pulling attic air, and whether we need to clean the section before sealing it. We give you a written price before any work starts, and that price doesn’t change unless you approve a change in scope. Call (980) 447-2498 for a free estimate at your Highland home.
We Also Serve Cities Near Highland
If you’re outside Highland’s city limits, we regularly work in San Bernardino, Loma Linda, Redlands, and Mentone. The same pricing, the same written guarantee, and the same Threshold Standard apply wherever we go. When you call, just tell us which neighborhood you’re in and we’ll schedule you with a crew that knows the area.
Serving Highland, CA - Our Local Coverage Area
We’re based in the Highland 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 Highland
Because your HVAC system ran continuously during the fire event with the windows shut, and the filter only catches a fraction of combustion ash. The rest settles into the supply and return ducts, where it sits until the system pushes it back into your living space. You won’t necessarily smell it, but a camera scope will show it as a fine gray coating on the duct interior. Call (980) 447-2498 to schedule an inspection; if your ducts are clean, we’ll tell you that too.
It depends on what the camera inspection shows. If the outer jacket is intact and the inner liner hasn’t collapsed, we can usually repair and reseal the run for a few hundred dollars. If the flex has sagged in multiple places or split at a connection, replacement is the honest fix. In Highland’s climate, original 1980s flex that’s been in a hot attic for 40 years is often at the end of its life, and we’ll show you the footage before recommending replacement.
Because Highland sits directly below the San Bernardino National Forest, and Santa Ana winds funnel high-particulate desert air down from the passes while wildfire smoke pushes down from the foothills above. The valley’s inversion layer traps those particulates, and your HVAC pulls them straight into the ductwork. Lower-elevation cities don’t get the same concentrated dose from two directions. That’s why Highland homeowners often need source removal, not just cleaning.
First, our technician shows you a photo ID at the door; you already got their name and photo before the visit. Then we inspect the system with a camera scope to see exactly what’s failed. We give you a written price before any work begins. During the repair, we run negative-pressure extraction with HEPA filtration to capture loosened debris so it doesn’t end up in your living room. Afterward, we walk you through what was done and what the guarantee covers. Every repair includes our 365-Day Done Right Promise in writing.
We always check the filter during a repair and replace it if it’s clogged, which it usually is after a Highland fire season. For most systems here, a MERV 8 to MERV 11 filter makes sense; higher ratings can restrict airflow unless the system was designed for it. Given the particulate load from wildfire smoke and Santa Ana dust, we often recommend a media filter cabinet from Aprilaire or Honeywell. We’ll tell you what works with your specific system, not just sell you the highest number.
If your ducts are leaking, collapsed, or carrying ash from the last foothill burn, call Linden Air Duct Cleaning at (980) 447-2498. We’ll give you a written price before any work starts, send a technician whose name and photo you already have, and back the repair with a written 365-day guarantee. That’s how we’ve done it in Highland since 2004, and that’s how we’ll do it at your house.
Written by Marcus Veale, Owner at Linden Air Duct Cleaning, providing the Threshold Standard since 2004.




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