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 Charleston
Air duct repair in Charleston, SC typically runs $300 – $900 for the kinds of failures we see most often here: separated crawl-space flex runs, crushed or water-damaged sections, and leaky plenum connections on retrofitted historic homes. Most repairs are done the same day our tech reaches your house. If you’re noticing weak airflow from upstairs registers, musty smells when the AC kicks on, or dust accumulating on furniture days after cleaning, the problem is rarely the unit itself. It’s usually the ductwork. Call (980) 447-2498 and we’ll send a technician who knows Charleston’s housing stock the way a local should.
Our crews work the peninsula, West Ashley, Mount Pleasant, James Island, and Summerville every week. We know what tidal flooding does to crawl-space duct runs off Folly Road, and we know how pre-war single houses on streets south of Broad were retrofitted for central air in ways that still cause problems today. That local knowledge changes how we diagnose a repair.
Why Linden Air Duct Cleaning Is Charleston’s Preferred Air Duct Repair Company
Charleston homeowners call us because our techs arrive with a name and a face. Before any visit, you get the technician’s name and photo sent to you. At the door, they show a photo ID badge. Every one of them is background-checked and identity-verified under The Threshold Standard, which has been our operating rule since 2004, when the company was founded as part of the Threshold Group family. Marcus Veale leads our team, and the standard he enforces is simple: prove who you are before you step inside.
Charleston customers also get a written price before any work begins. Not an estimate range. Not a verbal ballpark. A written price, on paper, before we touch a single duct. And every repair carries our 365-Day Done Right Promise in writing. If a covered repair fails within a year, we return and make it right at no charge. That’s not a promotional offer. It’s how we’ve operated since day one.
Our response time to Charleston neighborhoods is typically same-day or next-day depending on the schedule. And when you call, a live person answers. Twenty-four hours a day, seven days a week. No voicemail loops, no callback queues. That matters at 9 p.m. when your AC is blowing warm air through a duct that just separated under the house.
Ductwork Installation in Charleston
Ductwork installation in Charleston means replacing runs that are beyond repair. We see this most often in West Ashley ranch homes and Mount Pleasant subdivisions where original flex duct from the 1980s and 1990s has sagged, torn, or been sitting in crawl-space moisture for decades. A full ductwork installation for a typical Charleston home runs $2,500 – $6,000 depending on square footage, number of runs, and access. We install hard pipe where the crawl space allows, and insulated flex where retrofitted chases leave no alternative. Everything is sealed to NADCA standards, not just taped.
When a Charleston homeowner needs new ductwork, it’s usually after a camera inspection shows more damaged sections than good ones. We don’t recommend replacement lightly. If two-thirds of your runs are crushed, rusted, or flooded with silt from Hurricane Matthew-era water, patching them back together makes no sense.
When Replacement Beats Repair
Historic homes retrofitted through closet chases and wall cavities often have duct layouts that never worked well. If you’re losing conditioned air into wall cavities before it reaches a register, replacement with properly sized hard pipe is frequently the real fix. We show you the camera footage before we recommend it.
What Installation Covers Here
New supply and return runs, sealed plenum connections, insulation where humidity demands it, and a written guarantee on the entire job. In Charleston’s climate, we spec insulation on every exterior-facing run. Uninsulated flex sweats for nine months a year here and feeds mold at the plenum connection.
HVAC Duct Installation in Charleston
HVAC duct installation in Charleston often comes down to correcting what previous retrofits got wrong. Pre-Civil War single houses and antebellum row homes were never designed for central air. Their systems were shoehorned through existing wall cavities, closet chases, and tight interstitial spaces, producing non-standard layouts with excessive bends and dead-air zones that accumulate particulates faster than purpose-built systems ever would. A full HVAC duct installation for these homes runs $3,500 – $7,000 because access is difficult and every run is custom-fitted.
We approach HVAC duct installation differently in Charleston than in cities with newer housing stock. Here, the job is as much about correcting airflow physics as it is about swapping material. We calculate static pressure, verify each register is actually connected to a run, and seal every joint so conditioned air reaches the rooms it’s supposed to.
Retrofit Challenges in Historic Homes
On the lower peninsula, there are walls we cannot open and chases we cannot widen. That’s where experience with Charleston’s building stock matters. We’ve run hard pipe through spaces other companies said needed demolition. It’s slower work, but it respects the house.
Sealing Work That Comes With It
After installation, we seal every connection with mastic, not duct tape. In Charleston’s humidity, tape fails within months. Mastic holds. And we test airflow room by room before we leave, so you can feel the difference the same day.
Trusted Brands We Service in Charleston
We work with residential and light-commercial HVAC systems across Charleston, and we stock parts for most major brands so Charleston customers aren’t waiting on a shipment from Charlotte when a repair is urgent. Our equipment includes professional-grade negative-pressure extraction machines from Nikro and Rotobrush, which matters when we’re clearing flood silt or mold from existing ducts before sealing or replacing adjacent sections. For air-quality work tied to duct repair, we use products from Honeywell, Aprilaire, and Abatement Technologies where the job calls for it. If your Charleston home has a specific brand of HVAC equipment, give us a call and we’ll tell you directly whether we have what’s needed on the truck or can source it same week.
Common Air Duct Repair Problems We See in Charleston Homes
- Crawl-space flex separated at collars. Tidal flooding and saturated soil in Charleston shift duct runs so joints pull apart. Supply air dumps into the crawl space or wall cavity, and the homeowner just feels weak airflow with no visible cause.
- Uninsulated flex sweating year-round. Charleston’s humidity stays above 70% most months, and AC runs about nine months annually. Bare flex in a warm crawl space condenses constantly, feeding mold right at the plenum connection.
- Post-flood silt packed inside sealed duct. After events like Hurricane Matthew, peninsula and West Ashley homes had crawl-space duct runs submerged. Silt dried inside sealed flex, hidden for months until musty odors or respiratory irritation surfaced.
- Crushed runs from soil movement. Because most older Charleston peninsula and West Ashley homes route ductwork through crawl spaces sitting on one of the highest water tables on the East Coast, our techs routinely pull crushed flex that was never crushed by a person. Flood saturation did it, a failure mode inland cities 60 miles away simply don’t have.
Pricing for Air Duct Repair in Charleston, SC
Here are honest numbers for what we charge in the Charleston market. Reconnecting a separated flex run runs $250 – $450. Replacing a crushed 20-to-30-foot section of insulated flex runs $350 – $700. Sealing plenum connections and fixing air handler leaks runs $200 – $500. A full ductwork installation or HVAC duct installation for a typical Charleston home falls between $2,500 and $7,000 depending on square footage, access, and whether we’re working in a 1960s West Ashley ranch or a pre-war single house south of Broad. Call (980) 447-2498 for a free estimate. The price we give you is in writing before any work begins, and it doesn’t change at the end of the job.
We Also Serve Cities Near Charleston
Beyond our regular work across Air Duct Repair in Charleston, our crews also take jobs in Myrtle Beach and the surrounding Grand Strand area. If you’re a homeowner in Myrtle Beach dealing with damp ductwork or flood-related damage, you get the same written pricing, the same 365-Day Done Right Promise, and the same verified technician protocol. Give us a call and ask.
Serving Charleston, SC - Our Local Coverage Area
We’re based in the Charleston 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 Charleston
Yes. In Charleston, cleaning alone often misses the real problem. When humidity stays above 70% and AC runs nine months a year, condensation forms inside uninsulated flex and at plenum connections, feeding mold that returns after a cleaning unless the duct is sealed, insulated, or replaced. A repair addresses the moisture and airflow; Dryer Vent Cleaning - Charleston just removes what the moisture already grew. Call (980) 447-2498 if your ducts were cleaned and the musty smell came back within six months. That’s usually a repair issue, not a cleanliness issue.
We run a camera inspection through your duct runs and look for dried silt, standing water stains, separated collars, and crushed sections. After Hurricane Matthew, peninsula and West Ashley homes commonly had crawl-space duct runs packed with dried silt that homeowners only noticed months later when musty odors or respiratory symptoms appeared. The contamination was hidden inside sealed flex duct, and the only way to confirm it is with a camera. Call (980) 447-2498 to schedule one. You see the footage yourself before any repair is recommended.
In most cases, yes. We’ve repaired and replaced duct runs in pre-Civil War single houses off streets like Legare Street without opening a single wall. On one job, our crew ran a camera inspection and found a 20-foot uninsulated flex run in the closet chase that had separated at a collar behind the air handler, dumping half the supply air into the wall cavity. We reconnected and sealed the joint, replaced the crushed section with hard pipe, and the homeowner’s second-floor registers finally moved air. That was a repair, not a cleaning, and it solved a problem three other companies had quoted as a full replacement. Call (980) 447-2498 and we’ll tell you honestly whether your house can be fixed without demolition.
We use professional-grade equipment from Nikro and Rotobrush for extraction and cleaning work, and air-quality products from Honeywell, Aprilaire, and Abatement Technologies where the repair calls for them. For sealing, we use mastic, not tape, because Charleston’s humidity breaks tape down within months. The specific materials depend on the job, and we’re happy to walk you through exactly what goes into your house before we install it. Call (980) 447-2498 for details.
We seal to NADCA standards. Reconnecting a run without properly sealing the joint is how you end up with the same leak six months later. That’s what our Air Duct Repair team does on every job: mastic-seal every connection, test airflow room by room, and document the work with before-and-after photos. If a covered repair fails within 365 days, we come back at no charge. That guarantee is written on every invoice. Call (980) 447-2498 to get a repair scheduled or to ask a question about your specific system.
Written by Marcus Veale, Owner at Linden Air Duct Cleaning, serving Charleston since 2004.