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 Old Greenwich
Air duct repair in Old Greenwich almost always comes down to one question: can this duct be saved, or does it need to come out? The answer depends on moisture, age, and what the inside of the duct actually looks like under a camera. That’s the inspection we run on every job we take in Old Greenwich, because homes here sit on Long Island Sound and Greenwich Cove, where salt-laden humidity works on ductwork year-round in ways it never does five miles inland. If you’ve got a musty register, a collapsed flex run, or a storm-wetted crawl space, call (980) 447-2498 and we’ll walk you through what you’re looking at.
Why Linden Air Duct Cleaning Is Old Greenwich’s Preferred Air Duct Repair Company
We’ve been repairing ductwork in Old Greenwich long enough to know the difference between a duct that needs cleaning and a duct that needs to be replaced, and the difference is rarely visible from the register. Our crews work the streets off Shore Road, Sound Beach Avenue, and Oval Avenue every week, so we know what a pre-1960s colonial’s duct system looks like after thirty years of coastal air moving through it. The marine layer here keeps relative indoor humidity elevated through all four seasons, not just summer. That means biological growth and salt-particulate deposits inside ducts accumulate year-round, which is a different problem than what a homeowner in Cos Cob or Backcountry deals with.
Every Old Greenwich job gets a written price before any work begins. No exceptions. And every repair we make is covered by a written guarantee. If a covered repair fails, we come back at no charge. Those are standing commitments, not promotional language. We’ve operated this way since 2004 as part of the Threshold Group family, and we’ve kept it that way because Old Greenwich homeowners tend to read the fine print before letting anyone into their house. They should. When our technician arrives, you’ll already have their name and photo on your phone, and they’ll show a photo ID badge at the door. That’s the Threshold Standard, and it applies to every job in Old Greenwich.
Air Duct Replacement in Old Greenwich
Air Duct Replacement in Old Greenwich is the only correct fix when a duct has been structurally compromised by moisture, corrosion, or collapse, and in this village, moisture is usually the culprit. Coastal humidity wicks through vented crawl spaces and condenses inside uninsulated flex duct, which is exactly how supply-boot connections become colonized with mold within two or three years of a prior cleaning. A duct that looks clean on the outside can be shedding spores from the inside. If the sheet-metal trunk or branch fittings show pitting, or the flex liner has separated, cleaning won’t restore it. Replacement is the honest answer, and we’ll show you the camera footage that proves it.
What Replacement Involves
We remove the failed runs, inspect the remaining system, and install new flex or sheet-metal sections sized to your existing air handler. In Old Greenwich’s older homes, this often means re-sealing supply boots at the floor register and adding insulation where crawl-space humidity has saturated the original wrap. We document every step.
Cost Signals for Old Greenwich Homes
A partial flex-run replacement in a typical Old Greenwich colonial runs $450 to $900 per branch, depending on run length and accessibility. A full trunk-and-branch replacement in a larger pre-1960s home can run $3,800 to $7,200. We quote one flat price per system before work starts, so you know the number before the van pulls up.
Ductwork Repair in Old Greenwich
Ductwork Repair in Old Greenwich is what we recommend when the duct structure is still sound but the connections, seals, or insulation have failed. In homes near Greenwich Cove, the most common repair is a supply boot that’s separated from the floor register, letting conditioned air spill into the crawl space instead of your living room. The second most common is a flex duct that’s been crushed or kinked during a previous contractor’s crawl-space work. Both are repairable, and both make an immediate difference in how evenly your home heats and cools.
Sealing and Re-Insulating
We re-seal boots with mastic and mechanical fasteners, not tape, because tape fails in humid crawl spaces within a season or two. Then we re-insulate exposed runs to prevent condensation from the marine layer. In Old Greenwich, this step matters more than in inland Fairfield County.
What Ductwork Repair Costs in Old Greenwich
Expect to pay $180 to $420 for a single boot re-seal or a short flex-run repair. More involved repairs, like re-supporting a sagging trunk or replacing multiple boots, run $700 to $1,500. Again, one written price per job, agreed before we start.
Trusted Brands We Service in Old Greenwich
Our Old Greenwich customers’ systems run on a mix of original sheet metal, flex duct, and brand-name components from Aprilaire, Abatement Technologies, and Guardsman. We keep common replacement parts and sealants on the truck, so most repairs here don’t require a second trip. For duct cleaning work, we run Rotobrush and Nikro negative-pressure extraction equipment, which matters in homes where the ductwork is narrow-gauge and the crawl space is tight. If your system is older and we can’t match a fitting locally, we source it same-week and tell you that upfront.
Common Air Duct Repair Problems We See in Old Greenwich Homes
- Mold at supply-boot connections. Crawl-space moisture wicks into the duct interior where the boot meets the floor register. This shows up as black or green staining inside the boot and a persistent musty smell at the register. Cleaning alone won’t stop it; the boot must be pulled, cleaned or replaced, and re-sealed with mastic.
- Corroded sheet-metal fittings. Salt-laden marine air accelerates surface pitting on narrow-gauge trunk and branch fittings in pre-1960s colonials. A run can look acceptable on camera but fail structurally a year later. We check for this specifically on homes near Shore Road and Greenwich Cove.
- Crushed or kinked flex duct. In low-clearance crawl spaces, previous plumbers or electricians often compress flex runs to get past them. That restriction chokes airflow to specific rooms and makes the system work harder. We repair or replace those runs without charging you to diagnose a problem someone else caused.
- Storm-wetted insulation wrap. After a heavy rain event, the fiberglass wrap around duct runs absorbs water and holds it against the metal for weeks. That’s when corrosion and mold start. We replace wet insulation and document the condition before and after for insurance purposes.
Pricing for Air Duct Repair in Old Greenwich, CT
A typical air duct repair in Old Greenwich runs $180 to $900 for most single-run or boot issues. Partial system replacements run $1,200 to $3,200. Full-system replacement in larger or more involved homes can reach $7,200. What moves the number is access, run length, and whether we’re repairing or replacing. Every quote is written out before any work begins, and you get a free estimate when you call (980) 447-2498. There’s no per-vent pricing, no bait-and-switch, and no invoice you haven’t already seen. That’s how we’ve done it since 2004, and it’s the only way we’d run a duct repair business in a town like Old Greenwich.
We Also Serve Cities Near Old Greenwich
In addition to our work across Old Greenwich, we schedule Air Duct Repair appointments in Riverside, Cos Cob, Stamford, and Greenwich. If you’re in one of those towns and dealing with the same coastal humidity and aging ductwork, call us and we’ll route a crew to you.
Serving Old Greenwich, CT - Our Local Coverage Area
We’re based in the Old Greenwich 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 Old Greenwich
It depends on what the water touched and for how long, and we don’t guess at it. We run a camera through the full duct system and take moisture readings at the boots, the trunk, and the air handler. If the flex liner is intact and the sheet metal shows no pitting or standing water damage, cleaning with negative-pressure extraction is usually enough. If the liner has separated, insulation is saturated, or mold has colonized the duct interior, those sections need replacement. The dividing line is whether the duct can be dried and re-sealed, or whether the material itself is compromised. We document both conditions, including before-and-after photos with moisture readings, so you have evidence for your insurer.
Because Old Greenwich sits on Long Island Sound and Greenwich Cove, and the marine layer keeps indoor relative humidity elevated year-round, not just in summer. Homes here, especially pre-1960s colonials on crawl spaces, have ductwork that breathes that humid air constantly. In Cos Cob or Backcountry, the air is drier and the crawl spaces are less likely to sit in a salt-humid pocket. That’s why a cleaning schedule that works inland doesn’t work here. If your home is within a few blocks of the water, we typically recommend more frequent inspection, not because we want the repeat business, but because the biology and the corrosion move faster.
We photograph the wetted duct sections before and after, record moisture readings at each compromised point, and note the specific failure mode, whether it’s crawl-space wicking, a one-time spill, or storm-driven intrusion. The documentation shows which sections were cleaned and re-sealed versus which were replaced, and why. That distinction matters because adjusters often push back on full replacement claims when only a portion of the system was actually damaged. Our paperwork is formatted for coastal Connecticut adjusters who understand the difference between cleanable trunk sections and replace-only branches. We don’t write the claim for you, but we give you the evidence that makes it hard to deny.
If the smell is from dust and surface growth inside the duct, cleaning will help significantly. But if the smell is coming from mold colonized inside the duct liner or at the supply boot connection, cleaning alone won’t eliminate it. The source has to be removed or sealed. In older Old Greenwich homes, we often find the musty register smell is actually coming from the crawl space below, where the boot has separated and is pulling damp crawl-space air into the living space. We fix that by re-sealing the boot and, if needed, replacing the first few feet of flex run. Call us and we’ll tell you which one you have before we quote the job.
In most cases, you only need to replace the sections that were actually wetted and are now compromised, not the entire system. A field vignette from our work on Oval Avenue illustrates this. A homeowner called after a full-day rain event soaked the crawl space beneath a 1950s cape. When we pulled a supply boot near the living room register, the flex duct interior was colonized with mold within two cooling seasons and the pre-1960s sheet-metal trunk showed surface pitting. Our tech ran a camera inspection to the air handler, confirmed the branch had been wetted by crawl-space wicking rather than a one-time spill, and we replaced the flex runs and re-sealed the boots. We documented before-and-after photos with moisture readings so the adjuster could distinguish cleanable trunk sections from replace-only branches. That’s the criteria-based approach we take on every Old Greenwich job.
Written by Marcus Veale, Owner at Linden Air Duct Cleaning, serving Old Greenwich since 2004.
Ready to get a straight answer about your ducts? Call (980) 447-2498 for a free estimate. We’ll send a background-checked, photo-badged technician to Old Greenwich, put the price in writing before work begins, and stand behind every repair with a written guarantee.