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 Duct Repair & Sealing Across Des Plaines
Most duct repair calls we take from Des Plaines aren’t about a single broken piece. They’re about systems that have been leaking, shedding, and pulling apart for decades. A typical Des Plaines home built between 1955 and 1975 runs original sheet-metal trunk lines with fibrous internal duct liner that’s now brittle enough to crumble at a touch. We’re usually on Miner Street, Touhy Avenue, or off River Road within the hour when Des Plaines homeowners call, and our crews carry the equipment to seal, repair, or replace runs on the same visit. Call (708) 683-3974 for a written estimate before any work starts.
Why CleanRun Air Duct Cleaning Chicago Is Des Plaines’s Preferred Duct Repair & Sealing Company
We’ve been documenting the inside of Des Plaines ductwork since 2013. In that time, our crews have photographed the interior of more than 2,800 Des Plaines systems, and the pattern is consistent: original 1950s-1970s metalwork with degraded liner, gapped seams from thermal cycling, and - uniquely near O’Hare - that gray-black soot film on return grilles that surprises homeowners when we show them the camera feed.
Our Des Plaines customers rate us consistently for one reason above others: we show what we found before we name a price. Every job starts with a written quote under Haven Standard Clause 1, and every job ends with a Documented Photo Record delivered to the customer. No manager approval needed for the 365-Day Done Right Promise - it’s printed on the work order.
Dispatch and scheduling for Des Plaines run from our Chicago office, but the crew that arrives at your door lives and works in the northwest suburbs. Technicians are background-checked and uniformed under Haven Standard Clause 3: Verified Crews, and they’re identified by name before arrival. All calls route to a live person, 24/7.
Our Duct Repair & Sealing Services in Des Plaines
Duct Sealing
Des Plaines ranch homes lose conditioned air through trunk-line seams that opened gradually over 50-70 years of heating and cooling cycles. We seal these gaps with mastic sealant and mechanical fasteners, then pressure-test the system to verify the fix. Near Touhy Avenue and the O’Hare approach corridors, sealing also blocks the infiltration path for jet-exhaust particulates that bypass standard filtration. Our Duct Repair & Sealing teams measure leakage before and after with a duct blaster so the improvement is documented, not guessed.
Flex Duct Repair
Flex duct branch runs in Des Plaines basements often get crushed during flood repairs or routine storage. We find disconnected collar joints behind finished ceilings where conditioned air has been dumping into joist bays for years. In one 1962 ranch off Miner Street, our crew found a crushed 6-inch branch run with its fibrous liner shedding into the airstream, and the basement trunk connection had pulled apart at a joint. We sealed the failed connection with mastic, wrapped the accessible run in duct insulation, and isolated the degraded section behind a new boot to restore supply and return ducts to a single airtight system.
Metal Duct Repair
Original galvanized steel trunks in Des Plaines Cape Cods and ranches corrode at low points where condensation collects, particularly in basement runs near the Des Plaines River floodplain. We patch or replace sections, rehang sagging lines, and reseal connections with professional-grade mastic. When the metal is sound but the internal fibrous liner has degraded, we can sometimes line the run with a smooth, non-shedding coating rather than full replacement - a significant cost difference we’ll explain in writing before you decide.
Duct Insulation & Mastic Sealant
Uninsulated basement ducts in Des Plaines lose efficiency through the crawl space or unfinished basement, and in flood-prone areas near the river, insulation that has absorbed moisture becomes a mold reservoir. We remove degraded insulation, treat the metal, and install new foil-faced duct insulation with sealed vapor barriers. Mastic sealant - a thick, fiber-reinforced compound we apply by brush - closes seams that foil tape alone cannot hold. It’s slower than tape. It lasts decades longer, which is why we use it on every Des Plaines metal-duct repair.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
BeforeAfterTrusted Brands We Service in Des Plaines
Our trucks stock parts and materials from Rotobrush, Honeywell, and Aprilaire - brands our Des Plaines customers can look up before we arrive. We don’t special-order critical components; we carry them. That means a sealing job on a Des Plaines ranch doesn’t wait for a mastic delivery, and a Honeywell media cabinet upgrade happens on the same visit as the duct repair if that’s what the system needs. Equipment verification is part of the written scope you receive before work starts.
Common Duct Repair & Sealing Problems We See in Des Plaines Homes
- Fibrous liner shedding in 1950s-1970s ranch systems. The original internal insulation crumbles into the airstream, clogging blower motors and coating registers. We find this in roughly six out of ten Des Plaines homes built before 1975. Camera inspection shows the difference between surface dust and active liner degradation.
- Crushed or disconnected flex duct hidden behind finished basements. After flood repairs or DIY storage projects, branch runs get pinched or pulled from collar joints. Conditioned air leaks into unconditioned joist bays, and the homeowner sees it as “the upstairs never gets warm.”
- Return-air trunk seams gapped by decades of thermal cycling. Near O’Hare, these gaps pull in unfiltered air loaded with jet-exhaust particulates and construction dust from the modernization project. The gray-black film on returns is the visible sign; the pressure-tested leakage number is the measurable problem.
- Basement duct runs retaining mold after Des Plaines River flooding. Several neighborhoods sit in or near the floodplain, and when water reaches the mechanical room, ductwork becomes a distribution system for spores. Cleaning alone doesn’t fix degraded liner or corroded metal; repair or replacement is often the only durable solution.
Pricing for Duct Repair & Sealing in Des Plaines, IL
A typical duct sealing job for a single-system Des Plaines ranch runs $450-$890, depending on accessible seam length and whether we need to open finished basement ceilings. Flex duct repair or replacement of a single branch run ranges $280-$620. Metal duct repair - patching corroded sections, rehanging, and resealing - typically falls between $380 and $780. Full duct insulation replacement in a basement mechanical room runs $520-$1,100.
What moves the number: accessibility (finished vs. unfinished basement), extent of liner degradation, and whether mold remediation is required before repair work begins. Every Des Plaines job gets a written price before any panel comes off, under Haven Standard Clause 1. Bring a competitor’s written estimate and we’ll provide a Free Second Opinion, line item by line item. Estimates are free. Call (708) 683-3974.
We Also Serve Cities Near Des Plaines
Our crews work Duct Repair & Sealing in Des Plaines and the surrounding northwest suburbs daily, including Mount Prospect, Glenview, Northbrook, and Elk Grove Village. Each market gets the same written-price protocol and documented photo record, though the ductwork conditions vary - Des Plaines’s O’Hare-adjacent soot loading and river-floodplain moisture create repair needs we don’t typically see in Glenview or Northbrook.
Serving Des Plaines, IL - Our Local Coverage Area
We’re based in the Des Plaines 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 - Duct Repair & Sealing in Des Plaines
Jet exhaust and construction dust from the O’Hare modernization project deposit a fine particulate that bypasses standard filtration through gapped return seams. Cleaning removes what’s already inside; sealing stops new contamination from entering. In Des Plaines neighborhoods near Touhy Avenue, we regularly measure return-side leakage at 25-40% of total airflow - unfiltered air pulled directly from the attic or basement. Sealing those seams drops the leakage to under 10%, which is the actual fix. Call (708) 683-3974 for a pressure-test estimate.
If water reached your basement mechanical room, yes, repair is likely. Fibrous duct liner that has absorbed floodwater cannot be sanitized to a durable standard; it sheds mold and bacteria into the airstream until it’s removed or isolated. Metal ducts may corrode at low points. We camera-inspect every flooded system in Des Plaines to determine whether cleaning, liner removal, or full section replacement is the appropriate scope - and we put that determination in writing with photos before naming a price.
From the register, it looks like weak airflow in one room. From inside the duct, the camera shows a flex run pinched behind a basement ceiling panel, or a collar joint pulled loose so the branch is blowing into the joist bay. In Des Plaines ranches with finished basements, these problems often hide behind drywall installed decades after the original construction. We locate the failure with a camera, open the minimum access needed, and document the before-and-after with photos you receive as part of the job record.
Not necessarily. The film indicates unfiltered air is entering through gapped return seams - common near O’Hare - and carrying particulate that deposits on the grille. If the metal duct is structurally sound, sealing the seams with mastic and upgrading filtration often resolves both the cosmetic issue and the underlying contamination path. We only recommend replacement when the metal is corroded, the liner is actively shedding, or the duct has been crushed beyond repair. The camera inspection shows which category your system falls into.
We pressure-test with a duct blaster before and after, and the numbers go on your written invoice. Haven Standard Clause 1 requires documented proof of improvement, not just a technician’s word. For Des Plaines homes with O’Hare-area soot loading, we also photograph the return grilles at the one-month mark as a verification check. If leakage hasn’t dropped to the agreed target, the 365-Day Done Right Promise applies - we return and correct it at no charge. Call (708) 683-3974 to schedule a test-and-seal visit.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Des Plaines since 2013.