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
Duct repair and sealing in Des Plaines typically runs $340-$890 for most residential jobs, with flood-damaged systems requiring full remediation starting around $1,200. We dispatch crews to Des Plaines from our Chicago office, and most homeowners in the River Road, Graceland Avenue, and Oakton Street corridors see us within a scheduled two-hour window. If your basement has taken water and you’re smelling must from the registers, the problem is likely in the return plenum, not just the vents you can see. Call (224) 351-9772 and we’ll put a written price in front of you before any panel comes off.
Our Duct Repair & Sealing team has worked the post-WWII ranches and split-levels that make up most of Des Plaines’s housing stock. These homes were built fast between the late 1940s and early 1970s, and many still run original sheet-metal ductwork that has never been opened in fifty-plus years. When that ductwork sits in a basement that flooded in 2013 or 2017, contamination isn’t surface-level. It’s structural.
Why CleanRun Air Duct Cleaning Northbrook Is Des Plaines’s Preferred Duct Repair & Sealing Company
We’ve served Des Plaines homeowners since 2013 with one rule that hasn’t changed: written price first, every time, under Haven Standard Clause 1. No “call for a quote.” No per-vent teaser rates that balloon once the truck is in your driveway. The price we write is the price you pay.
Our Des Plaines customers receive a Documented Photo Record on every visit - before-and-after footage of every duct run, delivered as part of the standard job record. After the 2017 flood, we handled dozens of remediation jobs in the River Road corridor where homeowners needed insurer-ready documentation. We provided camera footage, moisture readings, and post-cleaning mold swab results that adjusters accepted without dispute. That practice is now standard on every Des Plaines job we take.
Every technician is background-checked, uniformed, and identified by name before arrival - Haven Standard Clause 3: Verified Crews. The 365-Day Done Right Promise backs every job in writing, not as a policy subject to manager approval. If the work isn’t right, we make it right.
Our equipment roster includes Rotobrush, Nikro, Abatement Technologies, and Guardsman - brands you can look up independently before agreeing to any scope of work.
Our Duct Repair & Sealing Services in Des Plaines
Duct Sealing
Des Plaines’s original sheet-metal systems leak at the joints. Not dramatically, but steadily, and that leakage pulls basement air - flood-affected or not - directly into your supply stream. We seal with mastic, not tape. Mastic is a fiber-reinforced paste that remains flexible after curing, which matters in Des Plaines homes where seasonal expansion and contraction of 1950s metal eventually cracks rigid sealants. A typical duct sealing job in Des Plaines runs $340-$580 for a single-system home.
Metal Duct Repair
The sheet-metal trunks in Des Plaines ranches and split-levels corrode at the seams after flood exposure. We’ve cut open return trunks near the air handler that looked intact from the outside but were packed with dried river silt inside. Our metal duct repair includes section replacement where corrosion has compromised the wall, re-seaming with Pittsburgh-lock joints where the original seams have failed, and full mastic coating on all new connections. Most metal repairs in Des Plaines fall between $420 and $760.
Flex Duct Repair
Flex duct in Des Plaines appears mainly in additions, finished basements, and crawlspaces - the same areas that flood. Once the outer jacket and insulation layer get wet, they don’t dry clean. The inner liner can be sanitized, but trapped contamination between layers persists. We replace flex runs rather than patch them, because patching leaves the problem where you can’t see it. Flex duct replacement in Des Plaines typically costs $180-$340 per run.
Duct Insulation
Des Plaines basements stay humid through summer, especially in the River Road corridor where the Des Plaines River elevates ambient moisture. Uninsulated or water-damaged duct insulation creates condensation on metal trunks, which feeds mold growth inside the system. We install closed-cell insulation on replacement sections and vapor-barrier-wrapped fiberglass on full trunk replacements, sized to the R-value requirements for Cook County’s climate zone. Duct insulation work in Des Plaines generally ranges from $280 to $520.
Mastic Sealant Application
This is our standard on every Des Plaines sealing job, not an upsell. Mastic sealant (the fiber-reinforced compound, not duct tape) is brushed onto every joint and seam after repair or cleaning. In flood-affected Des Plaines homes, we apply mastic to the return plenum and air handler cabinet as well, because those are the entry points where river sediment and mold colonies establish themselves. Mastic application is included in our sealing pricing; standalone application on accessible joints runs $220-$380.
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
We stock parts and maintain equipment from Honeywell, Aprilaire, and Guardsman for Des Plaines jobs. Honeywell media air cleaners and Aprilaire humidifier components integrate directly with the forced-air systems common in Des Plaines’s post-war housing stock. Guardsman UV-C units install at the air handler to suppress mold recurrence in high-humidity basements. We don’t sell equipment you can’t verify - every brand we name is documented in your written scope before work begins, with model numbers where applicable.
Common Duct Repair & Sealing Problems We See in Des Plaines Homes
- Flood sediment in return boots. On Graceland Avenue near the river, our tech pulled the return boot off a 1962 split-level whose basement air handler had been submerged in 2017; camera inspection showed dried river silt packed into the first 12 feet of the return trunk and active mold on the boot’s interior. We ran negative pressure containment, HEPA-filtered the run, sealed the compromised joints with mastic, and handed the homeowner before-and-after footage plus post-cleaning mold swab results for their flood claim adjuster.
- Tape “repairs” on original sheet metal. Des Plaines homeowners frequently call us after another company has wrapped leaking joints with foil tape. Tape fails within one heating season on 1950s metal. The joint leaks again, and in flood-prone basements, that leakage pulls contaminated air into the supply stream. We remove tape residue and seal with mastic, which is the only repair an insurer will recognize as permanent.
- Re-connected flex duct after flooding. Flex runs in Des Plaines crawlspaces and basements get disconnected, drained, and re-connected without replacement of the insulation layer. Contaminated water sits between the inner liner and outer jacket. No agitation tool can reach it. We replace the full run and photograph the removed section for documentation.
- Surface-only “cleaning” after water events. Brushing visible registers while leaving silt and mold colonies inside submerged return boots and plenums around the air handler. The homeowner smells must again within weeks. We camera-inspect the full return path before quoting any scope of work.
Pricing for Duct Repair & Sealing in Des Plaines, IL
| Service | Typical Range in Des Plaines |
|---|---|
| Duct sealing (single system, mastic) | $340 - $580 |
| Metal duct repair / section replacement | $420 - $760 |
| Flex duct replacement (per run) | $180 - $340 |
| Duct insulation (partial system) | $280 - $520 |
| Post-flood remediation with documentation | $1,200 - $2,400 |
| Written estimate / second opinion | No charge |
What moves a Des Plaines job toward the higher end: multiple system zones, access constraints in finished basements, and flood-damaged components requiring replacement rather than cleaning. What doesn’t affect price: number of vents. We price per system, not per register, because per-vent pricing is the industry’s most common bait-and-switch mechanism.
Every Des Plaines estimate includes the written price before work starts - Haven Standard Clause 1 - and the Documented Photo Record delivered before we leave. Bring a competitor’s written quote; we’ll put our number next to it at no charge.
We Also Serve Cities Near Des Plaines
Our crews work Des Plaines regularly and also handle duct repair and sealing in Mount Prospect, Glenview, Northbrook, and Elk Grove Village. Dispatch and scheduling are coordinated from our Chicago office. Crews serve Des Plaines locally with the same equipment roster and documentation standards we apply across the metro area.
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
It depends on what the camera shows and how long the water sat. If the floodwater reached the return plenum and the silt has dried in place, HEPA vacuuming with negative-pressure containment usually restores metal trunks. Flex duct and insulation almost always require replacement because contamination traps between layers where no tool can reach it. We document the determination with camera footage and moisture readings so your adjuster sees the basis for the scope. Call (224) 351-9772 for an exact assessment - estimates are free.
Most standard flood policies cover HVAC system remediation when the damage is documented as direct flood-related, not deferred maintenance. We provide the documentation adjusters need: dated before-and-after camera footage, moisture meter readings with location logs, and third-party mold swab results where applicable. Our Des Plaines customers have used this documentation successfully for claims related to the 2013 and 2017 flood events. We do not guarantee coverage - that’s between you and your carrier - but we guarantee the documentation will be insurer-ready. Call (224) 351-9772 to discuss your specific situation.
The Des Plaines River corridor generates elevated summer humidity, and the 2013 and 2017 flood events pushed water directly into basement air handlers in the River Road and Graceland Avenue areas. Homes further west in Mount Prospect or Elk Grove Village sit on higher ground with drier basements and less flood history. The contamination pattern in Des Plaines is structural: return ducts run through the same unfinished basements that took water, so flood sediment enters the HVAC system at the plenum, not just the slab. That’s a different remediation problem than routine dust accumulation.
Duct sealing with mastic fixes the joints and seams where contaminated basement air leaks into your supply stream after a flood event. It does not remove contamination that has already entered the ductwork - that’s remediation work, and it must happen first. Sealing also does not fix corroded metal or water-damaged flex duct; those require section replacement. We seal only after cleaning and repair are complete, and we photograph every sealed joint for your record. Call (224) 351-9772 and we’ll walk through what your specific system needs.
Yes, our remediation and cleaning protocols follow NADCA ACR standards for HVAC system restoration. For flood-damaged systems, we add documentation requirements beyond NADCA minimums: moisture mapping, mold swab testing, and written certification of restoration completeness that many Des Plaines insurers specifically request. The NADCA standard is our floor, not our ceiling. Every flood-remediation job includes the full Documented Photo Record and written scope under the 365-Day Done Right Promise.
Ready to see what’s actually inside your Des Plaines ductwork? Call (224) 351-9772. We’ll answer with a live person, schedule a technician at your convenience, and put a written price in front of you before any work begins. Every job is backed by the 365-Day Done Right Promise and the full H.A.V.E.N. Standard. Free second opinions on any written estimate.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Des Plaines since 2013.