Fast, Reliable Duct Repair & Sealing Across Hickory Hills
Most duct repair calls in Hickory Hills aren’t simple patch jobs. You’re looking at 50-year-old galvanized sheet metal in a ranch or split-level that’s been running since the Johnson administration, and you want it fixed without three return visits and a bill that doubles at the door. We get out to Hickory Hills fast from our Chicago base, and our Duct Repair & Sealing team carries the equipment to handle both your house ducts and that heavy-duty workshop door in one trip. Call (877) 502-3903 for a free estimate. We’ll be there when we say.
Why Bellows Air Duct & Vent Co. of Chicago Is Hickory Hills’s Preferred Duct Repair & Sealing Company
We’ve been serving southwest Cook County for over 42 years, and Hickory Hills is in our regular rotation. Ray Dempsey built this company on showing up, doing the work right, and leaving nothing behind but clean air and a signed guarantee.
Our technicians know the 60457 ZIP code well. They know the ranch homes on 95th Street, the split-levels off 76th Avenue, the bi-levels near the Palos Hills border. They know about the clay soil that pushes moisture into basements, the original fiberglass-lined plenums that are shedding fibers by now, and the stud-bay return-air chases that collect decades of drywall dust. That local knowledge means we diagnose faster and fix it right the first time.
Calls are answered by a live person, 24 hours a day. Not a voicemail tree. Not an app. A real person who can dispatch a background-checked, uniformed technician to Hickory Hills, usually same day.
Our pricing is disclosed upfront before we lift a single tool. The number on the phone is the number on the invoice. No bait coupons, no price changes at the door. And every job is camera-inspected before and after, so you see what we see.
Our Duct Repair & Sealing Services in Hickory Hills
Mastic Sealant Application
The original ductwork in Hickory Hills homes was sealed with fabric tape or nothing at all. That tape degrades, peels, and lets conditioned air leak into your basement or wall cavities. We seal every accessible joint with professional-grade mastic, the same product serious HVAC contractors specify. In Hickory Hills’s humid summers, mastic cures in 24 to 48 hours and stays flexible for decades, unlike tape that fails again in three years. A typical mastic sealing job for a ranch or split-level in Hickory Hills runs $280-$450.
Duct Insulation
Many Hickory Hills homes have duct runs passing through unconditioned attic spaces or garage walls, especially on acreage properties where the workshop HVAC ties into the main house system. Uninsulated ducts lose 20 to 30 percent of their heating or cooling before the air reaches the room. We install foil-faced fiberglass duct insulation or closed-cell foam wraps, depending on access and your system’s needs. Most duct insulation jobs in Hickory Hills run $340-$620.
Air Leak Repair
Leaks at plenum connections, register boots, and access panels are standard in 1960s construction. We pressure-test the system, mark every leak with a smoke pencil, then repair with mastic, mechanical fasteners, or metal patches where needed. For Hickory Hills homes with the original radial duct layout from a basement furnace, we often find the main trunk line has separated at the plenum connection. Air leak repair typically runs $180-$320 for localized work, or $450-$780 for full-system sealing.
Flex Duct Repair
Some Hickory Hills homes had flex duct added later for basement finishing or garage workshop conversions. Flex duct crushes, tears, and disconnects at the collar. We replace damaged sections with new insulated flex or convert to rigid metal where the run allows. Flex duct repair in Hickory Hills typically runs $220-$380 per run.
Metal Duct Repair
The galvanized steel in your original system can corrode at the bottom of horizontal runs, especially where basement moisture collects. We cut out rusted sections, fabricate replacement pieces on site, and seal them into the existing system. Metal duct repair in Hickory Hills runs $260-$480 depending on access and the extent of corrosion.
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.
Trusted Brands We Service in Hickory Hills
We carry parts and materials from Rotobrush, Nikro, and Honeywell, the same brands that HVAC contractors in Chicago specify for their own jobs. For Hickory Hills customers, that means no waiting on special orders for standard repairs. Our trucks are stocked with mastic, insulation, mechanical fasteners, and replacement duct sections so most jobs finish in a single visit. We also source Guardsman air quality products when your duct repair includes upgrading filtration or adding a whole-house sanitizer.
Common Duct Repair & Sealing Problems We See in Hickory Hills Homes
- Original fiberglass-lined plenums shedding particles. The 1960s-70s furnaces in Hickory Hills ranch and split-level homes used fiberglass-lined plenum boxes to reduce noise. After 50 years, that liner degrades and releases fibers into your air. We inspect with a camera, then seal or replace the plenum depending on condition.
- Stud-bay return-air chases packed with construction debris. When those 1960s split-levels were later renovated, drywall dust, insulation scraps, and even dropped tools fell into the open wall cavities that serve as return ducts. Standard suction won’t clear it. We cut access panels where needed and remove the compacted debris by hand and mechanical agitation.
- Basement moisture intrusion corroding duct bottoms. Hickory Hills’s flat, clay-soil terrain drains slowly. After heavy rain, water finds basement walls and can pool in low duct runs. We probe for moisture damage before sealing, because sealing over mold or rust just traps the problem.
- Detached workshop ductwork with failed connections. Acreage properties around Hickory Hills often have a second furnace or air handler in a workshop or outbuilding. The longer duct runs and temperature extremes in unconditioned spaces cause expansion and contraction that loosens joints. We inspect the full run, not just the obvious leak.
Pricing for Duct Repair & Sealing in Hickory Hills, IL
Here’s what honest pricing looks like for Hickory Hills’s market. These are the ranges we quote before work starts, and they’re the ranges on the final invoice.
| Service | Typical Range in Hickory Hills |
|---|---|
| Air leak repair (localized) | $180-$320 |
| Full-system mastic sealing | $280-$450 |
| Flex duct repair/replacement (per run) | $220-$380 |
| Metal duct repair (corroded section) | $260-$480 |
| Duct insulation (per run or trunk section) | $340-$620 |
| Plenum repair or replacement | $380-$650 |
What moves you within these ranges: access difficulty (crawl space vs. open basement), extent of damage, and whether we need to cut access panels to reach hidden ductwork. Homes with finished basements take longer. Homes with the original open basement ceiling are straightforward.
We offer $50 off any repair over $250, a free second opinion on any written estimate you bring us, and a permanent 5% senior and veteran discount. Estimates are free. Call (877) 502-3903.
We Also Serve Cities Near Hickory Hills
Our technicians regularly work in Hickory Hills and the surrounding communities. If you’re in Justice, Bridgeview, Palos Hills, or Willow Springs, the same response times, pricing structure, and 90-Day Done Right Promise apply. Same trucks, same technicians, same upfront quotes.
Serving Hickory Hills, IL - Our Local Coverage Area
We’re based in the Hickory Hills 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 Hickory Hills
No, we don’t repair garage door openers or springs. We’re an air duct company, not a garage door company. We can repair and seal the ductwork in your workshop and main house in one trip, including any flex duct or metal duct runs between buildings, but you’ll need a dedicated garage door contractor for the opener or spring. Call (877) 502-3903 and we’ll handle the ducts right.
Yes, when necessary. We make small, strategic access cuts in drywall to reach compacted debris that standard suction equipment cannot clear, then patch and seal the opening properly. We always discuss location and scope with you before cutting. The alternative is leaving decades of drywall dust and insulation fibers circulating through your system. Call (877) 502-3903 for a camera inspection and we’ll show you exactly what’s in there.
Only after we verify there’s no active moisture intrusion or mold growth. Sealing over wet or moldy ductwork traps the problem and makes it worse. We probe basement duct sections with a camera and moisture meter first. If we find issues, we address the moisture source and dry the system before sealing. This is standard procedure for Hickory Hills homes given the local clay soil and sump-pump frequency. Call (877) 502-3903 and we’ll assess it properly.
Mastic typically cures in 24 to 48 hours during Hickory Hills summer humidity, compared to 12 to 24 hours in dry winter conditions. We use high-build, slow-cure mastic rated for HVAC applications, not hardware-store caulk, so it remains workable long enough to form a complete seal even in July humidity. You can run your system normally after application; the airflow actually helps the final cure. Call (877) 502-3903 to schedule.
It depends on the liner’s condition, which we determine by camera inspection. If the fiberglass is intact and adhered, we can seal the plenum exterior and surrounding joints to prevent air leakage. If the liner is degrading, shedding particles, or delaminated, replacement is the only permanent solution. Replacement plenums run $380-$650 in Hickory Hills, while sealing an intact unit runs $280-$450. We’ll show you the camera footage and give you an honest recommendation. Call (877) 502-3903 for a free inspection.
Ready to get your Hickory Hills home’s ductwork fixed right? Call Bellows Air Duct & Vent Co. of Chicago at (877) 502-3903 for a free estimate. We’ll inspect with a camera, quote one honest price before we start, and back the work with our 90-Day Done Right Promise in writing. No paperwork, no arguing. If it’s not right, we make it right.
Written by Ray Dempsey, Owner at Bellows Air Duct & Vent Co. of Chicago, serving Hickory Hills since 2012.