Fast, Reliable Duct Repair & Sealing Across Arlington Heights
Duct repair and sealing in Arlington Heights typically runs $280-$650 for most homes, with same-day service available when you call before noon. We cover all of Arlington Heights, from the ranch neighborhoods of 60004 to the split-level blocks of 60005 and the townhome clusters near 60006. Our technicians live in the northwest Cook County area, so we’re usually on your street within the hour, not three hours out from some dispatch center downtown.
We’ve been driving Arlington Heights roads since 1984. We know the tight crawl spaces under those 1960s split-levels near Woodgate. We know the original fiberglass duct board crumbling in ranch basements along South Arlington Heights Road. And we know that when your furnace is running nonstop through a polar vortex January, or your A/C is fighting 70% humidity in July, you can’t wait around for a technician who treats your house like every other house in the metro area. Call (844) 685-6342. A live person answers, 24 hours a day.
Why Bellows Air Duct & Vent Co. Is Arlington Heights’s Preferred Duct Repair & Sealing Company
Homeowners in Arlington Heights call us back because we don’t bait-and-switch. Our Duct Repair & Sealing team gives you one honest price before we lift a single tool, and that number matches the invoice. No coupon games. No “while we’re here” upsells.
Our 90-Day Done Right Promise is stamped on every job. If it’s not right, we make it right. No paperwork to file, no arguments. That’s been our standard since Ray Castillo founded Bellows in 1984, and it’s why Arlington Heights customers who’ve been burned by low-bid contractors stick with us for decades.
Every technician is background-checked and uniformed. Every job gets camera-inspected before and after, so you see what we see, not just take our word for it. Most repairs finish in a single visit. And when you call (844) 685-6342, you reach a live person at our office, not a voicemail tree, not an app.
Our Duct Repair & Sealing Services in Arlington Heights
Duct Sealing
Leaky ducts waste 20-30% of your heating and cooling dollars before the air ever reaches your rooms. In Arlington Heights, where furnaces run hard five months a year and A/C fights humid summers the other four, that’s real money bleeding into your walls. Our crew pressurizes your system, pinpoints every leak with calibrated equipment, then seals joints and seams with professional-grade mastic. We don’t use duct tape. Duct tape fails in months. Mastic lasts.
Flex Duct Repair
Flex duct is common in Arlington Heights additions and basement retrofits from the 1970s and 1980s. It kinks, it sags, it detaches from plenums. Our crew recently sealed a 1962 split-level on South Arlington Heights Road near the Woodgate Shopping Center where decades-old flex duct had detached from the plenum, causing cold basement bedrooms. We used Rotobrush agitation to access tight runs, then applied Mastic Sealant from Abatement Technologies to reseal all joints, boosting airflow by 30%. Flex duct repair in Arlington Heights typically runs $180-$340 per run, depending on accessibility.
Metal Duct Repair
Original galvanized steel ductwork from the 1955-1975 buildout still carries air in thousands of Arlington Heights homes. It rusts at seams. It separates at collars. It rattles when the blower kicks on. We cut out damaged sections, fabricate replacement pieces on-site, and seal with mastic and mechanical fasteners. Metal duct repair in Arlington Heights usually falls between $320-$580, with larger trunk line work running higher.
Duct Insulation
Uninsulated metal runs in unheated basements are an Arlington Heights epidemic. In summer, they sweat. That moisture feeds microbial growth. In winter, they bleed heat before it reaches your second floor. We wrap with formaldehyde-free fiberglass insulation or closed-cell foam where space allows, then seal the vapor barrier. Duct insulation for a typical Arlington Heights basement system runs $450-$890. It’s often the fix for “the upstairs is always cold” complaints that sealing alone won’t solve.
Mastic Sealant Application
We specify mastic from Abatement Technologies and Aprilaire-compatible compounds, brushed or sprayed onto every joint, seam, and penetration. Unlike tape, mastic remains flexible through decades of thermal expansion. In Arlington Heights’s freeze-thaw climate, that matters. Mastic sealing as a standalone service for accessible ductwork runs $280-$520.
Air Leak Repair
Return air leaks in basements pull in fiberglass particles, dust, and occasionally radon-affected soil gas. Supply leaks pressurize walls and attic spaces. We pressure-test, locate, and repair both. In older Arlington Heights homes with complex multi-floor duct paths, partial sealing leaves hidden leaks wasting efficiency despite costly repairs. We map the full system before we seal anything.
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 Arlington Heights
We stock parts and specify equipment from Rotobrush, Abatement Technologies, and Aprilaire, the same brands serious HVAC contractors in Arlington Heights trust for their own homes. Rotobrush agitation tools let us access tight runs in split-level joist bays where conventional equipment won’t fit. Abatement Technologies mastics and encapsulants handle degraded fiberglass duct board without spreading debris. And Aprilaire air quality components integrate with sealed systems for whole-home performance. We don’t order parts from a catalog three days out. Our trucks carry what Arlington Heights homes need, so most jobs finish the same day we arrive.
Common Duct Repair & Sealing Problems We See in Arlington Heights Homes
- Degraded fiberglass duct board in older ranches. In the original ranch-home neighborhoods near downtown Arlington Heights, technicians regularly find original plenum boxes lined with degraded fiberglass duct board that has begun shedding fibers into the airstream. Vacuuming alone spreads debris. Repair requires liner replacement or encapsulation with Abatement Technologies products.
- Sweating ducts in unheated basements. Uninsulated duct runs in unheated basements of 1950s colonials sweat in summer humidity, causing microbial growth that standard sealing doesn’t address. Insulation is the fix, not more mastic.
- Detached flex duct in split-levels. Arlington Heights split-level homes in 60004 and 60005 often have duct runs constrained by narrow joist bays and tight crawl spaces, making conventional sealing impossible without partial disassembly, a scenario common in the Woodgate neighborhood.
- Partial sealing leaving hidden leaks. Split-level homes near downtown Arlington Heights have complex multi-floor duct paths where partial sealing leaves hidden leaks, wasting HVAC efficiency despite costly repairs. We map and test the full system.
Pricing for Duct Repair & Sealing in Arlington Heights, IL
Here’s what honest pricing looks like in Arlington Heights’s market:
| Service | Typical Range |
|---|---|
| Mastic sealing (accessible ductwork) | $280-$520 |
| Flex duct repair/replacement (per run) | $180-$340 |
| Metal duct repair (sectional) | $320-$580 |
| Duct insulation (typical basement system) | $450-$890 |
| Fiberglass duct board liner repair/encapsulation | $380-$720 |
| Full system pressure test and seal | $650-$1,200 |
Three factors move you up or down within these ranges: accessibility (crawl space vs. open basement), material condition (surface seal vs. degraded liner replacement), and system size. We show you the exact price before we start. No surprises on the bill. We also honor our standing offers: $50 off any repair over $250, a free second opinion on any written estimate, and a permanent 5% senior and veteran discount. Call (844) 685-6342 for your free estimate.
We Also Serve Cities Near Arlington Heights
Our Duct Repair & Sealing in Arlington Heights crew also responds to calls in Bangor, Nazareth, Phillipsburg, and Easton. Same trucks, same technicians, same upfront pricing. If you’re on the border of Arlington Heights and wondering whether we cover your address, call and ask. We probably do.
Serving Arlington Heights, IL - Our Local Coverage Area
We’re based in the Arlington Heights 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 Arlington Heights
Yes. We seal crawl-space ducts in Arlington Heights split-levels regularly, though tight joist bays often require partial disassembly and Rotobrush agitation to access the full run. The Woodgate neighborhood and similar 60004/60005 areas are where we do this most. Call (844) 685-6342 to discuss your specific layout, estimates are free.
We assess the material before touching it. Pre-1980 mastic and insulation wrap can contain asbestos, so our technicians test and identify degraded fiberglass duct board, then repair or encapsulate with Abatement Technologies products rather than vacuuming and spreading fibers. This distinguishes a thorough Arlington Heights job from a surface clean. Call (844) 685-6342 for an assessment.
Yes, though uneven heating in 1960s colonials often requires both sealing and insulation. Uninsulated basement runs bleed heat before it reaches your second floor, and leaky supply ducts pressurize walls instead of rooms. We pressure-test to find which problem dominates, then quote both services if needed. Call (844) 685-6342 for a free evaluation.
We specify mastic sealant from Abatement Technologies and Aprilaire-compatible compounds, applied by brush or spray to every joint and seam. These remain flexible through decades of Arlington Heights freeze-thaw cycles, unlike duct tape which fails in months. Call (844) 685-6342 if you have questions about materials.
Duct sealing typically reduces heating and cooling costs 20-30% in Arlington Heights’s 1950s ranches, but original ducts with degraded liner or missing insulation may need repair or replacement first. We camera-inspect before quoting, so you know exactly what you’re paying for. Call (844) 685-6342 for a free estimate and honest assessment.
Ready to stop losing heated and cooled air to your walls? Call Bellows Air Duct & Vent Co. at (844) 685-6342. A live person answers 24 hours a day. We’ll give you an honest price before we start, back the work with our 90-Day Done Right Promise, and leave you with camera-verified results you can see. We’ve served Arlington Heights and the northwest Cook County suburbs for over 42 years. We’ll be there when we say.
Written by Ray Castillo, Owner at Bellows Air Duct & Vent Co., serving Arlington Heights since 1984.