Fast, Reliable Duct Repair & Sealing Across Irving
Duct repair and sealing in Irving typically runs $280-$650 for most residential jobs, with same-day scheduling available when you call before noon. Our Duct Repair & Sealing team covers all Irving ZIP codes - 75014, 75015, 75016, 75017 - and we usually arrive within 90 minutes to homes in Las Colinas or south of SH-183. We’ve been driving these roads since 1984, and we know the difference between a 1968 slab ranch on Grauwyler Road and a 2005 condo tower on O’Connor Boulevard. That matters when you’re deciding whether a boot needs reattachment or an entire flex-duct run needs replacement. Call (844) 685-6342 for a free estimate.
Why Bellows Air Duct & Vent Co. Is Irving’s Preferred Duct Repair & Sealing Company
We’ve worked in Irving long enough to recognize the sound of a supply boot that’s pulled free from floor decking before we even climb into the attic. That kind of local knowledge comes from four decades of crawling through the same housing stock - the original-owner ranches south of Airport Freeway, the mid-rise conversions along Lake Carolyn, the corporate campus buildings that line SH-114.
Our technicians are background-checked, uniformed, and dispatched from a live answering desk that’s staffed 24 hours a day. When you call (844) 685-6342, you reach a person, not a menu. Most Irving jobs are completed in a single visit, and every one starts and ends with a camera inspection - you’ll see the separation, the corrosion, or the mold before we touch it, and you’ll see the sealed, insulated result before we leave.
We don’t bait-switch. The price we quote by phone is the price on the invoice. Our 90-Day Done Right Promise covers every repair: if it’s not right, we return at no charge, no paperwork, no arguing. That’s been our policy since Ray Castillo founded Bellows in 1984.
Our Duct Repair & Sealing Services in Irving
Mastic Sealant Application
Irving’s combination of Gulf humidity and attic temperatures exceeding 160°F in July and August destroys tape adhesives and caulks within two to three seasons. We seal metal-to-metal and metal-to-board joints with professional-grade mastic sealant - Honeywell and Aprilaire products that remain flexible through thermal cycling. In south Irving’s older homes, we apply mastic at every boot collar and plenum connection because the black clay soil beneath those slabs never stops moving. A sealed joint today that accounts for micro-movement stays sealed next year.

Flex Duct Repair & Replacement
The flex-duct runs common in 1960s and 1970s Irving ranches were never designed for four decades of 160°F attic exposure. Liner degradation, sagging between supports, and collapsed sections are routine findings in homes near Belt Line Road or Rochelle Street. We replace damaged flex with insulated R-8 product, properly support it at four-foot intervals, and seal every connection with mastic and mechanical fasteners. In a 1968 ranch home on Grauwyler Road in south Irving, we found the main supply plenum boot had detached from the floor decking due to decades of slab heave, dumping fiberglass insulation and rodent debris into the living room. We reattached the boot with heavy-gauge sheet metal screws, sealed the joint with Honeywell mastic sealant, and insulated the exposed duct board with R-8 wrap. The homeowner reported immediate relief from the musty odor that had plagued the house every summer.

Metal Duct Repair
Galvanized metal ductwork in Las Colinas properties and commercial buildings along SH-114 faces a specific Irving challenge: salt-laden air drifting inland from the Gulf accelerates corrosion at connector joints and fasteners. We replace corroded sections with properly gauged metal, seal with mastic rather than failing tape, and install stainless fasteners where salt exposure is recurrent. Our truck carries sheet metal stock and fabrication tools, so most repairs don’t require a return trip.

Duct Insulation & Condensation Control
Uninsulated or degraded duct board in Irving’s attics becomes a condensation surface every time humid Gulf air meets the 55°F supply air inside. That moisture breeds mold, degrades liner integrity, and eventually collapses the duct structure. We wrap exposed board and metal with R-8 insulation, seal all seams, and verify with camera inspection that no cold-bridge surfaces remain. This is particularly critical in south Irving’s older homes where original insulation has compressed or fallen away entirely.

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 Irving
We stock parts and materials from Nikro, Honeywell, and Aprilaire - the same brands serious HVAC contractors specify for commercial and residential jobs. That means faster turnaround for Irving customers. When we find a failed component in your Las Colinas condo or your ranch home near MacArthur Boulevard, we don’t wait on a parts run to Dallas. Our trucks carry mastic sealants, R-8 insulation wrap, mechanical fasteners, and replacement flex-duct in standard diameters. For commercial-grade multi-zone systems in the Las Colinas corporate corridor, we deploy Nikro and Abatement Technologies negative-pressure equipment that residential-grade operators simply don’t carry.
Common Duct Repair & Sealing Problems We See in Irving Homes
- Black clay soil heave separates supply boots from floor decking. South Irving’s 1960s-1970s slab-on-grade ranch homes on black clay soil repeatedly shift with rain cycles, pulling duct boot collars away from floor decking and allowing attic contaminants into supply streams - a failure pattern nearly absent in newer-construction suburbs like Frisco or McKinney. We inspect every boot collar with a camera before declaring a job complete.
- Gulf salt air corrodes metal connectors and fasteners. Coastal salt air drifting inland from the Gulf accelerates corrosion on metal duct connectors and fasteners, especially in older homes near the Las Colinas corporate corridor where HVAC systems run year-round. We replace corroded hardware with stainless or coated fasteners and seal joints with mastic that won’t degrade from salt exposure.
- Attic heat and humidity destroy duct-board liners. Condensation on duct-board surfaces inside sweltering 160°F+ attics during Irving’s humid Gulf summers promotes mold colonization, requiring thorough remediation before sealing. We don’t seal over mold - we treat or remove contaminated board, then seal and insulate to prevent recurrence.
- Original flex-duct sags and collapses after decades of thermal cycling. The flex-duct runs in Irving’s older homes often hang unsupported or have compressed to half their original diameter, choking airflow and forcing the HVAC system to overwork. We replace with properly supported, insulated flex that restores designed airflow.
Pricing for Duct Repair & Sealing in Irving, TX
A typical supply boot reattachment and sealing in a south Irving slab home runs $280-$380. Full flex-duct replacement for a single run in an attic space ranges $340-$520 depending on length and access difficulty. Metal duct section repair with mastic sealing and insulation wrap typically falls between $420-$650. Multi-zone commercial system work in Las Colinas properties is quoted site-specific, but residential-style equipment is rarely adequate - we use truck-mounted negative-pressure systems that add $180-$290 to base labor.
What moves the number: attic access difficulty, extent of mold remediation required before sealing can begin, and whether we’re working with standard residential duct or commercial-grade metal. We disclose every line item before lifting a tool. Our standing offers apply: $50 off any repair over $250, free second opinion on any written estimate you bring us, and a permanent 5% senior and veteran discount.
Call (844) 685-6342 for an exact quote - estimates are free.
We Also Serve Cities Near Irving
Our service radius extends naturally from our Irving base to neighboring communities. We regularly perform Duct Repair & Sealing in Irving and surrounding areas including Farmers Branch to the north, University Park and Highland Park to the east, and Dallas proper. The same technicians, same equipment, same upfront pricing policy applies whether we’re working on a Park Cities estate or a Farmers Branch townhome.
Serving Irving, TX - Our Local Coverage Area
We’re based in the Irving 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 Irving
Every two to three years, or immediately if you notice musty odors, uneven cooling, or rising energy bills. The black clay soil beneath these homes never stabilizes, and we’ve found fresh boot separarations in houses we inspected just eighteen months prior. A camera inspection takes under an hour and reveals problems before they contaminate your living space. Call (844) 685-6342 to schedule - estimates are free.
Yes, if the pollen is entering through leaks in your return or supply ductwork rather than through doors and windows. Mountain cedar pollen carried by northwesterly winds from December through February can be pulled directly into leaky return systems, bypassing your filter entirely. We pressurize the duct system to locate leaks, seal them with mastic, and verify with post-repair testing. Call (844) 685-6342 for an inspection - estimates are free.
No, and any contractor who says otherwise is guessing. Multi-zone commercial systems in Las Colinas require truck-mounted negative-pressure equipment from Nikro or Abatement Technologies - the same gear we use for corporate campus jobs along SH-114. Our technicians are trained on commercial duct geometry and zone-damper configurations. Call (844) 685-6342 to discuss your building’s specifications - estimates are free.
Proper insulation and complete air sealing. Uninsulated or poorly sealed duct board becomes a condensation surface whenever the supply air inside drops below the dew point of the attic air - a daily occurrence in Irving from June through September. We wrap all exposed board with R-8 insulation, seal every seam with mastic, and verify with thermal imaging that no cold bridges remain. Call (844) 685-6342 for an assessment - estimates are free.
Yes. That specific odor pattern - musty, worse in summer, strongest at floor-level supply registers - is the signature of a detached boot collar pulling attic air and contaminants into your living space. We’ve traced this exact symptom to boot separations in dozens of south Irving slab homes. A camera inspection confirms it in minutes. Call (844) 685-6342 - we’ll check it out, and estimates are free.
Written by Ray Castillo, Owner at Bellows Air Duct & Vent Co., serving Irving since 1984.