Fast, Reliable Duct Repair & Sealing Across Peachtree Corners
Duct repair and sealing in Peachtree Corners typically runs $280-$650 for most residential jobs, with same-day or next-day scheduling available throughout 30092. If your home was built during the Technology Park Atlanta boom years, your ductwork is likely 35-50 years old and showing it. Call Bellows Air Duct & Vent Co. at (844) 685-6342 for a free estimate and camera inspection.
We’ve been driving to Peachtree Corners since 1984. We know the difference between a 1978 ranch off Peachtree Parkway and a 1992 Colonial near Technology Park, and we know what kind of ductwork each one hides in the attic. Our technicians are background-checked, uniformed, and carry the equipment to finish most repairs in a single visit. Calls are answered by a live person 24 hours a day, and we’ll be there when we say.
Why Bellows Air Duct & Vent Co. Is Peachtree Corners’s Preferred Duct Repair & Sealing Company
Our reputation in Peachtree Corners was built one house at a time, mostly by homeowners who called us after a bad experience with a low-bid operator. They stay because we show them the problem on camera before we quote a price, and we show them the fix on camera before we leave. The 90-Day Done Right Promise is stamped on every job in writing - if it’s not right, we make it right, no paperwork, no arguing.
Peachtree Corners customers specifically mention our upfront pricing in reviews. The number on the phone is the number on the invoice. No bait coupons, no price changes at the door. We’ve kept that promise for over 42 years.
Response time to Peachtree Corners is typically same-day or next-day, depending on when you call. Emergency service is available for complete duct failures, especially during the summer months when attic temperatures in Peachtree Corners can render a home unlivable if conditioned air is leaking into the roof space.
We understand the local building patterns. The concentration of 1970s-1990s homes here is unusual for metro Atlanta, and the ductwork failures we see reflect that specific era of construction. Our Duct Repair & Sealing team carries materials suited to older flex-duct and fiberglass duct board systems that many newer companies simply don’t stock.
Our Duct Repair & Sealing Services in Peachtree Corners
Duct Sealing
Duct sealing in Peachtree Corners addresses the gaps, cracks, and disconnected joints that develop after decades of thermal cycling in unconditioned attics. We use professional-grade mastic sealant and metal-backed tape, not the hardware-store foil tape that fails within a season. A typical duct sealing job for a 2,500 square foot Colonial in the Technology Park area takes 4-6 hours and runs $380-$550. Every joint is sealed, every connection tested, and the results are camera-verified before we leave.

Flex Duct Repair
Flex duct in Peachtree Corners attics suffers from two forces: the 130-140°F summer heat that degrades the plastic liner and adhesive, and the humidity that swells and weakens the insulation jacket. We repair flex duct by replacing damaged sections with new, properly sized flex, securing with mechanical fasteners rather than tape alone, and reinsulating to R-8 minimum. For a Peachtree Corners ranch home with original 1970s flex duct, partial repair is often possible if the main trunk is sound. We’ll show you on camera and tell you straight whether repair or replacement makes sense.

Metal Duct Repair
Some Peachtree Corners homes, particularly later builds from the late 1980s and early 1990s, used galvanized sheet metal for main trunks. We repair separated seams, rust-through spots, and damaged collars. Metal duct repair typically involves cutting out corroded sections, fabricating replacement pieces, and sealing with mastic. Costs run $320-$480 for localized repairs. If the metal is extensively rusted from condensation, we’ll tell you.

Duct Insulation
Peachtree Corners homes with ductwork in unconditioned attics lose enormous efficiency through thin or degraded insulation. We install new fiberglass duct wrap or replace insulation on existing metal and duct board systems. Proper insulation also reduces condensation that leads to mold growth, a particular concern near the Chattahoochee River corridor where humidity runs higher. Duct insulation jobs in Peachtree Corners typically range from $450-$720 depending on linear footage and attic accessibility.

What happens when you call
- 1
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 Peachtree Corners
We stock sealing materials and repair components from Nikro, Honeywell, and Aprilaire - the same brands serious HVAC contractors specify for permanent repairs. For Peachtree Corners homeowners, this means no waiting on special orders for most jobs. Our trucks carry mastic sealant, flex duct in common diameters, fiberglass duct board, metal collars, and insulation wrap so we can complete repairs in one visit. If your system uses specialized components, we’ll source them fast and give you a straight timeline.
Common Duct Repair & Sealing Problems We See in Peachtree Corners Homes
- Fiberglass duct board inner liners delaminate after 35-50 years, shedding glass fibers into conditioned air. This is the signature failure of Peachtree Corners’s Technology Park-era housing stock. We find it regularly in homes off Peachtree Parkway and near Holcomb Bridge Road. The inner liner separates from the fiberglass core, and the air stream carries particles into your living space. Camera inspection reveals the damage immediately.
- Flex-duct connections in unconditioned attics fail due to persistent 130-140°F attic heat degrading adhesive and insulation. The adhesive that bonds flex-duct inner liners to collars softens and releases after years of thermal cycling. We repair with mechanical fasteners and proper support straps so the connection lasts.
- Condensation at registers and flex-duct junctions, especially near the Chattahoochee River humidity pocket, accelerates mold and mildew growth. Homes in the western reaches of Peachtree Corners, closer to the river corridor, see this more severely. Sealing and insulating the duct system reduces the temperature differential that causes condensation.
- Disconnected supply trunks dumping conditioned air into attic spaces. We find this in older Peachtree Corners homes where original duct support straps have corroded or broken. The homeowner notices weak airflow and rising energy bills. A camera inspection locates the breach, and we reconnect and support the trunk properly.
Pricing for Duct Repair & Sealing in Peachtree Corners, GA
Here is what duct repair and sealing costs in the Peachtree Corners market:
- Duct sealing (whole system): $380-$550
- Flex duct repair (per section): $180-$340
- Metal duct repair (localized): $320-$480
- Duct insulation (per linear foot): $8-$14
- Fiberglass duct board repair/replacement: $420-$680
- Emergency service call: standard rates apply, no after-hours surcharge
Factors that affect your specific price: attic accessibility, extent of damage visible on camera inspection, whether we can reach all ductwork from existing access points, and whether additional mold remediation is needed. We disclose the full price before lifting a single tool. Our standing offers apply: $50 off any repair over $250, free second opinion on any written estimate, $89 seasonal tune-up, and a permanent 5% senior and veteran discount.
We Also Serve Cities Near Peachtree Corners
Our service area extends to Peachtree Corners and the surrounding communities, including Johns Creek, Dunwoody, Alpharetta, and Roswell. The same 90-Day Done Right Promise, upfront pricing, and camera-verified results apply in every city we serve.
Serving Peachtree Corners, GA - Our Local Coverage Area
We’re based in the Peachtree Corners 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 Peachtree Corners
The Technology Park Atlanta development brought thousands of workers to Peachtree Corners in the 1970s and 1980s, and builders installed fiberglass duct board as the standard of that era. After 35-50 years of heat cycling in unconditioned attics, the inner liner adhesive fails and the fiberglass core sheds particles into your air supply. This is not a maintenance issue; it is material fatigue from age and thermal stress. Call (844) 685-6342 for a camera inspection - estimates are free.
The western boundary of Peachtree Corners along the Chattahoochee River creates a localized humidity pocket that intensifies moisture infiltration into duct systems. Condensation forms at cooler duct surfaces, especially at register connections and flex-duct junctions, accelerating mold growth and insulation degradation. Our repairs in this zone emphasize sealing and insulation upgrades to reduce the temperature differential that causes condensation. Call (844) 685-6342 to schedule - we’ll assess your specific moisture exposure.
Partial repair is often possible if the main trunk is intact and the damage is localized to branch lines. We camera-inspect the entire system to determine which sections are salvageable. On a recent job near Peachtree Parkway, we replaced three degraded branch lines and sealed the remaining trunk, saving the homeowner a full replacement. If the flex duct is brittle throughout or the inner liner is separating everywhere, we’ll recommend replacement and show you why on camera. Call (844) 685-6342 for an honest assessment.
We use professional-grade mastic sealant, metal-backed tape, and insulation materials from Nikro, Honeywell, and Aprilaire. These are the same products specified by commercial HVAC contractors for permanent, code-compliant repairs. We do not use consumer-grade foil tape or spray-on sealants that deteriorate within seasons. Call (844) 685-6342 - we’ll show you exactly what goes into your system.
Most duct sealing jobs for a home that size take 4-6 hours, assuming normal attic access and no unexpected repairs. We complete most jobs in a single visit. The technician will give you a specific time estimate after the initial camera inspection, before any work begins. Call (844) 685-6342 to schedule - we’ll be there when we say.
Written by Ray Castillo, Owner at Bellows Air Duct & Vent Co., serving Peachtree Corners since 1984.