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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Before
AfterTrusted Duct Repair & Sealing for Sandy Springs Homeowners
Duct repair and sealing in Sandy Springs typically costs $280-$780 for most residential jobs, with full-system sealing running higher depending on home size and accessibility. If you’re wondering how much Duct Repair & Sealing costs in your specific situation, we can provide an exact quote. CleanRun Air Duct Cleaning Sandy Springs has completed this work in more than 52,000 homes since 2013, every one starting with a written price before any panel comes off. Call (678) 904-9744 and we’ll put our number next to any competitor’s written estimate, free.
The problem we solve is straightforward: conditioned air escaping through gaps, cracks, and failed joints in your ductwork before it ever reaches your rooms. In Sandy Springs, where summer humidity pushes HVAC systems to run 10-12 hours daily and winter cold snaps stress aging flex duct in attics, even a 15% leak rate can add $40-$80 to monthly energy bills. We also provide Roswell Duct Repair & Sealing for homes facing similar conditions just north of here. We’ve photographed collapsed flex duct in Dunwoody Club Forest homes built during the 2015-2019 construction boom, found disconnected metal runs above the finished basements common in Riverside, and sealed plenum leaks in original 1980s ranch homes near Hammond Park that were losing nearly a third of their heated air into the attic.
Our crews carry Rotobrush and Abatement Technologies equipment, and every technician is background-checked and uniformed under Haven Standard Clause 3: Verified Crews. Tomas Reyes established CleanRun in 2013 on one rule: the customer sees the photo before we discuss the fix. That hasn’t changed.
What Our Duct Repair & Sealing Service Includes
Duct Sealing
Duct sealing closes the gaps and cracks where conditioned air leaks out of your supply runs or unconditioned air gets pulled into return lines. In Sandy Springs, we most often find these leaks at plenum connections and where flex duct meets metal trunk lines, especially in homes with attic installations where temperature swings degrade adhesive over time. Our crews use mastic sealant and metal-backed tape rated for HVAC applications, not the hardware-store duct tape that fails within two seasons. Every sealed joint is photographed before and after, and the images are delivered with your job record.
Flex Duct Repair
Flex duct, the insulated flexible tubing common in residential construction since the 1990s, collapses, tears, or separates at its connection collars. We regularly find flex duct in Sandy Springs attics that has been crushed by storage boxes, chewed by rodents in the wooded lots near Lost Corner Preserve, or simply deteriorated after 15-20 years of heat cycling. Our repair replaces damaged sections with new R-8 insulated flex duct, secures it with tension straps and proper support spacing to prevent sagging, and photographs every connection. If the damage is extensive, we’ll show you the full run and quote replacement before cutting anything.
Metal Duct Repair
Galvanized steel ductwork, common in homes built before 1995 and in custom builds throughout Sandy Springs, develops rust at seams, popped joints from pressure imbalances, and holes from corrosion or physical damage. We repair metal duct by realigning separated sections, reinforcing weak points with drive cleats, and sealing with mastic rated for metal substrates. In older Sandy Springs homes near the original downtown corridor, we’ve found original metal duct with no internal insulation that requires careful handling to avoid releasing decades of accumulated debris. Our crews use negative-pressure containment during any metal duct disturbance to protect your indoor air quality.
Duct Insulation
Insulation on ductwork prevents thermal loss as air travels through unconditioned spaces like attics, crawl spaces, and garage chases. In Sandy Springs, where attic temperatures can reach 140°F in July, uninsulated or degraded duct insulation forces your system to overcool or overheat air just to compensate for the journey. We install new fiberglass duct wrap or replace damaged flex duct with properly insulated product, securing it with vapor barriers to prevent condensation in Georgia’s humidity. The before-and-after thermal difference is visible on our camera, and we document it.
Mastic Sealant Application
Mastic is a thick, water-based sealant brushed or sprayed onto duct joints that cures to a flexible, durable bond superior to tape alone. We apply mastic to every metal-to-metal and metal-to-flex connection on sealing jobs, using Guardsman-rated products that maintain adhesion through thousands of thermal cycles. Unlike foil tape, which can peel when oil or dust contaminates the surface, mastic penetrates minor imperfections and creates a continuous seal. Our crews are trained to apply the correct thickness, too thin a coat cracks; too thick wastes material and extends cure time. The application is photographed for your record.
Air Leak Repair
Air leaks in ductwork often show up as hot or cold spots in rooms, whistling sounds, or dust streaks near registers. We locate leaks using a combination of visual inspection, pressure testing, and infrared scanning where needed, then repair based on the source. In Sandy Springs townhomes and condos, we’ve found leaks where builder-grade installation left gaps at drywall penetrations; in larger single-family homes near Morgan Falls, we’ve traced leaks to poorly sealed return air platforms in basements. Every repair is pressure-tested after completion to confirm the seal holds under operating conditions.
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.
Brands We Service for Duct Repair & Sealing
We’ve worked extensively with Aprilaire whole-home air cleaner installations integrated into duct systems throughout Fulton and north DeKalb counties, including their Model 5000 and 6000 series units that require precise duct sealing to maintain rated airflow. Our crews understand the pressure-drop characteristics of these systems and seal accordingly to prevent bypass that would undermine filtration performance. We’ve also serviced hundreds of Honeywell media air cleaner and zoning damper installations, where duct integrity directly affects the accuracy of room-by-room temperature control.
Rotobrush equipment is standard on our trucks for duct cleaning work that often precedes or accompanies sealing, and we’ve used Abatement Technologies HEPA containment systems during duct repairs in occupied homes to protect sensitive occupants. Whether your system includes Aprilaire, Honeywell, or any other make of air handler, filter cabinet, or zoning control, we can assess the ductwork that connects to it and repair what needs fixing. The brand on the box matters less than the condition of the pathways that carry air to and from it.
BeforeAfterSigns You Need Duct Repair & Sealing Right Now
- Rooms that won’t hold temperature. If your master bedroom in Sandy Springs runs 6-8 degrees warmer than the thermostat setting while the kitchen stays comfortable, the duct serving that room is likely leaking or blocked. We’ve found disconnected flex duct completely bypassing second-story rooms in homes near Spalding Drive, where the homeowner had simply adjusted to running the system harder rather than fixing the delivery problem.
- Dust streaks or dark marks around supply registers. These stains indicate air pulling through gaps in your ceiling or wall, carrying attic insulation particles, drywall dust, or other debris into your living space. In Sandy Springs homes with vented attics, this often means your supply register boot isn’t sealed to the drywall, a 10-minute fix that prevents years of air quality degradation.
- Utility bills that climbed without rate increases. A sudden 20-30% jump in your Georgia Power bill, especially if it coincides with seasonal HVAC use, frequently traces to duct leakage your system is compensating for by running longer. We pressure-test duct systems to quantify this loss and show you the actual CFM (cubic feet per minute) escaping before quoting any work.
- Whistling, rattling, or whooshing sounds from ducts. These noises indicate air moving through gaps it shouldn’t, pressure imbalances that strain your blower motor, or loose duct sections vibrating against framing. The sound is a symptom; the underlying leak is costing you money and shortening equipment life. Our diagnostic process locates the source before we open any access panel.
- Musty or chemical odors when HVAC runs. Leaky return ducts in crawl spaces or garages can pull in radon, pesticides, gasoline fumes, or mold spores and distribute them throughout your home. In Sandy Springs’s older neighborhoods with original crawl space construction, we’ve found return leaks pulling air from damp earth that contributed to chronic humidity problems upstairs.
Our Duct Repair & Sealing Process - Step by Step
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Written estimate before work begins. We inspect your accessible ductwork, identify visible damage, and quote a flat price for the agreed scope. Haven Standard Clause 1 requires this; we do not start work on a time-and-materials basis or add charges after arrival. The price you approve is the price you pay.
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Photo documentation of existing conditions. Before touching anything, our technician photographs every duct run we’ll be working on, including plenum connections, trunk lines, and branch takeoffs. These images become the “before” portion of your Documented Photo Record, delivered with your invoice.
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Targeted repair or sealing. Based on the agreed scope, we repair damaged sections, seal joints with mastic and proper tape, replace degraded insulation, and secure loose connections. For metal duct, we use drive cleats and sheet metal screws; for flex, we use tension straps at proper support intervals. Every technique follows SMACNA guidelines for residential duct construction.
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Pressure verification and final photography. After repairs, we verify sealed systems hold pressure under operating conditions and photograph every completed joint and repair. The “after” images are added to your record, showing the actual work performed, not a generic stock photo.
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Written warranty and job record delivery. Your 365-Day Done Right Promise is printed on your invoice, along with the photo record and a description of materials used. If any sealed joint fails within that year, we return and make it right at no charge. No manager approval needed; the promise is in writing.
How Much Does Duct Repair & Sealing Cost in Sandy Springs?
A typical single-room flex duct repair in Sandy Springs runs $280-$420, depending on attic accessibility and whether the damage is localized or extends to the connection collar. Full-system mastic sealing for an average 2,000-square-foot home with accessible attic ductwork typically ranges from $580-$780, while metal duct repair involving section replacement or extensive rust remediation can reach $900-$1,400 in complex installations.
Several factors move these numbers. Attic accessibility is the largest: truss-framed attics with limited headroom require more time and care than open rafter spaces. The extent of existing damage matters; a single disconnected joint costs less than a collapsed run that has been leaking conditioned air for years and caused secondary mold growth in surrounding insulation. Home age affects material compatibility, older metal duct may require custom fabrication that newer snap-lock systems don’t.
To avoid overpaying, get any quote in writing with line-item scope before agreeing to work. The $79 duct cleaning coupon that becomes a $1,200 “discovery” of urgent repairs is a well-documented pattern in this industry. At CleanRun Air Duct Cleaning Sandy Springs, we deliver our written price before any work starts, and our Free Second Opinion on Any Written Estimate means you can bring a competitor’s quote; we’ll put our number next to it with no obligation. Every estimate includes the photo documentation you’ll receive, so you know what you’re paying for.
Call (678) 904-9744 for an exact quote. Estimates are free, and we answer live.
Duct Repair & Sealing Near Sandy Springs - Our Service Area
We complete duct repair and sealing throughout Sandy Springs and neighboring communities, from the townhomes near Perimeter Mall to the estate properties along the Chattahoochee in Roswell and the newer construction in Norcross. Typical scheduling runs 2-4 days for non-urgent repairs, with same-week availability for active leaks affecting system operation. We also regularly service Smyrna, Marietta, Alpharetta, Johns Creek, Decatur, Atlanta, Duluth, Milton, and Kennesaw. Travel time is built into your written price, not added as a surprise fuel surcharge.
Serving Sandy Springs, GA - Our Local Coverage Area
We’re based in the Sandy Springs area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions - Duct Repair & Sealing in Sandy Springs
Duct repair and sealing fixes the physical pathways that carry heated and cooled air between your HVAC equipment and your rooms. Repair addresses damaged or disconnected duct sections, while sealing closes the gaps and cracks where air leaks out or contaminants leak in. At CleanRun Air Duct Cleaning Sandy Springs, every job includes a written scope, documented before-and-after photography of every duct run, and a 365-Day Done Right Promise backed in writing.
Most residential duct sealing jobs in Sandy Springs take 3-5 hours, while single-point repairs like a disconnected flex duct run may take 1-2 hours. Full-system replacement or extensive metal duct repair can extend to a full day. We quote the expected duration in writing with your price, and we don’t leave until the pressure verification is complete and your photo record is ready. Call (678) 904-9744 to schedule.
Single repairs typically run $280-$420, full-system sealing $580-$780, and complex metal duct work $900-$1,400. The exact price depends on home size, attic accessibility, and the extent of existing damage. We deliver a written, flat price before any work starts under Haven Standard Clause 1, and our Free Second Opinion on Any Written Estimate lets you compare our number against any competitor’s quote at no cost. Call (678) 904-9744 for your specific estimate.
Yes. We’ve serviced and sealed ductwork connected to Aprilaire, Honeywell, and dozens of other air handler and filtration brands throughout metro Atlanta. The duct repair process is independent of equipment brand, though integrated components like Aprilaire media cabinets require sealing that maintains their rated airflow and pressure drop. We name the specific materials and techniques in your written scope so you can verify them independently.
We prioritize active leaks that have disabled HVAC operation or created immediate indoor air quality hazards, with scheduling adjusted accordingly. All calls are answered by a live person who can assess urgency and assign the next available technician. We do not charge premium rates for after-hours emergency calls, though the written scope and price are delivered before work begins just as with standard appointments. Call (678) 904-9744 to discuss your situation.
Every duct repair and sealing job is backed by our 365-Day Done Right Promise: if the work is not right, we make it right, in writing on every invoice, not subject to manager discretion. This covers seal failures, joint separations, and material defects. The promise is Haven Standard Clause 5, and it’s been in force since our first job in 2013. We don’t require you to call within 30 days or jump through claim hoops; the warranty period is the full 365 days.
Clear a path to your attic access, crawl space entry, or utility room, and ensure pets are secured away from work areas. You don’t need to move furniture or cover belongings; our crews use drop cloths and containment as needed. If you have recent utility bills showing usage spikes, those can help us correlate symptoms with likely leak locations, but they’re not required. We’ll photograph everything before we start and deliver your record when we finish. Call (678) 904-9744 to book.
Schedule Your Duct Repair & Sealing Service in Sandy Springs Today
Call (678) 904-9744 to speak with a live person and schedule your free estimate. You’ll receive a written price before any work starts, a Documented Photo Record of every duct run we touch, and the 365-Day Done Right Promise in writing on every job. No coupons, no surprises, no per-vent pricing. Just documented work you can verify.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning Sandy Springs, serving Sandy Springs, Alpharetta Duct Repair & Sealing, Norcross, and metro Atlanta since 2013.