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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AfterHow Much Does Duct Repair & Sealing Cost in Sandy Springs, GA?
Our Duct Repair & Sealing services in Sandy Springs, GA typically cost between $350 and $1,200 for a standard single-family home, with most jobs landing in the $450-$750 range depending on the number of breach points, duct material, and how accessible the runs are. Aeroseal-based whole-system sealing starts around $900 and can reach $2,000+ for larger homes with significant leakage. At CleanRun, every price is written down before any panel comes off – that number is yours whether you hire us or not.
Duct Repair & Sealing Cost Breakdown (2026)
The table below reflects actual pricing in the Sandy Springs market as of 2026. Homes in Sandy Springs range from 1960s ranch-style builds in Chastain Park to large two-story colonials in Riverside and newer construction in Hammond Hills – duct configurations vary significantly across those building eras, and price follows configuration.
| Service | Typical Price Range | Notes |
|---|---|---|
| Single duct breach repair (mastic + tape) | $75 – $175 per breach | Accessible attic/crawlspace runs; price rises if duct must be repositioned |
| Flex duct replacement (per 6-ft section) | $90 – $220 | Common in Sandy Springs homes built 1985-2005; crushed or torn flex is a frequent find |
| Sheet metal duct reseal (per joint) | $55 – $130 per joint | Older slip-joint systems with dried-out original tape; full runs may have 8-12 joints |
| Plenum repair or reattachment | $180 – $450 | Supply or return plenum separation at the air handler; priority fix – conditioned air dumps directly into unconditioned space |
| Full manual mastic sealing (whole system) | $450 – $900 | Technician seals every accessible joint and seam with brushed mastic; photo record of every run included |
| Aeroseal whole-system injection sealing | $900 – $2,100 | Pressurized polymer injected into the system seals interior surfaces; effective on leaks inside walls or inaccessible chases |
| Register or boot sealing/reattachment | $40 – $95 per register | Gaps at floor and ceiling registers are a common energy loss point in Sandy Springs homes |
| Full duct replacement (per linear foot) | $20 – $60 per linear foot | Quoted separately; total runs in a 2,400 sq ft home often run 150-250 linear feet |
| Post-repair duct leakage test (blower door + duct blaster) | $150 – $350 | Confirms leakage reduction with a measurable number, not an estimate |
Most homeowners in Sandy Springs end up paying for 3-6 repair points discovered during the initial camera inspection, plus mastic sealing across the main trunk and branch runs. A mid-range job – say, two flex duct section replacements, four joint reseals, and a plenum reattachment on a 2,200 sq ft home in Dunwoody Farms – typically comes in between $580 and $800 with the documented photo record included as part of the standard deliverable. That photo record is not an add-on. It is part of every job CleanRun completes, a practice held since Tomas Reyes ran the first job in 2013.
What drives cost up: inaccessible runs buried inside walls or between floors, corrugated flex duct in rough shape throughout (common in the 1990s-era builds along the Hammond Drive corridor), or a system where the original installation used standard HVAC tape that has since dried and peeled – which is most systems older than 12 years in this climate. What drives cost down: a newer system with minimal breach points, good attic access, and rigid sheet metal main trunk with only a few flex branch runs.
What Affects Duct Repair & Sealing Pricing in Sandy Springs
- Home age and construction era. Sandy Springs has a wide range of housing stock. Homes built before 1985 in neighborhoods like Blue Heron and Spalding often have rigid sheet metal duct systems that need joint resealing and mastic work. Homes from the 1990s and early 2000s near Perimeter Center and North Springs frequently have flex duct installations – some in reasonable shape, many with kinks and tears that have been worsening since the system was installed. Each era has its own failure profile, and pricing follows accordingly.
- Number and location of breach points. A single accessible breach in an open attic is a straightforward repair. Multiple breaches distributed across in-wall chases or behind finished ceilings change the scope significantly. In Sandy Springs, split-level and multi-story homes in areas like Heards Ferry sometimes have duct runs that are simply not accessible without opening finished surfaces – that cost is scoped and priced upfront, not discovered mid-job.
- Duct material type. Rigid fiberglass duct board, sheet metal, and flexible duct each require different repair approaches and materials. Flex duct that has been kinked or crushed – often found near registers in attic installations – typically needs replacement rather than patching, which is a higher per-unit cost than sealing intact joints on a metal trunk line.
- System leakage rate. A system leaking 15% of conditioned air is a different repair scope than one leaking 35%. Homes in Sandy Springs with high ceilings and two-zone HVAC systems (common in the larger homes near the Chattahoochee River corridor) often have longer duct runs and correspondingly more potential seam failures. A duct leakage test – a duct blaster pressurization test – establishes the actual leakage percentage before sealing, so you have a number to compare against after the work is done.
- Accessibility and attic conditions. Georgia attics in summer are a working environment that affects how long a technician can safely work in a given space. Sandy Springs homes with deep, accessible attics over a main floor make for efficient work. Shallow knee-wall attics or cramped mechanical chases slow the work down, and that labor reality is reflected honestly in the written scope.
- Sealing method chosen. Manual mastic sealing is the industry standard for accessible joints – it’s durable, code-compliant, and costs less than injection-based methods. Aeroseal is the right call when leakage is coming from inside wall cavities or inaccessible interior sections, because the polymer travels through the pressurized system and seals from the inside out. The price difference between the two methods is real, and CleanRun explains which one applies to your specific system before any price is written.
- Whether duct cleaning precedes repair. If the duct system hasn’t been cleaned in several years – which is common in Sandy Springs homes where the previous owners deferred maintenance – we typically recommend cleaning before sealing. Sealing over a debris-lined duct run is possible but suboptimal; mastic adhesion is better on a clean surface, and the camera inspection done during cleaning identifies breach points that might otherwise be missed. Combined service pricing is lower than booking each separately.
BeforeAfterSandy Springs-Specific Factors That Affect Duct Repair Costs
Sandy Springs sits in a climate zone that puts real mechanical stress on duct systems. Summers regularly push past 90°F with humidity that keeps dew points elevated through September, and winter lows in the low 20s are not unusual in years with strong Arctic fronts. That temperature swing – easily 70 degrees of differential between the coldest and hottest days – causes duct materials to expand and contract repeatedly. Over 10-15 years, that cycling works sealed joints loose and causes flex duct connectors to pull away from their boot fittings.
We see it most consistently in three patterns: register-to-boot separations at floor-level supplies in homes along the Sandy Springs perimeter near Roswell Road (flex duct tends to sag and pull at the connection point), plenum separations at the air handler in attic-mounted systems in Glenridge and Northwood, and dried-out original duct tape on the main trunk lines in 1970s-era homes closer to the city center. That original gray cloth-backed tape – often called “duct tape” but ironically the worst long-term choice for duct systems – dries out in Georgia attic heat and loses adhesion completely. The camera shows it clearly, the photo goes in the job record, and the mastic application is documented after.
Georgia’s energy code (Georgia Energy Code, based on IECC standards) requires that duct systems in conditioned spaces meet specific leakage thresholds – relevant if you’re pulling a building permit for an HVAC replacement or addition. Most repair-and-seal work on existing systems does not require a permit in Sandy Springs, but whole-system Aeroseal jobs tied to a new air handler installation typically do. Tomas Reyes and the CleanRun team clarify permit requirements in the written scope when they apply, so there are no surprises at inspection.
How to Save on Duct Repair and Sealing in Sandy Springs
The most reliable way to control cost is to get the actual numbers before making any decisions. That sounds obvious, but a significant portion of the homeowners who call CleanRun have already paid a competitor for work based on a verbal estimate that expanded once the crew was on site. Written upfront pricing – Haven Standard Clause 1 – means the number on the page is the number on the invoice. That protection alone is worth the call.
Combine duct cleaning and sealing into one visit
If your system is due for cleaning, scheduling both services on the same visit reduces total labor time and typically saves $75-$150 compared to separate appointments. The camera inspection done during cleaning directly informs the sealing scope, so there is no duplicated diagnostic work. We photograph the interior of every run before cleaning and again after sealing – both records are delivered to you as part of the standard job documentation.
Get a written second opinion before agreeing to a large scope
If a competitor has given you a written estimate for duct repair work, CleanRun will put its own number next to it in writing at no charge. This is not a sales pitch – it is a service. If the scopes are the same and the competitor’s number is lower, you now have two data points and can make a real decision. Call (678) 904-9744 to arrange a free second opinion on any written estimate.
Address small repairs before they become large replacements
A single flex duct section with a tear at the boot fitting costs $90-$220 to replace. Left unrepaired through two more Georgia summers, the tear propagates and the section becomes unrepairable, and the labor scope grows when adjacent sections need to come out to access it properly. Early repair is a real money-saver, not a sales line.
Ask specifically about mastic vs. Aeroseal before agreeing to the higher-cost option
Aeroseal is the right tool for specific problems: interior leakage from inaccessible sections. For accessible exterior joint sealing, manual mastic is equally durable, easier to inspect and verify, and costs roughly half as much. A reputable contractor explains which method fits your system. If a contractor recommends Aeroseal for a system with straightforward accessible joints, that is worth questioning.
Request the post-sealing leakage test
A duct blaster test after sealing costs $150-$350 but gives you a measured percentage reduction in leakage – a real number, not an estimate. That number matters if you are applying for Georgia Power’s energy efficiency rebates (which have been available in previous cycles for qualifying duct work) or documenting the improvement for a home sale. It also holds the contractor accountable: if the leakage number hasn’t moved, the work didn’t do what it was supposed to do.
What CleanRun Does Differently on Duct Repair Jobs in Sandy Springs
The Duct Repair & Sealing in Sandy Springs service CleanRun provides starts with a camera run through every accessible duct section. What the camera shows goes into the photo record. What the photo record shows goes into the written scope. What the written scope says is the price. That chain – camera to photo to scope to price – exists because it is the only way to make a claim about duct work that can actually be verified later.
Tomas Reyes built CleanRun on one operating principle: show the customer what was found before saying a word about what should happen next. That means the before-photo exists before any conversation about repair options. Across 52,000+ homes served since 2013, every job has followed that sequence. The 365-Day Done Right Promise means that if something in the repair scope fails or was missed, CleanRun comes back and corrects it – in writing, not subject to manager approval.
Equipment on duct repair jobs includes Rotobrush inspection systems for duct camera work, Nikro negative-pressure equipment for cleaning preceding sealing, and Abatement Technologies filtration units when particulate management is needed in occupied spaces. These are trade-recognized brands. You can look them up independently before agreeing to a price.
Background-checked, uniformed technicians – operating under Haven Standard Clause 3: Verified Crews – are identified by name before arrival. All calls to CleanRun reach a live person. That is not a marketing line; it is how the operation runs.
From the CleanRun home page you can review the full service list, the H.A.V.E.N. Standard in detail, and the 365-Day Done Right Promise language. Everything that applies to your job is in writing before the crew arrives.
Key Takeaways
- Most Sandy Springs duct repair and sealing jobs cost between $350 and $1,200; the average for a 2,000-2,500 sq ft home is $500-$800.
- Aeroseal whole-system injection sealing costs $900-$2,100 and is appropriate for inaccessible leakage points, not as a replacement for standard mastic sealing on accessible joints.
- Sandy Springs homes built between 1985-2005 along corridors like Hammond Drive and Perimeter Center tend to have flex duct systems that show the most age-related deterioration.
- Georgia’s climate puts real stress on duct seals – expect to revisit sealing every 10-15 years on older systems, sooner if the original installation used cloth-backed tape instead of mastic.
- Written price before work starts, documented photo record when the crew leaves, and a 365-Day Done Right Promise are standard on every CleanRun job – not upgrades.
- A free second opinion on any written competitor estimate is available at no cost – call (678) 904-9744.
FAQs – Duct Repair & Sealing Cost in Sandy Springs
How much does duct sealing cost for a typical Sandy Springs home?
For a 2,000-2,800 sq ft single-family home in Sandy Springs, manual mastic sealing of a standard system with accessible runs costs $450-$900. If your system needs both cleaning and sealing, combined service typically runs $650-$1,100 depending on system condition and run count. Every CleanRun estimate is written down before work begins – call (678) 904-9744 and we’ll give you a firm number for your specific system.
Is Aeroseal worth the extra cost for Sandy Springs homes?
Aeroseal – which runs $900-$2,100 in the Sandy Springs market – is genuinely worth the premium when leakage is coming from inside wall cavities or inaccessible chases where a technician cannot physically reach to apply mastic. For accessible exterior joint sealing, standard mastic performs just as well at roughly half the cost. The distinction matters, and it should appear in the written scope before you agree to anything.
How long does duct repair and sealing take?
A standard repair-and-seal job on a 2,000-2,500 sq ft home in Sandy Springs typically takes 3-5 hours. Homes with attic-mounted systems and good access run on the shorter end. Multi-story homes with in-wall chases or systems that need cleaning before sealing run longer. The written scope CleanRun delivers includes a time estimate alongside the price, so you know what the day looks like before the crew arrives.
Can I just seal the ducts myself to save money?
You can purchase mastic compound and apply it yourself to accessible joints – materials cost roughly $30-$60 for a standard tube-and-brush kit. The limitation is that self-application without a camera inspection leaves you sealing joints you can reach while missing the breach points that are actually causing the most leakage. The plenum separation or the three crushed flex sections behind the knee wall are the expensive energy losses; visible joints near the air handler are rarely the primary problem. A camera inspection before sealing is what makes the work count.
Does duct repair and sealing actually reduce energy bills?
In Sandy Springs homes with significant duct leakage, the reduction is real and measurable. The U.S. Department of Energy estimates that leaky duct systems can waste 20-30% of the conditioned air a system produces – in a Georgia climate where the air conditioner may run 5-6 months of the year, that is a meaningful utility cost. The way to verify the reduction is with a before-and-after duct blaster test, which gives you a measured leakage percentage rather than an estimate. CleanRun can include post-sealing testing in the written scope if you want the numbers in your job record.
Does CleanRun offer a warranty on duct repair work?
Every CleanRun job in Sandy Springs is backed by the 365-Day Done Right Promise: if the repair work is not right within 365 days of the job date, CleanRun returns and corrects it. That warranty is in writing on the job documentation, not subject to manager discretion. The documented photo record – showing the inside of every repaired run before and after – is what makes that promise verifiable rather than decorative.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning Sandy Springs, serving Sandy Springs, GA since 2013.
Pricing reflects the Sandy Springs market as of 2026. CleanRun Air Duct Cleaning Sandy Springs offers free estimates – call (678) 904-9744.
What Our Customers Say
"They found a disconnected duct in the crawl space that had been dumping conditioned air under the house for years. Photographed it, quoted the repair, fixed it."
- Devon A."Flat price agreed up front, no per-vent add-ons at the end. That was the whole reason I did not call the coupon company."
- Suzanne B."The before and after photographs of each run are the reason I used them. You cannot argue with what came out of the return."
- Marguerite O.