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.
Aprilaire Duct Repair & Sealing in Sandy Springs: What to Know First
We provide independent Aprilaire duct repair and sealing in Sandy Springs, typically completing scheduled jobs within one business day of your call. Most Aprilaire systems we encounter run between $340 and $780 for full duct sealing or flex duct repair, with a written price delivered before any panel comes off. This page is for homeowners who own an Aprilaire whole-home air cleaner, dehumidifier, or ventilation controller and have noticed uneven airflow, rising energy bills, or dust escaping around duct joints. Call (678) 904-9744 for a free estimate with no obligation.
How Aprilaire Products Fail - and How We Fix Them
- Aprilaire 5000 Series Electronic Air Cleaners - Duct Leakage at the Media Cabinet: The 5010 and 5018 cabinets in Sandy Springs homes often develop gaps where the cabinet meets the return plenum, the large distribution box that feeds air into your duct runs. Georgia’s humidity cycles swell and shrink the gasket material, creating a bypass that lets unfiltered air into the system. We remove the cabinet, reseat it with fresh gasket, and seal the joint with mastic sealant, a thick, brush-applied paste that hardens into an airtight bond.
- Aprilaire 800 Steam Humidifiers - Flex Duct Collapse Near the Humidifier: The 800 series mounts directly to the supply plenum and injects high-temperature steam, which degrades standard flex duct within 18 inches of the unit. In Sandy Springs, we see this most in homes north of I-285 where builders used lighter-gauge flex in the 2015-2019 construction boom. We replace the damaged section with insulated flex rated for high heat, secure it with metal collars rather than zip ties, and seal every joint with mastic.
- Aprilaire 1820/1830 Dehumidifiers - Negative Pressure on Return Ductwork: These whole-home dehumidifiers tie into existing return ducts and can pull 200+ CFM, exposing weak joints in older metal ductwork. The symptom is a whistling sound near the unit, not from the dehumidifier itself but from air being drawn through gaps in the return run. We pressure-test the return path, mark every leak point with a smoke pencil, then seal with mastic and fiberglass mesh tape for structural reinforcement.
- Aprilaire Model 8126 Ventilation Controller - Fresh Air Duct Disconnection: The 8126 brings outside air into the return, but the dedicated 6-inch flex duct often separates at the exterior wall penetration in Sandy Springs homes with crawl space runs. Settling soil, rodent activity in the Spalding Drive corridor, or simple compression from storage items in the crawl space causes the disconnect. We inspect with a borescope camera, reattach with mechanical fasteners, and seal the exterior penetration with closed-cell foam and metal flashing.
- Aprilaire Zoned System Dampers - Duct Seams Opening Under Cyclic Load: Zoned systems with Aprilaire 6504 or 6506 dampers cycle hundreds of times per month, fatiguing nearby duct seams. The failure isn’t the damper itself but the metal ductwork flexing at the joint. We install a flexible connector, a short fabric or metal bellows section, to absorb the motion, then reseal the surrounding duct with mastic and mesh tape. This preserves the damper warranty while stopping the leak.
Our Aprilaire Duct Repair & Sealing Process

- 1
Photo inspection before equipment moves. We insert a camera into every accessible duct run and photograph the condition at the plenum, elbows, and register boots. The photo comes first. The invoice comes second.
- 2
Written scope and price. Tomas or a senior technician reviews the images with you, identifies every repair point, and delivers a single written price for the complete job. Haven Standard Clause 1: no work starts without a signed written price.
- 3
Parts decision: OEM Aprilaire or quality aftermarket. For cabinet gaskets, damper connectors, and flex duct collars, we stock Aprilaire OEM where the warranty requires it. For general duct sealing, we use professional-grade mastic and mesh from Guardsman and Abatement Technologies, brands you can verify independently.
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Repair and seal with documentation. Every joint we open, every seam we seal, is photographed before and after. The crew uses negative-pressure extraction, a vacuum system that captures dust and debris at the source, so nothing enters your living space during the repair.
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Pressure test and airflow verification. We run a duct blaster or manometer test to confirm sealed-system performance, then measure airflow at the registers to verify the repair restored design flow.
- 6
Deliverable: your job record. You receive the complete photo set, the written scope, and the 365-Day Done Right Promise in writing before we pack tools.
Before
AfterWhat Aprilaire Duct Repair & Sealing Costs in Sandy Springs
| Scenario | Typical Range |
|---|---|
| Single flex duct repair/replacement (one run) | $340 - $520 |
| Return plenum reseal with Aprilaire cabinet reset | $480 - $680 |
| Whole-system duct sealing (mastic + mesh, average 2,200 sq ft home) | $620 - $780 |
| Dehumidifier return duct reinforcement + seal | $420 - $590 |
What moves the price: accessibility (crawl space vs. attic), duct material (flex vs. metal vs. duct board), and whether we need to reset an Aprilaire cabinet or damper assembly. We also service Lennox, Trane, and Carrier systems with similar pricing structure. Every estimate is free, written, and valid for 30 days. Call (678) 904-9744 for an exact quote on your Aprilaire system.
Why Sandy Springs Homeowners Call CleanRun Air Duct Cleaning Sandy Springs for Aprilaire Work

We’ve been working Sandy Springs since 2013, including the older ranch homes along Spalding Drive where ductwork hasn’t been touched since the Carter administration. Our crews know the difference between an Aprilaire 5000 series cabinet leak and a general return duct failure, and we stock the gaskets and collars to fix both without waiting on shipping. Every technician is background-checked and uniformed under Haven Standard Clause 3: Verified Crews. The 365-Day Done Right Promise means if a seal opens or a repair fails, we return and make it right, backed in writing, not subject to manager approval. You also get a Free Second Opinion on any competitor’s written estimate, no charge.
FAQs
No, if the work is performed by a qualified technician using OEM-specified materials. As an independent Aprilaire service provider, we use Aprilaire OEM gaskets and hardware where the warranty requires them, and we document every part number in your job record. If your unit is still under manufacturer warranty, we note the repair details in writing so you have proof the work was done to specification. Call (678) 904-9744 if you need help verifying your warranty status.
Every duct run is photographed before and after, and you receive the complete image set as part of your standard job record. We also run a pressure test or manometer reading to measure leakage reduction, and we show you the numbers. If a crew can’t show you a photo of your own ductwork, they didn’t document the work. For a free estimate with full documentation, call (678) 904-9744.
Replace if the duct board is crumbling, metal is rusted through in multiple locations, or the system was originally sized wrong for your home. Repair if the damage is localized to a few joints, one or two flex runs, or seal failures around an Aprilaire component. We give you both options in writing with prices for each, and we flag any safety issue we find, such as a disconnected return pulling attic air into your living space. Call (678) 904-9744 for an honest assessment.
Most scheduled jobs finish in four to six hours. A single flex duct replacement might take two hours; a whole-system seal on a 3,000-square-foot home takes a full day. We don’t rush the mastic curing time, typically 24 hours for full hardness, though the system can run normally during that period. We’ll give you a time estimate in your written scope before work starts.
We stock common Aprilaire gaskets, cabinet hardware, and damper connectors for the 5000, 6500, and 800 series. For obsolete or specialized parts, we source from Aprilaire’s distributor network with typical lead times of two to three business days. If a part delay affects your schedule, we tell you before you sign the written price, not after the crew arrives.
Written by Tomas Reyes, Owner, CleanRun Air Duct Cleaning Sandy Springs at CleanRun Air Duct Cleaning Sandy Springs, serving Sandy Springs and nearby areas.




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